FSharp.Compiler.Service

Consider using 'yield!' instead of 'yield'. (Originally from FSComp.txt:38)

This XML comment is invalid: unresolved cross-reference '%s' (Originally from FSComp.txt:1685)

This XML comment is invalid: missing 'name' attribute for parameter or parameter reference (Originally from FSComp.txt:1681)

This XML comment is incomplete: no documentation for parameter '%s' (Originally from FSComp.txt:1686)

This XML comment is invalid: missing 'cref' attribute for cross-reference (Originally from FSComp.txt:1682)

This XML comment is invalid: unknown parameter '%s' (Originally from FSComp.txt:1683)

This XML comment is invalid: multiple documentation entries for parameter '%s' (Originally from FSComp.txt:1684)

This XML comment is invalid: '%s' (Originally from FSComp.txt:1680)

The byref pointer is readonly, so this write is not permitted. (Originally from FSComp.txt:1511)

The value '%s' is not accessible from this code location (Originally from FSComp.txt:980)

Use reference assemblies for .NET framework references when available (Enabled by default). (Originally from FSComp.txt:1568)

This attribute is currently unsupported by the F# compiler. Applying it will not achieve its intended effect. (Originally from FSComp.txt:42)

Parentheses can be removed. (Originally from FSComp.txt:1772)

The union cases or fields of the type '%s' are not accessible from this code location (Originally from FSComp.txt:979)

The union case '%s' is not accessible from this code location (Originally from FSComp.txt:981)

The value or constructor '%s' is not defined. (Originally from FSComp.txt:10)

The value, namespace, type or module '%s' is not defined. (Originally from FSComp.txt:11)

The value, constructor, namespace or type '%s' is not defined. (Originally from FSComp.txt:9)

The type parameter %s is not defined. (Originally from FSComp.txt:18)

The type '%s' is not defined in '%s'. (Originally from FSComp.txt:14)

The type '%s' is not defined. (Originally from FSComp.txt:13)

Maybe you want one of the following: (Originally from FSComp.txt:17)

The record label or namespace '%s' is not defined. (Originally from FSComp.txt:15)

The record label '%s' is not defined. (Originally from FSComp.txt:16)

The pattern discriminator '%s' is not defined. (Originally from FSComp.txt:19)

The namespace or module '%s' is not defined. (Originally from FSComp.txt:6)

The namespace '%s' is not defined. (Originally from FSComp.txt:5)

The type '%s' does not define the field, constructor or member '%s'. (Originally from FSComp.txt:8)

The field, constructor or member '%s' is not defined. (Originally from FSComp.txt:7)

The constructor, module or namespace '%s' is not defined. (Originally from FSComp.txt:12)

The type '%s' implements 'System.IComparable'. Consider also adding an explicit override for 'Object.Equals' (Originally from FSComp.txt:181)

The type '%s' implements 'System.IComparable' explicitly but provides no corresponding override for 'Object.Equals'. An implementation of 'Object.Equals' has been automatically provided, implemented via 'System.IComparable'. Consider implementing the override 'Object.Equals' explicitly (Originally from FSComp.txt:182)

The signature and implementation are not compatible because the respective type parameter counts differ (Originally from FSComp.txt:177)

The signature and implementation are not compatible because the type parameter '%s' has a constraint of the form %s but the implementation does not. Either remove this constraint from the signature or add it to the implementation. (Originally from FSComp.txt:180)

The signature and implementation are not compatible because the declaration of the type parameter '%s' requires a constraint of the form %s (Originally from FSComp.txt:179)

The signature and implementation are not compatible because the type parameter in the class/signature has a different compile-time requirement to the one in the member/implementation (Originally from FSComp.txt:178)

The override for '%s' was ambiguous (Originally from FSComp.txt:197)

The override '%s' implements more than one abstract slot, e.g. '%s' and '%s' (Originally from FSComp.txt:200)

No implementations of '%s' had the correct number of arguments and type parameters. The required signature is '%s'. (Originally from FSComp.txt:196)

No implementation was given for '%s'. Note that all interface members must be implemented and listed under an appropriate 'interface' declaration, e.g. 'interface ... with member ...'. (Originally from FSComp.txt:207)

No implementation was given for those members: %sNote that all interface members must be implemented and listed under an appropriate 'interface' declaration, e.g. 'interface ... with member ...'. (Originally from FSComp.txt:208)

No implementation was given for those members (some results omitted): %sNote that all interface members must be implemented and listed under an appropriate 'interface' declaration, e.g. 'interface ... with member ...'. (Originally from FSComp.txt:209)

No implementation was given for those members (some results omitted): %s (Originally from FSComp.txt:206)

No implementation was given for those members: %s (Originally from FSComp.txt:205)

No implementation was given for '%s' (Originally from FSComp.txt:204)

A type has been implicitly inferred as 'obj', which may be unintended. Consider adding explicit type annotations. You can disable this warning by using '#nowarn \"3559\"' or '--nowarn:3559'. (Originally from FSComp.txt:1747)

The interface '%s' is included in multiple explicitly implemented interface types. Add an explicit implementation of this interface. (Originally from FSComp.txt:202)

The named argument '%s' has been assigned more than one value (Originally from FSComp.txt:203)

More than one override implements '%s' (Originally from FSComp.txt:198)

The namespace or module attributes differ between signature and implementation (Originally from FSComp.txt:194)

The method '%s' is sealed and cannot be overridden (Originally from FSComp.txt:199)

This method is over-constrained in its type parameters (Originally from FSComp.txt:195)

The member '%s' matches multiple overloads of the same method.\nPlease restrict it to one of the following:%s. (Originally from FSComp.txt:1404)

The member '%s' does not have the correct number of method type parameters. The required signature is '%s'. (Originally from FSComp.txt:211)

The member '%s' does not have the correct number of arguments. The required signature is '%s'. (Originally from FSComp.txt:210)

The member '%s' does not have the correct kinds of generic parameters. The required signature is '%s'. (Originally from FSComp.txt:212)

The member '%s' cannot be used to implement '%s'. The required signature is '%s'. (Originally from FSComp.txt:213)

Invalid value (Originally from FSComp.txt:176)

You cannot implement the interface '%s' with the two instantiations '%s' and '%s' because they may unify. (Originally from FSComp.txt:1639)

'%s' cannot implement the interface '%s' with the two instantiations '%s' and '%s' because they may unify. (Originally from FSComp.txt:1638)

Interface member '%s' does not have a most specific implementation. (Originally from FSComp.txt:1566)

The struct, record or union type '%s' has an explicit implementation of 'Object.GetHashCode' or 'Object.Equals'. You must apply the 'CustomEquality' attribute to the type (Originally from FSComp.txt:183)

The struct, record or union type '%s' has an explicit implementation of 'Object.GetHashCode'. Consider implementing a matching override for 'Object.Equals(obj)' (Originally from FSComp.txt:184)

The struct, record or union type '%s' has an explicit implementation of 'Object.Equals'. Consider implementing a matching override for 'Object.GetHashCode()' (Originally from FSComp.txt:185)

Duplicate or redundant interface (Originally from FSComp.txt:201)

The implicit instantiation of a generic construct at or near this point could not be resolved because it could resolve to multiple unrelated types, e.g. '%s' and '%s'. Consider using type annotations to resolve the ambiguity (Originally from FSComp.txt:172)

Could not resolve the ambiguity in the use of a generic construct with an 'unmanaged' constraint at or near this position (Originally from FSComp.txt:1096)

Could not resolve the ambiguity inherent in the use of a 'printf'-style format string (Originally from FSComp.txt:173)

Could not resolve the ambiguity in the use of a generic construct with an 'enum' constraint at or near this position (Originally from FSComp.txt:174)

Could not resolve the ambiguity in the use of a generic construct with a 'delegate' constraint at or near this position (Originally from FSComp.txt:175)

The type '%s' is not accessible from this code location (Originally from FSComp.txt:978)

union case (Originally from FSComp.txt:956)

property (Originally from FSComp.txt:961)

patvar (Originally from FSComp.txt:966)

and %d other overloads (Originally from FSComp.txt:955)

namespace/module (Originally from FSComp.txt:969)

namespace (Originally from FSComp.txt:967)

module (Originally from FSComp.txt:968)

generated type (Originally from FSComp.txt:973)

generated property (Originally from FSComp.txt:972)

Full name (Originally from FSComp.txt:951)

also from %s (Originally from FSComp.txt:971)

from %s (Originally from FSComp.txt:970)

field (Originally from FSComp.txt:959)

extension (Originally from FSComp.txt:962)

event (Originally from FSComp.txt:960)

custom operation (Originally from FSComp.txt:963)

Calls (Originally from FSComp.txt:1308)

argument (Originally from FSComp.txt:964)

anonymous record field (Originally from FSComp.txt:965)

active recognizer (Originally from FSComp.txt:958)

active pattern result (Originally from FSComp.txt:957)

\nA tuple type is required for one or more arguments. Consider wrapping the given arguments in additional parentheses or review the definition of the interface. (Originally from FSComp.txt:39)

The specified .NET Framework version '%s' is not supported. Please specify a value from the enumeration Microsoft.Build.Utilities.TargetDotNetFrameworkVersion. (Originally from FSComp.txt:1146)

The type '%s' has too many methods. Found: '%d', maximum: '%d' (Originally from FSComp.txt:1782)

Unexpected Expr.TyChoose (Originally from FSComp.txt:988)

Note: Lambda-lifting optimizations have not been applied because of the use of this local constrained generic function as a first class value. Adding type constraints may resolve this condition. (Originally from FSComp.txt:989)

The 'VolatileField' attribute may only be used on 'let' bindings in classes (Originally from FSComp.txt:682)

Volatile fields must be marked 'mutable' and cannot be thread-static (Originally from FSComp.txt:736)

A declaration may only be given a value in a signature if the declaration has the [<Literal>] attribute (Originally from FSComp.txt:734)

Declaring \"interfaces with static abstract methods\" is an advanced feature. See https://aka.ms/fsharp-iwsams for guidance. You can disable this warning by using '#nowarn \"3535\"' or '--nowarn:3535'. (Originally from FSComp.txt:1729)

'%s' is normally used as a type constraint in generic code, e.g. \"'T when ISomeInterface<'T>\" or \"let f (x: #ISomeInterface<_>)\". See https://aka.ms/fsharp-iwsams for guidance. You can disable this warning by using '#nowarn \"3536\"' or '--nowarn:3536'. (Originally from FSComp.txt:1730)

In sequence expressions, multiple results are generated using 'yield!' (Originally from FSComp.txt:657)

'use' expressions may not be used in queries (Originally from FSComp.txt:1325)

The use of 'let! x = coll' in sequence expressions is not permitted. Use 'for x in coll' instead. (Originally from FSComp.txt:655)

This declaration is not supported in recursive declaration groups (Originally from FSComp.txt:1394)

This attribute cannot be used in this version of F# (Originally from FSComp.txt:708)

This is not a known query operator. Query operators are identifiers such as 'select', 'where', 'sortBy', 'thenBy', 'groupBy', 'groupValBy', 'join', 'groupJoin', 'sumBy' and 'averageBy', defined using corresponding methods on the 'QueryBuilder' type. (Originally from FSComp.txt:1328)

Arguments to query operators may require parentheses, e.g. 'where (x > y)' or 'groupBy (x.Length / 10)' (Originally from FSComp.txt:1336)

Unrecognized attribute target. Valid attribute targets are 'assembly', 'module', 'type', 'method', 'property', 'return', 'param', 'field', 'event', 'constructor'. (Originally from FSComp.txt:699)

The unnamed arguments do not form a prefix of the arguments of the method called (Originally from FSComp.txt:676)

Unknown union case (Originally from FSComp.txt:529)

Unit-of-measure cannot be used in type constructor application (Originally from FSComp.txt:566)

This expression uses 'unit' for an 'obj'-typed argument. This will lead to passing 'null' at runtime. This warning may be disabled using '#nowarn \"3397\". (Originally from FSComp.txt:1693)

This union case takes one argument (Originally from FSComp.txt:585)

The union case named '%s' conflicts with the generated type '%s' (Originally from FSComp.txt:1120)

Union case/exception field '%s' cannot be used more than once. (Originally from FSComp.txt:1363)

This union case expects %d arguments in tupled form, but was given %d. The missing field arguments may be any of:%s (Originally from FSComp.txt:586)

This union case does not take arguments (Originally from FSComp.txt:584)

The union case '%s' does not have a field named '%s'. (Originally from FSComp.txt:1359)

Uninitialized 'val' fields must be mutable and marked with the '[<DefaultValue>]' attribute. Consider using a 'let' binding instead of a 'val' field. (Originally from FSComp.txt:737)

Unexpected type arguments (Originally from FSComp.txt:576)

Unexpected %s in type expression (Originally from FSComp.txt:570)

Unexpected / in type (Originally from FSComp.txt:575)

Unexpected source-level property specification (Originally from FSComp.txt:540)

Unexpected source-level property specification in syntax tree (Originally from FSComp.txt:534)

Unexpected SynMeasure.Anon (Originally from FSComp.txt:491)

Unexpected function type in union case field definition. If you intend the field to be a function, consider wrapping the function signature with parens, e.g. | Case of a -> b into | Case of (a -> b). (Originally from FSComp.txt:1769)

Unexpected expression at recursive inference point (Originally from FSComp.txt:519)

Unexpected Const_uint16array (Originally from FSComp.txt:496)

Unexpected Const_bytearray (Originally from FSComp.txt:497)

Unexpected condition in imported assembly: failed to decode AttributeUsage attribute (Originally from FSComp.txt:698)

Unexpected big rational constant (Originally from FSComp.txt:494)

The field '%s' has been given a value, but is not present in the type '%s' (Originally from FSComp.txt:622)

Invalid interpolated string. %s (Originally from FSComp.txt:1665)

Unable to parse format string '%s' (Originally from FSComp.txt:600)

Types cannot inherit from multiple concrete types (Originally from FSComp.txt:786)

Types cannot contain nested type definitions (Originally from FSComp.txt:767)

Struct types are always sealed (Originally from FSComp.txt:798)

Record types are always sealed (Originally from FSComp.txt:796)

Enum types are always sealed (Originally from FSComp.txt:800)

Delegate types are always sealed (Originally from FSComp.txt:799)

Discriminated union types are always sealed (Originally from FSComp.txt:795)

Assembly code types are always sealed (Originally from FSComp.txt:797)

The type '%s' is used in an invalid way. A value prior to '%s' has an inferred type involving '%s', which is an invalid forward reference. (Originally from FSComp.txt:822)

This type test or downcast will erase the provided type '%s' to the type '%s' (Originally from FSComp.txt:1236)

This type test or downcast will ignore the unit-of-measure '%s' (Originally from FSComp.txt:1131)

This type test with a provided type '%s' is not allowed because this provided type will be erased to '%s' at runtime. (Originally from FSComp.txt:1238)

This type requires a definition (Originally from FSComp.txt:783)

The type parameters inferred for this value are not stable under the erasure of type abbreviations. This is due to the use of type abbreviations which drop or reorder type parameters, e.g. \n\ttype taggedInt<'a> = int or\n\ttype swap<'a,'b> = 'b * 'a.\nConsider declaring the type parameters for this value explicitly, e.g.\n\tlet f<'a,'b> ((x,y) : swap<'b,'a>) : swap<'a,'b> = (y,x). (Originally from FSComp.txt:524)

Type parameter cannot be used as type constructor (Originally from FSComp.txt:571)

This type parameter has been used in a way that constrains it to always be '%s' (Originally from FSComp.txt:523)

This value, type or method expects %d type parameter(s) but was given %d (Originally from FSComp.txt:546)

type or module (Originally from FSComp.txt:769)

The type '%s' is not an interface type (Originally from FSComp.txt:744)

This type is not an interface type (Originally from FSComp.txt:762)

This type is not a record type. Values of class and struct types must be created using calls to object constructors. (Originally from FSComp.txt:650)

This type is not a record type (Originally from FSComp.txt:651)

This type is not accessible from this code location (Originally from FSComp.txt:697)

This type has no nested types (Originally from FSComp.txt:569)

This type has no accessible object constructors (Originally from FSComp.txt:660)

type, exception or module (Originally from FSComp.txt:768)

This type does not inherit Attribute, it will not work correctly with other .NET languages. (Originally from FSComp.txt:1527)

The type '%s' does not support a nullness qualification. (Originally from FSComp.txt:1537)

Type definitions may only have one 'inherit' specification and it must be the first declaration (Originally from FSComp.txt:815)

'let' and 'do' bindings must come before member and interface definitions in type definitions (Originally from FSComp.txt:816)

This type definition involves an immediate cyclic reference through a struct field or inheritance relation (Originally from FSComp.txt:811)

This type definition involves an immediate cyclic reference through an abbreviation (Originally from FSComp.txt:810)

This downcast will erase the provided type '%s' to the type '%s'. (Originally from FSComp.txt:1237)

The type '%s' is not a type whose values can be enumerated with this syntax, i.e. is not compatible with either seq<_>, IEnumerable<_> or IEnumerable and does not have a GetEnumerator method (Originally from FSComp.txt:553)

Type abbreviations cannot have members (Originally from FSComp.txt:751)

As of F# 4.1, the accessibility of type abbreviations is checked at compile-time. Consider changing the accessibility of the type abbreviation. Ignoring this warning might lead to runtime errors. (Originally from FSComp.txt:752)

Type abbreviations cannot have interface declarations (Originally from FSComp.txt:760)

Type abbreviations cannot have augmentations (Originally from FSComp.txt:820)

This type abbreviation has one or more declared type parameters that do not appear in the type being abbreviated. Type abbreviations must use all declared type parameters in the type being abbreviated. Consider removing one or more type parameters, or use a concrete type definition that wraps an underlying type, such as 'type C<'a> = C of ...'. (Originally from FSComp.txt:784)

One tuple type is a struct tuple, the other is a reference tuple (Originally from FSComp.txt:1387)

This method or property is not normally used from F# code, use an explicit tuple pattern for deconstruction instead. (Originally from FSComp.txt:1507)

'try/with' expressions may not be used in queries (Originally from FSComp.txt:1329)

'try'/'with' cannot be used within sequence expressions (Originally from FSComp.txt:656)

A trait may not specify optional, in, out, ParamArray, CallerInfo or Quote arguments (Originally from FSComp.txt:1726)

Trait '%s' is static (Originally from FSComp.txt:1724)

Trait '%s' is not static (Originally from FSComp.txt:1725)

Invocation of a static constraint should use \"'T.Ident\" and not \"^T.Ident\", even for statically resolved type parameters. (Originally from FSComp.txt:1728)

The trait '%s' invoked by this call has multiple support types. This invocation syntax is not permitted for such traits. See https://aka.ms/fsharp-srtp for guidance. (Originally from FSComp.txt:1731)

Thread-static and context-static variables must be static and given the [<DefaultValue>] attribute to indicate that the value is initialized to the default value on each new thread (Originally from FSComp.txt:735)

This member, function or value declaration may not be declared 'inline' (Originally from FSComp.txt:1334)

This type definition may not have the 'CLIMutable' attribute. Only record types may have this attribute. (Originally from FSComp.txt:1316)

Invalid provided field. Provided fields of erased provided types must be literals. (Originally from FSComp.txt:1345)

The syntax 'expr.id' may only be used with record labels, properties and fields (Originally from FSComp.txt:671)

Syntax error - unexpected '?' symbol (Originally from FSComp.txt:592)

'%s' may only be used to construct object types (Originally from FSComp.txt:620)

SynType.Or is not permitted in this declaration (Originally from FSComp.txt:1736)

This expression implicitly converts type '%s' to type '%s'. See https://aka.ms/fsharp-implicit-convs. (Originally from FSComp.txt:1678)

The struct, record or union type '%s' has the 'StructuralEquality' attribute but the component type '%s' does not satisfy the 'equality' constraint (Originally from FSComp.txt:1076)

The struct, record or union type '%s' has the 'StructuralEquality' attribute but the type parameter '%s' does not satisfy the 'equality' constraint. Consider adding the 'equality' constraint to the type parameter (Originally from FSComp.txt:1075)

The struct, record or union type '%s' has the 'StructuralComparison' attribute but the component type '%s' does not satisfy the 'comparison' constraint (Originally from FSComp.txt:1070)

The struct, record or union type '%s' has the 'StructuralComparison' attribute but the type parameter '%s' does not satisfy the 'comparison' constraint. Consider adding the 'comparison' constraint to the type parameter (Originally from FSComp.txt:1069)

Each argument of the primary constructor for a struct must be given a type, for example 'type S(x1:int, x2: int) = ...'. These arguments determine the fields of the struct. (Originally from FSComp.txt:1077)

Structs cannot contain value definitions because the default constructor for structs will not execute these bindings. Consider adding additional arguments to the primary constructor for the type. (Originally from FSComp.txt:756)

Structs cannot contain 'do' bindings because the default constructor for structs would not execute these bindings (Originally from FSComp.txt:755)

Structs, interfaces, enums and delegates cannot inherit from other types (Originally from FSComp.txt:785)

Structs cannot have an object constructor with no arguments. This is a restriction imposed on all CLI languages as structs automatically support a default constructor. (Originally from FSComp.txt:727)

Structs may only bind a 'this' parameter at member declarations (Originally from FSComp.txt:518)

If a multicase union type is a struct, then all fields with the same name must be of the same type. This rule applies also to the generated 'Item' name in case of unnamed fields. (Originally from FSComp.txt:1774)

If a multicase union type is a struct, then all union cases must have unique names. For example: 'type A = B of b: int | C of c: int'. (Originally from FSComp.txt:1396)

Struct types cannot contain abstract members (Originally from FSComp.txt:805)

Static 'val' fields in types must be mutable, private and marked with the '[<DefaultValue>]' attribute. They are initialized to the 'null' or 'zero' value for their type. Consider also using a 'static let mutable' binding in a class type. (Originally from FSComp.txt:738)

Static optimization conditionals are only for use within the F# library (Originally from FSComp.txt:677)

This static member should not have a 'this' parameter. Consider using the notation 'member Member(args) = ...'. (Originally from FSComp.txt:537)

For F#7 and lower, static 'let','do' and 'member val' definitions may only be used in types with a primary constructor ('type X(args) = ...'). To enable them in all other types, use language version '8' or higher. (Originally from FSComp.txt:757)

Interfaces cannot contain definitions of static initializers (Originally from FSComp.txt:722)

A static initializer requires an argument (Originally from FSComp.txt:535)

A static field was used where an instance field is expected (Originally from FSComp.txt:488)

Static bindings cannot be added to extrinsic augmentations. Consider using a 'static member' instead. (Originally from FSComp.txt:1763)

A simple method name is required here (Originally from FSComp.txt:630)

Cannot call '%s' - a setter for init-only property, please use object initialization instead. See https://aka.ms/fsharp-assigning-values-to-properties-at-initialization (Originally from FSComp.txt:669)

In sequence expressions, results are generated using 'yield' (Originally from FSComp.txt:493)

Array method '%s' is supplied by the runtime and cannot be directly used in code. For operations with array elements consider using family of GetArray/SetArray functions from LanguagePrimitives.IntrinsicFunctions module. (Originally from FSComp.txt:1358)

Return values cannot have names (Originally from FSComp.txt:499)

Return types of union cases must be identical to the type being defined, up to abbreviations (Originally from FSComp.txt:742)

'return' and 'return!' may not be used in queries (Originally from FSComp.txt:1327)

Using resumable code or resumable state machines requires /langversion:preview (Originally from FSComp.txt:1700)

Resumable code invocation. Suppress this warning if you are defining new low-level resumable code in terms of existing resumable code. (Originally from FSComp.txt:1704)

Invalid resumable code. Any method of function accepting or returning resumable code must be marked 'inline' (Originally from FSComp.txt:1696)

Invalid resumable code. A 'let rec' occurred in the resumable code specification (Originally from FSComp.txt:1699)

Invalid resumable code. Resumable code parameter must have name beginning with '__expand' (Originally from FSComp.txt:1697)

Invalid resumable code. A resumable code parameter must be of delegate or function type (Originally from FSComp.txt:1698)

The syntax 'type X with ...' is reserved for augmentations. Types whose representations are hidden but which have members are now declared in signatures using 'type X = ...'. You may also need to add the '[<Sealed>] attribute to the type definition in the signature (Originally from FSComp.txt:812)

This is not a variable, constant, active recognizer or literal (Originally from FSComp.txt:589)

The 'let! ... and! ...' construct may only be used if the computation expression builder defines either a '%s' method or appropriate 'MergeSources' and 'Bind' methods (Originally from FSComp.txt:1560)

This control construct may only be used if the computation expression builder defines a '%s' method (Originally from FSComp.txt:567)

Only active patterns returning exactly one result may accept arguments (Originally from FSComp.txt:581)

The representation of this type is hidden by the signature. It must be given an attribute such as [<Sealed>], [<Class>] or [<Interface>] to indicate the characteristics of the type. (Originally from FSComp.txt:791)

Recursive bindings that include member specifications can only occur as a direct augmentation of a type (Originally from FSComp.txt:729)

Records, union, abbreviations and struct types cannot have the 'AllowNullLiteral' attribute (Originally from FSComp.txt:787)

This record contains fields from inconsistent types (Originally from FSComp.txt:516)

The 'rec' on this module is implied by an outer 'rec' declaration and is being ignored (Originally from FSComp.txt:1391)

A property cannot have explicit type parameters. Consider using a method instead. (Originally from FSComp.txt:531)

This property or field was not found on this custom attribute type (Originally from FSComp.txt:703)

Property '%s' is static (Originally from FSComp.txt:666)

Property '%s' is not static (Originally from FSComp.txt:663)

Property '%s' is not readable (Originally from FSComp.txt:664)

Property '%s' cannot be set because the setter is private (Originally from FSComp.txt:1533)

Property '%s' cannot be set (Originally from FSComp.txt:667)

This property cannot be set (Originally from FSComp.txt:702)

The types System.ValueType, System.Enum, System.Delegate, System.MulticastDelegate and System.Array cannot be used as super types in an object expression or class (Originally from FSComp.txt:631)

You can remove this `nonNull` assertion. (Originally from FSComp.txt:1547)

You can create 'ValueSome value' directly instead of 'ofObj', or consider not using a voption for this value. (Originally from FSComp.txt:1544)

You can create 'Some value' directly instead of 'ofObj', or consider not using an option for this value. (Originally from FSComp.txt:1543)

You can remove this |NonNullQuick| pattern usage. (Originally from FSComp.txt:1546)

You can remove this |Null|NonNull| pattern usage. (Originally from FSComp.txt:1545)

Value known to be without null passed to a function meant for nullables: %s (Originally from FSComp.txt:1542)

Multi-case partial active patterns are not supported. Consider using a single-case partial active pattern or a full active pattern. (Originally from FSComp.txt:1799)

The syntax '(expr1)[expr2]' is now reserved for indexing and is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction (expr1) [expr2]'. (Originally from FSComp.txt:1647)

The syntax '(expr1)[expr2]' is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If you intend indexing or slicing then you must use '(expr1).[expr2]' in argument position. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction (expr1) [expr2]'. (Originally from FSComp.txt:1650)

A parameter with attributes must also be given a name, e.g. '[<Attribute>] Name : Type' (Originally from FSComp.txt:498)

The parameter '%s' was inferred to have byref type. Parameters of byref type must be given an explicit type annotation, e.g. 'x1: byref<int>'. When used, a byref parameter is implicitly dereferenced. (Originally from FSComp.txt:1092)

You must explicitly declare either all or no type parameters when overriding a generic abstract method (Originally from FSComp.txt:526)

Accessibility modifiers are not permitted on overrides or interface implementations (Originally from FSComp.txt:794)

This override takes a tuple instead of multiple arguments. Try to add an additional layer of parentheses at the method definition (e.g. 'member _.Foo((x, y))'), or remove parentheses at the abstract method declaration (e.g. 'abstract member Foo: 'a * 'b -> 'c'). (Originally from FSComp.txt:1765)

This override takes a different number of arguments to the corresponding abstract member. The following abstract members were found:%s (Originally from FSComp.txt:714)

One or more of the overloads of this method has curried arguments. Consider redesigning these members to take arguments in tupled form. (Originally from FSComp.txt:675)

The syntax 'expr1[expr2]' is now reserved for indexing and is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction expr1 [expr2]'. (Originally from FSComp.txt:1649)

The syntax 'expr1[expr2]' is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If you intend indexing or slicing then you must use 'expr1.[expr2]' in argument position. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction expr1 [expr2]'. (Originally from FSComp.txt:1652)

Optional arguments cannot be used in custom attributes (Originally from FSComp.txt:701)

Optional arguments are only permitted on type members (Originally from FSComp.txt:577)

Optional arguments must come at the end of the argument list, after any non-optional arguments (Originally from FSComp.txt:1117)

'%s' must be followed by 'in'. Usage: %s. (Originally from FSComp.txt:1352)

Incorrect syntax for '%s'. Usage: %s. (Originally from FSComp.txt:1280)

The operator '%s' does not accept the use of 'into' (Originally from FSComp.txt:1314)

This declaration opens the namespace or module '%s' through a partially qualified path. Adjust this code to use the full path of the namespace. This change will make your code more robust as new constructs are added to the F# and CLI libraries. (Originally from FSComp.txt:749)

In a recursive declaration group, 'open' declarations must come first in each module (Originally from FSComp.txt:1392)

Only types representing units-of-measure may be given the 'Measure' attribute (Originally from FSComp.txt:793)

Only structs and classes without primary constructors may be given the 'StructLayout' attribute (Originally from FSComp.txt:790)

Only simple variable patterns can be bound in 'let rec' constructs (Originally from FSComp.txt:730)

Only simple bindings of the form 'id = expr' can be used in construction expressions (Originally from FSComp.txt:637)

Mutable 'let' bindings can't be recursive or defined in recursive modules or namespaces (Originally from FSComp.txt:731)

Only functions may be marked 'inline' (Originally from FSComp.txt:691)

Only classes may be given the 'AbstractClass' attribute (Originally from FSComp.txt:792)

Objects must be initialized by an object construction expression that calls an inherited object constructor and assigns a value to each field (Originally from FSComp.txt:638)

The operator 'expr.[idx]' has been used on an object of indeterminate type based on information prior to this program point. Consider adding further type constraints (Originally from FSComp.txt:611)

Only overrides of abstract and virtual members may be specified in object expressions (Originally from FSComp.txt:625)

This form of object expression is not used in F#. Use 'member this.MemberName ... = ...' to define member implementations in object expressions. (Originally from FSComp.txt:541)

Calls to object constructors on type parameters cannot be given arguments (Originally from FSComp.txt:613)

Interfaces cannot contain definitions of object constructors (Originally from FSComp.txt:723)

An object constructor requires an argument (Originally from FSComp.txt:536)

Object construction expressions (i.e. record expressions with inheritance specifications) may only be used to implement constructors in object model types. Use 'new ObjectType(args)' to construct instances of object model types outside of constructors (Originally from FSComp.txt:648)

Object construction expressions may only be used to implement constructors in class types (Originally from FSComp.txt:636)

This numeric literal requires that a module '%s' defining functions FromZero, FromOne, FromInt32, FromInt64 and FromString be in scope (Originally from FSComp.txt:644)

The 'nullness checking' language feature is not enabled. This use of a nullness checking construct will be ignored. (Originally from FSComp.txt:1552)

With nullness checking enabled, overrides of .ToString() method must return a non-nullable string. You can handle potential nulls via the built-in string function. (Originally from FSComp.txt:1548)

This is not a valid name for an enumeration case (Originally from FSComp.txt:604)

This code is not sufficiently generic. The type variable %s could not be generalized because it would escape its scope. (Originally from FSComp.txt:530)

The value '%s' is not a function and does not support index notation. (Originally from FSComp.txt:1636)

This expression is not a function and does not support index notation. (Originally from FSComp.txt:1637)

Not an exception (Originally from FSComp.txt:777)

This value supports indexing, e.g. '%s.[index]'. The syntax '%s[index]' requires /langversion:preview. See https://aka.ms/fsharp-index-notation. (Originally from FSComp.txt:1634)

This expression supports indexing, e.g. 'expr.[index]'. The syntax 'expr[index]' requires /langversion:preview. See https://aka.ms/fsharp-index-notation. (Originally from FSComp.txt:1635)

Non-zero constants cannot have generic units. For generic zero, write 0.0<_>. (Originally from FSComp.txt:492)

The generic member '%s' has been used at a non-uniform instantiation prior to this program point. Consider reordering the members so this member occurs first. Alternatively, specify the full type of the member explicitly, including argument types, return type and any additional generic parameters and constraints. (Originally from FSComp.txt:1093)

This 'let' definition may not be used in a query. Only simple value definitions may be used in queries. (Originally from FSComp.txt:1330)

This value is not a literal and cannot be used in a pattern (Originally from FSComp.txt:549)

'while' expressions may not be used in queries (Originally from FSComp.txt:1323)

'try/finally' expressions may not be used in queries (Originally from FSComp.txt:1324)

No static abstract property was found that corresponds to this override (Originally from FSComp.txt:1777)

No static abstract member was found that corresponds to this override (Originally from FSComp.txt:1776)

No abstract property was found that corresponds to this override (Originally from FSComp.txt:717)

No abstract or interface member was found that corresponds to this override (Originally from FSComp.txt:713)

Interface implementations cannot be given on construction expressions (Originally from FSComp.txt:635)

In queries, use the form 'for x in n .. m do ...' for ranging over integers (Originally from FSComp.txt:1322)

The struct, record or union type '%s' does not support structural equality because the type '%s' does not satisfy the 'equality' constraint. Consider adding the 'NoEquality' attribute to the type '%s' to clarify that the type does not support structural equality (Originally from FSComp.txt:1074)

The struct, record or union type '%s' does not support structural equality because the type parameter %s does not satisfy the 'equality' constraint. Consider adding the 'NoEquality' attribute to the type '%s' to clarify that the type does not support structural equality (Originally from FSComp.txt:1073)

Using methods with 'NoEagerConstraintApplicationAttribute' requires /langversion:6.0 or later (Originally from FSComp.txt:1701)

The struct, record or union type '%s' is not structurally comparable because the type '%s' does not satisfy the 'comparison' constraint. Consider adding the 'NoComparison' attribute to the type '%s' to clarify that the type is not comparable (Originally from FSComp.txt:1072)

The struct, record or union type '%s' is not structurally comparable because the type parameter %s does not satisfy the 'comparison' constraint. Consider adding the 'NoComparison' attribute to the type '%s' to clarify that the type is not comparable (Originally from FSComp.txt:1071)

No arguments may be given when constructing a record value (Originally from FSComp.txt:634)

The member '%s' does not correspond to any abstract or virtual method available to override or implement. (Originally from FSComp.txt:626)

'new' may only be used with object constructors (Originally from FSComp.txt:642)

'new' must be used with a named type (Originally from FSComp.txt:632)

This new member hides the abstract member '%s' once tuples, functions, units of measure and/or provided types are erased. Rename the member or use 'override' instead. (Originally from FSComp.txt:721)

This new member hides the abstract member '%s'. Rename the member or use 'override' instead. (Originally from FSComp.txt:720)

'new' cannot be used on interface types. Consider using an object expression '{ new ... with ... }' instead. (Originally from FSComp.txt:617)

Namespaces cannot contain values. Consider using a module to hold your value declarations. (Originally from FSComp.txt:41)

Namespaces cannot contain extension members except in the same file and namespace declaration group where the type is defined. Consider using a module to hold declarations of extension members. (Originally from FSComp.txt:501)

'%s' may only be used with named types (Originally from FSComp.txt:615)

Named arguments cannot be given to member trait calls (Originally from FSComp.txt:603)

The named argument '%s' did not match any argument or mutable property (Originally from FSComp.txt:674)

%s is an active pattern and cannot be treated as a discriminated union case with named fields. (Originally from FSComp.txt:1401)

Name '%s' not bound in pattern context (Originally from FSComp.txt:578)

Named arguments must appear after all other arguments (Originally from FSComp.txt:551)

Mutable function values should be written 'let mutable f = (fun args -> ...)' (Originally from FSComp.txt:690)

Mutable values cannot have generic parameters (Originally from FSComp.txt:689)

Mutable values cannot be marked 'inline' (Originally from FSComp.txt:688)

Multiple visibility attributes have been specified for this identifier. 'let' bindings in classes are always private, as are any 'let' bindings inside expressions. (Originally from FSComp.txt:503)

Multiple visibility attributes have been specified for this identifier (Originally from FSComp.txt:502)

Multiple type matches were found:\n%s\nThe type '%s' was used. Due to the overlapping field names\n%s\nconsider using type annotations or change the order of open statements. (Originally from FSComp.txt:1756)

The field '%s' appears multiple times in this record expression or pattern (Originally from FSComp.txt:528)

This declaration opens the module '%s', which is marked as 'RequireQualifiedAccess'. Adjust your code to use qualified references to the elements of the module instead, e.g. 'List.map' instead of 'map'. This change will ensure that your code is robust as new constructs are added to libraries. (Originally from FSComp.txt:748)

The path '%s' is a namespace. A module abbreviation may not abbreviate a namespace. (Originally from FSComp.txt:821)

In a recursive declaration group, module abbreviations must come after all 'open' declarations and before other declarations (Originally from FSComp.txt:1393)

The following required properties have to be initialized:%s (Originally from FSComp.txt:1732)

A custom query operation for '%s' is required but not specified (Originally from FSComp.txt:1250)

Method overrides and interface implementations are not permitted here (Originally from FSComp.txt:712)

Method '%s' is not accessible from this code location (Originally from FSComp.txt:489)

Members that extend interface, delegate or enum types must be placed in a module separate to the definition of the type. This module must either have the AutoOpen attribute or be opened explicitly by client code to bring the extension members into scope. (Originally from FSComp.txt:813)

The member '%s' is used in an invalid way. A use of '%s' has been inferred prior to the definition of '%s', which is an invalid forward reference. (Originally from FSComp.txt:823)

Interfaces cannot contain definitions of member overrides (Originally from FSComp.txt:724)

Extension members cannot provide operator overloads. Consider defining the operator as part of the type definition instead. (Originally from FSComp.txt:1119)

This member is not permitted in an interface implementation (Originally from FSComp.txt:765)

SynMemberKind.PropertyGetSet only expected in parse trees (Originally from FSComp.txt:500)

This member is not sufficiently generic (Originally from FSComp.txt:732)

The type %s contains the member '%s' but it is not a virtual or abstract method that is available to override or implement. (Originally from FSComp.txt:627)

A member and a local class binding both have the name '%s' (Originally from FSComp.txt:759)

Measure definitions cannot have type parameters (Originally from FSComp.txt:782)

Measure declarations may have only static members: constructors are not available (Originally from FSComp.txt:758)

Measure declarations may have only static members (Originally from FSComp.txt:754)

'match' expressions may not be used in queries (Originally from FSComp.txt:1349)

This lookup cannot be used here (Originally from FSComp.txt:665)

Local class bindings cannot be marked inline. Consider lifting the definition out of the class or else do not mark it as inline. (Originally from FSComp.txt:750)

Cannot assign '%s' to a value marked literal (Originally from FSComp.txt:1641)

Cannot assign a value to another value marked literal (Originally from FSComp.txt:1642)

This literal pattern does not take arguments (Originally from FSComp.txt:1381)

Literal values cannot have generic parameters (Originally from FSComp.txt:695)

A literal value cannot be marked 'mutable' (Originally from FSComp.txt:693)

A literal value cannot be marked 'inline' (Originally from FSComp.txt:694)

A declaration may only be the [<Literal>] attribute if a constant value is also given, e.g. 'val x: int = 1' (Originally from FSComp.txt:733)

A [<Literal>] declaration cannot use an active pattern for its identifier (Originally from FSComp.txt:1692)

The syntax '[expr1][expr2]' is now reserved for indexing and is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction [expr1] [expr2]'. (Originally from FSComp.txt:1648)

The syntax '[expr1][expr2]' is ambiguous when used as an argument. See https://aka.ms/fsharp-index-notation. If you intend indexing or slicing then you must use '(expr1).[expr2]' in argument position. If calling a function with multiple curried arguments, add a space between them, e.g. 'someFunction [expr1] [expr2]'. (Originally from FSComp.txt:1651)

This list expression exceeds the maximum size for list literals. Use an array for larger literals and call Array.ToList. (Originally from FSComp.txt:601)

This definition may only be used in a type with a primary constructor. Consider adding arguments to your type definition, e.g. 'type X(args) = ...'. (Originally from FSComp.txt:819)

This code is less generic than required by its annotations because the explicit type variable '%s' could not be generalized. It was constrained to be '%s'. (Originally from FSComp.txt:520)

The kind of the type specified by its attributes does not match the kind implied by its definition (Originally from FSComp.txt:781)

In queries, '%s' must use a simple pattern (Originally from FSComp.txt:1249)

A type annotated with IsReadOnly must also be a struct. Consider adding the [<Struct>] attribute to the type. (Originally from FSComp.txt:1518)

Invalid use of a type name (Originally from FSComp.txt:659)

Invalid use of reverse index in list expression. (Originally from FSComp.txt:1643)

Invalid use of an interface type (Originally from FSComp.txt:661)

Invalid use of a delegate constructor. Use the syntax 'new Type(args)' or just 'Type(args)'. (Originally from FSComp.txt:662)

The 'UseNullAsTrueValue' attribute flag may only be used with union types that have one nullary case and at least one non-nullary case (Originally from FSComp.txt:1091)

'use' bindings must be of the form 'use <var> = <expr>' (Originally from FSComp.txt:710)

use! may not be combined with and! (Originally from FSComp.txt:1562)

'use!' bindings must be of the form 'use! <var> = <expr>' (Originally from FSComp.txt:1126)

Units-of-measure cannot be used as prefix arguments to a type. Rewrite as postfix arguments in angle brackets. (Originally from FSComp.txt:565)

Units-of-measure are only supported on float, float32, decimal, and integer types. (Originally from FSComp.txt:495)

Literal enumerations must have type int, uint, int16, uint16, int64, uint64, byte, sbyte or char (Originally from FSComp.txt:809)

Invalid type extension (Originally from FSComp.txt:779)

Type arguments cannot be specified here (Originally from FSComp.txt:580)

The number of type arguments did not match: '%d' given, '%d' expected. This may be related to a previously reported error. (Originally from FSComp.txt:1243)

The use of '[<Struct>]' on values, functions and methods is only allowed on partial active pattern definitions (Originally from FSComp.txt:1676)

Invalid signature for set member (Originally from FSComp.txt:719)

Invalid record, sequence or computation expression. Sequence expressions should be of the form 'seq { ... }' (Originally from FSComp.txt:598)

Invalid constraint. Valid constraint forms include \"'T :> ISomeInterface\" for interface constraints and \"SomeConstrainingType<'T>\" for self-constraints. See https://aka.ms/fsharp-type-constraints. (Originally from FSComp.txt:1727)

The construct '%s' may only be used in valid resumable code. (Originally from FSComp.txt:1695)

Invalid join relation in '%s'. Expected 'expr <op> expr', where <op> is =, =?, ?= or ?=?. (Originally from FSComp.txt:1307)

Invalid record construction (Originally from FSComp.txt:645)

This property has an invalid type. Properties taking multiple indexer arguments should have types of the form 'ty1 * ty2 -> ty3'. Properties returning functions should have types of the form '(ty1 -> ty2)'. (Originally from FSComp.txt:560)

This is not a valid pattern (Originally from FSComp.txt:590)

Invalid optional assignment to a property or field (Originally from FSComp.txt:679)

The '%s' operator should not normally be redefined. To define overloaded comparison semantics for a particular type, implement the 'System.IComparable' interface in the definition of that type. (Originally from FSComp.txt:508)

The '%s' operator should not normally be redefined. To define equality semantics for a type, override the 'Object.Equals' member in the definition of that type. (Originally from FSComp.txt:509)

The '%s' operator should not normally be redefined. Consider using a different operator name (Originally from FSComp.txt:510)

Invalid object, sequence or record expression (Originally from FSComp.txt:597)

Invalid object expression. Objects without overrides or interfaces should use the expression form 'new Type(args)' without braces. (Originally from FSComp.txt:596)

This is not a valid object construction expression. Explicit object constructors must either call an alternate constructor or initialize all fields of the object and specify a call to a super class constructor. (Originally from FSComp.txt:555)

Non-primitive numeric literal constants cannot be used in pattern matches because they can be mapped to multiple different types through the use of a NumericLiteral module. Consider using replacing with a variable, and use 'when <variable> = <constant>' at the end of the match clause. (Originally from FSComp.txt:579)

'new' constraints must take one argument of type 'unit' and return the constructed type (Originally from FSComp.txt:559)

Invalid namespace, module, type or union case name (Originally from FSComp.txt:740)

Invalid module name (Originally from FSComp.txt:778)

This recursive binding uses an invalid mixture of recursive forms (Originally from FSComp.txt:554)

The name '(%s)' should not be used as a member name. To define comparison semantics for a type, implement the 'System.IComparable' interface. If defining a static member for use from other CLI languages then use the name '%s' instead. (Originally from FSComp.txt:504)

The name '(%s)' should not be used as a member name. To define equality semantics for a type, override the 'Object.Equals' member. If defining a static member for use from other CLI languages then use the name '%s' instead. (Originally from FSComp.txt:505)

The name '(%s)' should not be used as a member name because it is given a standard definition in the F# library over fixed types (Originally from FSComp.txt:507)

Invalid member name. Members may not have name '.ctor' or '.cctor' (Originally from FSComp.txt:1241)

The name '(%s)' should not be used as a member name. If defining a static member for use from other CLI languages then use the name '%s' instead. (Originally from FSComp.txt:506)

Invalid member declaration. The name of the member is missing or has parentheses. (Originally from FSComp.txt:1720)

Invalid inline specification (Originally from FSComp.txt:709)

Incomplete expression or invalid use of indexer syntax (Originally from FSComp.txt:610)

The '%s' operator cannot be redefined. Consider using a different operator name (Originally from FSComp.txt:511)

Internal error. Invalid index into active pattern array (Originally from FSComp.txt:583)

This is not a valid value for an enumeration literal (Originally from FSComp.txt:743)

An 'enum' constraint must be of the form 'enum<type>' (Originally from FSComp.txt:558)

Delegate specifications must be of the form 'typ -> typ' (Originally from FSComp.txt:807)

Invalid declaration (Originally from FSComp.txt:542)

Invalid constraint: the type used for the constraint is sealed, which means the constraint could only be satisfied by at most one solution (Originally from FSComp.txt:557)

Invalid constraint (Originally from FSComp.txt:556)

This is not a valid constant expression (Originally from FSComp.txt:696)

Invalid assignment (Originally from FSComp.txt:658)

Invalid argument to parameterized pattern label (Originally from FSComp.txt:582)

Invalid alignment in interpolated string (Originally from FSComp.txt:1662)

'%s' is not a valid method name. Use a 'let' binding instead. (Originally from FSComp.txt:686)

A use of 'into' must be followed by the remainder of the computation (Originally from FSComp.txt:1313)

Mismatch in interpolated string. Interpolated strings may not use '%%' format specifiers unless each is given an expression, e.g. '%%d{1+1}' (Originally from FSComp.txt:1661)

Interfaces inherited by other interfaces should be declared using 'inherit ...' instead of 'interface ...' (Originally from FSComp.txt:1108)

Interface types cannot be sealed (Originally from FSComp.txt:806)

Interface types and delegate types cannot contain fields (Originally from FSComp.txt:801)

This instance member needs a parameter to represent the object being invoked. Make the member static or use the notation 'member x.Member(args) = ...'. (Originally from FSComp.txt:533)

The 'InlineIfLambda' attribute may only be used on parameters of inlined functions of methods whose type is a function or F# delegate type. (Originally from FSComp.txt:1718)

Init-only property '%s' cannot be set outside the initialization code. See https://aka.ms/fsharp-assigning-values-to-properties-at-initialization (Originally from FSComp.txt:668)

The inherited type is not an object model type (Originally from FSComp.txt:647)

A inheritance declaration is not permitted here (Originally from FSComp.txt:747)

This 'inherit' declaration specifies the inherited type but no arguments. Consider supplying arguments, e.g. 'inherit BaseType(args)'. (Originally from FSComp.txt:817)

This 'inherit' declaration has arguments, but is not in a type with a primary constructor. Consider adding arguments to your type definition, e.g. 'type X(args) = ...'. (Originally from FSComp.txt:818)

'inherit' cannot be used on interface types. Consider implementing the interface by using 'interface ... with ... end' instead. (Originally from FSComp.txt:616)

This is a function definition that shadows a union case. If this is what you want, ignore or suppress this warning. If you want it to be a union case deconstruction, add parentheses. (Originally from FSComp.txt:1771)

The function or member '%s' is used in a way that requires further type annotations at its definition to ensure consistency of inferred types. The inferred signature is '%s'. (Originally from FSComp.txt:1242)

The syntax 'arr.[idx]' is now revised to 'arr[idx]'. Please update your code. (Originally from FSComp.txt:1645)

Implicit product of measures following / (Originally from FSComp.txt:490)

This expression uses the implicit conversion '%s' to convert type '%s' to type '%s'. See https://aka.ms/fsharp-implicit-convs. This warning may be disabled using '#nowarn \"3391\". (Originally from FSComp.txt:1687)

This expression uses the implicit conversion '%s' to convert type '%s' to type '%s'. (Originally from FSComp.txt:1691)

The struct, record or union type '%s' implements the interface 'System.IStructuralEquatable' explicitly. Apply the 'CustomEquality' attribute to the type. (Originally from FSComp.txt:770)

The struct, record or union type '%s' implements the interface 'System.IStructuralComparable' explicitly. Apply the 'CustomComparison' attribute to the type. (Originally from FSComp.txt:515)

The struct, record or union type '%s' implements the interface 'System.IEquatable<_>' explicitly. Apply the 'CustomEquality' attribute to the type and provide a consistent implementation of the non-generic override 'System.Object.Equals(obj)'. (Originally from FSComp.txt:771)

The struct, record or union type '%s' implements the interface 'System.IComparable' explicitly. You must apply the 'CustomComparison' attribute to the type. (Originally from FSComp.txt:513)

The struct, record or union type '%s' implements the interface 'System.IComparable<_>' explicitly. You must apply the 'CustomComparison' attribute to the type, and should also provide a consistent implementation of the non-generic interface System.IComparable. (Originally from FSComp.txt:514)

Illegal syntax in type expression (Originally from FSComp.txt:572)

This is not valid literal expression. The [<Literal>] attribute will be ignored. (Originally from FSComp.txt:1367)

Illegal pattern (Originally from FSComp.txt:591)

Explicit type declarations for constructors must be of the form 'ty1 * ... * tyN -> resTy'. Parentheses may be required around 'resTy' (Originally from FSComp.txt:741)

Byref types are not allowed in an open type declaration. (Originally from FSComp.txt:1536)

A literal value cannot be given the [<ThreadStatic>] or [<ContextStatic>] attributes (Originally from FSComp.txt:692)

An if/then/else expression may not be used within queries. Consider using either an if/then expression, or use a sequence expression instead. (Originally from FSComp.txt:1270)

It is recommended that objects supporting the IDisposable interface are created using the syntax 'new Type(args)', rather than 'Type(args)' or 'Type' as a function value representing the constructor, to indicate that resources may be owned by the generated value (Originally from FSComp.txt:619)

The syntax 'expr1[expr2]' is now reserved for indexing. See https://aka.ms/fsharp-index-notation. If calling a function, add a space between the function and argument, e.g. 'someFunction [expr]'. (Originally from FSComp.txt:1646)

The syntax 'expr1[expr2]' is used for indexing. Consider adding a type annotation to enable indexing, or if calling a function add a space, e.g. 'expr1 [expr2]'. (Originally from FSComp.txt:1644)

The system type '%s' was required but no referenced system DLL contained this type (Originally from FSComp.txt:1403)

Generic types cannot be given the 'StructLayout' attribute (Originally from FSComp.txt:789)

A generic type parameter has been used in a way that constrains it to always be '%s' (Originally from FSComp.txt:522)

The provided types generated by this use of a type provider may not be used from other F# assemblies and should be marked internal or private. Consider using 'type internal TypeName = ...' or 'type private TypeName = ...'. (Originally from FSComp.txt:1356)

The generic function '%s' must be given explicit type argument(s) (Originally from FSComp.txt:544)

This function value is being used to construct a delegate type whose signature includes a byref argument. You must use an explicit lambda expression taking %d arguments. (Originally from FSComp.txt:552)

The corresponding formal argument is not optional (Originally from FSComp.txt:678)

Invalid use of 'fixed'. 'fixed' may only be used in a declaration of the form 'use x = fixed expr' where the expression is one of the following: an array, the address of an array element, a string, a byref, an inref, or a type implementing GetPinnableReference() (Originally from FSComp.txt:1398)

The field labels and expected type of this record expression or pattern do not uniquely determine a corresponding record type (Originally from FSComp.txt:527)

A field/val declaration is not permitted here (Originally from FSComp.txt:746)

This field requires a name (Originally from FSComp.txt:739)

No assignment given for field '%s' of type '%s' (Originally from FSComp.txt:623)

This field is not a literal and cannot be used in a pattern (Originally from FSComp.txt:588)

Named field '%s' is used more than once. (Originally from FSComp.txt:1364)

Named field '%s' conflicts with autogenerated name for anonymous field. (Originally from FSComp.txt:1365)

This field is readonly (Originally from FSComp.txt:550)

Field '%s' is not static (Originally from FSComp.txt:587)

This field is not mutable (Originally from FSComp.txt:605)

All record, union and struct types in FSharp.Core.dll must be explicitly labelled with 'StructuralComparison' or 'NoComparison' (Originally from FSComp.txt:1068)

Extraneous fields have been given values (Originally from FSComp.txt:624)

This list or array expression includes an element of the form 'if ... then ... else'. Parenthesize this expression to indicate it is an individual element of the list or array, to disambiguate this from a list generated using a sequence expression (Originally from FSComp.txt:599)

This expression form may only be used in sequence and computation expressions (Originally from FSComp.txt:595)

The expression form { expr with ... } may only be used with record types. To build object types use { new Type(...) with ... } (Originally from FSComp.txt:646)

The expression form 'expr then expr' may only be used as part of an explicit object constructor (Originally from FSComp.txt:602)

Expected %d expressions, got %d (Originally from FSComp.txt:593)

TcExprUndelayed: delayed (Originally from FSComp.txt:594)

Explicit type specifications cannot be used for exception constructors (Originally from FSComp.txt:772)

Explicit type parameters may only be used on module or member bindings (Originally from FSComp.txt:525)

An explicit static initializer should use the syntax 'static new(args) = expr' (Originally from FSComp.txt:538)

An explicit object constructor should use the syntax 'new(args) = expr' (Originally from FSComp.txt:539)

Expected unit-of-measure, not type (Originally from FSComp.txt:564)

Expected unit-of-measure parameter, not type parameter. Explicit unit-of-measure parameters must be marked with the [<Measure>] attribute. (Originally from FSComp.txt:561)

Expected type parameter, not unit-of-measure parameter (Originally from FSComp.txt:562)

Expected unit-of-measure type parameter must be marked with the [<Measure>] attribute. (Originally from FSComp.txt:1802)

Expected type, not unit-of-measure (Originally from FSComp.txt:563)

Expected an interface type (Originally from FSComp.txt:639)

Expected module or namespace parent %s (Originally from FSComp.txt:512)

The exception '%s' does not have a field named '%s'. (Originally from FSComp.txt:1360)

Exception abbreviations should not have argument lists (Originally from FSComp.txt:773)

Exception abbreviations must refer to existing exceptions or F# types deriving from System.Exception (Originally from FSComp.txt:775)

Event '%s' is static (Originally from FSComp.txt:672)

Event '%s' is not static (Originally from FSComp.txt:673)

Enumerations cannot have members (Originally from FSComp.txt:753)

Enumerations cannot have interface declarations (Originally from FSComp.txt:761)

The type '%s' is not a valid enumerator type , i.e. does not have a 'MoveNext()' method returning a bool, and a 'Current' property (Originally from FSComp.txt:1128)

The 'EntryPointAttribute' attribute may only be used on function definitions in modules (Originally from FSComp.txt:687)

'{ }' is not a valid expression. Records must include at least one field. Empty sequences are specified by using Seq.empty or an empty list '[]'. (Originally from FSComp.txt:649)

Copy-and-update record expressions must include at least one field. (Originally from FSComp.txt:1354)

An empty body may only be used if the computation expression builder defines a 'Zero' method. (Originally from FSComp.txt:568)

Duplicate specification of an interface (Originally from FSComp.txt:745)

Nullness warning: Downcasting from '%s' into '%s' can introduce unexpected null values. Cast to '%s|null' instead or handle the null before downcasting. (Originally from FSComp.txt:1549)

Shorthand lambda syntax is only supported for atomic expressions, such as method, property, field or indexer on the implied '_' argument. For example: 'let f = _.Length'. (Originally from FSComp.txt:1773)

The method or function '%s' should not be given explicit type argument(s) because it does not declare its type parameters explicitly (Originally from FSComp.txt:545)

'do!' cannot be used within sequence expressions (Originally from FSComp.txt:654)

DLLImport stubs cannot be inlined (Originally from FSComp.txt:517)

DLLImport bindings must be static members in a class or function definitions in a module (Originally from FSComp.txt:1122)

Application of method '%s' attempted to create a nullable type ('T | null) for '%s'. Nullness warnings won't be reported correctly for such types. (Originally from FSComp.txt:1550)

Delegate specifications must not be curried types. Use 'typ * ... * typ -> typ' for multi-argument delegates, and 'typ -> (typ -> typ)' for delegates returning function values. (Originally from FSComp.txt:808)

A delegate constructor must be passed a single function value (Originally from FSComp.txt:680)

The 'DefaultValue' attribute may only be used on 'val' declarations (Originally from FSComp.txt:684)

The default, zero-initializing constructor of a struct type may only be used if all the fields of the struct type admit default initialization (Originally from FSComp.txt:547)

A default implementation of this interface has already been added because the explicit implementation of the interface was not specified at the definition of the type (Originally from FSComp.txt:764)

This method already has a default implementation (Originally from FSComp.txt:715)

The method implemented by this default is ambiguous (Originally from FSComp.txt:716)

One or more of the declared type parameters for this type extension have a missing or wrong type constraint not matching the original type constraints on '%s' (Originally from FSComp.txt:814)

This declaration element is not permitted in an augmentation (Originally from FSComp.txt:766)

'%s' is not used correctly. Usage: %s. This is a custom operation in this query or computation expression. (Originally from FSComp.txt:1275)

'%s' is not used correctly. This is a custom operation in this query or computation expression. (Originally from FSComp.txt:1274)

A custom operation may not be used in conjunction with a non-value or recursive 'let' binding in another part of this computation expression (Originally from FSComp.txt:1256)

A custom operation may not be used in conjunction with 'use', 'try/with', 'try/finally', 'if/then/else' or 'match' operators within this computation expression (Originally from FSComp.txt:1257)

The custom operation '%s' refers to a method which is overloaded. The implementations of custom operations may not be overloaded. (Originally from FSComp.txt:1258)

The definition of the custom operator '%s' does not use a valid combination of attribute flags (Originally from FSComp.txt:1315)

'%s' is used with an incorrect number of arguments. This is a custom operation in this query or computation expression. Expected %d argument(s), but given %d. (Originally from FSComp.txt:1282)

A custom attribute must invoke an object constructor (Originally from FSComp.txt:706)

A custom attribute must be a reference type (Originally from FSComp.txt:704)

The number of args for a custom attribute does not match the expected number of args for the attribute constructor (Originally from FSComp.txt:705)

Could not find method System.Runtime.CompilerServices.OffsetToStringData in references when building 'fixed' expression. (Originally from FSComp.txt:1399)

Couldn't find Dispose on IDisposable, or it was overloaded (Originally from FSComp.txt:548)

This copy-and-update record expression changes all fields of record type '%s'. Consider using the record construction syntax instead. (Originally from FSComp.txt:1748)

The input to a copy-and-update expression that creates an anonymous record must be either an anonymous record or a record (Originally from FSComp.txt:1530)

Constructors are not permitted as extension members - they must be defined as part of the original definition of the type (Originally from FSComp.txt:1382)

Constructors cannot be defined for this type (Originally from FSComp.txt:728)

Constructors cannot be specified in exception augmentations (Originally from FSComp.txt:726)

Constructors must be applied to arguments and cannot be used as first-class values. If necessary use an anonymous function '(fun arg1 ... argN -> new Type(arg1,...,argN))'. (Originally from FSComp.txt:670)

Constructors for the type '%s' must directly or indirectly call its implicit object constructor. Use a call to the implicit object constructor instead of a record expression. (Originally from FSComp.txt:621)

This object constructor requires arguments (Originally from FSComp.txt:641)

Constructor expressions for interfaces do not take arguments (Originally from FSComp.txt:640)

The constructor does not have a field named '%s'. (Originally from FSComp.txt:1362)

A constructor cannot have explicit type parameters. Consider using a static construction method instead. (Originally from FSComp.txt:532)

This construct may only be used within sequence or computation expressions (Originally from FSComp.txt:608)

This construct may only be used within list, array and sequence expressions, e.g. expressions of the form 'seq { ... }', '[ ... ]' or '[| ... |]'. These use the syntax 'for ... in ... do ... yield...' to generate elements (Originally from FSComp.txt:606)

This construct may only be used within computation expressions. To return a value from an ordinary function simply write the expression without 'return'. (Originally from FSComp.txt:607)

This construct may only be used within computation expressions (Originally from FSComp.txt:609)

This construct is ambiguous as part of a sequence expression. Nested expressions may be written using 'let _ = (...)' and nested sequences using 'yield! seq {... }'. (Originally from FSComp.txt:653)

This construct is ambiguous as part of a computation expression. Nested expressions may be written using 'let _ = (...)' and nested computations using 'let! res = builder { ... }'. (Originally from FSComp.txt:652)

One or more of the explicit class or function type variables for this binding could not be generalized, because they were constrained to other types (Originally from FSComp.txt:521)

Attribute 'System.Diagnostics.ConditionalAttribute' is only valid on methods or attribute classes (Originally from FSComp.txt:1118)

The 'ConditionalAttribute' attribute may only be used on members (Originally from FSComp.txt:685)

Interfaces cannot contain definitions of concrete instance members. You may need to define a constructor on your type to indicate that the type is a class. (Originally from FSComp.txt:725)

The 'CompiledName' attribute cannot be used with this language element (Originally from FSComp.txt:614)

Cannot partially apply the extension method '%s' because the first parameter is a byref type. (Originally from FSComp.txt:1526)

Cannot override inherited member '%s' because it is sealed (Originally from FSComp.txt:1244)

Cannot inherit from a variable type (Originally from FSComp.txt:612)

Cannot inherit a sealed type (Originally from FSComp.txt:803)

Cannot inherit from interface type. Use interface ... with instead. (Originally from FSComp.txt:804)

Cannot inherit from erased provided type (Originally from FSComp.txt:1239)

Cannot create an extension of a sealed type (Originally from FSComp.txt:633)

Cannot call the byref extension method '%s. 'this' parameter requires the value to be mutable or a non-readonly byref type. (Originally from FSComp.txt:1524)

Cannot call an abstract base member: '%s' (Originally from FSComp.txt:1095)

'%s' must be applied to an argument of type '%s', but has been applied to an argument of type '%s' (Originally from FSComp.txt:1137)

'%s' can only be applied to optional arguments (Originally from FSComp.txt:1138)

Byref types are not allowed to have optional type extensions. (Originally from FSComp.txt:1525)

A byref pointer returned by a function or method is implicitly dereferenced as of F# 4.5. To acquire the return value as a pointer, use the address-of operator, e.g. '&f(x)' or '&obj.Method(arg1, arg2)'. (Originally from FSComp.txt:1513)

A type annotated with IsByRefLike must also be a struct. Consider adding the [<Struct>] attribute to the type. (Originally from FSComp.txt:1514)

This expression uses a built-in implicit conversion to convert type '%s' to type '%s'. See https://aka.ms/fsharp-implicit-convs. (Originally from FSComp.txt:1679)

A binding cannot be marked both 'use' and 'rec' (Originally from FSComp.txt:681)

'let!', 'use!' and 'do!' expressions may not be used in queries (Originally from FSComp.txt:1326)

'%s' must be followed by a variable name. Usage: %s. (Originally from FSComp.txt:1279)

'%s' must come after a 'for' selection clause and be followed by the rest of the query. Syntax: ... %s ... (Originally from FSComp.txt:1281)

'member val' definitions are only permitted in types with a primary constructor. Consider adding arguments to your type definition, e.g. 'type X(args) = ...'. (Originally from FSComp.txt:1317)

Attributes cannot be applied to type extensions. (Originally from FSComp.txt:1531)

The attributes of this type specify multiple kinds for the type (Originally from FSComp.txt:780)

Attributes are not allowed within patterns (Originally from FSComp.txt:543)

Attributes are not permitted on 'let' bindings in expressions (Originally from FSComp.txt:683)

This attribute is not valid for use on union cases with fields. (Originally from FSComp.txt:1815)

This attribute is not valid for use on this language element. Assembly attributes should be attached to a 'do ()' declaration, if necessary within an F# module. (Originally from FSComp.txt:700)

Attribute expressions must be calls to object constructors (Originally from FSComp.txt:707)

The attribute 'AutoOpen(\"%s\")' in the assembly '%s' did not refer to a valid module or namespace in that assembly and has been ignored (Originally from FSComp.txt:824)

The attribute '%s' appears in both the implementation and the signature, but the attribute arguments differ. Only the attribute from the signature will be included in the compiled code. (Originally from FSComp.txt:1094)

At least one override did not correctly implement its corresponding abstract member (Originally from FSComp.txt:643)

The member '%s' does not accept the correct number of arguments. One overload accepts %d arguments, but %d were given. The required signature is '%s'.%s (Originally from FSComp.txt:629)

The member '%s' does not accept the correct number of arguments. %d argument(s) are expected, but %d were given. The required signature is '%s'.%s (Originally from FSComp.txt:628)

Anonymous unit-of-measure cannot be nested inside another unit-of-measure expression (Originally from FSComp.txt:573)

Anonymous type variables are not permitted in this declaration (Originally from FSComp.txt:574)

The field '%s' appears multiple times in this anonymous record type. (Originally from FSComp.txt:1722)

This anonymous record has an extra field. Remove field '%s'. (Originally from FSComp.txt:1412)

This anonymous record is missing field '%s'. (Originally from FSComp.txt:1410)

This anonymous record should have field '%s' but here has field '%s'. (Originally from FSComp.txt:1414)

This anonymous record should have field '%s' but here has fields %s. (Originally from FSComp.txt:1415)

This anonymous record has extra fields. Remove fields %s. (Originally from FSComp.txt:1413)

This anonymous record is missing fields %s. (Originally from FSComp.txt:1411)

This anonymous record should have fields %s; but here has field '%s'. (Originally from FSComp.txt:1416)

This anonymous record should have fields %s; but here has fields %s. (Originally from FSComp.txt:1417)

Invalid Anonymous Record type declaration. (Originally from FSComp.txt:1407)

This anonymous record does not exactly match the expected shape. Add the missing fields %s and remove the extra fields %s. (Originally from FSComp.txt:1409)

The field '%s' appears multiple times in this record expression. (Originally from FSComp.txt:1721)

Two anonymous record types are from different assemblies '%s' and '%s' (Originally from FSComp.txt:1408)

This feature is not supported in this version of F#. You may need to add /langversion:preview to use this feature. (Originally from FSComp.txt:1561)

This expression has type '%s' and is only made compatible with type '%s' through an ambiguous implicit conversion. Consider using an explicit call to 'op_Implicit'. The applicable implicit conversions are:%s (Originally from FSComp.txt:1677)

The meaning of _ is ambiguous here. It cannot be used for a discarded variable and a function shorthand in the same scope. (Originally from FSComp.txt:1760)

Types with the 'AllowNullLiteral' attribute may only inherit from or implement types which also allow the use of the null literal (Originally from FSComp.txt:788)

All implemented interfaces should be declared on the initial declaration of the type (Originally from FSComp.txt:763)

Active patterns do not have fields. This syntax is invalid. (Originally from FSComp.txt:1361)

This active pattern expects exactly one pattern argument, e.g., '%s pat'. (Originally from FSComp.txt:1787)

This active pattern does not expect any arguments, i.e., it should be used like '%s' instead of '%s x'. (Originally from FSComp.txt:1786)

This active pattern expects %d expression argument(s) and a pattern argument, e.g., '%s%s pat'. (Originally from FSComp.txt:1789)

This active pattern expects %d expression argument(s), e.g., '%s%s'. (Originally from FSComp.txt:1788)

Access modifiers cannot be applied to an SRTP constraint. (Originally from FSComp.txt:1796)

Instances of this type cannot be created since it has been marked abstract or not all methods have been given implementations. Consider using an object expression '{ new ... with ... }' instead. (Originally from FSComp.txt:618)

This property overrides or implements an abstract property but the abstract property doesn't have a corresponding %s (Originally from FSComp.txt:718)

Abstract members are not permitted in an augmentation - they must be defined as part of the type itself (Originally from FSComp.txt:711)

Abbreviations for Common IL exception types must have a matching object constructor (Originally from FSComp.txt:776)

Abbreviations for Common IL exceptions cannot take arguments (Originally from FSComp.txt:774)

Abbreviated types cannot be given the 'Sealed' attribute (Originally from FSComp.txt:802)

F# supports array ranks between 1 and 32. The value %d is not allowed. (Originally from FSComp.txt:1321)

A value must be mutable in order to mutate the contents or take the address of a value type, e.g. 'let mutable x = ...' (Originally from FSComp.txt:94)

A value defined in a module must be mutable in order to take its address, e.g. 'let mutable x = ...' (Originally from FSComp.txt:1517)

The value has been copied to ensure the original is not mutated by this operation or because the copy is implicit when returning a struct from a member and another member is then accessed (Originally from FSComp.txt:96)

This value does not have a valid property setter type (Originally from FSComp.txt:90)

Unexpected decode of InternalsVisibleToAttribute (Originally from FSComp.txt:101)

Unexpected decode of InterfaceDataVersionAttribute (Originally from FSComp.txt:102)

Unexpected decode of AutoOpenAttribute (Originally from FSComp.txt:100)

Unexpected use of a byref-typed variable (Originally from FSComp.txt:93)

The module/namespace '%s' from compilation unit '%s' did not contain the val '%s' (Originally from FSComp.txt:1089)

The module/namespace '%s' from compilation unit '%s' did not contain the namespace, module or type '%s' (Originally from FSComp.txt:1090)

The module/namespace '%s' from compilation unit '%s' did not contain the module/namespace '%s' (Originally from FSComp.txt:1088)

The type/module '%s' is not a concrete module or type (Originally from FSComp.txt:82)

The type '%s' has an inline assembly code representation (Originally from FSComp.txt:83)

Two modules named '%s' occur in two parts of this assembly (Originally from FSComp.txt:86)

Recursively defined values cannot appear directly as part of the construction of a tuple value within a recursive binding (Originally from FSComp.txt:97)

Recursive values cannot be directly assigned to the non-mutable field '%s' of the type '%s' within a recursive binding. Consider using a mutable field instead. (Originally from FSComp.txt:99)

Recursive values cannot appear directly as a construction of the type '%s' within a recursive binding. This feature has been removed from the F# language. Consider using a record instead. (Originally from FSComp.txt:98)

This is not a valid constant expression or custom attribute value (Originally from FSComp.txt:104)

A namespace and a module named '%s' both occur in two parts of this assembly (Originally from FSComp.txt:85)

Invalid mutation of a constant expression. Consider copying the expression to a mutable local, e.g. 'let mutable x = ...'. (Originally from FSComp.txt:95)

Invalid member signature encountered because of an earlier error (Originally from FSComp.txt:89)

Invalid form for a property setter. At least one argument is required. (Originally from FSComp.txt:92)

Invalid form for a property getter. At least one '()' argument is required when using the explicit syntax. (Originally from FSComp.txt:91)

This operation accesses a mutable top-level value defined in another assembly in an unsupported way. The value cannot be accessed through its address. Consider copying the expression to a mutable local, e.g. 'let mutable x = ...', and if necessary assigning the value back after the completion of the operation (Originally from FSComp.txt:1084)

Two type definitions named '%s' occur in namespace '%s' in two parts of this assembly (Originally from FSComp.txt:87)

This literal expression or attribute argument results in an arithmetic overflow. (Originally from FSComp.txt:1366)

A module and a type definition named '%s' occur in namespace '%s' in two parts of this assembly (Originally from FSComp.txt:88)

Cannot take the address of the value returned from the expression. Assign the returned value to a let-bound value before taking the address. (Originally from FSComp.txt:1523)

Active patterns cannot return more than 7 possibilities (Originally from FSComp.txt:103)

(Suggested name) (Originally from FSComp.txt:974)

The struct or class field '%s' is not accessible from this code location (Originally from FSComp.txt:983)

Source file is too large to embed in a portable PDB (Originally from FSComp.txt:877)

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

The .NET SDK for this script could not be determined. If the script is in a directory using a 'global.json' then ensure the relevant .NET SDK is installed. Unexpected error '%s'. (Originally from FSComp.txt:1674)

The .NET SDK for this script could not be determined. dotnet.exe could not be found ensure a .NET SDK is installed. (Originally from FSComp.txt:1675)

The .NET SDK for this script could not be determined. If the script is in a directory using a 'global.json' then ensure the relevant .NET SDK is installed. The output from '%s --version' in the directory '%s' was: '%s' and the exit code was '%d'. (Originally from FSComp.txt:1673)

Consider using 'return!' instead of 'return'. (Originally from FSComp.txt:37)

This state machine is not statically compilable and no alternative is available. %s. Use an 'if __useResumableCode then <state-machine> else <alternative>' to give an alternative. (Originally from FSComp.txt:1703)

This state machine is not statically compilable. %s. An alternative dynamic implementation will be used, which may be slower. Consider adjusting your code to ensure this state machine is statically compilable, or else suppress this warning. (Originally from FSComp.txt:1702)

The state machine has an unexpected form (Originally from FSComp.txt:1715)

The resumable code value(s) '%s' does not have a definition (Originally from FSComp.txt:1713)

A resumable code invocation at '%s' could not be reduced (Originally from FSComp.txt:1706)

A delegate or function producing resumable code in a state machine has type parameters (Originally from FSComp.txt:1714)

A try/finally may not contain resumption points (Originally from FSComp.txt:1710)

The 'with' block of a try/with may not contain resumption points (Originally from FSComp.txt:1711)

A 'let rec' occurred in the resumable code specification (Originally from FSComp.txt:1707)

A fast integer for loop may not contain resumption points (Originally from FSComp.txt:1712)

A target label for __resumeAt was not statically determined. A __resumeAt with a non-static target label may only appear at the start of a resumable code method (Originally from FSComp.txt:1709)

A constrained generic construct occurred in the resumable code specification (Originally from FSComp.txt:1708)

Replace with '%s' (Originally from FSComp.txt:20)

Recursive class hierarchy in type '%s' (Originally from FSComp.txt:975)

A ReadOnly attribute has been applied to a struct type with a mutable field. (Originally from FSComp.txt:1512)

Unexpected token '%s' in preprocessor expression (Originally from FSComp.txt:1373)

Missing token '%s' in preprocessor expression (Originally from FSComp.txt:1375)

Incomplete preprocessor expression (Originally from FSComp.txt:1374)

Unexpected character '%s' in preprocessor expression (Originally from FSComp.txt:1372)

Expected single line comment or end of line (Originally from FSComp.txt:1064)

#i is not supported by the registered PackageManagers (Originally from FSComp.txt:1559)

An error occurred while reading the F# metadata of assembly '%s'. A reserved construct was utilized. You may need to upgrade your F# compiler or use an earlier version of the assembly that doesn't make use of a specific construct. (Originally from FSComp.txt:1506)

An error occurred while reading the F# metadata node at position %d in table '%s' of assembly '%s'. The node had no matching declaration. Please report this warning. You may need to recompile the F# assembly you are using. (Originally from FSComp.txt:1376)

Newly added pickle state cannot be used in FSharp.Core, since it must be working in older compilers+tooling as well. The time window is at least 3 years after feature introduction. Violation: %s . Context: \n %s (Originally from FSComp.txt:1764)

Error reading/writing metadata for the F# compiled DLL '%s'. Was the DLL compiled with an earlier version of the F# compiler? (error: '%s'). (Originally from FSComp.txt:81)

A pattern match guard must be of type 'bool', but this 'when' expression is of type '%s'. (Originally from FSComp.txt:33)

Problem with filename '%s': Illegal characters in path. (Originally from FSComp.txt:1182)

Partial active patterns may only generate one result (Originally from FSComp.txt:993)

Missing variable '%s' (Originally from FSComp.txt:992)

Missing 'do' in 'while' expression. Expected 'while <expr> do <expr>'. (Originally from FSComp.txt:1305)

Accessibility modifiers are not permitted on an 'inherits' declaration (Originally from FSComp.txt:437)

Accessibility modifiers should come immediately prior to the identifier naming a construct (Originally from FSComp.txt:408)

'use' bindings are not permitted in modules and are treated as 'let' bindings (Originally from FSComp.txt:401)

'use' bindings are not permitted in primary constructors (Originally from FSComp.txt:400)

Unmatched 'with' or badly formatted 'with' block (Originally from FSComp.txt:424)

Incomplete value definition. If this is in an expression, the body of the expression must be indented to the same column as the 'use!' keyword. (Originally from FSComp.txt:1303)

Incomplete value definition. If this is in an expression, the body of the expression must be indented to the same column as the 'use' keyword. (Originally from FSComp.txt:1304)

Unmatched '(' (Originally from FSComp.txt:450)

Incomplete value definition. If this is in an expression, the body of the expression must be indented to the same column as the 'let!' keyword. (Originally from FSComp.txt:1302)

Incomplete value or function definition. If this is in an expression, the body of the expression must be indented to the same column as the 'let' keyword. (Originally from FSComp.txt:1301)

Unmatched '[<'. Expected closing '>]' (Originally from FSComp.txt:1285)

Unmatched 'class', 'interface' or 'struct' (Originally from FSComp.txt:422)

Unmatched '[|' (Originally from FSComp.txt:466)

Unmatched '[' (Originally from FSComp.txt:461)

Unmatched '{|' (Originally from FSComp.txt:468)

Unmatched '{' (Originally from FSComp.txt:467)

Unmatched 'begin' or 'struct' (Originally from FSComp.txt:415)

Unmatched 'begin' (Originally from FSComp.txt:427)

Unmatched '%s' (Originally from FSComp.txt:465)

Accessibility modifiers are not permitted on union cases. Use 'type U = internal ...' or 'type U = private ...' to give an accessibility to the whole representation. (Originally from FSComp.txt:445)

Unexpected token '%s' or incomplete expression (Originally from FSComp.txt:1341)

Accessibility modifiers are not permitted here, but '%s' was given. (Originally from FSComp.txt:406)

Unexpected symbol '=' in expression. Did you intend to use 'for x in y .. z do' instead? (Originally from FSComp.txt:1406)

Unexpected symbol '.' in member definition. Expected 'with', '=' or other token. (Originally from FSComp.txt:40)

A semicolon is not expected at this point (Originally from FSComp.txt:404)

Unexpected quotation operator '<@' in type definition. If you intend to pass a verbatim string as a static argument to a type provider, put a space between the '<' and '@' characters. (Originally from FSComp.txt:1134)

Unexpected infix operator in unit-of-measure expression. Legal operators are '*', '/' and '^'. (Originally from FSComp.txt:476)

Unexpected integer literal in unit-of-measure expression (Originally from FSComp.txt:477)

Unexpected infix operator in type expression (Originally from FSComp.txt:473)

Unexpected identifier: '%s' (Originally from FSComp.txt:444)

Unexpected end of input in 'match' or 'try' expression (Originally from FSComp.txt:1290)

Unexpected end of input in 'while' expression. Expected 'while <expr> do <expr>'. (Originally from FSComp.txt:1288)

Unexpected end of input in type signature (Originally from FSComp.txt:1295)

Unexpected end of input in type definition (Originally from FSComp.txt:1296)

Unexpected end of input in type arguments (Originally from FSComp.txt:1294)

Unexpected end of input in 'try' expression. Expected 'try <expr> with <rules>' or 'try <expr> finally <expr>'. (Originally from FSComp.txt:1287)

Unexpected end of input in 'then' branch of conditional expression. Expected 'if <expr> then <expr>' or 'if <expr> then <expr> else <expr>'. (Originally from FSComp.txt:1291)

Unexpected end of input in object members (Originally from FSComp.txt:1297)

Unexpected end of input in 'match' expression. Expected 'match <expr> with | <pat> -> <expr> | <pat> -> <expr> ...'. (Originally from FSComp.txt:1286)

Unexpected end of input in body of lambda expression. Expected 'fun <pat> ... <pat> -> <expr>'. (Originally from FSComp.txt:1293)

Unexpected end of input in 'for' expression. Expected 'for <pat> in <expr> do <expr>'. (Originally from FSComp.txt:1289)

Unexpected end of input in expression (Originally from FSComp.txt:1299)

Unexpected end of input in 'else' branch of conditional expression. Expected 'if <expr> then <expr>' or 'if <expr> then <expr> else <expr>'. (Originally from FSComp.txt:1292)

Unexpected end of input in 'else if' or 'elif' branch of conditional expression. Expected 'elif <expr> then <expr>' or 'else if <expr> then <expr>'. (Originally from FSComp.txt:1750)

Unexpected end of input in value, function or member definition (Originally from FSComp.txt:1298)

Unexpected end of input (Originally from FSComp.txt:405)

Unexpected empty type moduleDefn list (Originally from FSComp.txt:417)

'_' cannot be used as field name (Originally from FSComp.txt:1355)

Unclosed block (Originally from FSComp.txt:414)

Type name cannot be empty. (Originally from FSComp.txt:1343)

Type annotations on property getters and setters must be given after the 'get()' or 'set(v)', e.g. 'with get() : string = ...' (Originally from FSComp.txt:430)

Accessibility modifiers are not permitted in this position for type abbreviations (Originally from FSComp.txt:440)

The syntax 'module ... = struct .. end' is not used in F# code. Consider using 'module ... = begin .. end' (Originally from FSComp.txt:486)

The syntax 'module ... : sig .. end' is not used in F# code. Consider using 'module ... = begin .. end' (Originally from FSComp.txt:487)

Syntax error in labelled type argument (Originally from FSComp.txt:472)

Syntax error (Originally from FSComp.txt:420)

Successive patterns should be separated by spaces or tupled (Originally from FSComp.txt:451)

Successive arguments should be separated by spaces or tupled, and arguments involving function or method applications should be parenthesized (Originally from FSComp.txt:460)

Incomplete declaration of a static construct. Use 'static let','static do','static member' or 'static val' for declaration. (Originally from FSComp.txt:1780)

A setter property may have at most two argument groups (Originally from FSComp.txt:1081)

Property setters must be defined using 'set value = ', 'set idx value = ' or 'set (idx1,...,idxN) value = ... ' (Originally from FSComp.txt:433)

Accessibility modifiers are not permitted on record fields. Use 'type R = internal ...' or 'type R = private ...' to give an accessibility to the whole representation. (Originally from FSComp.txt:448)

In F# code you may use 'expr.[expr]'. A type annotation may be required to indicate the first expression is an array (Originally from FSComp.txt:463)

Only simple patterns are allowed in primary constructors (Originally from FSComp.txt:1783)

At most one 'with' augmentation is permitted (Originally from FSComp.txt:403)

Only '#' compiler directives may occur prior to the first 'namespace' declaration (Originally from FSComp.txt:407)

Only class types may take value arguments (Originally from FSComp.txt:426)

The use of the type syntax 'int C' and 'C <int>' is not permitted here. Consider adjusting this type to be written in the form 'C<int>' (Originally from FSComp.txt:1087)

Remove spaces between the type name and type parameter, e.g. \"type C<'T>\", not type \"C <'T>\". Type parameters must be placed directly adjacent to the type name. (Originally from FSComp.txt:1085)

Remove spaces between the type name and type parameter, e.g. \"C<'T>\", not \"C <'T>\". Type parameters must be placed directly adjacent to the type name. (Originally from FSComp.txt:1086)

No matching 'in' found for this 'let' (Originally from FSComp.txt:452)

No #endif found for #if or #else (Originally from FSComp.txt:398)

No '=' symbol should follow a 'namespace' declaration (Originally from FSComp.txt:485)

This member access is ambiguous. Please use parentheses around the object creation, e.g. '(new SomeType(args)).MemberName' (Originally from FSComp.txt:1690)

Files should begin with either a namespace or module declaration, e.g. 'namespace SomeNamespace.SubNamespace' or 'module SomeNamespace.SomeModule', but not both. To define a module within a namespace use 'module SomeModule = ...' (Originally from FSComp.txt:409)

To indicate that this property can be set, use 'member val PropertyName = expr with get,set'. (Originally from FSComp.txt:1319)

Property definitions may not be declared mutable. To indicate that this property can be set, use 'member val PropertyName = expr with get,set'. (Originally from FSComp.txt:1318)

When the visibility for a property is specified, setting the visibility of the set or get method is not allowed. (Originally from FSComp.txt:432)

The syntax '(typ,...,typ) ident' is not used in F# code. Consider using 'ident<typ,...,typ>' instead (Originally from FSComp.txt:474)

A module name must be a simple name, not a path (Originally from FSComp.txt:416)

A module abbreviation must be a simple name, not a path (Originally from FSComp.txt:410)

Missing union case name (Originally from FSComp.txt:1752)

Expected type argument or static argument (Originally from FSComp.txt:1132)

Missing qualification after '.' (Originally from FSComp.txt:462)

Expecting member body (Originally from FSComp.txt:1757)

Missing keyword '%s' (Originally from FSComp.txt:1758)

Unmatched '<'. Expected closing '>' (Originally from FSComp.txt:1133)

Missing function body (Originally from FSComp.txt:471)

Mismatched quotation, beginning with '%s' (Originally from FSComp.txt:464)

Mismatched quotation operator name, beginning with '%s' (Originally from FSComp.txt:479)

This member is not permitted in an object implementation (Originally from FSComp.txt:470)

The declaration form 'let ... and ...' for non-recursive bindings is not used in F# code. Consider using a sequence of 'let' bindings (Originally from FSComp.txt:449)

Invalid use of 'rec' keyword (Originally from FSComp.txt:1395)

Invalid property getter or setter (Originally from FSComp.txt:1082)

Invalid operator definition. Prefix operator definitions must use a valid prefix operator name. (Originally from FSComp.txt:1110)

Invalid prefix operator (Originally from FSComp.txt:1109)

Invalid literal in type (Originally from FSComp.txt:475)

Invalid declaration syntax (Originally from FSComp.txt:428)

Invalid anonymous record type (Originally from FSComp.txt:1529)

Invalid anonymous record expression (Originally from FSComp.txt:1528)

Interfaces always have the same visibility as the enclosing type (Originally from FSComp.txt:434)

An integer for loop must use a simple identifier (Originally from FSComp.txt:402)

Accessibility modifiers are not permitted on inline assembly code types (Originally from FSComp.txt:443)

'inherit' declarations cannot have 'as' bindings. To access members of the base class when overriding a method, the syntax 'base.SomeMember' may be used; 'base' is a keyword. Remove this 'as' binding. (Originally from FSComp.txt:438)

An indexer property must be given at least one argument (Originally from FSComp.txt:1083)

Incomplete operator expression (example a^b) or qualified type invocation (example: ^T.Name) (Originally from FSComp.txt:484)

Incomplete character literal (example: 'Q') or qualified type invocation (example: 'T.Name) (Originally from FSComp.txt:483)

Incomplete conditional. Expected 'if <expr> then <expr>' or 'if <expr> then <expr> else <expr>'. (Originally from FSComp.txt:455)

'in' or '=' expected (Originally from FSComp.txt:458)

Neither 'member val' nor 'override val' definitions are permitted in object expressions. (Originally from FSComp.txt:1353)

Denominator must not be 0 in unit-of-measure exponent (Originally from FSComp.txt:482)

The '%s' visibility attribute is not allowed on module abbreviation. Module abbreviations are always private. (Originally from FSComp.txt:413)

The '%s' accessibility attribute is not allowed on module abbreviation. Module abbreviations are always private. (Originally from FSComp.txt:412)

Ignoring attributes on module abbreviation (Originally from FSComp.txt:411)

Identifier expected (Originally from FSComp.txt:457)

A getter property is expected to be a function, e.g. 'get() = ...' or 'get(index) = ...' (Originally from FSComp.txt:431)

A getter property may have at most one argument group (Originally from FSComp.txt:1080)

'get', 'set' or 'get,set' required (Originally from FSComp.txt:425)

'get' and/or 'set' required (Originally from FSComp.txt:429)

Missing 'do' in 'for' expression. Expected 'for <pat> in <expr> do <expr>'. (Originally from FSComp.txt:1306)

Field bindings must have the form 'id = expr;' (Originally from FSComp.txt:469)

Expecting union case field (Originally from FSComp.txt:1794)

Expecting type (Originally from FSComp.txt:1753)

Expecting record field (Originally from FSComp.txt:1781)

Expecting pattern (Originally from FSComp.txt:1733)

Expecting expression (Originally from FSComp.txt:1723)

Expected a type after this point (Originally from FSComp.txt:1284)

Expected a pattern after this point (Originally from FSComp.txt:1734)

Unexpected end of type. Expected a name after this point. (Originally from FSComp.txt:1300)

Expected an expression after this point (Originally from FSComp.txt:1283)

The block following this '%s' is unfinished. Every code block is an expression and must have a result. '%s' cannot be the final code element in a block. Consider giving this block an explicit result. (Originally from FSComp.txt:454)

Attempted to parse this as an operator name, but failed (Originally from FSComp.txt:1135)

Error in the return expression for this 'let'. Possible incorrect indentation. (Originally from FSComp.txt:453)

End of file in verbatim string embedded in comment begun at or before here (Originally from FSComp.txt:395)

End of file in verbatim string begun at or before here (Originally from FSComp.txt:392)

End of file in triple-quote string embedded in comment begun at or before here (Originally from FSComp.txt:1130)

End of file in triple-quote string begun at or before here (Originally from FSComp.txt:1129)

End of file in string embedded in comment begun at or before here (Originally from FSComp.txt:394)

End of file in string begun at or before here (Originally from FSComp.txt:391)

Incomplete interpolated verbatim string begun at or before here (Originally from FSComp.txt:1669)

Incomplete interpolated triple-quote string begun at or before here (Originally from FSComp.txt:1670)

Incomplete interpolated string expression fill begun at or before here (Originally from FSComp.txt:1667)

Incomplete interpolated string begun at or before here (Originally from FSComp.txt:1668)

End of file in IF-OCAML section begun at or before here (Originally from FSComp.txt:396)

End of file in #if section begun at or after here (Originally from FSComp.txt:390)

End of file in directive begun at or before here (Originally from FSComp.txt:397)

End of file in comment begun at or before here (Originally from FSComp.txt:393)

Accessibility modifiers are not permitted in this position for enum types (Originally from FSComp.txt:441)

Accessibility modifiers are not permitted on enumeration fields (Originally from FSComp.txt:446)

A type definition requires one or more members or other declarations. If you intend to define an empty class, struct or interface, then use 'type ... = class end', 'interface end' or 'struct end'. (Originally from FSComp.txt:423)

Invalid interpolated string. This interpolated string expression fill is empty, an expression was expected. (Originally from FSComp.txt:1671)

Accessibility modifiers are not permitted on 'do' bindings, but '%s' was given. (Originally from FSComp.txt:389)

Constraint intersection syntax may only be used with flexible types, e.g. '#IDisposable & #ISomeInterface'. (Originally from FSComp.txt:1762)

Consider using a separate record type instead (Originally from FSComp.txt:447)

Augmentations are not permitted on delegate type moduleDefns (Originally from FSComp.txt:421)

Attributes should be placed before 'val' (Originally from FSComp.txt:418)

Attributes are not permitted on 'inherit' declarations (Originally from FSComp.txt:436)

Attributes are not allowed here (Originally from FSComp.txt:439)

Attributes have been ignored in this construct (Originally from FSComp.txt:399)

Attributes are not permitted on interface implementations (Originally from FSComp.txt:419)

Cannot find code target for this attribute, possibly because the code after the attribute is incomplete. (Originally from FSComp.txt:1342)

'assert' may not be used as a first class value. Use 'assert <expr>' instead. (Originally from FSComp.txt:456)

The use of '->' in sequence and computation expressions is limited to the form 'for pat in expr -> expr'. Use the syntax 'for ... in ... do ... yield...' to generate elements in more complex sequence expressions. (Originally from FSComp.txt:459)

All enum fields must be given values (Originally from FSComp.txt:442)

Active pattern case identifiers must begin with an uppercase letter (Originally from FSComp.txt:480)

The '|' character is not permitted in active pattern case identifiers (Originally from FSComp.txt:481)

Accessibility modifiers are not allowed on this member. Abstract slots always have the same visibility as the enclosing type. (Originally from FSComp.txt:435)

Package manager key '%s' was not registered in %s. Currently registered: %s. You can provide extra path(s) by passing '--compilertool:<extensionsfolder>' to the command line. To learn more about extensions, visit: https://aka.ms/dotnetdepmanager (Originally from FSComp.txt:846)

%s (Originally from FSComp.txt:847)

The 'package management' feature requires language version 5.0 or above (Originally from FSComp.txt:1557)

Write the xmldoc of the assembly to the given file (Originally from FSComp.txt:858)

Specify a Win32 resource file (.res) (Originally from FSComp.txt:870)

Specify a Win32 manifest file (Originally from FSComp.txt:871)

Specify a Win32 icon file (.ico) (Originally from FSComp.txt:869)

Report all warnings as errors (%s by default) (Originally from FSComp.txt:891)

Report specific warnings as errors (Originally from FSComp.txt:892)

Enable specific warnings that may be off by default (Originally from FSComp.txt:895)

Set a warning level (0-5) (Originally from FSComp.txt:893)

Display compiler version banner and exit (Originally from FSComp.txt:901)

Output messages in UTF-8 encoding (Originally from FSComp.txt:906)

Enable high-entropy ASLR (%s by default) (Originally from FSComp.txt:933)

Unrecognized target '%s', expected 'exe', 'winexe', 'library' or 'module' (Originally from FSComp.txt:943)

Unrecognized value '%s' for --langversion use --langversion:? for complete list (Originally from FSComp.txt:84)

Unrecognized debug type '%s', expected 'pdbonly' or 'full' (Originally from FSComp.txt:944)

Invalid value '%s' for --interfacedata, valid value are: none, file, compress. (Originally from FSComp.txt:940)

Unrecognized platform '%s', valid values are 'x86', 'x64', 'Arm', 'Arm64', 'Itanium', 'anycpu32bitpreferred', and 'anycpu'. The default is anycpu. (Originally from FSComp.txt:949)

Invalid value '%s' for --optimizationdata, valid value are: none, file, compress. (Originally from FSComp.txt:942)

Algorithm '%s' is not supported (Originally from FSComp.txt:950)

Unknown --test argument: '%s' (Originally from FSComp.txt:948)

Perform type checking only, do not execute code (Originally from FSComp.txt:905)

Specify target framework profile of this assembly. Valid values are mscorlib, netcore or netstandard. Default - mscorlib (Originally from FSComp.txt:935)

Enable or disable tailcalls (%s by default) (Originally from FSComp.txt:883)

Supported language versions: (Originally from FSComp.txt:1573)

Specify subsystem version of this assembly (Originally from FSComp.txt:934)

Specify a strong name key file (Originally from FSComp.txt:859)

Specify a strong name key container (Originally from FSComp.txt:860)

Override indentation rules implied by the language version (%s by default) (Originally from FSComp.txt:1574)

Statically link the given assembly and all referenced DLLs that depend on this assembly. Use an assembly name e.g. mylib, not a DLL name. (Originally from FSComp.txt:913)

Statically link the F# library and all referenced DLLs that depend on it into the assembly being generated (Originally from FSComp.txt:912)

Source link information file to embed in the portable PDB file (Originally from FSComp.txt:875)

Resolve assembly references using directory-based rules rather than MSBuild resolution (Originally from FSComp.txt:916)

Include F# interface information, the default is file. Essential for distributing libraries. (Originally from FSComp.txt:939)

Print the inferred interface of the assembly to a file (Originally from FSComp.txt:865)

Short form of '%s' (Originally from FSComp.txt:917)

Specify language version such as 'latest' or 'preview'. (Originally from FSComp.txt:1572)

Response file '%s' not found in '%s' (Originally from FSComp.txt:1384)

Response file name '%s' is empty, contains invalid characters, has a drive specification without an absolute path, or is too long (Originally from FSComp.txt:1385)

Read response file for more options (Originally from FSComp.txt:902)

Embed the specified managed resource (Originally from FSComp.txt:878)

Use a resident background compilation service to improve compiler startup times. (Originally from FSComp.txt:914)

Disable implicit generation of constructs using reflection (Originally from FSComp.txt:890)

Reference an assembly (Short form: -r) (Originally from FSComp.txt:867)

Produce a reference assembly with the specified file path. (Originally from FSComp.txt:887)

Produce a reference assembly, instead of a full assembly, as the primary output (%s by default) (Originally from FSComp.txt:886)

Generate assembly with IL visibility that matches the source code visibility (%s by default) (Originally from FSComp.txt:885)

Public-sign the assembly using only the public portion of the strong name key, and mark the assembly as signed (%s by default) (Originally from FSComp.txt:857)

Problem with codepage '%d': %s (Originally from FSComp.txt:848)

Specify the preferred output language culture name (e.g. es-ES, ja-JP) (Originally from FSComp.txt:937)

Limit which platforms this code can run on: x86, x64, Arm, Arm64, Itanium, anycpu32bitpreferred, or anycpu. The default is anycpu. (Originally from FSComp.txt:862)

The pdb output file name cannot match the build output filename use --pdb:filename.pdb (Originally from FSComp.txt:876)

Name the output debug file (Originally from FSComp.txt:915)

Maps physical paths to source path names output by the compiler (Originally from FSComp.txt:888)

Enable optimizations (Short form: -O) (%s by default) (Originally from FSComp.txt:882)

Specify included optimization information, the default is file. Important for distributed libraries. (Originally from FSComp.txt:941)

Do not include the default Win32 manifest (Originally from FSComp.txt:872)

Disable specific warning messages (Originally from FSComp.txt:894)

Suppress compiler copyright message (Originally from FSComp.txt:899)

Do not reference the default CLI assemblies by default (Originally from FSComp.txt:911)

Only include optimization information essential for implementing inlined constructs. Inhibits cross-module inlining but improves binary compatibility. (Originally from FSComp.txt:863)

Don't add a resource to the generated assembly containing F#-specific metadata (Originally from FSComp.txt:864)

Don't copy FSharp.Core.dll along the produced binaries (Originally from FSComp.txt:938)

Name of the output file (Short form: -o) (Originally from FSComp.txt:851)

Ignore ML compatibility warnings (Originally from FSComp.txt:898)

Link the specified resource to this assembly where the resinfo format is <file>[,<string name>[,public|private]] (Originally from FSComp.txt:879)

Specify a directory for the include path which is used to resolve source files and assemblies (Short form: -I) (Originally from FSComp.txt:908)

Invalid warning level '%d' (Originally from FSComp.txt:945)

Invalid value '%s' for '--targetprofile', valid values are 'mscorlib', 'netcore' or 'netstandard'. (Originally from FSComp.txt:947)

Invalid version '%s' for '--subsystemversion'. The version must be 4.00 or greater. (Originally from FSComp.txt:946)

Invalid response file '%s' ( '%s' ) (Originally from FSComp.txt:1383)

Invalid reference assembly path' (Originally from FSComp.txt:1187)

Invalid use of emitting a reference assembly, do not use '--standalone or --staticlink' with '--refonly or --refout'. (Originally from FSComp.txt:1188)

Invalid path map. Mappings must be comma separated and of the format 'path=sourcePath' (Originally from FSComp.txt:1186)

The command-line option '%s' is for test purposes only (Originally from FSComp.txt:928)

- RESOURCES - (Originally from FSComp.txt:922)

- OUTPUT FILES - (Originally from FSComp.txt:920)

- MISCELLANEOUS - (Originally from FSComp.txt:925)

- LANGUAGE - (Originally from FSComp.txt:926)

- INPUT FILES - (Originally from FSComp.txt:921)

- ERRORS AND WARNINGS - (Originally from FSComp.txt:927)

- CODE GENERATION - (Originally from FSComp.txt:923)

- ADVANCED - (Originally from FSComp.txt:924)

Display this usage message (Short form: -?) (Originally from FSComp.txt:900)

Display the allowed values for language version. (Originally from FSComp.txt:1571)

Output messages with fully qualified paths (Originally from FSComp.txt:907)

Emit debug information in quotations (%s by default) (Originally from FSComp.txt:936)

Embed specific source files in the portable PDB file (Originally from FSComp.txt:874)

Embed all source files in the portable PDB file (%s by default) (Originally from FSComp.txt:873)

Produce a deterministic assembly (including module version GUID and timestamp) (%s by default) (Originally from FSComp.txt:884)

Delay-sign the assembly using only the public portion of the strong name key (%s by default) (Originally from FSComp.txt:856)

Define conditional compilation symbols (Short form: -d) (Originally from FSComp.txt:897)

Emit debug information (Short form: -g) (%s by default) (Originally from FSComp.txt:880)

Specify debugging type: full, portable, embedded, pdbonly. ('%s' is the default if no debugging type specified and enables attaching a debugger to a running program, 'portable' is a cross-platform format, 'embedded' is a cross-platform format embedded into the output file). (Originally from FSComp.txt:881)

The command-line option '%s' has been deprecated (Originally from FSComp.txt:929)

The command-line option '%s' has been deprecated. HTML document generation is now part of the F# Power Pack, via the tool FsHtmlDoc.exe. (Originally from FSComp.txt:931)

The command-line option '%s' has been deprecated. Use '%s' instead. (Originally from FSComp.txt:930)

Enable or disable cross-module optimizations (%s by default) (Originally from FSComp.txt:889)

Freely distributed under the MIT Open Source License. https://github.com/Microsoft/visualfsharp/blob/master/License.txt (Originally from FSComp.txt:850)

Copyright (c) Microsoft Corporation. All Rights Reserved. (Originally from FSComp.txt:849)

Output warning and error messages in color (%s by default) (Originally from FSComp.txt:932)

Compress interface and optimization data files (%s by default) (Originally from FSComp.txt:861)

Reference an assembly or directory containing a design time tool (Short form: -t) (Originally from FSComp.txt:868)

Specify the codepage used to read source files (Originally from FSComp.txt:903)

Use to override where the compiler looks for mscorlib.dll and framework components (Originally from FSComp.txt:919)

The command-line option '--cliroot' has been deprecated. Use an explicit reference to a specific copy of mscorlib.dll instead. (Originally from FSComp.txt:918)

Clear the package manager results cache (Originally from FSComp.txt:904)

Specify algorithm for calculating source file checksum stored in PDB. Supported values are: SHA1 or SHA256 (default) (Originally from FSComp.txt:910)

Generate overflow checks (%s by default) (Originally from FSComp.txt:896)

Enable nullness declarations and checks (%s by default) (Originally from FSComp.txt:1569)

Build a Windows executable (Originally from FSComp.txt:853)

Build a module that can be added to another assembly (Originally from FSComp.txt:855)

Build a library (Short form: -a) (Originally from FSComp.txt:854)

Build a console executable (Originally from FSComp.txt:852)

Base address for the library to be built (Originally from FSComp.txt:909)

Print the inferred interfaces of all compilation files to associated signature files (Originally from FSComp.txt:866)

A value marked as 'inline' has an unexpected value (Originally from FSComp.txt:1001)

A value marked as 'inline' could not be inlined (Originally from FSComp.txt:1002)

The value '%s' was marked inline but was not bound in the optimization environment (Originally from FSComp.txt:1000)

The value '%s' was marked inline but its implementation makes use of an internal or private function which is not sufficiently accessible (Originally from FSComp.txt:999)

Recursive ValValue %s (Originally from FSComp.txt:1004)

Failed to inline the value '%s' marked 'inline', perhaps because a recursive value was marked 'inline' (Originally from FSComp.txt:1003)

The value '%s' was marked 'InlineIfLambda' but was not determined to have a lambda value. This warning is for informational purposes only. (Originally from FSComp.txt:1716)

The union type for union case '%s' was defined with the RequireQualifiedAccessAttribute. Include the name of the union type ('%s') in the name you are using. (Originally from FSComp.txt:1022)

Unexpected empty long identifier (Originally from FSComp.txt:1018)

Multiple types exist called '%s', taking different numbers of generic parameters. Provide a type instantiation to disambiguate the type resolution, e.g. '%s'. (Originally from FSComp.txt:1014)

The instantiation of the generic type '%s' is missing and can't be inferred from the arguments or return type of this member. Consider providing a type instantiation when accessing this type, e.g. '%s'. (Originally from FSComp.txt:1015)

The record type for the record field '%s' was defined with the RequireQualifiedAccessAttribute. Include the name of the record type ('%s') in the name you are using. (Originally from FSComp.txt:1023)

The record type '%s' does not contain a label '%s'. (Originally from FSComp.txt:1019)

This is not a constructor or literal, or a constructor is being used incorrectly (Originally from FSComp.txt:1017)

Invalid module/expression/type (Originally from FSComp.txt:1013)

Invalid field label (Originally from FSComp.txt:1020)

Invalid expression '%s' (Originally from FSComp.txt:1021)

'global' may only be used as the first name in a qualified path (Originally from FSComp.txt:1016)

This value is not a function and cannot be applied. Did you intend to access the indexer via '%s[index]'? (Originally from FSComp.txt:1502)

This value is not a function and cannot be applied. Did you intend to access the indexer via '%s.[index]'? (Originally from FSComp.txt:1500)

(Originally from FSComp.txt:1504)

This expression is not a function and cannot be applied. Did you intend to access the indexer via 'expr[index]'? (Originally from FSComp.txt:1503)

This expression is not a function and cannot be applied. Did you intend to access the indexer via 'expr.[index]'? (Originally from FSComp.txt:1501)

This value is not a function and cannot be applied. Did you forget to terminate a declaration? (Originally from FSComp.txt:1505)

This value is not a function and cannot be applied. (Originally from FSComp.txt:1499)

No Invoke methods found for delegate type (Originally from FSComp.txt:985)

Files in libraries or multiple-file applications must begin with a namespace or module declaration. When using a module declaration at the start of a file the '=' sign is not allowed. If this is a top-level module, consider removing the = to resolve this error. (Originally from FSComp.txt:58)

+ %d overloads (Originally from FSComp.txt:1339)

+ 1 overload (Originally from FSComp.txt:1338)

Resource header beginning at offset %s is malformed. (Originally from FSComp.txt:1576)

Stream does not begin with a null resource and is not in '.RES' format. (Originally from FSComp.txt:1575)

More than one Invoke method found for delegate type (Originally from FSComp.txt:986)

The use of 'module M = struct ... end ' was deprecated in F# 2.0 and is no longer supported. Remove the 'struct' and 'end' and use indentation instead (Originally from FSComp.txt:1106)

The use of 'module M = sig ... end ' was deprecated in F# 2.0 and is no longer supported. Remove the 'sig' and 'end' and use indentation instead (Originally from FSComp.txt:1104)

The use of 'module M: sig ... end ' was deprecated in F# 2.0 and is no longer supported. Change the ':' to an '=' and remove the 'sig' and 'end' and use indentation instead (Originally from FSComp.txt:1103)

The use of multiple parenthesized type parameters before a generic type name such as '(int, int) Map' was deprecated in F# 2.0 and is no longer supported (Originally from FSComp.txt:1105)

This construct is for ML compatibility. %s. You can disable this warning by using '--mlcompatibility' or '--nowarn:62'. (Originally from FSComp.txt:1099)

The use of '#light \"off\"' or '#indent \"off\"' was deprecated in F# 2.0 and is no longer supported (Originally from FSComp.txt:1102)

In previous versions of F# '%s' was a reserved keyword but the use of this keyword is now deprecated (Originally from FSComp.txt:1101)

This construct is deprecated. %s. You can enable this feature by using '--langversion:5.0' and '--mlcompatibility'. (Originally from FSComp.txt:1100)

This 'if' expression is missing an 'else' branch. Because 'if' is an expression, and not a statement, add an 'else' branch which also returns a value of type '%s'. (Originally from FSComp.txt:26)

Method or object constructor '%s' is not static (Originally from FSComp.txt:1405)

Infix operator member '%s' has %d initial argument(s). Expected a tuple of 3 arguments (Originally from FSComp.txt:1350)

Infix operator member '%s' has %d initial argument(s). Expected a tuple of 2 arguments, e.g. static member (+) (x,y) = ... (Originally from FSComp.txt:1066)

Infix operator member '%s' has no arguments. Expected a tuple of 2 arguments, e.g. static member (+) (x,y) = ... (Originally from FSComp.txt:1065)

Infix operator member '%s' has extra curried arguments. Expected a tuple of 2 arguments, e.g. static member (+) (x,y) = ... (Originally from FSComp.txt:1067)

Pattern discard is not allowed for union case that takes no data. (Originally from FSComp.txt:1735)

(loading description...) (Originally from FSComp.txt:1346)

All elements of a list must be implicitly convertible to the type of the first element, which here is a tuple of length %d of type\n %s \nThis element is a tuple of length %d of type\n %s \n (Originally from FSComp.txt:23)

All elements of a list must be implicitly convertible to the type of the first element, which here is '%s'. This element has type '%s'. (Originally from FSComp.txt:22)

Identifiers containing '@' are reserved for use in F# code generation (Originally from FSComp.txt:990)

The identifier '%s' is reserved for future use by F# (Originally from FSComp.txt:991)

Unexpected syntax or possible incorrect indentation: this token is offside of context started at position %s. Try indenting this further.\nTo continue using non-conforming indentation, pass the '--strict-indentation-' flag to the compiler, or set the language version to F# 7. (Originally from FSComp.txt:1006)

The '|' tokens separating rules of this pattern match are misaligned by one column. Consider realigning your code or using further indentation. (Originally from FSComp.txt:1007)

Nested type definitions are not allowed. Types must be defined at module or namespace level. (Originally from FSComp.txt:1008)

'open' declarations must appear at module level, not inside types. (Originally from FSComp.txt:1011)

Modules cannot be nested inside types. Define modules at module or namespace level. (Originally from FSComp.txt:1009)

Exceptions must be defined at module level, not inside types. (Originally from FSComp.txt:1010)

'%s' must be defined at module level, not inside a type. (Originally from FSComp.txt:1012)

The indentation of this 'in' token is incorrect with respect to the corresponding 'let' (Originally from FSComp.txt:1005)

Syntax error. Wrong nested #endif, unexpected tokens before it. (Originally from FSComp.txt:1062)

There is another %s for this warning already in line %d. (Originally from FSComp.txt:1813)

Warn directives must have warning number(s) as argument(s) (Originally from FSComp.txt:1812)

#nowarn/#warnon directives must appear as the first non-whitespace characters on a line (Originally from FSComp.txt:1811)

The interpolated string contains unmatched closing braces. (Originally from FSComp.txt:1140)

Unexpected character '%s' (Originally from FSComp.txt:1030)

Invalid interpolated string. Triple quote string literals may not be used in interpolated expressions. Consider using an explicit 'let' binding for the interpolation expression. (Originally from FSComp.txt:1664)

The interpolated triple quoted string literal does not start with enough '$' characters to allow this many consecutive '%%' characters. (Originally from FSComp.txt:1141)

The interpolated triple quoted string literal does not start with enough '$' characters to allow this many consecutive opening braces as content. (Originally from FSComp.txt:1139)

This token is reserved for future use (Originally from FSComp.txt:1052)

This Unicode encoding is only valid in string literals (Originally from FSComp.txt:1051)

TABs are not allowed in F# code unless the #indent \"off\" option is used (Originally from FSComp.txt:1053)

Invalid interpolated string. Single quote or verbatim string literals may not be used in interpolated expressions in single quote or verbatim strings. Consider using an explicit 'let' binding for the interpolation expression or use a triple quote string as the outer string literal. (Originally from FSComp.txt:1663)

A '}' character must be escaped (by doubling) in an interpolated string. (Originally from FSComp.txt:1672)

This number is outside the allowable range for 32-bit unsigned integers (Originally from FSComp.txt:1039)

This number is outside the allowable range for 32-bit signed integers (Originally from FSComp.txt:1038)

This number is outside the allowable range for 32-bit floats (Originally from FSComp.txt:1046)

This number is outside the allowable range for 64-bit unsigned integers (Originally from FSComp.txt:1041)

This number is outside the allowable range for 64-bit signed integers (Originally from FSComp.txt:1040)

This number is outside the allowable range for 16-bit unsigned integers (Originally from FSComp.txt:1037)

This number is outside the allowable range for 16-bit signed integers (Originally from FSComp.txt:1036)

This number is outside the allowable range for unsigned native integers (Originally from FSComp.txt:1043)

This number is outside the allowable range for signed native integers (Originally from FSComp.txt:1042)

This number is outside the allowable range for this integer type (Originally from FSComp.txt:1025)

This number is outside the allowable range for 8-bit unsigned integers (Originally from FSComp.txt:1035)

This number is outside the allowable range for hexadecimal 8-bit signed integers (Originally from FSComp.txt:1034)

This number is outside the allowable range for 8-bit signed integers (Originally from FSComp.txt:1033)

This number is outside the allowable range for decimal literals (Originally from FSComp.txt:1045)

The file '%s' was also pointed to in a line directive in '%s'. Proper warn directive application may not be possible. (Originally from FSComp.txt:1814)

\U%s is not a valid Unicode character escape sequence (Originally from FSComp.txt:1136)

This is not a valid byte character literal. The value must be less than or equal to '\127'B.\nNote: In a future F# version this warning will be promoted to an error. (Originally from FSComp.txt:1049)

This is not a valid numeric literal. Valid numeric literals include 1, 0x1, 0o1, 0b1, 1l (int/int32), 1u (uint/uint32), 1L (int64), 1UL (uint64), 1s (int16), 1us (uint16), 1y (int8/sbyte), 1uy (uint8/byte), 1.0 (float/double), 1.0f (float32/single), 1.0m (decimal), 1I (bigint). (Originally from FSComp.txt:1047)

Invalid line number: '%s' (Originally from FSComp.txt:1054)

This is not a valid identifier (Originally from FSComp.txt:1751)

Invalid floating point number (Originally from FSComp.txt:1044)

'%s' is not a valid character literal.\nNote: Currently the value is wrapped around byte range to '%s'. In a future F# version this warning will be promoted to an error. (Originally from FSComp.txt:1143)

This is not a valid character literal (Originally from FSComp.txt:1050)

This is not a valid byte character literal. The value must be less than or equal to '\127'B. (Originally from FSComp.txt:1048)

Consider using a file with extension '.ml' or '.mli' instead (Originally from FSComp.txt:1112)

IF-FSHARP/IF-CAML regions are no longer supported (Originally from FSComp.txt:1113)

Identifiers followed by '%s' are reserved for future use (Originally from FSComp.txt:1032)

#if directive should be immediately followed by an identifier (Originally from FSComp.txt:1061)

#if directive must appear as the first non-whitespace character on a line (Originally from FSComp.txt:1055)

#endif has no matching #if (Originally from FSComp.txt:1059)

#endif required for #else (Originally from FSComp.txt:1057)

#endif directive must appear as the first non-whitespace character on a line (Originally from FSComp.txt:1060)

#else has no matching #if (Originally from FSComp.txt:1056)

#else directive must appear as the first non-whitespace character on a line (Originally from FSComp.txt:1058)

#! may only appear as the first line at the start of a file. (Originally from FSComp.txt:1063)

Extended string interpolation is not supported in this version of F#. (Originally from FSComp.txt:1142)

'%s' is not permitted as a character in operator names and is reserved for future use (Originally from FSComp.txt:1029)

a byte string may not be interpolated (Originally from FSComp.txt:1666)

This byte array literal contains %d non-ASCII characters. All characters should be < 128y. (Originally from FSComp.txt:1144)

This byte array literal contains %d characters that do not encode as a single byte (Originally from FSComp.txt:1031)

Used in a computation expression to append the result of a given computation expression to a collection of results for the containing computation expression. (Originally from FSComp.txt:1489)

Used in a sequence expression to produce a value for a sequence. (Originally from FSComp.txt:1488)

Used together with the match keyword in pattern matching expressions. Also used in object expressions, record copying expressions, and type extensions to introduce member definitions, and to introduce exception handlers. (Originally from FSComp.txt:1487)

Used in computation expressions to introduce a looping construct where the condition is the result of another computation expression. (Originally from FSComp.txt:1486)

Introduces a looping construct. (Originally from FSComp.txt:1485)

Used for Boolean conditions (when guards) on pattern matches and to introduce a constraint clause for a generic type parameter. (Originally from FSComp.txt:1484)

Indicates the .NET void type. Used when interoperating with other .NET languages. (Originally from FSComp.txt:1483)

Used in a signature to indicate a value, or in a type to declare a member, in limited situations. (Originally from FSComp.txt:1482)

Used instead of let! in computation expressions for computation expression results that implement IDisposable. (Originally from FSComp.txt:1481)

Used instead of let for values that implement IDisposable (Originally from FSComp.txt:1480)

Used to convert to a type that is higher in the inheritance chain. (Originally from FSComp.txt:1479)

Delimits a untyped code quotation. (Originally from FSComp.txt:1495)

Delimits a typed code quotation. (Originally from FSComp.txt:1494)

Used to check if an object is of the given type in a pattern or binding. (Originally from FSComp.txt:1478)

Used to declare a class, record, structure, discriminated union, enumeration type, unit of measure, or type abbreviation. (Originally from FSComp.txt:1477)

Used to introduce a block of code that might generate an exception. Used together with 'with' or 'finally'. (Originally from FSComp.txt:1476)

Used as a Boolean literal. (Originally from FSComp.txt:1437)

Used in for loops to indicate a range. (Originally from FSComp.txt:1475)

Used in conditional expressions. Also used to perform side effects after object construction. (Originally from FSComp.txt:1474)

Used to declare a structure type. Also used in generic parameter constraints. (Originally from FSComp.txt:1473)

Used to indicate a method or property that can be called without an instance of a type, or a value member that is shared among all instances of a type. (Originally from FSComp.txt:1472)

Keyword reserved for ML-compatibility. (Originally from FSComp.txt:1471)

Used in query expressions to specify what fields or columns to extract. Note that this is a contextual keyword, which means that it is not actually a reserved word and it only acts like a keyword in appropriate context. (Originally from FSComp.txt:1470)

In function types, delimits arguments and return values. Yields an expression (in sequence expressions); equivalent to the yield keyword. Used in match expressions (Originally from FSComp.txt:1490)

Used to provide a value for the result of the containing computation expression, where that value itself comes from the result another computation expression. (Originally from FSComp.txt:1469)

Used to provide a value for the result of the containing computation expression. (Originally from FSComp.txt:1468)

Used to indicate that a function is recursive. (Originally from FSComp.txt:1467)

Allows access to a member from outside the type. (Originally from FSComp.txt:1466)

Restricts access to a member to code in the same type or module. (Originally from FSComp.txt:1465)

Used to implement a version of an abstract or virtual method that differs from the base version. (Originally from FSComp.txt:1464)

Used with Boolean conditions as a Boolean or operator. Equivalent to ||. Also used in member constraints. (Originally from FSComp.txt:1463)

Used to make the contents of a namespace or module available without qualification. (Originally from FSComp.txt:1462)

Used in discriminated unions to indicate the type of categories of values, and in delegate and exception declarations. (Originally from FSComp.txt:1461)

Indicates the absence of an object. Also used in generic parameter constraints. (Originally from FSComp.txt:1460)

Not actually a keyword. However, not struct in combination is used as a generic parameter constraint. (Originally from FSComp.txt:1459)

Used to declare, define, or invoke a constructor that creates or that can create an object. Also used in generic parameter constraints to indicate that a type must have a certain constructor. (Originally from FSComp.txt:1458)

Used to associate a name with a group of related types and modules, to logically separate it from other code. (Originally from FSComp.txt:1457)

Used to declare a variable, that is, a value that can be changed. (Originally from FSComp.txt:1456)

Used to associate a name with a group of related types, values, and functions, to logically separate it from other code. (Originally from FSComp.txt:1455)

Used to declare a property or method in an object type. (Originally from FSComp.txt:1454)

Used in computation expressions to pattern match directly over the result of another computation expression. (Originally from FSComp.txt:1453)

Used to branch by comparing a value to a pattern. (Originally from FSComp.txt:1452)

Used in computation expressions to bind a name to the result of another computation expression. (Originally from FSComp.txt:1451)

Used to associate, or bind, a name to a value or function. (Originally from FSComp.txt:1450)

Assigns a value to a variable. (Originally from FSComp.txt:1491)

Used to specify a computation that is to be performed only when a result is needed. (Originally from FSComp.txt:1449)

Used to specify that a member is visible inside an assembly but not outside it. (Originally from FSComp.txt:1448)

Used to declare and implement interfaces. (Originally from FSComp.txt:1447)

Used to indicate a function that should be integrated directly into the caller's code. (Originally from FSComp.txt:1446)

Used to specify a base class or base interface. (Originally from FSComp.txt:1445)

Used for sequence expressions and, in verbose syntax, to separate expressions from bindings. (Originally from FSComp.txt:1444)

Used in conditional branching constructs. (Originally from FSComp.txt:1443)

Used to reference the top-level .NET namespace. (Originally from FSComp.txt:1442)

Used as a shorter alternative to the fun keyword and a match expression in a lambda expression that has pattern matching on a single argument. (Originally from FSComp.txt:1441)

Used in lambda expressions, also known as anonymous functions. (Originally from FSComp.txt:1440)

Used in looping constructs. (Originally from FSComp.txt:1439)

Used together with try to introduce a block of code that executes regardless of whether an exception occurs. (Originally from FSComp.txt:1438)

Indicates that a declared program element is defined in another binary or assembly. (Originally from FSComp.txt:1436)

Used to declare an exception type. (Originally from FSComp.txt:1435)

In type definitions and type extensions, indicates the end of a section of member definitions. In verbose syntax, used to specify the end of a code block that starts with the begin keyword. (Originally from FSComp.txt:1434)

Used in conditional branching. (Originally from FSComp.txt:1433)

Used in conditional branching. A short form of else if. (Originally from FSComp.txt:1432)

Converts a type to a type that is lower in the hierarchy. (Originally from FSComp.txt:1493)

In a for expression, used when counting in reverse. (Originally from FSComp.txt:1431)

Used to convert to a type that is lower in the inheritance chain. (Originally from FSComp.txt:1430)

In verbose syntax, indicates the end of a block of code in a looping expression. (Originally from FSComp.txt:1429)

Used in looping constructs or to execute imperative code. (Originally from FSComp.txt:1428)

Used to declare a delegate. (Originally from FSComp.txt:1427)

Indicates an implementation of an abstract method; used together with an abstract method declaration to create a virtual method. (Originally from FSComp.txt:1426)

Keyword to specify a constant literal as a type parameter argument in Type Providers. (Originally from FSComp.txt:1425)

In verbose syntax, indicates the start of a class definition. (Originally from FSComp.txt:1424)

Converts a type to type that is higher in the hierarchy. (Originally from FSComp.txt:1492)

In verbose syntax, indicates the start of a code block. (Originally from FSComp.txt:1423)

Used as the name of the base class object. (Originally from FSComp.txt:1422)

Used to verify code during debugging. (Originally from FSComp.txt:1421)

Used to give the current class object an object name. Also used to give a name to a whole pattern within a pattern match. (Originally from FSComp.txt:1420)

Used in mutually recursive bindings, in property declarations, and with multiple constraints on generic parameters. (Originally from FSComp.txt:1419)

Indicates a method that either has no implementation in the type in which it is declared or that is virtual and has a default implementation. (Originally from FSComp.txt:1418)

%s '%s' not found in type '%s' from assembly '%s'. A possible cause may be a version incompatibility. You may need to explicitly reference the correct version of this assembly to allow all referenced components to use the correct version. (Originally from FSComp.txt:1497)

%s '%s' not found in assembly '%s'. A possible cause may be a version incompatibility. You may need to explicitly reference the correct version of this assembly to allow all referenced components to use the correct version. (Originally from FSComp.txt:1496)

XML comment is not placed on a valid language element. (Originally from FSComp.txt:1719)

The 'anycpu32bitpreferred' platform can only be used with EXE targets. You must use 'anycpu' instead. (Originally from FSComp.txt:1333)

invalid namespace for provided type (Originally from FSComp.txt:1229)

invalid full name for provided type (Originally from FSComp.txt:1230)

Invalid provided literal value '%s' (Originally from FSComp.txt:1332)

This expression returns a value of type '%s' but is implicitly discarded. Consider using 'let' to bind the result to a name, e.g. 'let result = expression'. If you intended to use the expression as a value in the sequence then use an explicit 'yield!'. (Originally from FSComp.txt:1509)

This expression returns a value of type '%s' but is implicitly discarded. Consider using 'let' to bind the result to a name, e.g. 'let result = expression'. If you intended to use the expression as a value in the sequence then use an explicit 'yield'. (Originally from FSComp.txt:1508)

The 'InlineIfLambda' attribute is present in the signature but not the implementation. (Originally from FSComp.txt:1717)

The type '%s' is required here and is unavailable. You must add a reference to assembly '%s'. (Originally from FSComp.txt:994)

A reference to the type '%s' in assembly '%s' was found, but the type could not be found in that assembly (Originally from FSComp.txt:995)

A reference to the DLL %s is required by assembly %s. The imported type %s is located in the first assembly and could not be resolved. (Originally from FSComp.txt:997)

Internal error or badly formed metadata: not enough type parameters were in scope while importing (Originally from FSComp.txt:996)

Invalid number of generic arguments to type '%s' in provided type. Expected '%d' arguments, given '%d'. (Originally from FSComp.txt:1309)

Invalid value unit-of-measure parameter '%s' (Originally from FSComp.txt:1311)

Invalid value '%s' for unit-of-measure parameter '%s' (Originally from FSComp.txt:1310)

An imported assembly uses the type '%s' but that type is not public (Originally from FSComp.txt:998)

Invalid argument to 'methodhandleof' during codegen (Originally from FSComp.txt:1271)

The resumable code construct '%s' may only be used in inlined code protected by 'if __useResumableCode then ...' and the overall composition must form valid resumable code. (Originally from FSComp.txt:1694)

Unknown debug point '%s'. The available debug points are '%s'. (Originally from FSComp.txt:1705)

Unexpected error creating debug information file '%s' (Originally from FSComp.txt:1024)

The file '%s' changed on disk unexpectedly, please reload. (Originally from FSComp.txt:1510)

Compiler error: unexpected unrealized value (Originally from FSComp.txt:838)

Unexpected GetSet annotation on a property (Originally from FSComp.txt:841)

Undefined value '%s' (Originally from FSComp.txt:825)

This type cannot be used for a literal field (Originally from FSComp.txt:840)

The StructLayout attribute could not be decoded (Originally from FSComp.txt:843)

GenSetStorage: %s was represented as a static method but was not an appropriate lambda expression (Originally from FSComp.txt:836)

The signature for this external function contains type parameters. Constrain the argument and return types to indicate the types of the corresponding C function. (Originally from FSComp.txt:833)

RSA key expected (Originally from FSComp.txt:1153)

Private key expected (Originally from FSComp.txt:1152)

No signature directory (Originally from FSComp.txt:1158)

Invalid signature size (Originally from FSComp.txt:1157)

Invalid RSAParameters structure - '{0}' expected (Originally from FSComp.txt:1155)

Invalid Public Key blob (Originally from FSComp.txt:1159)

Invalid Magic value in CLR Header (Originally from FSComp.txt:1150)

Invalid bit Length (Originally from FSComp.txt:1154)

Invalid algId - 'Exponent' expected (Originally from FSComp.txt:1156)

Bad image format (Originally from FSComp.txt:1151)

Reflected definitions cannot contain uses of the prefix splice operator '%%' (Originally from FSComp.txt:845)

Mutable variables cannot escape their method (Originally from FSComp.txt:837)

The MarshalAs attribute could not be decoded (Originally from FSComp.txt:832)

Main module of program is empty: nothing will happen when it is run (Originally from FSComp.txt:839)

Literal fields cannot be set (Originally from FSComp.txt:835)

Label %s not found (Originally from FSComp.txt:826)

Incorrect number of type arguments to local call (Originally from FSComp.txt:827)

The FieldOffset attribute could not be decoded (Originally from FSComp.txt:842)

The FieldOffset attribute can only be placed on members of types marked with the StructLayout(LayoutKind.Explicit) (Originally from FSComp.txt:1116)

The type '%s' has been marked as having an Explicit layout, but the field '%s' has not been marked with the 'FieldOffset' attribute (Originally from FSComp.txt:1107)

Dynamic invocation of %s is not supported (Originally from FSComp.txt:828)

The DllImport attribute could not be decoded (Originally from FSComp.txt:834)

The DefaultAugmentation attribute could not be decoded (Originally from FSComp.txt:844)

Custom marshallers cannot be specified in F# code. Consider using a C# helper function. (Originally from FSComp.txt:831)

This operation involves taking the address of a value '%s' represented using a local variable or other special representation. This is invalid. (Originally from FSComp.txt:830)

Taking the address of a literal field is invalid (Originally from FSComp.txt:829)

The 'if' expression needs to return a tuple of length %d of type\n %s \nto satisfy context type requirements. It currently returns a tuple of length %d of type\n %s \n (Originally from FSComp.txt:28)

The 'if' expression needs to have type '%s' to satisfy context type requirements. It currently has type '%s'. (Originally from FSComp.txt:27)

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

Invalid directive '#%s %s' (Originally from FSComp.txt:1567)

Cannot find FSharp.Core.dll in compiler's directory (Originally from FSComp.txt:1386)

Conflicting options specified: 'win32manifest' and 'win32res'. Only one of these can be used. (Originally from FSComp.txt:1165)

Exiting - too many errors (Originally from FSComp.txt:1161)

System.Runtime.InteropServices assembly is required to use UnknownWrapper\DispatchWrapper classes. (Originally from FSComp.txt:1368)

Static linking may not be used on an assembly referencing mscorlib (e.g. a .NET Framework assembly) when generating an assembly that references System.Runtime (e.g. a .NET Core or Portable assembly). (Originally from FSComp.txt:1184)

Static linking may not include a mixed managed/unmanaged DLL (Originally from FSComp.txt:1169)

Static linking may not include a .EXE (Originally from FSComp.txt:1168)

Passing a .resx file (%s) as a source file to the compiler is deprecated. Use resgen.exe to transform the .resx file into a .resources file to pass as a --resource option. If you are using MSBuild, this can be done via an <EmbeddedResource> item in the .fsproj project file. (Originally from FSComp.txt:1183)

The resident compilation service was not used because a problem occurred in communicating with the server. (Originally from FSComp.txt:1181)

The assembly '%s' is listed on the command line. Assemblies should be referenced using a command line flag such as '-r'. (Originally from FSComp.txt:1180)

Code in this assembly makes uses of quotation literals. Static linking may not include components that make use of quotation literals unless all assemblies are compiled with at least F# 4.0. (Originally from FSComp.txt:1167)

The code in assembly '%s' makes uses of quotation literals. Static linking may not include components that make use of quotation literals unless all assemblies are compiled with at least F# 4.0. (Originally from FSComp.txt:1166)

A problem occurred writing the binary '%s': %s (Originally from FSComp.txt:1174)

No implementation files specified (Originally from FSComp.txt:1163)

Option '--keycontainer' overrides attribute 'System.Reflection.AssemblyNameAttribute' given in a source file or added module (Originally from FSComp.txt:1179)

Option '--keyfile' overrides attribute 'System.Reflection.AssemblyKeyFileAttribute' given in a source file or added module (Originally from FSComp.txt:1178)

The key file '%s' could not be opened (Originally from FSComp.txt:1173)

Ignoring mixed managed/unmanaged assembly '%s' during static linking (Originally from FSComp.txt:1170)

Option '--delaysign' overrides attribute 'System.Reflection.AssemblyDelaySignAttribute' given in a source file or added module (Originally from FSComp.txt:1177)

The attribute %s specified version '%s', but this value is invalid and has been ignored (Originally from FSComp.txt:1164)

Assembly '%s' was referenced transitively and the assembly could not be resolved automatically. Static linking will assume this DLL has no dependencies on the F# library or other statically linked DLLs. Consider adding an explicit reference to this DLL. (Originally from FSComp.txt:1171)

An %s specified version '%s', but this value is a wildcard, and you have requested a deterministic build, these are in conflict. (Originally from FSComp.txt:1185)

The 'AssemblyVersionAttribute' has been ignored because a version was given using a command line option (Originally from FSComp.txt:1175)

Assembly '%s' not found in dependency set of target binary. Statically linked roots should be specified using an assembly name, without a DLL or EXE extension. If this assembly was referenced explicitly then it is possible the assembly was not actually required by the generated binary, in which case it should not be statically linked. (Originally from FSComp.txt:1172)

Error emitting 'System.Reflection.AssemblyCultureAttribute' attribute -- 'Executables cannot be satellite assemblies, Culture should always be empty' (Originally from FSComp.txt:1176)

The 'from the end slicing' feature requires language version 'preview'. (Originally from FSComp.txt:1558)

- %s (Originally from FSComp.txt:1577)

Prefix flag (' ' or '+') set twice (Originally from FSComp.txt:234)

Precision missing after the '.' (Originally from FSComp.txt:239)

Positional specifiers are not permitted in format strings (Originally from FSComp.txt:231)

The '%%A' format specifier may not be used in an assembly being compiled with option '--reflectionfree'. This construct implicitly uses reflection. (Originally from FSComp.txt:246)

Missing format specifier (Originally from FSComp.txt:232)

The 'l' or 'L' in this format specifier is unnecessary. In F# code you can use %%d, %%x, %%o or %%u instead, which are overloaded to work with all basic integer types. (Originally from FSComp.txt:242)

The # formatting modifier is invalid in F# (Originally from FSComp.txt:235)

The 'h' or 'H' in this format specifier is unnecessary. You can use %%d, %%x, %%o or %%u instead, which are overloaded to work with all basic integer types. (Originally from FSComp.txt:243)

Interpolated strings used as type IFormattable or type FormattableString may not use '%%' specifiers, only .NET-style interpolands such as '{expr}', '{expr,3}' or '{expr:N5}' may be used. (Originally from FSComp.txt:1660)

The '%%P' specifier may not be used explicitly. (Originally from FSComp.txt:1659)

.NET-style format specifiers such as '{x,3}' or '{x:N5}' may not be mixed with '%%' format specifiers. (Originally from FSComp.txt:1658)

Interpolated strings may not use '%%' format specifiers unless each is given an expression, e.g. '%%d{1+1}'. (Originally from FSComp.txt:1657)

'%s' format does not support precision (Originally from FSComp.txt:240)

'%s' flag set twice (Originally from FSComp.txt:233)

'%s' format does not support '0' flag (Originally from FSComp.txt:238)

'%s' does not support prefix '%s' flag (Originally from FSComp.txt:244)

Bad width in format specifier (Originally from FSComp.txt:237)

Bad precision in format specifier (Originally from FSComp.txt:236)

Bad format specifier: '%s' (Originally from FSComp.txt:245)

Bad format specifier (after l or L): Expected ld,li,lo,lu,lx or lX. In F# code you can use %%d, %%x, %%o or %%u instead, which are overloaded to work with all basic integer types. (Originally from FSComp.txt:241)

All branches of a pattern match expression must return values implicitly convertible to the type of the first branch, which here is a tuple of length %d of type\n %s \nThis branch returns a tuple of length %d of type\n %s \n (Originally from FSComp.txt:32)

All branches of a pattern match expression must return values implicitly convertible to the type of the first branch, which here is '%s'. This branch returns a value of type '%s'. (Originally from FSComp.txt:31)

The record, struct or class field '%s' is not accessible from this code location (Originally from FSComp.txt:982)

witness passing for trait constraints in F# quotations (Originally from FSComp.txt:1594)

wild card in for loop (Originally from FSComp.txt:1579)

'while!' expression (Originally from FSComp.txt:1622)

Raises warnings when multiple record type matches were found during name resolution because of overlapping field names. (Originally from FSComp.txt:1617)

Raises warnings when 'let inline ... =' is used together with [<MethodImpl(MethodImplOptions.NoInlining)>] attribute. Function is not getting inlined. (Originally from FSComp.txt:1608)

Raises warnings when an copy-and-update record expression changes all fields of a record. (Originally from FSComp.txt:1612)

Indexed properties getter and setter must have the same type (Originally from FSComp.txt:1626)

Use type conversion cache during compilation (Originally from FSComp.txt:1798)

Allows use! _ = ... in computation expressions (Originally from FSComp.txt:1806)

Interop between C#'s and F#'s unmanaged generic constraint (emit additional modreq) (Originally from FSComp.txt:1766)

Union case test properties (Originally from FSComp.txt:1628)

Support for try-with in sequence expressions (Originally from FSComp.txt:1611)

Warn when unit is passed to a member accepting `obj` argument, e.g. `Method(o:obj)` will warn if called via `Method()`. (Originally from FSComp.txt:1805)

Support ValueOption as valid type for optional member parameters (Originally from FSComp.txt:1804)

struct representation for active patterns (Originally from FSComp.txt:1596)

string interpolation (Originally from FSComp.txt:1593)

Raises errors on incorrect indentation, allows better recovery and analysis during editing (Originally from FSComp.txt:1619)

Static members in interfaces (Originally from FSComp.txt:1613)

Allow static let bindings in union, record, struct, non-incremental-class types (Originally from FSComp.txt:1755)

single underscore pattern (Originally from FSComp.txt:1578)

self type constraints (Originally from FSComp.txt:1601)

Support for scoped enabling / disabling of warnings by #warn and #nowarn directives, also inside modules (Originally from FSComp.txt:1808)

Share underlying fields in a [<Struct>] discriminated union as long as they have same name and type (Originally from FSComp.txt:1775)

Support for ReturnFromFinal/YieldFromFinal in computation expressions to enable tailcall optimization when available on the builder. (Originally from FSComp.txt:1816)

resumable state machines (Originally from FSComp.txt:1590)

support for required properties (Originally from FSComp.txt:1602)

whitespace relaxation v2 (Originally from FSComp.txt:1597)

whitespace relaxation (Originally from FSComp.txt:1580)

informational messages related to reference cells (Originally from FSComp.txt:1263)

list literals of any size (Originally from FSComp.txt:1598)

binary formatting for integers (Originally from FSComp.txt:1261)

prefer String.GetPinnableReference in fixed bindings (Originally from FSComp.txt:1624)

prefer extension method over plain property (Originally from FSComp.txt:1625)

Unexpected integer literal '%d'. (Originally from FSComp.txt:1791)

Unexpected identifier '%s'. (Originally from FSComp.txt:1792)

# directives with non-quoted string arguments (Originally from FSComp.txt:1790)

package management (Originally from FSComp.txt:1585)

overloads for custom operations (Originally from FSComp.txt:1259)

open type declaration (Originally from FSComp.txt:1583)

nullness checking (Originally from FSComp.txt:1589)

nullable optional interop (Originally from FSComp.txt:1591)

non-variable patterns to the right of 'as' patterns (Originally from FSComp.txt:1265)

String values marked as literals and IL constants as printf format (Originally from FSComp.txt:1614)

Nested record field copy-and-update (Originally from FSComp.txt:1615)

nameof (Originally from FSComp.txt:1581)

Pattern match discard is not allowed for union case that takes no data. (Originally from FSComp.txt:1605)

ML compatibility revisions (Originally from FSComp.txt:1267)

Allow lowercase DU when RequireQualifiedAccess attribute (Originally from FSComp.txt:1604)

Lowers [for x in xs -> f x] and [|for x in xs -> f x|] to fast loops when xs is a list or an array, respectively. (Originally from FSComp.txt:1633)

Optimizes interpolated strings in certain cases, by lowering to concatenation (Originally from FSComp.txt:1631)

Optimizes certain uses of the integral range (..) and range-step (.. ..) operators to fast while-loops. (Originally from FSComp.txt:1632)

interfaces with multiple generic instantiation (Originally from FSComp.txt:1640)

static abstract interface members (Originally from FSComp.txt:1600)

support for consuming init properties (Originally from FSComp.txt:1603)

Diagnostic 3559 (warn when obj inferred) at informational level, off by default (Originally from FSComp.txt:1754)

expr[idx] notation for indexing and slicing (Originally from FSComp.txt:1262)

Improved implied argument names (Originally from FSComp.txt:1618)

implicit yield (Originally from FSComp.txt:1582)

from-end slicing (Originally from FSComp.txt:1586)

fixed-index slice 3d/4d (Originally from FSComp.txt:1587)

Extended string interpolation similar to C# raw string literals. (Originally from FSComp.txt:1616)

extended fixed bindings for byref and GetPinnableReference (Originally from FSComp.txt:1623)

more types support units of measure (Originally from FSComp.txt:1260)

Escapes curly braces before calling FormattableStringFactory.Create when interpolated string literal is typed as FormattableString (Originally from FSComp.txt:1738)

Error reporting on static classes (Originally from FSComp.txt:1610)

Error when invalid declarations are used in type definitions. (Originally from FSComp.txt:1809)

give error on deprecated access of construct with RequireQualifiedAccess attribute (Originally from FSComp.txt:1599)

Raises errors for non-virtual members overrides (Originally from FSComp.txt:1607)

Enforce AttributeTargets (Originally from FSComp.txt:1630)

Support for computation expressions with empty bodies: builder { } (Originally from FSComp.txt:1793)

dotless float32 literal (Originally from FSComp.txt:1584)

Don't warn on uppercase identifiers in binding patterns (Originally from FSComp.txt:1800)

discard pattern in use binding (Originally from FSComp.txt:1264)

Deprecate places where 'seq' can be omitted (Originally from FSComp.txt:1803)

fix to resolution of delegate type names, see https://github.com/dotnet/fsharp/issues/10228 (Originally from FSComp.txt:1269)

default interface member consumption (Originally from FSComp.txt:1592)

Constraint intersection on flexible types (Originally from FSComp.txt:1620)

Raises warnings if the 'TailCall' attribute is used on non-recursive functions. (Originally from FSComp.txt:1627)

Raises warnings if a member or function has the 'TailCall' attribute, but is not being used in a tail recursive way. (Originally from FSComp.txt:1621)

Allow implicit Extension attribute on declaring types, modules (Originally from FSComp.txt:1606)

Boolean-returning and return-type-directed partial active patterns (Originally from FSComp.txt:1629)

automatic generation of 'Message' property for 'exception' declarations (Originally from FSComp.txt:1268)

Support for better anonymous record parsing (Originally from FSComp.txt:1807)

attributes to the right of the 'module' keyword (Originally from FSComp.txt:1266)

Arithmetic and logical operations in literals, enum definitions and attributes (Originally from FSComp.txt:1609)

applicative computation expressions (Originally from FSComp.txt:1588)

Allow object expressions without overrides (Originally from FSComp.txt:1797)

Allow let! and use! type annotations without requiring parentheses (Originally from FSComp.txt:1810)

Allow access modifiers to auto properties getters and setters (Originally from FSComp.txt:1795)

additional type-directed conversions (Originally from FSComp.txt:1595)

underscore dot shorthand for accessor only function (Originally from FSComp.txt:1761)

%s for F# %s (Originally from FSComp.txt:1570)

Expression does not have a name. (Originally from FSComp.txt:1534)

This construct is experimental (Originally from FSComp.txt:984)

The event '%s' has a non-standard type. If this event is declared in another CLI language, you may need to access this event using the explicit %s and %s methods for the event. If this event is declared in F#, make the type of the event an instantiation of either 'IDelegateEvent<_>' or 'IEvent<_,_>'. (Originally from FSComp.txt:977)

Unsupported expression '%s' from type provider. If you are the author of this type provider, consider adjusting it to provide a different provided expression. (Originally from FSComp.txt:1208)

Invalid member '%s' on provided type '%s'. Only properties, methods and constructors are allowed (Originally from FSComp.txt:1200)

Unsupported constant type '%s'. Quotations provided by type providers can only contain simple constants. The implementation of the type provider may need to be adjusted by moving a value declared outside a provided quotation literal to be a 'let' binding inside the quotation literal. (Originally from FSComp.txt:1207)

Unknown static argument kind '%s' when resolving a reference to a provided type or method '%s' (Originally from FSComp.txt:1226)

Unexpected 'null' return value from provided type '%s' member '%s' (Originally from FSComp.txt:1221)

Unexpected exception from provided type '%s' member '%s': %s (Originally from FSComp.txt:1206)

Unexpected exception from member '%s' of provided type '%s' member '%s': %s (Originally from FSComp.txt:1222)

The type provider constructor has thrown an exception: %s (Originally from FSComp.txt:1232)

Too many static parameters. Expected at most %d parameters, but got %d unnamed and %d named parameters. (Originally from FSComp.txt:1331)

The static parameter '%s' of the provided type or method '%s' requires a value. Static parameters to type providers may be optionally specified using named arguments, e.g. '%s<%s=...>'. (Originally from FSComp.txt:1252)

The static parameter '%s' has already been given a value (Originally from FSComp.txt:1254)

The type provider returned 'null', which is not a valid return value from '%s' (Originally from FSComp.txt:1231)

Assembly attribute '%s' refers to a designer assembly '%s' which cannot be loaded or doesn't exist. The exception reported was: %s - %s (Originally from FSComp.txt:1212)

Assembly attribute '%s' refers to a designer assembly '%s' which cannot be loaded from path '%s'. The exception reported was: %s - %s (Originally from FSComp.txt:1213)

The type provider designer assembly '%s' could not be loaded from folder '%s'. The exception reported was: %s - %s (Originally from FSComp.txt:1228)

The type provider designer assembly '%s' could not be loaded from folder '%s' because a dependency was missing or could not loaded. All dependencies of the type provider designer assembly must be located in the same folder as that assembly. The exception reported was: %s - %s (Originally from FSComp.txt:1227)

The type provider '%s' reported an error in the context of provided type '%s', member '%s'. The error: %s (Originally from FSComp.txt:1245)

The type provider '%s' reported an error: %s (Originally from FSComp.txt:1215)

The type provider does not have a valid constructor. A constructor taking either no arguments or one argument of type 'TypeProviderConfig' was expected. (Originally from FSComp.txt:1214)

The '%s' of a provided type was null or empty. (Originally from FSComp.txt:1247)

An exception occurred when accessing the '%s' of a provided type: %s (Originally from FSComp.txt:1246)

A reference to a provided type was missing a value for the static parameter '%s'. You may need to recompile one or more referenced assemblies. (Originally from FSComp.txt:1272)

A reference to a provided type had an invalid value '%s' for a static parameter. You may need to recompile one or more referenced assemblies. (Originally from FSComp.txt:1273)

Expected provided type with path '%s' but provided type has path '%s' (Originally from FSComp.txt:1220)

Expected provided type named '%s' but provided type has 'Name' with value '%s' (Originally from FSComp.txt:1209)

The type provider '%s' returned an invalid type from 'ApplyStaticArguments'. A type with name '%s' was expected, but a type with name '%s' was returned. (Originally from FSComp.txt:1234)

The type provider '%s' returned an invalid method from 'ApplyStaticArgumentsForMethod'. A method with name '%s' was expected, but a method with name '%s' was returned. (Originally from FSComp.txt:1235)

Property '%s' on provided type '%s' is neither readable nor writable as it has CanRead=false and CanWrite=false (Originally from FSComp.txt:1312)

Property '%s' on provided type '%s' has CanWrite=false but GetSetMethod() returned a method (Originally from FSComp.txt:1204)

Property '%s' on provided type '%s' has CanRead=false but GetGetMethod() returned a method (Originally from FSComp.txt:1202)

Property '%s' on provided type '%s' has CanWrite=true but there was no value from GetSetMethod() (Originally from FSComp.txt:1203)

Property '%s' on provided type '%s' has CanRead=true but there was no value from GetGetMethod() (Originally from FSComp.txt:1201)

One or more errors seen during provided type setup (Originally from FSComp.txt:1205)

Type provider '%s' returned null from GetInvokerExpression. (Originally from FSComp.txt:1233)

The provided type '%s' returned a member with a null or empty member name (Originally from FSComp.txt:1190)

The provided type '%s' has member '%s' which has declaring type '%s'. Expected declaring type to be the same as provided type. (Originally from FSComp.txt:1193)

The provided type '%s' member info '%s' has null declaring type (Originally from FSComp.txt:1192)

The provided type '%s' returned a null member (Originally from FSComp.txt:1191)

No static parameter exists with name '%s' (Originally from FSComp.txt:1253)

Nested provided types do not take static arguments or generic parameters (Originally from FSComp.txt:1223)

Provided type '%s' has 'IsGenericType' as true, but generic types are not supported. (Originally from FSComp.txt:1197)

Provided type '%s' has 'IsArray' as true, but array types are not supported. (Originally from FSComp.txt:1198)

Multiple static parameters exist with name '%s' (Originally from FSComp.txt:1255)

This provided method requires static parameters (Originally from FSComp.txt:1388)

Invalid member '%s' on provided type '%s'. Provided type members must be public, and not be generic, virtual, or abstract. (Originally from FSComp.txt:1199)

Assembly '%s' has TypeProviderAssembly attribute with invalid value '%s'. The value should be a valid assembly name (Originally from FSComp.txt:1240)

Invalid static argument to provided type. Expected an argument of kind '%s'. (Originally from FSComp.txt:1224)

The type provider '%s' provided a method with a name '%s' and metadata token '%d', which is not reported among its methods of its declaring type '%s' (Originally from FSComp.txt:1217)

The type provider '%s' provided a constructor which is not reported among the constructors of its declaring type '%s' (Originally from FSComp.txt:1218)

The type provider '%s' used an invalid parameter in the ParameterExpression: %s (Originally from FSComp.txt:1216)

Character '%s' is not allowed in provided type name '%s' (Originally from FSComp.txt:1248)

Character '%s' is not allowed in provided namespace name '%s' (Originally from FSComp.txt:1189)

Referenced assembly '%s' has assembly level attribute '%s' but no public type provider classes were found (Originally from FSComp.txt:1194)

Event '%s' on provided type '%s' has no value from GetRemoveMethod() (Originally from FSComp.txt:1211)

Event '%s' on provided type '%s' has no value from GetAddMethod() (Originally from FSComp.txt:1210)

An error occurred applying the static arguments to a provided type (Originally from FSComp.txt:1225)

An error occurred applying the static arguments to a provided method (Originally from FSComp.txt:1371)

The provider '%s' returned a non-generated type '%s' in the context of a set of generated types. Consider adjusting the type provider to only return generated types. (Originally from FSComp.txt:1335)

Type '%s' from type provider '%s' has an empty namespace. Use 'null' for the global namespace. (Originally from FSComp.txt:1195)

Empty namespace found from the type provider '%s'. Use 'null' for the global namespace. (Originally from FSComp.txt:1196)

A direct reference to the generated type '%s' is not permitted. Instead, use a type definition, e.g. 'type TypeAlias = <path>'. This indicates that a type provider adds generated types to your assembly. (Originally from FSComp.txt:1219)

Named static arguments must come after all unnamed static arguments (Originally from FSComp.txt:1251)

A type provider implemented GetStaticParametersForMethod, but ApplyStaticArgumentsForMethod was not implemented or invalid (Originally from FSComp.txt:1370)

Erased to (Originally from FSComp.txt:1340)

All branches of an 'if' expression must return values implicitly convertible to the type of the first branch, which here is a tuple of length %d of type\n %s \nThis branch returns a tuple of length %d of type\n %s \n (Originally from FSComp.txt:30)

All branches of an 'if' expression must return values implicitly convertible to the type of the first branch, which here is '%s'. This branch returns a value of type '%s'. (Originally from FSComp.txt:29)

System.Environment.Exit did not exit (Originally from FSComp.txt:247)

The treatment of this operator is now handled directly by the F# compiler and its meaning cannot be redefined (Originally from FSComp.txt:248)

The documentation file has no .xml suffix (Originally from FSComp.txt:1162)

is (Originally from FSComp.txt:1498)

(description unavailable...) (Originally from FSComp.txt:1347)

The '!' operator is used to dereference a ref cell. Consider using 'not expr' here. (Originally from FSComp.txt:35)

Delegates are not allowed to have curried signatures (Originally from FSComp.txt:987)

%s var in collection (Originally from FSComp.txt:1278)

%s var in collection %s (outerKey = innerKey). Note that parentheses are required after '%s' (Originally from FSComp.txt:1276)

%s var in collection %s (outerKey = innerKey) into group. Note that parentheses are required after '%s' (Originally from FSComp.txt:1277)

The constraints 'unmanaged' and 'not struct' are inconsistent (Originally from FSComp.txt:326)

None of the types '%s' support the operator '%s'. Consider opening the module 'Microsoft.FSharp.Linq.NullableOperators'. (Originally from FSComp.txt:320)

None of the types '%s' support the operator '%s' (Originally from FSComp.txt:317)

This type parameter cannot be instantiated to 'Nullable'. This is a restriction imposed in order to ensure the meaning of 'null' in some CLI languages is not confusing when used in conjunction with 'Nullable' values. (Originally from FSComp.txt:340)

The type '%s' is not compatible with any of the types %s, arising from the use of a printf-style format string (Originally from FSComp.txt:343)

The type '%s' is not a CLI enum type (Originally from FSComp.txt:337)

The type '%s' is not a CLI delegate type (Originally from FSComp.txt:339)

Type instantiation length mismatch (Originally from FSComp.txt:348)

Type inference problem too complicated (maximum iteration depth reached). Consider adding further type annotations. (Originally from FSComp.txt:312)

The type '%s' uses 'null' as a representation value but a non-null type is expected (Originally from FSComp.txt:1553)

The type '%s' supports 'null' but a non-null type is expected (Originally from FSComp.txt:1554)

The type '%s' has a non-standard delegate type (Originally from FSComp.txt:338)

The type '%s' does not support the operator '%s'. Consider opening the module 'Microsoft.FSharp.Linq.NullableOperators'. (Originally from FSComp.txt:321)

The type '%s' does not support the operator '%s' (Originally from FSComp.txt:318)

The type '%s' does not support the 'equality' constraint because it is a record, union or struct with one or more structural element types which do not support the 'equality' constraint. Either avoid the use of equality with this type, or add the 'StructuralEquality' attribute to the type to determine which field type does not support equality (Originally from FSComp.txt:336)

The type '%s' does not support the 'equality' constraint because it is a function type (Originally from FSComp.txt:335)

The type '%s' does not support the 'equality' constraint because it has the 'NoEquality' attribute (Originally from FSComp.txt:334)

The type '%s' does not support a conversion to the type '%s' (Originally from FSComp.txt:322)

The type '%s' does not support the 'comparison' constraint because it is a record, union or struct with one or more structural element types which do not support the 'comparison' constraint. Either avoid the use of comparison with this type, or add the 'StructuralComparison' attribute to the type to determine which field type does not support comparison (Originally from FSComp.txt:333)

The type '%s' does not support the 'comparison' constraint. For example, it does not support the 'System.IComparable' interface (Originally from FSComp.txt:332)

The type '%s' does not support the 'comparison' constraint because it has the 'NoComparison' attribute (Originally from FSComp.txt:331)

The type '%s' does not have 'null' as a proper value (Originally from FSComp.txt:329)

The declared type parameter '%s' cannot be used here since the type parameter cannot be resolved at compile time (Originally from FSComp.txt:310)

The constraints 'struct' and 'not struct' are inconsistent (Originally from FSComp.txt:325)

The required signature is %s (Originally from FSComp.txt:361)

Argument '%s' doesn't match (Originally from FSComp.txt:387)

Argument at index %d doesn't match (Originally from FSComp.txt:388)

Optional arguments not permitted here (Originally from FSComp.txt:349)

The type '%s' does not have 'null' as a proper value. To create a null value for a Nullable type use 'System.Nullable()'. (Originally from FSComp.txt:330)

The constraints 'struct' and 'null' are inconsistent (Originally from FSComp.txt:328)

The constraints 'null' and 'not null' are inconsistent (Originally from FSComp.txt:1551)

Known type parameter: %s (Originally from FSComp.txt:381)

Known type parameters: %s (Originally from FSComp.txt:382)

Known return type: %s (Originally from FSComp.txt:383)

Known type of argument: %s (Originally from FSComp.txt:379)

Known types of arguments: %s (Originally from FSComp.txt:380)

No overloads match for method '%s'. (Originally from FSComp.txt:378)

No %s member or object constructor named '%s' takes %d arguments. The named argument '%s' doesn't correspond to any argument or settable return property for any overload. (Originally from FSComp.txt:376)

No %s member or object constructor named '%s' takes %d arguments. Note the call to this member also provides %d named arguments. (Originally from FSComp.txt:375)

No %s member or object constructor named '%s' takes %d arguments (Originally from FSComp.txt:374)

Method or object constructor '%s' not found (Originally from FSComp.txt:377)

A unique overload for method '%s' could not be determined based on type information prior to this program point. A type annotation may be needed. (Originally from FSComp.txt:384)

%s is not an instance method (Originally from FSComp.txt:358)

%s is not a static method (Originally from FSComp.txt:357)

The type '%s' has a method '%s' (full name '%s'), but the method is static (Originally from FSComp.txt:323)

The type '%s' has a method '%s' (full name '%s'), but the method is not static (Originally from FSComp.txt:324)

This method expects a CLI 'params' parameter in this position. 'params' is a way of passing a variable number of arguments to a method in languages such as C#. Consider passing an array for this argument (Originally from FSComp.txt:354)

The member or object constructor '%s' takes %d type argument(s) but is here given %d. The required signature is '%s'. (Originally from FSComp.txt:370)

The member or object constructor '%s' requires %d argument(s) but is here given %d unnamed and %d named argument(s). The required signature is '%s'. (Originally from FSComp.txt:366)

The member or object constructor '%s' takes %d argument(s) but is here given %d. The required signature is '%s'. (Originally from FSComp.txt:367)

The member or object constructor '%s' requires %d additional argument(s). The required signature is '%s'. Some names for missing arguments are %s. (Originally from FSComp.txt:365)

The member or object constructor '%s' requires %d argument(s). The required signature is '%s'. Some names for missing arguments are %s. (Originally from FSComp.txt:364)

The member or object constructor '%s' requires %d additional argument(s). The required signature is '%s'. (Originally from FSComp.txt:363)

The member or object constructor '%s' requires %d argument(s). The required signature is '%s'. (Originally from FSComp.txt:362)

The member or object constructor '%s' does not take %d argument(s). An overload was found taking %d arguments. (Originally from FSComp.txt:373)

A member or object constructor '%s' taking %d arguments is not accessible from this code location. All accessible versions of method '%s' take %d arguments. (Originally from FSComp.txt:371)

%s is not a static member (Originally from FSComp.txt:350)

%s is not an instance member (Originally from FSComp.txt:351)

The member or object constructor '%s' is not %s. Private members may only be accessed from within the declaring type. Protected members may only be accessed from an extending type and cannot be accessed from inner lambda expressions. (Originally from FSComp.txt:356)

The member or object constructor '%s' is not %s (Originally from FSComp.txt:355)

The member or object constructor '%s' has no argument or settable return property '%s'. %s. (Originally from FSComp.txt:359)

This indexer expects %d arguments but is here given %d (Originally from FSComp.txt:314)

Incorrect generic instantiation. No %s member named '%s' takes %d generic arguments. (Originally from FSComp.txt:372)

A generic construct requires that the type '%s' is an unmanaged type (Originally from FSComp.txt:342)

A generic construct requires that the type '%s' is a CLI or F# struct type (Originally from FSComp.txt:341)

A generic construct requires that a generic type parameter be known as a struct or reference type. Consider adding a type annotation. (Originally from FSComp.txt:347)

A generic construct requires that the type '%s' have reference semantics, but it does not, i.e. it is a struct (Originally from FSComp.txt:344)

A generic construct requires that the type '%s' have a public default constructor (Originally from FSComp.txt:346)

A generic construct requires that the type '%s' be non-abstract (Originally from FSComp.txt:345)

'%s' does not support the type '%s', because the latter lacks the required (real or built-in) member '%s' (Originally from FSComp.txt:319)

Expected arguments to an instance member (Originally from FSComp.txt:313)

Expecting a type supporting the operator '%s' but given a tuple type (Originally from FSComp.txt:316)

Expecting a type supporting the operator '%s' but given a function type. You may be missing an argument to a function. (Originally from FSComp.txt:315)

The object constructor '%s' takes %d argument(s) but is here given %d. The required signature is '%s'. If some of the arguments are meant to assign values to properties, consider separating those arguments with a comma (','). (Originally from FSComp.txt:369)

The object constructor '%s' takes %d argument(s) but is here given %d. The required signature is '%s'. (Originally from FSComp.txt:368)

The object constructor '%s' has no argument or settable return property '%s'. %s. (Originally from FSComp.txt:360)

The constraints 'comparison' and 'delegate' are inconsistent (Originally from FSComp.txt:327)

This code is less generic than indicated by its annotations. A unit-of-measure specified using '_' has been determined to be '1', i.e. dimensionless. Consider making the code generic, or removing the use of '_'. (Originally from FSComp.txt:311)

Candidates:\n%s (Originally from FSComp.txt:385)

Available overloads:\n%s (Originally from FSComp.txt:386)

The argument types don't match (Originally from FSComp.txt:353)

Argument length mismatch (Originally from FSComp.txt:352)

Quotations cannot contain expressions that set union case fields (Originally from FSComp.txt:302)

Quotations cannot contain expressions that set fields in exception values (Originally from FSComp.txt:303)

Quotations cannot contain expressions that require byref pointers (Originally from FSComp.txt:304)

Quotations cannot contain expressions that fetch union case indexes (Originally from FSComp.txt:301)

Quotations cannot contain this kind of type (Originally from FSComp.txt:309)

Quotations cannot contain this kind of pattern match (Originally from FSComp.txt:307)

Quotations cannot contain this kind of constant (Originally from FSComp.txt:306)

Quotations cannot contain expressions that fetch static fields (Originally from FSComp.txt:298)

Quotations cannot contain object expressions (Originally from FSComp.txt:296)

Quotations cannot contain inline assembly code or pattern matching on arrays (Originally from FSComp.txt:299)

Quotations cannot contain function definitions that are inferred or declared to be generic. Consider adding some type constraints to make this a valid quoted expression. (Originally from FSComp.txt:295)

Quotations cannot contain uses of generic expressions (Originally from FSComp.txt:294)

Quotations cannot contain descending for loops (Originally from FSComp.txt:300)

Quotations cannot contain array pattern matching (Originally from FSComp.txt:308)

Quotations cannot contain expressions that take the address of a field (Originally from FSComp.txt:297)

Quotations cannot contain expressions that make member constraint calls, or uses of operators that implicitly resolve to a member constraint call (Originally from FSComp.txt:305)

A quotation may not involve an assignment to or taking the address of a captured local variable (Originally from FSComp.txt:1337)

Inner generic functions are not permitted in quoted expressions. Consider adding some type constraints until this function is no longer generic. (Originally from FSComp.txt:1127)

The variable '%s' is bound in a quotation but is used as part of a spliced expression. This is not permitted since it may escape its scope. (Originally from FSComp.txt:293)

The dependency manager extension %s could not be loaded. Message: %s (Originally from FSComp.txt:1532)

Key container signing is not supported on this platform. (Originally from FSComp.txt:1689)

The 'AssemblyKeyNameAttribute' has been deprecated. Use 'AssemblyKeyFileAttribute' instead. (Originally from FSComp.txt:1688)

The conversion from %s to %s is a compile-time safe upcast, not a downcast. Consider using the :> (upcast) operator instead of the :?> (downcast) operator. (Originally from FSComp.txt:1390)

The conversion from %s to %s is a compile-time safe upcast, not a downcast. Consider using 'upcast' instead of 'downcast'. (Originally from FSComp.txt:1389)

A ';' is used to separate field values in records. Consider replacing ',' with ';'. (Originally from FSComp.txt:34)

The variable '%s' is used in an invalid way (Originally from FSComp.txt:252)

The type of a field using the 'DefaultValue' attribute must admit default initialization, i.e. have 'null' as a proper value or be a struct type whose fields all admit default initialization. You can use 'DefaultValue(false)' to disable this check (Originally from FSComp.txt:291)

The value '%s' is unused (Originally from FSComp.txt:1078)

The recursive object reference '%s' is unused. The presence of a recursive object reference adds runtime initialization checks to members in this and derived types. Consider removing this recursive object reference. (Originally from FSComp.txt:1079)

default augmentation of the union case (Originally from FSComp.txt:277)

compiled form of the union case (Originally from FSComp.txt:276)

The type '%s' is less accessible than the value, member or type '%s' it is used in. (Originally from FSComp.txt:253)

A type variable has been constrained by multiple different class types. A type variable may only have one class constraint. (Originally from FSComp.txt:1348)

The TailCall attribute should only be applied to recursive functions. (Originally from FSComp.txt:1779)

'System.Void' can only be used as 'typeof<System.Void>' in F# (Originally from FSComp.txt:254)

Struct members cannot return the address of fields of the struct by reference (Originally from FSComp.txt:1519)

Object expressions cannot implement interfaces with static abstract members or declare static members. (Originally from FSComp.txt:1778)

Classes cannot contain static abstract members. (Originally from FSComp.txt:1785)

A static abstract non-virtual interface member should only be called via type parameter (for example: 'T.%s). (Originally from FSComp.txt:1784)

Expression-splicing operators may only be used within quotations (Originally from FSComp.txt:257)

A method return type would contain byrefs which is not permitted (Originally from FSComp.txt:269)

[<ReflectedDefinition>] terms cannot contain uses of the prefix splice operator '%%' (Originally from FSComp.txt:274)

A protected member is called or 'base' is being used. This is only allowed in the direct implementation of members since they could escape their object scope. (Originally from FSComp.txt:249)

The property '%s' has the same name as a method in type '%s'. (Originally from FSComp.txt:278)

The property '%s' has the same name as another property in type '%s', but one takes indexer arguments and the other does not. You may be missing an indexer argument to one of your properties. (Originally from FSComp.txt:280)

The member or function '%s' has the 'TailCallAttribute' attribute, but is not being used in a tail recursive way. (Originally from FSComp.txt:1759)

This value can't be assigned because the target '%s' may refer to non-stack-local memory, while the expression being assigned is assessed to potentially refer to stack-local memory. This is to help prevent pointers to stack-bound memory escaping their scope. (Originally from FSComp.txt:1516)

The Span or IsByRefLike variable '%s' cannot be used at this point. This is to ensure the address of the local value does not escape its scope. (Originally from FSComp.txt:1521)

A Span or IsByRefLike value returned from the expression cannot be used at ths point. This is to ensure the address of the local value does not escape its scope. (Originally from FSComp.txt:1522)

ReflectedDefinitionAttribute may not be applied to an instance member on a struct type, because the instance member takes an implicit 'this' byref parameter (Originally from FSComp.txt:1121)

First-class uses of the expression-splicing operator are not permitted (Originally from FSComp.txt:258)

First-class uses of the 'reraise' function is not permitted (Originally from FSComp.txt:260)

Using the 'nameof' operator as a first-class function value is not permitted. (Originally from FSComp.txt:1535)

First-class uses of the address-of operators are not permitted (Originally from FSComp.txt:259)

Type '%s' is illegal because in byref<T>, T cannot contain byref types. (Originally from FSComp.txt:1320)

The function or method call cannot be used at this point, because one argument that is a byref of a non-stack-local Span or IsByRefLike type is used with another argument that is a stack-local Span or IsByRefLike type. This is to ensure the address of the local value does not escape its scope. (Originally from FSComp.txt:1520)

The type abbreviation contains byrefs. This is not permitted by F#. (Originally from FSComp.txt:292)

The byref typed value '%s' cannot be used at this point (Originally from FSComp.txt:261)

A byref typed value would be stored here. Top-level let-bound byref values are not permitted. (Originally from FSComp.txt:273)

The address of a value returned from the expression cannot be used at this point. This is to ensure the address of the local value does not escape its scope. (Originally from FSComp.txt:1515)

The address of the variable '%s' or a related expression cannot be used at this point. This is to ensure the address of the local value does not escape its scope. (Originally from FSComp.txt:1400)

The address of the static field '%s' cannot be used at this point (Originally from FSComp.txt:265)

The address of the variable '%s' cannot be used at this point (Originally from FSComp.txt:264)

The address of an array element cannot be used at this point (Originally from FSComp.txt:267)

The address of the field '%s' cannot be used at this point (Originally from FSComp.txt:266)

This type implements the same interface at different generic instantiations '%s' and '%s'. This is not permitted in this version of F#. (Originally from FSComp.txt:290)

The member '%s' is used in an invalid way. A use of '%s' has been inferred prior to its definition at or near '%s'. This is an invalid forward reference. (Originally from FSComp.txt:272)

'base' values may only be used to make direct calls to the base implementations of overridden members (Originally from FSComp.txt:262)

The function or method has an invalid return type '%s'. This is not permitted by the rules of Common IL. (Originally from FSComp.txt:1556)

The parameter '%s' has an invalid type '%s'. This is not permitted by the rules of Common IL. (Originally from FSComp.txt:1555)

Invalid custom attribute value (not a constant or literal) (Originally from FSComp.txt:270)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Instance members are not allowed. (Originally from FSComp.txt:1742)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Instance let bindings are not allowed. (Originally from FSComp.txt:1743)

The use of 'incr' from the F# library is deprecated. See https://aka.ms/fsharp-refcell-ops. For example, please change 'incr cell' to 'cell.Value <- cell.Value + 1'. (Originally from FSComp.txt:1655)

The use of '!' from the F# library is deprecated. See https://aka.ms/fsharp-refcell-ops. For example, please change '!cell' to 'cell.Value'. (Originally from FSComp.txt:1653)

The use of 'decr' from the F# library is deprecated. See https://aka.ms/fsharp-refcell-ops. For example, please change 'decr cell' to 'cell.Value <- cell.Value - 1'. (Originally from FSComp.txt:1656)

The use of ':=' from the F# library is deprecated. See https://aka.ms/fsharp-refcell-ops. For example, please change 'cell := expr' to 'cell.Value <- expr'. (Originally from FSComp.txt:1654)

An indexed property's getter and setter must have the same type. Property '%s' has getter of type '%s' but setter of type '%s'. (Originally from FSComp.txt:1770)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Implementing interfaces is not allowed. (Originally from FSComp.txt:1744)

The property '%s' of type '%s' has a getter and a setter that do not match. If one is abstract then the other must be as well. (Originally from FSComp.txt:279)

A property's getter and setter must have the same type. Property '%s' has getter of type '%s' but setter of type '%s'. (Originally from FSComp.txt:1357)

The type of a first-class function cannot contain byrefs (Originally from FSComp.txt:268)

Feature '%s' requires the F# library for language version %s or greater. (Originally from FSComp.txt:1563)

Feature '%s' is not supported by target runtime. (Originally from FSComp.txt:1565)

Feature '%s' is not available in F# %s. Please use language version %s or greater. (Originally from FSComp.txt:1564)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Explicit field declarations are not allowed. (Originally from FSComp.txt:1746)

A type instantiation involves a byref type. This is not permitted by the rules of Common IL. (Originally from FSComp.txt:255)

Calls to 'reraise' may only occur directly in a handler of a try-with (Originally from FSComp.txt:256)

A function labeled with the 'EntryPointAttribute' attribute must be the last declaration in the last file in the compilation sequence. (Originally from FSComp.txt:275)

Duplicate parameter. The parameter '%s' has been used more that once in this method. (Originally from FSComp.txt:1737)

Duplicate property. The property '%s' has the same name and signature as another property in type '%s' once tuples, functions, units of measure and/or provided types are erased. (Originally from FSComp.txt:287)

Duplicate property. The property '%s' has the same name and signature as another property in type '%s'. (Originally from FSComp.txt:286)

Duplicate method. The method '%s' has the same name and signature as another method in type '%s' once tuples, functions, units of measure and/or provided types are erased. (Originally from FSComp.txt:283)

Duplicate method. The abstract method '%s' has the same name and signature as an abstract method in an inherited type once tuples, functions, units of measure and/or provided types are erased. (Originally from FSComp.txt:289)

Duplicate method. The abstract method '%s' has the same name and signature as an abstract method in an inherited type. (Originally from FSComp.txt:288)

The method '%s' has curried arguments but has the same name as another method in type '%s'. Methods with curried arguments cannot be overloaded. Consider using a method taking tupled arguments. (Originally from FSComp.txt:284)

Duplicate method. The method '%s' has the same name and signature as another method in type '%s'. (Originally from FSComp.txt:282)

This construct is deprecated. Sequence expressions should be of the form 'seq { ... }' (Originally from FSComp.txt:1801)

Methods with curried arguments cannot declare 'out', 'ParamArray', 'optional', 'ReflectedDefinition', 'byref', 'CallerLineNumber', 'CallerMemberName', or 'CallerFilePath' arguments (Originally from FSComp.txt:285)

This expression is an anonymous record, use {|...|} instead of {...}. (Originally from FSComp.txt:1767)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Constructor with arguments is not allowed. (Originally from FSComp.txt:1740)

A type would store a byref typed value. This is not permitted by Common IL. (Originally from FSComp.txt:281)

The byref-typed variable '%s' is used in an invalid way. Byrefs cannot be captured by closures or passed to inner functions. (Originally from FSComp.txt:250)

The 'base' keyword is used in an invalid way. Base calls cannot be used in closures. Consider using a private member to make base calls. (Originally from FSComp.txt:251)

%s should not be aliased. (Originally from FSComp.txt:1749)

The attribute type '%s' has 'AllowMultiple=false'. Multiple instances of this attribute cannot be attached to a single language element. (Originally from FSComp.txt:271)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Additional constructor is not allowed. (Originally from FSComp.txt:1741)

If a type uses both [<Sealed>] and [<AbstractClass>] attributes, it means it is static. Abstract member declarations are not allowed. (Originally from FSComp.txt:1745)

Redundant arguments are being ignored in function '%s'. Expected %d but got %d arguments. (Originally from FSComp.txt:1379)

Type inference caused an inference type variable to escape its scope. Consider adding type annotations to make your code less generic. (Originally from FSComp.txt:1378)

Type inference caused the type variable %s to escape its scope. Consider adding an explicit type parameter declaration or adjusting your code to be less generic. (Originally from FSComp.txt:1377)

Lowercase literal '%s' is being shadowed by a new pattern with the same name. Only uppercase and module-prefixed literals can be used as named patterns. (Originally from FSComp.txt:1380)

The operator '%s' cannot be resolved. Consider opening the module 'Microsoft.FSharp.Linq.NullableOperators'. (Originally from FSComp.txt:1351)

Unrecognized option: '%s'. Use '--help' to learn about recognized command line options. (Originally from FSComp.txt:79)

The non-generic type '%s' does not expect any type arguments, but here is given %d type argument(s) (Originally from FSComp.txt:36)

Filename '%s' contains invalid character '%s' (Originally from FSComp.txt:1125)

The signature file '%s' does not have a corresponding implementation file. If an implementation file exists then check the 'module' and 'namespace' declarations in the signature and implementation files match. (Originally from FSComp.txt:76)

A signature for the file or module '%s' has already been specified (Originally from FSComp.txt:73)

The search directory '%s' could not be found (Originally from FSComp.txt:50)

Problem with filename '%s': %s (Originally from FSComp.txt:46)

Problem reading assembly '%s': %s (Originally from FSComp.txt:1344)

The '--pdb' option requires the '--debug' option to be used (Originally from FSComp.txt:48)

Option requires parameter: %s (Originally from FSComp.txt:60)

No inputs specified (Originally from FSComp.txt:47)

This file contains multiple declarations of the form 'module SomeNamespace.SomeModule'. Only one declaration of this form is permitted in a file. Change your file to use an initial namespace declaration and/or use 'module ModuleName = ...' to define your modules. (Originally from FSComp.txt:59)

Files in libraries or multiple-file applications must begin with a namespace or module declaration, e.g. 'namespace SomeNamespace.SubNamespace' or 'module SomeNamespace.SomeModule'. Only the last source file of an application may omit such a declaration. (Originally from FSComp.txt:57)

Invalid warning number '%s' (Originally from FSComp.txt:43)

Invalid version string '%s' (Originally from FSComp.txt:44)

Invalid version file '%s' (Originally from FSComp.txt:45)

The file extension of '%s' is not recognized. Source files must have extension .fs, .fsi, .fsx or .fsscript (Originally from FSComp.txt:63)

The file extension of '%s' is not recognized. Source files must have extension .fs, .fsi, .fsx or .fsscript. To enable the deprecated use of .ml or .mli extensions, use '--langversion:5.0' and '--mlcompatibility'. (Originally from FSComp.txt:64)

The file extension of '%s' is not recognized. Source files must have extension .fs, .fsi, .fsx, .fsscript, .ml or .mli. (Originally from FSComp.txt:62)

The search directory '%s' is invalid (Originally from FSComp.txt:49)

Unrecognized privacy setting '%s' for managed resource, valid options are 'public' and 'private' (Originally from FSComp.txt:53)

Invalid module or namespace name (Originally from FSComp.txt:80)

Invalid directive. Expected '#time', '#time \"on\"' or '#time \"off\"'. (Originally from FSComp.txt:71)

Invalid directive. Expected '#r \"<file-or-assembly>\"'. (Originally from FSComp.txt:69)

Invalid directive. Expected '#load \"<file>\" ... \"<file>\"'. (Originally from FSComp.txt:70)

Invalid directive. Expected '#I \"<path>\"'. (Originally from FSComp.txt:68)

'%s' is not a valid filename (Originally from FSComp.txt:51)

'%s' is not a valid assembly name (Originally from FSComp.txt:52)

The declarations in this file will be placed in an implicit module '%s' based on the file name '%s'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file. (Originally from FSComp.txt:56)

An implementation of file or module '%s' has already been given. Compilation order is significant in F# because of type inference. You may need to adjust the order of your files to place the signature file before the implementation. In Visual Studio files are type-checked in the order they appear in the project file, which can be edited manually or adjusted using the solution explorer. (Originally from FSComp.txt:74)

An implementation of the file or module '%s' has already been given (Originally from FSComp.txt:75)

FSharp.Core.sigdata not found alongside FSharp.Core. File expected in %s. Consider upgrading to a more recent version of FSharp.Core, where this file is no longer be required. (Originally from FSComp.txt:1123)

File '%s' not found alongside FSharp.Core. File expected in %s. Consider upgrading to a more recent version of FSharp.Core, where this file is no longer be required. (Originally from FSComp.txt:1124)

Error opening binary file '%s': %s (Originally from FSComp.txt:66)

The source file '%s' (at position %d/%d) already appeared in the compilation list (at position %d/%d). Please verify that it is included only once in the project file. (Originally from FSComp.txt:1739)

Directives inside modules are ignored (Originally from FSComp.txt:72)

The F#-compiled DLL '%s' needs to be recompiled to be used with this version of F# (Originally from FSComp.txt:67)

Could not resolve assembly '%s' (Originally from FSComp.txt:65)

Source file '%s' could not be found (Originally from FSComp.txt:61)

The file extensions '.ml' and '.mli' are for ML compatibility (Originally from FSComp.txt:1111)

Unable to read assembly '%s' (Originally from FSComp.txt:54)

Assembly resolution failure at or near this location (Originally from FSComp.txt:55)

'%s' is not a valid integer argument (Originally from FSComp.txt:77)

'%s' is not a valid floating point argument (Originally from FSComp.txt:78)

A type cannot have both the 'ReferenceEquality' and 'StructuralEquality' or 'StructuralComparison' attributes (Originally from FSComp.txt:223)

The 'StructuralEquality' attribute must be used in conjunction with the 'NoComparison' or 'StructuralComparison' attributes (Originally from FSComp.txt:222)

The 'StructuralComparison' attribute must be used in conjunction with the 'StructuralEquality' attribute (Originally from FSComp.txt:221)

A type with attribute 'ReferenceEquality' cannot have an explicit implementation of 'Object.Equals(obj)', 'System.IEquatable<_>' or 'System.Collections.IStructuralEquatable' (Originally from FSComp.txt:225)

Only record, union, exception and struct types may be augmented with the 'ReferenceEquality', 'StructuralEquality' and 'StructuralComparison' attributes (Originally from FSComp.txt:224)

The 'ReferenceEquality' attribute cannot be used on structs. Consider using the 'StructuralEquality' attribute instead, or implement an override for 'System.Object.Equals(obj)'. (Originally from FSComp.txt:218)

The 'NoEquality' attribute must be used in conjunction with the 'NoComparison' attribute (Originally from FSComp.txt:220)

A type with attribute 'NoEquality' should not usually have an explicit implementation of 'Object.Equals(obj)'. Disable this warning if this is intentional for interoperability purposes (Originally from FSComp.txt:228)

A type with attribute 'NoComparison' should not usually have an explicit implementation of 'System.IComparable', 'System.IComparable<_>' or 'System.Collections.IStructuralComparable'. Disable this warning if this is intentional for interoperability purposes (Originally from FSComp.txt:229)

This type uses an invalid mix of the attributes 'NoEquality', 'ReferenceEquality', 'StructuralEquality', 'NoComparison' and 'StructuralComparison' (Originally from FSComp.txt:219)

A type with attribute 'CustomEquality' must have an explicit implementation of at least one of 'Object.Equals(obj)', 'System.IEquatable<_>' or 'System.Collections.IStructuralEquatable' (Originally from FSComp.txt:226)

The 'CustomEquality' attribute must be used in conjunction with the 'NoComparison' or 'CustomComparison' attributes (Originally from FSComp.txt:230)

A type with attribute 'CustomComparison' must have an explicit implementation of at least one of 'System.IComparable' or 'System.Collections.IStructuralComparable' (Originally from FSComp.txt:227)

Error while parsing embedded IL type (Originally from FSComp.txt:215)

Error while parsing embedded IL (Originally from FSComp.txt:214)

Invalid expression on left of assignment (Originally from FSComp.txt:217)

This indexer notation has been removed from the F# language (Originally from FSComp.txt:216)

All elements of an array must be implicitly convertible to the type of the first element, which here is a tuple of length %d of type\n %s \nThis element is a tuple of length %d of type\n %s \n (Originally from FSComp.txt:25)

All elements of an array must be implicitly convertible to the type of the first element, which here is '%s'. This element has type '%s'. (Originally from FSComp.txt:24)

Interpolated string contains untyped identifiers. Adding typed format specifiers is recommended. (Originally from FSComp.txt:1768)

Add . for indexer access. (Originally from FSComp.txt:21)

Active pattern '%s' is not a function (Originally from FSComp.txt:1114)

Active pattern '%s' has a result type containing type variables that are not determined by the input. The common cause is a when a result case is not mentioned, e.g. 'let (|A|B|) (x:int) = A x'. This can be fixed with a type constraint, e.g. 'let (|A|B|) (x:int) : Choice<int,unit> = A x' (Originally from FSComp.txt:1115)

The mutable local '%s' is implicitly allocated as a reference cell because it has been captured by a closure. This warning is for informational purposes only to indicate where implicit allocations are performed. (Originally from FSComp.txt:1369)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is virtual and the other isn't (Originally from FSComp.txt:123)

Nullness warning: Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe types differ in their nullness annotations (Originally from FSComp.txt:115)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe types differ (Originally from FSComp.txt:114)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is static and the other isn't (Originally from FSComp.txt:122)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe compiled representation of this method is as a static member but the signature indicates its compiled representation is as an instance member (Originally from FSComp.txt:128)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe respective type parameter counts differ (Originally from FSComp.txt:113)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is marked as an override and the other isn't (Originally from FSComp.txt:126)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is a type function and the other is not. The signature requires explicit type parameters if they are present in the implementation. (Originally from FSComp.txt:112)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is a constructor/property and the other is not (Originally from FSComp.txt:127)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe names differ (Originally from FSComp.txt:106)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe literal constant values and/or attributes differ (Originally from FSComp.txt:111)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe compiled representation of this method is as an instance member, but the signature indicates its compiled representation is as a static member (Originally from FSComp.txt:129)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe inline flags differ (Originally from FSComp.txt:110)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe number of generic parameters in the signature and implementation differ (the signature declares %s but the implementation declares %s (Originally from FSComp.txt:118)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe generic parameters in the signature and implementation have different kinds. Perhaps there is a missing [<Measure>] attribute. (Originally from FSComp.txt:119)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is final and the other isn't (Originally from FSComp.txt:125)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is an extension member and the other is not (Originally from FSComp.txt:116)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe CLI member names differ (Originally from FSComp.txt:121)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe display names differ (Originally from FSComp.txt:108)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe compiled names differ (Originally from FSComp.txt:107)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe mutability attributes differ (Originally from FSComp.txt:105)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nAn arity was not inferred for this value (Originally from FSComp.txt:117)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe arities in the signature and implementation differ. The signature specifies that '%s' is function definition or lambda expression accepting at least %s argument(s), but the implementation is a computed function value. To declare that a computed function value is a permitted implementation simply parenthesize its type in the signature, e.g.\n\tval %s: int -> (int -> int)\ninstead of\n\tval %s: int -> int -> int. (Originally from FSComp.txt:120)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nThe accessibility specified in the signature is more than that specified in the implementation (Originally from FSComp.txt:109)

Module '%s' contains\n %s \nbut its signature specifies\n %s \nOne is abstract and the other isn't (Originally from FSComp.txt:124)

The module contains the constructor\n %s \nbut its signature specifies\n %s \nThe types of the fields differ (Originally from FSComp.txt:163)

The module contains the constructor\n %s \nbut its signature specifies\n %s \nThe names differ (Originally from FSComp.txt:161)

The module contains the constructor\n %s \nbut its signature specifies\n %s \nThe respective number of data fields differ (Originally from FSComp.txt:162)

The module contains the constructor\n %s \nbut its signature specifies\n %s \nthe accessibility specified in the signature is more than that specified in the implementation (Originally from FSComp.txt:164)

Invalid recursive reference to an abstract slot (Originally from FSComp.txt:976)

Nullness warning: The module contains the field\n %s \nbut its signature specifies\n %s \nThe types differ in their nullness annotations (Originally from FSComp.txt:171)

The module contains the field\n %s \nbut its signature specifies\n %s \nThe types differ (Originally from FSComp.txt:170)

The module contains the field\n %s \nbut its signature specifies\n %s \nThe 'static' modifiers differ (Originally from FSComp.txt:167)

The module contains the field\n %s \nbut its signature specifies\n %s \nThe names differ (Originally from FSComp.txt:165)

The module contains the field\n %s \nbut its signature specifies\n %s \nThe 'mutable' modifiers differ (Originally from FSComp.txt:168)

The module contains the field\n %s \nbut its signature specifies\n %s \nThe 'literal' modifiers differ (Originally from FSComp.txt:169)

The module contains the field\n %s \nbut its signature specifies\n %s \nthe accessibility specified in the signature is more than that specified in the implementation (Originally from FSComp.txt:166)

The exception definitions are not compatible because the exception abbreviations in the signature and implementation differ. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:189)

The exception definitions are not compatible because a CLI exception mapping is being hidden by a signature. The exception mapping must be visible to other modules. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s (Originally from FSComp.txt:186)

The exception definitions are not compatible because the order of the fields is different in the signature and implementation. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:193)

The exception definitions are not compatible because the field '%s' was required by the signature but was not specified by the implementation. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:191)

The exception definitions are not compatible because the field '%s' was present in the implementation but not in the signature. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:192)

The exception definitions are not compatible because the exception declarations differ. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:190)

The exception definitions are not compatible because the CLI representations differ. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s (Originally from FSComp.txt:187)

The exception definitions are not compatible because the exception abbreviation is being hidden by the signature. The abbreviation must be visible to other CLI languages. Consider making the abbreviation visible in the signature. The module contains the exception definition\n %s \nbut its signature specifies\n\t%s. (Originally from FSComp.txt:188)

The %s definitions for type '%s' in the signature and implementation are not compatible because the types have different base types (Originally from FSComp.txt:142)

The %s definitions for type '%s' in the signature and implementation are not compatible because a type representation is being hidden by a signature (Originally from FSComp.txt:148)

The %s definitions for type '%s' in the signature and implementation are not compatible because the types are of different kinds (Originally from FSComp.txt:149)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature says this type may use nulls as an extra value but the implementation does not (Originally from FSComp.txt:137)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature says this type may use nulls as a representation but the implementation does not (Originally from FSComp.txt:136)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature is an abstract class but the implementation is not. Consider adding the [<AbstractClass>] attribute to the implementation. (Originally from FSComp.txt:141)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature defines the %s '%s' but the implementation does not (or does, but not in the same order) (Originally from FSComp.txt:144)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature declares a %s while the implementation declares a %s (Originally from FSComp.txt:158)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature has an abbreviation while the implementation does not (Originally from FSComp.txt:160)

The %s definitions for type '%s' in the signature and implementation are not compatible because the representations differ (Originally from FSComp.txt:151)

The %s definitions for type '%s' in the signature and implementation are not compatible because the respective type parameter counts differ (Originally from FSComp.txt:131)

The %s definitions for type '%s' in the signature and implementation are not compatible because the number of %ss differ (Originally from FSComp.txt:143)

The %s definitions in the signature and implementation are not compatible because the names differ. The type is called '%s' in the signature file but '%s' in implementation. (Originally from FSComp.txt:130)

The %s definitions for type '%s' in the signature and implementation are not compatible because the signature requires that the type supports the interface %s but the interface has not been implemented (Originally from FSComp.txt:133)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation type is sealed but the signature implies it is not. Consider adding the [<Sealed>] attribute to the signature. (Originally from FSComp.txt:138)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation says this type may use nulls as an extra value but the signature does not (Originally from FSComp.txt:135)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation says this type may use nulls as a representation but the signature does not (Originally from FSComp.txt:134)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation type is not sealed but signature implies it is. Consider adding the [<Sealed>] attribute to the implementation. (Originally from FSComp.txt:139)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation is an abstract class but the signature is not. Consider adding the [<AbstractClass>] attribute to the signature. (Originally from FSComp.txt:140)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation defines a struct but the signature defines a type with a hidden representation (Originally from FSComp.txt:146)

The %s definitions for type '%s' in the signature and implementation are not compatible because the implementation defines the %s '%s' but the signature does not (or does, but not in the same order) (Originally from FSComp.txt:145)

The %s definitions for type '%s' in the signature and implementation are not compatible because the IL representations differ (Originally from FSComp.txt:150)

The %s definitions for type '%s' in the signature and implementation are not compatible because the field %s was present in the implementation but not in the signature (Originally from FSComp.txt:152)

The %s definitions for type '%s' in the signature and implementation are not compatible because the field %s was required by the signature but was not specified by the implementation (Originally from FSComp.txt:154)

The %s definitions for type '%s' in the signature and implementation are not compatible because the order of the fields is different in the signature and implementation (Originally from FSComp.txt:153)

The %s definitions for type '%s' in the signature and implementation are not compatible because the field '%s' was present in the implementation but not in the signature. Struct types must now reveal their fields in the signature for the type, though the fields may still be labelled 'private' or 'internal'. (Originally from FSComp.txt:155)

The %s definitions for type '%s' in the signature and implementation are not compatible because a CLI type representation is being hidden by a signature (Originally from FSComp.txt:147)

The %s definitions for type '%s' in the signature and implementation are not compatible because the accessibility specified in the signature is more than that specified in the implementation (Originally from FSComp.txt:132)

The %s definitions for type '%s' in the signature and implementation are not compatible because the abstract member '%s' was present in the implementation but not in the signature (Originally from FSComp.txt:157)

The %s definitions for type '%s' in the signature and implementation are not compatible because the abstract member '%s' was required by the signature but was not specified by the implementation (Originally from FSComp.txt:156)

The %s definitions for type '%s' in the signature and implementation are not compatible because an abbreviation is being hidden by a signature. The abbreviation must be visible to other CLI languages. Consider making the abbreviation visible in the signature. (Originally from FSComp.txt:159)

The default value does not have the same type as the argument. The DefaultParameterValue attribute and any Optional attribute will be ignored. Note: 'null' needs to be annotated with the correct type, e.g. 'DefaultParameterValue(null:obj)'. (Originally from FSComp.txt:1402)

The CallerMemberNameAttribute applied to parameter '%s' will have no effect. It is overridden by the CallerFilePathAttribute. (Originally from FSComp.txt:1397)

Stopped due to error\n (Originally from Interactive\FSIstrings.txt:2)

Prevents references from being locked by the F# Interactive process (%s by default) (Originally from Interactive\FSIstrings.txt:56)

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

Use the given file on startup as initial input (Originally from Interactive\FSIstrings.txt:11)

Usage: %s <options> [script.fsx [<arguments>]] (Originally from Interactive\FSIstrings.txt:3)

- Unexpected ThreadAbortException (Ctrl-C) during event handling: Trying to restart... (Originally from Interactive\FSIstrings.txt:51)

--> Timing now on (Originally from Interactive\FSIstrings.txt:49)

--> Timing now off (Originally from Interactive\FSIstrings.txt:50)

Real: %s, CPU: %s, GC %s (Originally from Interactive\FSIstrings.txt:25)

gen (Originally from Interactive\FSIstrings.txt:26)

Treat remaining arguments as command line arguments, accessed using fsi.CommandLineArgs (Originally from Interactive\FSIstrings.txt:13)

Support TAB completion in console (%s by default) (Originally from Interactive\FSIstrings.txt:18)

Suppress fsi writing to stdout (Originally from Interactive\FSIstrings.txt:17)

F# Interactive for F# %s (Originally from Interactive\FSIstrings.txt:55)

Microsoft (R) F# Interactive version %s (Originally from Interactive\FSIstrings.txt:54)

Operation failed. The error text has been printed in the error stream. To return the corresponding FSharpDiagnostic use the EvalInteractionNonThrowing, EvalScriptNonThrowing or EvalExpressionNonThrowing (Originally from Interactive\FSIstrings.txt:58)

Operation could not be completed due to earlier error (Originally from Interactive\FSIstrings.txt:57)

Emit multiple assemblies (%s by default) (Originally from Interactive\FSIstrings.txt:59)

- MISCELLANEOUS - (Originally from Interactive\FSIstrings.txt:8)

Loading (Originally from Interactive\FSIstrings.txt:40)

#load the given file on startup (Originally from Interactive\FSIstrings.txt:12)

Warning: line too long, ignoring some characters\n (Originally from Interactive\FSIstrings.txt:24)

- LANGUAGE - (Originally from Interactive\FSIstrings.txt:7)

'%s' is not a valid assembly name (Originally from Interactive\FSIstrings.txt:22)

See '%s' for options (Originally from Interactive\FSIstrings.txt:39)

F# Interactive command line options: (Originally from Interactive\FSIstrings.txt:38)

F# Interactive directives: (Originally from Interactive\FSIstrings.txt:28)

Toggle timing on/off (Originally from Interactive\FSIstrings.txt:33)

Reference (dynamically load) the given DLL (Originally from Interactive\FSIstrings.txt:29)

Exit (Originally from Interactive\FSIstrings.txt:36)

Load the given file(s) as if compiled and referenced (Originally from Interactive\FSIstrings.txt:32)

Display documentation for an identifier, e.g. #help \"List.map\";; (Originally from Interactive\FSIstrings.txt:35)

Display help (Originally from Interactive\FSIstrings.txt:34)

Clear screen (Originally from Interactive\FSIstrings.txt:37)

Add the given search path for referenced DLLs (Originally from Interactive\FSIstrings.txt:30)

Include package source uri when searching for packages (Originally from Interactive\FSIstrings.txt:31)

\n- Interrupt\n (Originally from Interactive\FSIstrings.txt:41)

- INPUT FILES - (Originally from Interactive\FSIstrings.txt:4)

Display this usage message (Short form: -?) (Originally from Interactive\FSIstrings.txt:14)

Execute interactions on a Windows Forms event loop (%s by default) (Originally from Interactive\FSIstrings.txt:16)

Failed to resolve assembly '%s' (Originally from Interactive\FSIstrings.txt:52)

\n- Exit...\n (Originally from Interactive\FSIstrings.txt:42)

Exit fsi after loading the files or running the .fsx script given on the command line (Originally from Interactive\FSIstrings.txt:15)

Exception raised when starting remoting server.\n%s (Originally from Interactive\FSIstrings.txt:10)

\n\nException raised during pretty printing.\nPlease report this so it can be fixed.\nTrace: %s\n (Originally from Interactive\FSIstrings.txt:27)

- ERRORS AND WARNINGS - (Originally from Interactive\FSIstrings.txt:6)

Functions with [<EntryPoint>] are not invoked in FSI. '%s' was not invoked. Execute '%s <args>' in order to invoke '%s' with the appropriate string array of command line arguments. (Originally from Interactive\FSIstrings.txt:60)

Emit debug information in quotations (%s by default) (Originally from Interactive\FSIstrings.txt:19)

Directory '%s' doesn't exist (Originally from Interactive\FSIstrings.txt:23)

--> Referenced '%s' (an assembly with a different timestamp has already been referenced from this location, reset fsi to load the updated assembly) (Originally from Interactive\FSIstrings.txt:47)

--> Referenced '%s' (file may be locked by F# Interactive process) (Originally from Interactive\FSIstrings.txt:46)

--> Referenced '%s' (Originally from Interactive\FSIstrings.txt:45)

--> Added '%s' to library include path (Originally from Interactive\FSIstrings.txt:48)

See https://learn.microsoft.com/dotnet/fsharp/language-reference/fsharp-interactive-options for more details. (Originally from Interactive\FSIstrings.txt:61)

Failed to install ctrl-c handler - Ctrl-C handling will not be available. Error was:\n\t%s (Originally from Interactive\FSIstrings.txt:44)

A problem occurred starting the F# Interactive process. This may be due to a known problem with background process console support for Unicode-enabled applications on some Windows systems. Try selecting Tools->Options->F# Interactive for Visual Studio and enter '--fsi-server-no-unicode'. (Originally from Interactive\FSIstrings.txt:21)

- CODE GENERATION - (Originally from Interactive\FSIstrings.txt:5)

Binding session to '%s'... (Originally from Interactive\FSIstrings.txt:53)

For help type #help;; (Originally from Interactive\FSIstrings.txt:20)

- ADVANCED - (Originally from Interactive\FSIstrings.txt:9)

- Aborting main thread... (Originally from Interactive\FSIstrings.txt:43)

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

If set to true, then all error messages will just return the filled 'holes' delimited by ',,,'s - this is for language-neutral testing (e.g. localization-invariant baselines).

%s for F# %s (Originally from Facilities\UtilsStrings.txt:2)

Microsoft (R) F# Compiler version %s (Originally from Facilities\UtilsStrings.txt:1)

Split an array of pairs into two arrays.

Combine the two arrays into an array of pairs. The two arrays must have equal lengths, otherwise an <c>ArgumentException</c> is raised..

Return the index of the first element in the array that satisfies the given predicate.

Return the index of the first element in the array that satisfies the given predicate.

Return an array containing the given element.

Like <c>foldBack</c>, but return both the intermediary and final results.

Like <c>fold</c>, but return the intermediary and final results.

Build a new collection whose elements are the results of applying the given function to the corresponding elements of the two collections pairwise. The two input arrays must have the same lengths, otherwise an <c>ArgumentException</c> is raised.

Apply the given function to pair of elements drawn from matching indices in two arrays, also passing the index of the elements. The two arrays must have the same lengths, otherwise an <c>ArgumentException</c> is raised.

Return True if the given array is empty, otherwise False.

Test elements of the two arrays pairwise to see if all pairs of elements satisfy the given predicate. Raise <c>ArgumentException</c> if the arrays have different lengths.

Apply a function to pairs of elements drawn from the two collections, right-to-left, threading an accumulator argument through the computation. The two input arrays must have the same lengths, otherwise an <c>ArgumentException</c> is raised.

Apply a function to pairs of elements drawn from the two collections, left-to-right, threading an accumulator argument through the computation. The two input arrays must have the same lengths, otherwise an <c>ArgumentException</c> is raised.

Apply a function to each element of the array, threading an accumulator argument through the computation. If the input function is <c>f</c> and the elements are <c>i0...iN</c> then computes <c>f i0 (...(f iN-1 iN))</c>. Raises ArgumentException if the array has size zero.

Apply a function to each element of the array, threading an accumulator argument through the computation. If the input function is <c>f</c> and the elements are <c>i0...iN</c> then computes <c>f (... (f i0 i1)...) iN</c>. Raises ArgumentException if the array has size zero.

Return the index of the first element in the array that satisfies the given predicate. Raise <c>KeyNotFoundException</c> if none of the elements satisfy the predicate.

Return the index of the first element in the array that satisfies the given predicate. Raise <c>KeyNotFoundException</c> if none of the elements satisfy the predicate.

Test elements of the two arrays pairwise to see if any pair of element satisfies the given predicate. Raise ArgumentException if the arrays have different lengths.

Return a view of the array as an enumerable object.

Build a <c>ResizeArray</c> from the given elements.

Return a fixed-length array containing the elements of the input <c>ResizeArray</c>.

Sort the elements using the key extractor and generic comparison on the keys.

Sort the elements using the given comparison function.

Return a new array with the elements in reverse order.

Apply the given function to successive elements, returning the first result where function returns Some(x) for some x.

Return the first element for which the given function returns True. Return None if no such element exists.

Return the first element for which the given function returns True. Raise <c>KeyNotFoundException</c> if no such element exists.

Apply the given function to each element of the array. Return the array comprised of the results "x" for each element where the function returns <c>Some(x)</c>.

Split the collection into two collections, containing the elements for which the given predicate returns True and False respectively.

Return a new collection containing only the elements of the collection for which the given predicate returns True.

Test if all elements of the array satisfy the given predicate. If the input function is <c>f</c> and the elements are <c>i0...iN</c> and "j0...jN" then computes <c>p i0 && ... && p iN</c>.

Test if any element of the array satisfies the given predicate. If the input function is <c>f</c> and the elements are <c>i0...iN</c> then computes <c>p i0 or ... or p iN</c>.

Build a new array whose elements are the results of applying the given function to each of the elements of the array. The integer index passed to the function indicates the index of element being transformed.

Apply the given function to each element of the array. The integer passed to the function indicates the index of element.

Build a new collection whose elements are the results of applying the given function to the corresponding elements of the two collections pairwise. The two input arrays must have the same lengths.

Apply the given function to two arrays simultaneously. The two arrays must have the same lengths, otherwise an Invalid_argument exception is raised.

Build a new array whose elements are the results of applying the given function to each of the elements of the array.

Apply the given function to each element of the array.

Apply a function to each element of the array, threading an accumulator argument through the computation. If the input function is <c>f</c> and the elements are <c>i0...iN</c> then computes <c>f i0 (...(f iN s))</c>.

Apply a function to each element of the collection, threading an accumulator argument through the computation. If the input function is <c>f</c> and the elements are <c>i0...iN</c> then computes <c>f (... (f s i0)...) iN</c>

Build an array from the given list.

Build a list from the given array.

Read a range of elements from the first array and write them into the second.

Fill a range of the collection with the given element.

Build a new array that contains the elements of the given array.

Build a new array that contains the given subrange specified by starting index and length.

Build a new array that contains the elements of each of the given list of arrays.

Build a new array that contains the elements of the first array followed by the elements of the second array.

Create an array by calling the given generator on each index.

Create an array whose elements are all initially the given value.

Set the value of an element in the collection. You can also use the syntax <c>arr.[idx] <- e</c>.

Fetch an element from the collection. You can also use the syntax <c>arr.[idx]</c>.

Return the length of the collection. You can also use property <c>arr.Length</c>.

Generic operations on the type System.Collections.Generic.List, which is called ResizeArray in the F# libraries.

Calculates the edit distance between two strings. The edit distance is a metric that allows to measure the amount of difference between two strings and shows how many edit operations (insert, delete, substitution) are needed to transform one string into the other.

Calculates the Jaro-Winkler edit distance between two strings. The edit distance is a metric that allows to measure the amount of similarity between two strings.

This type can be used to chain together a series of dependent nodes when there is some kind of type hierarchy in the graph. That is when 'T represents some subset of 'Val (e.g. a sub type or a case in DU). It can also carry some state that is passed along the chain.

This Dependency Graph provides a way to maintain an up-to-date but lazy set of dependent values. When changes are applied to the graph (either vertices change value or edges change), no computation is performed. Only when a value is requested it is lazily computed and thereafter stored until invalidated by further changes.

Immutable map collection, with explicit flattening to a backing dictionary

Interface that defines methods for comparing objects using partial equality relation

Just like "Lazy" but EVERY forcer must provide an instance of "ctxt", e.g. to help track errors on forcing back to at least one sensible user location

A thread-safe lookup table which is assigning an auto-increment stamp with each insert

Memoize tables (all entries cached, never collected unless whole table is collected)

Generates unique stamps

Encapsulates a lock associated with a particular token-type representing the acquisition of that lock.

A base type for various types of tokens that must be passed when a lock is taken. Each different static lock should declare a new subtype of this type.

Represents a token that indicates execution on any of several potential user threads calling the F# compiler services.

Represents a token that indicates execution on the compilation thread, i.e. - we have full access to the (partially mutable) TAST and TcImports data structures - compiler execution may result in type provider invocations when resolving types and members - we can access various caches in the SourceCodeServices Like other execution tokens this should be passed via argument passing and not captured/stored beyond the lifetime of stack-based calls. This is not checked, it is a discipline within the compiler code.

Represents a permission active at this point in execution

Represents a synchronous, cold-start, cancellable computation with explicit representation of a cancelled result. A cancellable computation may be cancelled via a CancellationToken, which is propagated implicitly. If cancellation occurs, it is propagated as data rather than by raising an OperationCanceledException.

For every entry in m2 find an entry in m1 and fold

Union entries by identical key, using the provided function to union sets of values

Not a very useful function - only called in one place - should be changed

Like Seq.distinctBy but only filters out duplicates for some of the elements

Interface that defines methods for comparing objects using partial equality relation

Intern tables to save space.

Represents a place in the compiler codebase where we assume we are executing on a compilation thread

Represents a place in the compiler codebase where we are passed a CompilationThreadToken unnecessarily. This represents code that may potentially not need to be executed on the compilation thread.

Represents a place where we are stating that execution on the compilation thread is required. The reason why will be documented in a comment in the code at the callsite.

Splits a string into substrings based on the strings in the array separators

Split a large ResizeArray into a series of array chunks that are each under the Large Object Heap limit. This is done to help prevent a stop-the-world collection of the single large array, instead allowing for a greater probability of smaller collections. Stop-the-world is still possible, just less likely.

Split a ResizeArray into an array of smaller chunks. This requires `items/chunkSize` Array copies of length `chunkSize` if `items/chunkSize % 0 = 0`, otherwise `items/chunkSize + 1` Array copies.

Returns true if one array has trailing elements equal to another's.

Returns true if one array has another as its subset from index 0.

Check if subArray is found in the wholeArray starting at the provided index

Returns all heads of a given array.

Optimized arrays equality. ~100x faster than `array1 = array2` on strings. ~2x faster for floats ~0.8x slower for ints

Returns a new array with an element replaced with a given value.

Async implementation of Array.map.

pass an array byref to reverse it in place

Runs the computation synchronously, always starting on the current thread.

Get an initialization hole

Per the docs the threshold for the Large Object Heap is 85000 bytes: https://learn.microsoft.com/dotnet/standard/garbage-collection/large-object-heap#how-an-object-ends-up-on-the-large-object-heap-and-how-gc-handles-them We set the limit to be 80k to account for larger pointer sizes for when F# is running 64-bit.

Returns true if the list contains exactly 1 element. Otherwise false.

Returns true if the list has less than 2 elements. Otherwise false.

Logical shift right treating int32 as unsigned integer. Code that uses this should probably be adjusted to use unsigned integer types.

Bind the cancellation token associated with the computation

Run the computation in a mode where it may not be cancelled. The computation never results in a ValueOrCancelled.Cancelled.

Run a cancellable computation using the given cancellation token

Register some items to dispose

Track a set of resources to cleanup

Caches, mainly for free variables

In some cases we play games where we use 'null' as a more efficient representation in F#. The functions below are used to give initial values to mutable fields. This is an unsafe trick, as it relies on the fact that the type of values being placed into the slot never utilizes "null" as a representation. To be used with with care.

Like Append, but returns unit

Writing to output stream via a string buffer.

Buffer printing utility

Provides association of lazily-created values with arbitrary key objects. The associated value is created on first request and kept alive only while the key is strongly referenced elsewhere (backed by ConditionalWeakTable). Usage: let getValueFor = WeakMap.getOrCreate (fun key -> expensiveInit key) let v = getValueFor someKey

Specialized parallel functions for an array. Different from Array.Parallel as it will try to minimize the max degree of parallelism. Will flatten aggregate exceptions that contain one exception.

Note: if duplicates appear, keep the ones toward the _front_ of the list

NOTE: not tail recursive!

NOTE: quadratic!

NOTE: O(n)!

NOTE: O(n)!

Treat a list of key-value pairs as a lookup collection. This function looks up a value based on a match from the supplied predicate function and returns None if value does not exist.

Treat a list of key-value pairs as a lookup collection. This function looks up a value based on a match from the supplied predicate function.

Get the most significant byte of a 32-bit integer

Get the 3rd least significant byte of a 32-bit integer

Get the 2nd least significant byte of a 32-bit integer

Get the least significant byte of a 32-bit integer

Rational arithmetic, used for exponents on units-of-measure

Map a directory name with its replacement. Prefixes are compared case sensitively.

Map a file path with its replacement. Prefixes are compared case sensitively.

Add a path mapping to the map.

Tools for hashing things with MD5 into a string that can be used as a cache key.

Interpret tables for a unicode lexer generated by <c>fslex.exe</c>.

Create the tables from raw data

The type of tables for an unicode lexer generated by <c>fslex.exe</c>.

The start position for the lexeme.

True if the refill of the buffer ever failed , or if explicitly set to True.

The end position for the lexeme.

The start position for the lexeme.

Determines if the parser can report FSharpCore library-only features.

The currently matched text as a Span, it is only valid until the lexer is advanced

Get the language version being supported

True if the refill of the buffer ever failed , or if explicitly set to True.

The end position for the lexeme.

Dynamically typed, non-lexically scoped parameter table.

True if the specified language feature is supported.

Fast helper to turn the matched characters into a string, avoiding an intermediate array.

Determine if Lexeme contains a specific character

Get single character of matched string

Create a lex buffer backed by source text.

Create a lex buffer that reads character or byte inputs by using the given function.

Create a lex buffer suitable for Unicode lexing that reads characters from the given array. Important: does take ownership of the array.

Logs a recoverable error if a language feature is unsupported, at the specified range.

Input buffers consumed by lexers generated by <c>fslex.exe</c>. The type must be generic to match the code generated by FsLex and FsYacc (if you would like to fix this, please submit a PR to the FsLexYacc repository allowing for optional emit of a non-generic type reference).

Return absolute offset of the start of the line marked by the position.

The character number in the input stream.

The line number in the input stream, assuming fresh positions have been updated for the new line by modifying the EndPos property of the LexBuffer.

The file index for the file associated with the input stream, use <c>fileOfFileIndex</c> to decode

Given a position just beyond the end of a line, return a position at the start of the next line.

Get an arbitrary position, with the empty string as file name.

Same line, column -1.

Return the column number marked by the position, i.e. the difference between the <c>AbsoluteOffset</c> and the <c>StartOfLineAbsoluteOffset</c>

Gives a position shifted by specified number of characters.

Given a position at the start of a token of length n, return a position just beyond the end of the token.

Position information stored for lexing tokens

The tag of the error terminal.

The total number of terminals.

This function is used to hold the user specified "parse_error" or "parse_error_rich" functions.

This table is logically part of the Goto table.

The sparse table offsets for the productions active for each state.

The sparse table for the productions active for each state.

The sparse goto table row offsets.

The sparse goto table.

The immediate action table.

The number of symbols for each reduction.

The sparse action table row offsets.

The sparse action table elements.

A function to compute the data carried by a token.

A function to compute the tag of a token.

The token number indicating the end of input.

The reduction table.

Interpret the parser table taking input from the given lexer, using the given lex buffer, and the given start state. Returns an object indicating the final synthesized value for the parse.

Tables generated by fsyacc The type of the tables contained in a file produced by the <c>fsyacc.exe</c> parser generator.

The stack of state indexes active at the parse error .

The token that would cause a shift at the parse error.

The stack of productions that would be reduced at the parse error.

The tokens that would cause a reduction at the parse error.

The state active at the parse error.

The message associated with the parse error.

The token that caused the parse error.

The context provided when a parse error occurs.

Get the start of the range of positions matched by the production.

Get the full range of positions matched by the production.

Get the end of the range of positions matched by the production.

Return the LexBuffer for this parser instance.

Raise an error in this parse context.

Get the start position for the terminal or non-terminal at a given index matched by the production.

Get the start and end position for the terminal or non-terminal at a given index matched by the production.

Get the end position for the terminal or non-terminal at a given index matched by the production.

Get the value produced by the terminal or non-terminal at the given position.

Indicates a parse error has occurred and parse recovery is in progress.

Indicates an accept action has occurred.

The default implementation of the parse_error function.

The default implementation of the parse_error_rich function.

Helpers used by generated parsers.

Lookup or set the given element in the table. Set replaces all existing bindings for a value with a single bindings. Raise <c>KeyNotFoundException</c> if the element is not found.

Lookup or set the given element in the table. Set replaces all existing bindings for a value with a single bindings. Raise <c>KeyNotFoundException</c> if the element is not found.

The total number of keys in the hash table.

Lookup the given element in the table, returning the result as an Option.

Replace the latest binding if any for the given element.

Remove the latest binding if any for the given element from the table.

Apply the given function to each binding in the hash table.

Apply the given function to each element in the collection threading the accumulating parameter through the sequence of function applications.

Find all bindings for the given element in the table, if any.

Make a shallow copy of the collection.

Test if the collection contains any bindings for the given element.

Clear all elements from the collection.

Add a binding for the element to the table.

Build a map that contains the bindings of the given IEnumerable.

Create a new empty mutable HashMultiMap with an internal bucket array of the given approximate size and with the given key hash/equality functions.

Create a new empty mutable HashMultiMap with the given key hash/equality functions.

Hash tables, by default based on F# structural "hash" and (=) functions. The table may map a single key to multiple bindings.

Maps with a specific comparison function

Sets with a specific comparison function

Get the value for the given key or <c>None</c> if not still valid. Skips `areSame` checking unless `areSimilar` is not provided.

Get the value for the given key or None, but only if entry is still valid. Skips `areSame` checking unless `areSimilar` is not provided.

Get the value for the given key or <c>None</c> if not still valid.

Get the value for the given key or None, but only if entry is still valid

Set the given key.

Resize

Remove the given value from the mru cache.

Get the similar (subsumable) value for the given key or <c>None</c> if not already available.

Clear out the cache.

Simple priority caching for a small number of key/value associations. This cache may age-out results that have been Set by the caller. Because of this, the caller must be able to tolerate values that aren't what was originally passed to the Set function. Concurrency: This collection is thread-safe, though concurrent use may result in different threads seeing different live sets of cached items. - areSimilar: Keep at most once association for two similar keys (as given by areSimilar)

Lookup the value without making it the most recent. Returns the original key value because the areSame function may have unified two different keys.

Lookup a value and make it the most recent. Returns the original key value because the areSame function may have unified two different keys.

Lookup a value and make it the most recent. Return <c>None</c> if it wasn't there.

Resize

Remove the given value from the collection.

Add an element to the collection. Make it the most recent.

Remove all elements.

Simple aging lookup table. When a member is accessed it's moved to the top of the list and when there are too many elements the least-recently-accessed element falls of the end. - areSimilar: Keep at most once association for two similar keys (as given by areSimilar)

Iterable functional collection with O(1) append-1 time. Useful for data structures where elements get added at the end but the collection must occasionally be iterated. Iteration is slower and may allocate because a suffix of elements is stored in reverse order. The type doesn't support structural hashing or comparison.

Gets the number of items in the cache

Returns a list of version * value pairs for a given key. The strongly held value is first in the list.

Returns an option of a value for given key and version, and also a list of all other versions for given key

Clear any keys that match the given predicate

Maximum number of strongly held results to keep in the cache Maximum number of weakly held results to keep in the cache A predicate that determines if a value should be kept strongly (no matter what) An event that is called when an item is evicted, collected, weakened or strengthened

A cache where least recently used items are removed when the cache is full. It's also versioned, meaning each key can have multiple versions and only the latest one is kept strongly. Older versions are kept weakly and can be collected by GC.

A drop-in replacement for AsyncMemoize that disables caching and just runs the computation every time.

Maximum number of strongly held results to keep in the cache Maximum number of weakly held results to keep in the cache Name of the cache - used in tracing messages Cancels a job when all the awaiting requests are canceled. If set to false, unawaited job will run to completion and it's result will be cached. If true, when a job is started, all other jobs with the same key will be canceled.

A cache/memoization for computations that makes sure that the same computation will only be computed once even if it's needed at multiple places/times. Strongly holds at most one result per key.

Lookup an element in the map. Raise <c>KeyNotFoundException</c> if no binding exists in the map.

Return True if there are no bindings in the map.

The number of bindings in the map.

Lookup an element in the map, returning a Some value if the element is in the domain of the map and None if not.

The elements of the set as a list.

The elements of the set as an array.

Remove an element from the domain of the map. No exception is raised if the element is not present.

Build two new maps, one containing the bindings for which the given predicate returns True, and another for the remaining bindings.

Build a new collection whose elements are the results of applying the given function to each of the elements of the collection.

Build a new collection whose elements are the results of applying the given function to each of the elements of the collection. The index passed to the function indicates the index of element being transformed.

Apply the given function to each binding in the dictionary.

Return True if the given predicate returns true for all of the bindings in the map. Always returns true if the map is empty.

Given the start and end points of a key range, Fold over the bindings in the map that are in the range, and the end points are included if present (the range is considered a closed interval).

Fold over the bindings in the map.

Fold over the bindings in the map.

Search the map looking for the first element where the given function returns a Some value.

Build a new map containing the bindings for which the given predicate returns True.

Return True if the given predicate returns true for one of the bindings in the map. Always returns false if the map is empty.

The empty map, and use the given comparer comparison function for all operations associated with any maps built from this map.

Build a map that contains the bindings of the given <c>IEnumerable</c> and where comparison of elements is based on the given comparison function.

Test is an element is in the domain of the map.

Return a new map with the binding added to the given map.

Immutable maps. Keys are ordered by construction function specified when creating empty maps or by F# structural comparison if no construction function is specified. <performance> Maps based on structural comparison are efficient for small keys. They are not a suitable choice if keys are recursive data structures or require non-structural comparison semantics. </performance> Immutable maps. A constraint tag carries information about the class of key-comparers being used.

Return a new set with the elements of the second set removed from the first.

Compute the union of the two sets.

Returns the lowest element in the set according to the ordering being used for the set.

Returns the highest element in the set according to the ordering being used for the set.

A useful shortcut for <c>Set.isEmpty</c>. See the <c>Set</c> module for further operations on sets.

Return the number of elements in the set.

The number of elements in the set.

Compute the union of the two sets.

The elements of the set as a list.

The elements of the set as an array.

A singleton set based on the given comparison operator.

A useful shortcut for <c>Set.remove</c>. Note this operation produces a new set and does not mutate the original set. The new set will share many storage nodes with the original. See the <c>Set</c> module for further operations on sets.

Build two new sets, one containing the elements for which the given predicate returns True, and another with the remaining elements.

Apply the given function to each binding in the collection.

Evaluates to True if all elements of the first set are in the second.

Evaluates to True if all elements of the second set are in the first.

Compute the intersection of the two sets.

Test if all elements of the collection satisfy the given predicate. If the input function is f and the elements are i0...iN and j0...jN then computes p i0 && ... && p iN.

Apply the given accumulating function to all the elements of the set.

Return a new collection containing only the elements of the collection for which the given predicate returns True.

Test if any element of the collection satisfies the given predicate. If the input function is f and the elements are i0...iN then computes p i0 or ... or p iN.

Compares two sets and returns True if they are equal or False otherwise.

The empty set based on the given comparer.

Return a new set with the elements of the second set removed from the first.

A set based on the given comparer containing the given initial elements.

A useful shortcut for <c>Set.contains</c>. See the <c>Set</c> module for further operations on sets.

Compares a and b and returns 1 if a > b, -1 if b < a and 0 if a = b.

A useful shortcut for <c>Set.add</c>. Note this operation produces a new set and does not mutate the original set. The new set will share many storage nodes with the original. See the <c>Set</c> module for further operations on sets.

Immutable sets based on binary trees, default tag Immutable sets where a constraint tag carries information about the class of key-comparer being used.

Return file name with one directory above it

Get the full structure of a type as a sequence of tokens, suitable for equality

StructuralUtilities: produce a conservative structural fingerprint of TType. Current (sole) usage: Key in the typeSubsumptionCache. The key must never give a false positive (two non-subsuming types producing identical token sequences). False negatives are acceptable and simply reduce cache hit rate. Properties: * Uses per-compilation stamps (entities, typars, anon records, measures). * Emits shape for union cases (declaring type stamp + case name), tuple structness, function arrows, forall binders, nullness, measures, generic arguments. * Unknown/variable nullness => NeverEqual token to force inequality (avoid unsound hits). Non-goals: * Cross-compilation stability. * Perfect canonicalisation or alpha-equivalence collapsing.

Hash a constant value with exhaustive pattern matching over all Const cases

Hash type parameters

Hash a single type used as the type of a member or value

Hash a type, taking precedence into account to insert brackets where needed

Hash a unit of measure expression

Hash type parameter constraints

Hash an attribute 'Type(arg1, ..., argN)'

Hash the flags of a member

Hash a reference to a type

Auxiliary function for `Continuation.sequence` that assumes the recursions return a 'T list. In the final continuation the `'T list list` will first be concatenated into one list, before being passed to the (final) `continuation`.

This function sequences computations that have been expressed in continuation-passing style. Concretely, when 'T is `int` as an example, can be expressed in continuation-passing style as a function, taking as its input another function that is "how to proceed with a computation given the value of the integer", and returning "the result of that computation". That is, an integer is equivalently represented as a generic function (howToProceed : int -> 'TReturn) -> 'TReturn, and the effect of the function corresponding to the integer 3 is simply to apply the input `howToProceed` to the value 3. The motivation for Continuation.sequence is most easily understood when it is viewed without its second argument: it is a higher-order function that takes "a list of 'T expressed in continuation-passing style", and returns "a 'T list expressed in continuation-passing style". The resulting "continuation-passing 'T list" operates by chaining the input 'Ts together, and finally returning the result of continuing the computation after first sequencing the inputs. Crucially, this technique can be used to enable unbounded recursion: it constructs and invokes closures representing intermediate stages of the sequenced computation on the heap, rather than consuming space on the (more constrained) stack.

Test to report for the name of the type provider that produced the value

The ILScopeRef of the runtime assembly reference for type provider that produced the value

A type provider that produced the value

Apply an operation and 'untaint' the result. This can be used if the return type is guaranteed not to be implemented by a type provider

Apply an operation and 'untaint' the result. The result must be marshallable. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation that returns an option. Unwrap option. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation. No exception may be raised by 'f'

Apply an operation that returns an array. Filter the array. Unwrap array. Any exception will be attributed to the type provider with an error located at the given range. String is method name of thing-returning-array, to diagnostically attribute if it is null

Apply an operation that returns an array. Unwrap array. Any exception will be attributed to the type provider with an error located at the given range. String is method name of thing-returning-array, to diagnostically attribute if it is null

Apply an operation. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation. Any exception will be attributed to the type provider with an error located at the given range

Apply an operation. Any exception will be attributed to the type provider with an error located at the given range

Conditionally coerce the value

Create an initial tainted value

Assert that the value is of 'U and coerce the value. If coercion fails, the failure will be blamed on a type provider

This struct wraps a value produced by a type provider to properly attribute any failures.

creates new instance of TypeProviderError with specified type\method names

creates new instance of TypeProviderError based on current instance information(message)

provides uniform way to process aggregated errors

creates new instance of TypeProviderError that represents collection of errors

creates new instance of TypeProviderError that represents one error

Stores and transports aggregated list of errors reported by the type provider

Determines if an assembly is in the core set of assemblies with high likelihood of being shared amongst a set of common scripting references

Gets the selected target framework moniker, e.g netcore3.0, net472, and the running rid of the current machine

Resolves the references for a chosen or currently-executing framework, for - script execution - script editing - script compilation - out-of-project sources editing - default references for fsc.exe - default references for fsi.exe

Whether or not this file should be a single-file project

A helpers for dealing with F# files.

Whether or not this file is compilable

Return true if this is a subcategory of error or warning message that the language service can emit

Return the language ID, which is the expression evaluator id that the debugger will use.

Return the compilation defines that should be used when editing the given file.

These are the names of assemblies that should be referenced for .fs or .fsi files that are not associated with a project.

The default location of FSharp.Core.dll and fsc.exe based on the version of fsc.exe that is running

Information about the compilation environment

Creates a ByteStorage that has a copy of the given Memory<byte>.

Creates a ByteStorage that has a copy of the given ByteMemory.

Creates a ByteStorage whose backing bytes are the given ByteMemory. Does not make a copy.

Creates a ByteStorage that has a copy of the given byte array.

Creates a ByteStorage whose backing bytes are the given byte array. Does not make a copy.

Imperative buffers and streams of byte[] Not thread safe.

Create a default implementation of the file system

Represents a default (memory-mapped) implementation of the file system

Open the file for writing. Returns a Stream.

Open the file for read, returns ByteMemory, uses either FileStream (for smaller files) or MemoryMappedFile (for potentially big files, such as dlls).

Removes relative parts from any full paths

Used to determine if a file will not be subject to deletion during the lifetime of a typical client process.

A shim over Path.IsPathRooted

A shim over Path.IsInvalidPath

A shim over Path.GetTempPath

Utc time of the last modification

Take in a file name with an absolute path, and return the same file name but canonicalized with respect to extra path separators (e.g. C:\\\\foo.txt) and '..' portions

Take in a directory, filename, and return canonicalized path to the file name in directory. If file name path is rooted, ignores directory and returns file name path. Otherwise, combines directory with file name and gets full path via GetFullPathShim(string).

A shim for getting directory name from path

A shim over File.Exists

A shim over File.Delete

A shim over Directory.EnumerateFiles

A shim over Directory.EnumerateDirectories

A shim over Directory.Exists

A shim over Directory.Delete

A shim over Directory.Exists, but returns a string, the FullName of the resulting DirectoryInfo.

A shim over Path.ChangeExtension

Represents a shim for the file system

Default implementation for IAssemblyLoader

Used to load type providers and located assemblies in F# Interactive

Used to load a dependency for F# Interactive and in an unused corner-case of type provider loading

Type which we use to load assemblies.

Gets a ByteMemory object that is empty

Empty byte memory.

Creates a ByteMemory object that is backed by a raw pointer. Use with care.

Create a ByteMemory object that has a backing memory mapped file.

Creates a ByteMemory object that is backed by a byte array.

Creates a ByteMemory object that is backed by a byte array with the specified offset and length.

Get a stream representation of the backing memory. Disposing this will not free up any of the backing memory.

Get a stream representation of the backing memory. Disposing this will not free up any of the backing memory. Stream cannot be written to.

A view over bytes. May be backed by managed or unmanaged memory, or memory mapped file.

The global hook into the file system

Checks whether file is dll (ends in .dll)

Trim the quotes and spaces from either end of a string

Get the file name without extension of the given path.

Get the file name of the given path.

Return True if the path has a "." extension.

chopExtension f removes the extension from the given file name. Raises ArgumentException if no extension is present. checkSuffix f s returns True if file name "f" ends in suffix "s", e.g. checkSuffix "abc.fs" ".fs" returns true. Disregards casing, e.g. checkSuffix "abc.Fs" ".fs" returns true.

Filesystem helpers

MemoryMapped extensions

each int will be 0 <= x <= 255

each int must be 0 <= x <= 255

returned int will be 0 <= x <= 255

For testing only.

For testing only.

For testing only. Creates a local telemetry listener for this cache instance.

Comparer to use for keys.

Mechanism to use for evicting items from the cache.

Safety margin size as a percentage of TotalCapacity.

Total capacity, determines the size of the underlying store.

Evict items in the background using a MailboxProcessor to queue eviction requests. This may lag behind during heavy load but avoids blocking callers.

Evict items immediately on the caller's thread when adding a new item that would exceed capacity.

Do not evict items, cache is effectively a ConcurrentDictionary.

Set eviction mode to NoEviction.

Default options, using reference equality for keys and queued eviction.

Default options, using structural equality for keys and queued eviction.

A local listener that can be created for a specific Cache instance to get its metrics. For testing purposes only.

Global telemetry Meter for all caches. Exposed for testing purposes. Set FSHARP_OTEL_EXPORT environment variable to enable OpenTelemetry export to external collectors in tests.

Get the text used to specify the version, several of which may map to the same version

Get the list of valid versions

Get the list of valid options

Get the specified LanguageVersion as a string

Get the specified LanguageVersion

Has preview been explicitly specified

Does the selected LanguageVersion support the specified feature

Has been explicitly specified as 4.6, 4.7 or 5.0

Get a version string associated with the given feature.

Get a string name for the given feature.

Get the list of valid versions

Create a LanguageVersion management object

LanguageVersion management

RFC-1137

LanguageFeature enumeration

Coordinating compiler operations - configuration, loading initial context, reporting errors etc.

When disposed, restores caller's diagnostics logger and build phase.

This represents the global state established as each task function runs as part of the build. Use to reset error and warning handlers.

Execute the new function, on a new thread if necessary

Indicates whether a language feature check should be skipped. Typically used in recursive functions where we don't want repeated recursive calls to raise the same diagnostic multiple times.

The result type of a computational modality to collect warnings and possibly fail

Thread statics for the installed diagnostic logger

Represents a DiagnosticsLogger that captures all diagnostics, optionally formatting them eagerly.

Get the number of error diagnostics reported

Emit a diagnostic to the logger

Checks if ErrorCount > 0

Represents a capability to log diagnostics

This is the textual subcategory to display in error and warning messages (shows only under --vserrors): file1.fs(72): subcategory warning FS0072: This is a warning message

Return true if the textual phase given is from the compile part of the build process. This set needs to be equal to the set of subcategories that the language service can produce.

Return true if this phase is one that's known to be part of the 'compile'. This is the initial phase of the entire compilation that the language service knows about.

Construct a phased error

Closed enumeration of build phases.

An exiter that raises StopProcessingException if Exit is called, saving the exit code in ExitCode.

Represents an early exit from parsing, checking etc, for example because 'maxerrors' has been reached.

Represents the style being used to format errors

fixes given string by replacing all control chars with spaces. NOTE: newlines are recognized and replaced with stringThatIsAProxyForANewlineInFlatErrors (ASCII 29, the 'group separator'), which is decoded by the IDE with 'NewlineifyErrorString' back into newlines, so that multi-line errors can be displayed in QuickInfo

Stop on first error. Accumulate warnings and continue.

Stop on first error. Accumulate warnings and continue.

The bind in the monad. Stop on first error. Accumulate warnings and continue. <remarks>Not meant for direct usage. Used in other inlined functions</remarks>

Reports an informational diagnostic

Reports an error and raises a ReportedError exception

Reports a warning diagnostic

Reports an error diagnostic and continues

NOTE: The change will be undone when the returned "unwind" object disposes

NOTE: The change will be undone when the returned "unwind" object disposes

Represents a DiagnosticsLogger that ignores diagnostics and asserts

Represents a DiagnosticsLogger that discards diagnostics

An exiter that quits the process if Exit is called.

Creates a DiagnosticEnabledWithLanguageFeature whose text comes via SR.*

Creates a DiagnosticWithSuggestions whose text comes via SR.*

Creates a diagnostic exception whose text comes via SR.*

A diagnostic that is raised when enabled manually, or by default with a language feature

Represents a diagnostic exception whose text comes via SR.*

Thrown when we stop processing the F# Interactive entry or #load.

Thrown when immediate, local error recovery is not possible. This indicates we've reported an error but need to make a non-local transfer of control. Error recovery may catch this and continue (see 'errorRecovery') The exception that caused the report is carried as data because in some situations (LazyWithContext) we may need to re-report the original error when a lazy thunk is re-evaluated.

Thrown when we want to add some range information to a .NET exception

Run computations sequentially starting immediately on the current thread.

Run computations using Async.Parallel. Captures the diagnostics from each computation and commits them to the caller's logger preserving their order. When done, restores caller's build phase and diagnostics logger.

Like ErrorRecover by no range is attached to System.Exception and ArgumentException.

Perform error recovery from an exception if possible, including catching StopProcessingExn

Perform error recovery from an exception if possible. - StopProcessingExn is not caught. - ReportedError is caught and ignored. - TargetInvocationException is unwrapped - If precisely a System.Exception or ArgumentException then the range is attached as InternalError. - Other exceptions are unchanged All are reported via the installed diagnostics logger

Simulates a diagnostic. For test purposes only.

Report a diagnostic as an error and raise `ReportedError`

Report a diagnostic as a warning and recover

Report a diagnostic as an error and recover

Instruct the exception not to reset itself when thrown again.

Literal build phase subcategory strings.

Demangles a suggestion

We report a candidate if its edit distance is <= the threshold. The threshold is set to about a quarter of the number of characters.

Functions to format error message details

A record of options to control structural formatting. For F# Interactive properties matching those of this value can be accessed via the 'fsi' value. Floating Point format given in the same format accepted by System.Double.ToString, e.g. f6 or g15. If ShowProperties is set the printing process will evaluate properties of the values being displayed. This may cause additional computation. The ShowIEnumerable is set the printing process will force the evaluation of IEnumerable objects to a small, finite depth, as determined by the printing parameters. This may lead to additional computation being performed during printing.

The maximum number of rows for which to generate layout for table-like structures. -1 if no maximum.

The maximum number of elements for which to generate layout for list-like structures, or columns in table-like structures. -1 if no maximum.

Return to the layout-generation environment to layout any otherwise uninterpreted object

Data representing structured layouts of terms.

Gets the text

Gets the tag

Creates text with a tag

Represents text with a tag

Represents the tag of some tagged text

Data representing joints in structured layouts of terms. The representation of this data type is only for the consumption of formatting engines.

Represents a range using zero-based line counting (used by Visual Studio)

Represents a position using zero-based line counting (used by Visual Studio)

Represents a line number when using zero-based line counting (used by Visual Studio)

Represents a range within a file

The range where all values are zero

The empty range that is located at the start position of the range

The start line of the range

The start column of the range

The start position of the range

When de-sugaring computation expressions we convert a debug point into a plain range, and then later recover that the range definitely indicates a debug point.

Synthetic marks ranges which are produced by intermediate compilation phases. This bit signifies that the range covers something that should not be visible to language service operations like dot-completion.

The file name for the file of the range

The file index for the range

The empty range that is located at the end position of the range

The line number for the end position of the range

The column number for the end position of the range

The end position of the range

Note that a range indicates a debug point

Convert a range to be synthetic

Check if the range is adjacent to another range

Apply the line directives to the range.

Represents a range within a file

Represents a position in a file

The line number for the position

The maximum number of bits needed to store an encoded position

The encoding of the position as a 64-bit integer

The column number for the position

Check if the position is adjacent to another position

Decode a position for a 64-bit integer

Represents a position in a file

Notes that a range is related to an implied "Delay"m "Quote" or "Run" at the entry to a computation expression. This doesn't apply to the "Delay" calls added for try/with, try/finally, while or for constructs.

Notes that a range is related to a sequential "a; b" translated to a "Combine" call in a computation expression This doesn't include "expr; cexpr" sequentials where the "expr" is a side-effecting simple statement This does include "expr; cexpr" sequentials where the "expr" is interpreted as an implicit yield + Combine call

Notes that a range is related to a "with" in a "try/with" in a computation, list, array or sequence expression

Notes that a range is related to a "finally" in a "try/finally" in a computation, list, array or sequence expression

Notes that a range is related to a "let" or other binding range in a computation, list, array or sequence expression

Notes that a range is related to a "try" in a "try/with" in a computation, list, array or sequence expression

Notes that a range is related to a "in" in a "for .. in ... do" or "to" in "for .. = .. to .. do" in a computation, list, array or sequence expression

Notes that a range is related to a "for" in "for .. do" in a computation, list, array or sequence expression

Notes that a range is related to a "while" in "while .. do" in a computation, list, array or sequence expression

An index into a global tables of filenames

Render a Layout yielding an 'a using a 'b (hidden state) type

An enhancement to TaggedText in the TaggedText layouts generated by FSharp.Compiler.Service

Just like ISourceText, but with a checksum. Added as a separate type to avoid breaking changes.

Gets the total length of the input in characters

Gets a character in an input based on an index of characters from the start of the file

Checks if a section of the input is equal to the given string

Gets a section of the input

Gets a section of the input based on a given range. <exception cref="System.ArgumentException">Throws an exception when the input range is outside the file boundaries.</exception>

Gets a line of an input by index

Gets the count of lines in the input

Gets the last character position in the input, returning line and column

Copies a section of the input to the given destination ad the given index

Checks if one input is equal to another

Represents an input to the F# compiler

Convert any value to a layout using the given formatting options. The layout can then be processed using formatting display engines such as those in the Layout module. any_to_string and output_any are built using any_to_layout with default format options.

For limiting layout of list-like sequences (lists,arrays,etc). unfold a list of items using (project and z) making layout list via itemL. If reach maxLength (before exhausting) then truncate.

See tagL

Layout like an F# list.

Layout like an F# option.

Layout list vertically.

Layout two vertically.

Form tuple of layouts.

Wrap braces around layout.

Wrap square brackets around layout.

Wrap round brackets around Layout.

Join layouts into a list separated using the given Layout.

Join layouts into a semi-colon separated list.

Join layouts into a space separated list.

Join layouts into a comma separated list.

Join broken with ident=4

Join broken with ident=3

Join broken with ident=2

Join broken with ident=1

Join broken with ident=0

optional break, indent=4

optional break, indent=3

Join, possible break with indent=2

Join, possible break with indent=1

Join, possible break with indent=0

Join, unbreakable.

An string which is left parenthesis (no space on the right).

An string which is right parenthesis (no space on the left).

An string which requires no spaces either side.

An string leaf

An uninterpreted leaf, to be interpreted into a string by the layout engine. This allows leaf layouts for numbers, strings and other atoms to be customized according to culture.

Check if the last character in the layout is the given character

Is it the empty layout?

The empty layout

A layout is a sequence of strings which have been joined together. The strings are classified as words, separators and left and right parenthesis. This classification determines where spaces are inserted. A joint is either unbreakable, breakable or broken. If a joint is broken the RHS layout occurs on the next line with optional indentation. A layout can be squashed to for given width which forces breaks as required.

Convert a line number from one-based line counting (used internally in the F# compiler and in F# error messages) to zero-based line counting (used by Visual Studio)

Convert a line number from zero-based line counting (used by Visual Studio) to one-based line counting (used internally in the F# compiler and in F# error messages)

Functions related to converting between lines indexed at 0 and 1

Equality comparer for range.

Convert a range from one-based line counting (used internally in the F# compiler and in F# error messages) to zero-based line counting (used by Visual Studio)

Convert a range from one-based line counting (used internally in the F# compiler and in F# error messages) to zero-based line counting (used by Visual Studio)

Convert a range to a string

A range associated with a dummy file for the command line arguments

A range associated with a dummy file called "startup"

The zero range

Make a dummy range for a file

Test to see if a range occurs fully before a position

Test to see if a range contains a position

Test to see if one range contains another range

Union two ranges, taking their first occurring start position and last occurring end position

Output a range

Order ranges (file, then start pos, then end pos)

Reduce a range so it only covers a line

Make a range for the first non-whitespace line of the file if any. Otherwise use line 1 chars 0-80. This involves reading the file.

This view hides the use of file indexes and just uses filenames

This view of range marks uses file indexes explicitly

Ordering on positions

Add the line directive data of the source file of fileIndex. Each line directive is represented by the line number of the directive and the file index and line number of the target.

Convert an index into a file path

Convert a file path to an index

The zero position

Convert a position to a string

Output a position

Convert a position from one-based line counting (used internally in the F# compiler and in F# error messages) to zero-based line counting (used by Visual Studio)

Convert a position from zero-based line counting (used by Visual Studio) to one-based line counting (used internally in the F# compiler and in F# error messages)

Compare positions for greater-than-or-equal-to

Compare positions for equality

Compare positions for greater-than

Compare positions for less-than

Create a position for the given line and column

Render layout to collector of TaggedText

Render layout to StringBuilder

Render layout to channel

Render layout to string

Run a render on a Layout

Creates an ISourceText object from the given string

Functions related to ISourceText objects

Return 'true' if the computation is in-progress.

Return 'true' if the computation has already been computed.

Return 'Some' if the computation has already been computed, else None if the computation is in-progress or has not yet been started.

Return NodeCode which, when executed, will get the value of the computation if already computed, or await an existing in-progress computation for the node if one exists, or else will synchronously start the computation on the current thread.

Creates a GraphNode with given result already cached.

- computation - The computation code to run.

Evaluate the computation, allowing asynchronous waits on existing ongoing evaluations of the same node, and strongly cache the result. Once the result has been cached, the computation function will also be removed, or 'null'ed out, as to prevent any references captured by the computation from being strongly held.

Allows to specify the language for error messages

Contains helpers related to the build graph

Will not dispose of the stream reader.

Try to get the XmlDocumentationInfo for a file

Represents a capability to access XmlDoc files

Look up an item in the XmlDoc file

Create an XmlDocumentationInfo from a file

Represents access to an XmlDoc file

Get the overall range of the PreXmlDoc

Indicates if the PreXmlDoc is non-empty

Get the empty PreXmlDoc

Process and check the PreXmlDoc, checking with respect to the given parameter names

Merge two PreXmlDoc

Mark the PreXmlDoc as invalid

Create a PreXmlDoc from a collection of unprocessed lines

Represents the XmlDoc fragments as collected from the lexer during parsing

Get the documentation lines before the given point

Indicates it the given point has XmlDoc comments

Check if XmlDoc comments are at invalid positions, and if so report them

Add a line of XmlDoc text

Indicate the next XmlDoc will act as a point where prior XmlDoc are collected

Add a point where prior XmlDoc are collected

Create a fresh XmlDocCollector

Used to collect XML documentation during lexing and parsing.

Get the lines before insertion of implicit summary tags and encoding

Indicates the overall original source range of the XmlDoc

Indicates if the XmlDoc is non-empty

Indicates if the XmlDoc is empty

Get the empty XmlDoc

Merge two XML documentation

Get the elaborated XML documentation as XML text

Get the lines after insertion of implicit summary tags and encoding

Check the XML documentation

Represents collected XmlDoc lines

The syntax range of `not`

The syntax range of `:`

Represents additional information for SynTypeConstraint.WhereTyparNotSupportsNull

Represents additional information for SynConst.Measure

The syntax ranges of the `&` tokens

Represents additional information for SynTyparDecl

The syntax range of 'get, set'

Represents additional information for SynMemberSig.Member

The syntax range of the `:` token

Represents additional information for SynBindingReturnInfo

The syntax range of the `|` token

Represents additional information for SynType.WithNull

The syntax range of the `or` keyword

Represents additional information for SynType.Or

The syntax range of the `mutable` keyword

Used leading keyword of SynField

Represents additional information for SynField

Represents additional information for SynMemberDefn.Inherit

The syntax range of 'get, set'

Represents additional information for SynMemberDefn.AbstractSlot

The syntax range of 'get, set'

The syntax range of the `=` token

The syntax range of the `with` keyword

Used leading keyword of AutoProperty

Represents additional information for SynMemberDefn.AutoProperty

Represents additional information for `get, set` syntax

The syntax range from the beginning of the `(` token till the end of the `)` token.

Represents additional information for SynArgPats.NamePatPairs

The syntax range of the `as` keyword

Represents additional information for SynMemberDefn.ImplicitCtor

The syntax range of the `set` keyword

The syntax range of the `and` keyword

The syntax range of the `get` keyword

The syntax range of the `with` keyword

The syntax range of the `inline` keyword

Represents additional information for SynMemberDefn.GetSetMember

The syntax range of the `->` token.

Represents additional information for SynType.Fun

The syntax range of the `=` token.

The syntax range of the `with` keyword

The syntax range of the `inline` keyword

Used leading keyword of SynValSig In most cases this will be `val`, but in case of `SynMemberDefn.AutoProperty` or `SynMemberDefn.AbstractSlot` it could be something else.

Represents additional information for SynValSig

The syntax range of the `module` or `namespace` keyword

Represents additional information for SynModuleOrNamespaceSig

The syntax range of the `module` or `namespace` keyword

Represents additional information for SynModuleOrNamespace

Represents the leading keyword in a SynModuleOrNamespace or SynModuleOrNamespaceSig

The syntax range of the `=` token.

The syntax range of the `module` keyword

Represents additional information for SynModuleSigDecl.NestedModule

The syntax range of the `=` token.

The syntax range of the `module` keyword

Represents additional information for SynModuleDecl.NestedModule

The syntax range of the `=` token.

The syntax range of the `inline` keyword

Used leading keyword of SynBinding

Represents additional information for SynBinding

Represents the leading keyword in a SynBinding or SynValSig

The syntax range of the `with` keyword

The syntax range of the `=` token.

The syntax range of the `type` or `and` keyword.

Represents additional information for SynTypeDefnSig

The syntax range of the `with` keyword

The syntax range of the `=` token.

The syntax range of the `type` or `and` keyword.

Represents additional information for SynTypeDefn

Produced during type checking, should not be used in actual parsed trees.

Can happen in SynMemberDefn.NestedType or SynMemberSig.NestedType

Represents the leading keyword in a SynTypeDefn or SynTypeDefnSig

The syntax range of the `::` token.

Represents additional information for SynPat.Cons

The syntax range of the `|` token.

Represents additional information for SynPat.Or

The syntax range of the `|` token.

Represents additional information for SynUnionCase

The syntax range of the `=` token.

The syntax range of the `|` token.

Represents additional information for

The syntax range of the `|` token.

The syntax range of the `->` token.

Represents additional information for SynMatchClause

The syntax range of the `;` token. Could also be the `then` keyword.

Represents additional information for SynExpr.Sequential

The syntax range of the `{|` token.

Represents additional information for SynExpr.AnonRecd

The syntax range of the `yield!` or `return!` keyword.

Represents additional information for SynExpr.YieldOrReturnFrom

The syntax range of the `yield` or `return` keyword.

Represents additional information for SynExpr.YieldOrReturn

The syntax range of the `do!` keyword

Represents additional information for SynExpr.DoBang

The syntax range of the `with` keyword

The syntax range of the `match!` keyword

Represents additional information for SynExpr.MatchBang

The syntax range of the `with` keyword

The syntax range of the `match` keyword

Represents additional information for SynExpr.Match

The syntax range of the `in` keyword.

The syntax range of the `let` or `use` keyword.

Represents additional information for SynExpr.LetOrUse

Represents additional information for SynExpr.DotLambda

The syntax range of the `->` token.

Represents additional information for SynExpr.Lambda

The syntax range from the beginning of the `if` keyword till the end of the `then` keyword.

The syntax range of the `else` keyword.

The syntax range of the `then` keyword.

Indicates if the `elif` keyword was used

The syntax range of the `if` keyword.

Represents additional information for SynExpr.IfThenElse

The syntax range of the `finally` keyword

The syntax range of the `try` keyword.

Represents additional information for SynExpr.TryFinally

The syntax range from the beginning of the `with` keyword till the end of the TryWith expression.

The syntax range of the `with` keyword

The syntax range from the beginning of the `try` keyword till the end of the `with` keyword.

The syntax range of the `try` keyword.

Represents additional information for SynExpr.TryWith

Represent code comments found in the source file

Warn directives (#nowarn / #warnon)

Preprocessor directives of type #if, #else or #endif

Represents additional information for ParsedInput

The ident had parenthesis Example: let (|Odd|Even|) = ... The active pattern ident will be "|Odd|Even|", while originally there were parenthesis.

The ident originally had a different notation and parenthesis Example: let (>=>) a b = ... The operator ident will be compiled into "op_GreaterEqualsGreater", while the original notation was ">=>" and had parenthesis

The ident originally had a different notation. Example: a + b The operator ident will be compiled into "op_Addition", while the original notation was "+"

Adds SynPat.Or pattern for unfinished empty clause above

Generated get_XYZ or set_XYZ ident text

'e1 |||> e2'

'e1 ||> e2'

'e1 |> e2'

'e1 || e2'

'e1 && e2'

"fun (UnionCase x) (UnionCase y) -> body" ==> "fun tmp1 tmp2 -> let (UnionCase x) = tmp1 in let (UnionCase y) = tmp2 in body"

Push non-simple parts of a patten match over onto the r.h.s. of a lambda. Return a simple pattern and a function to build a match on the r.h.s. if the pattern is complex

Recognize the '()' in 'new()'

This affects placement of debug points

Match a long identifier, including the case for single identifiers which gets a more optimized node in the syntax tree.

Infer the syntactic information for a 'let' or 'member' definition, based on the argument pattern, any declared return information (e.g. .NET attributes on the return element), and the r.h.s. expression in the case of 'let' definitions.

Transform a property declared using '[static] member P = expr' to a method taking a "unit" argument. This is similar to IncorporateEmptyTupledArgForPropertyGetter, but applies to member definitions rather than member signatures.

Make sure only a solitary unit argument has unit elimination

Infer the syntactic argument info for one or more arguments a pattern.

Infer the syntactic argument info for one or more arguments one or more simple patterns.

Infer the syntactic argument info for a single argument from a simple pattern.

Get the argument attributes from the syntactic information for an argument.

Get the argument counts for each curried argument group. Used in some adhoc places in tc.fs.

Add a parameter entry to the syntactic value information to represent the value argument for a property setter. This is used for the implicit value argument in property setter signature specifications.

Add a parameter entry to the syntactic value information to represent the 'this' argument. This is used for the implicit 'this' argument in member signature specifications.

Add a parameter entry to the syntactic value information to represent the '()' argument to a property getter. This is used for the implicit '()' argument in property getter signature specifications.

Check if there are any optional arguments in the syntactic argument information. Used when adjusting the types of optional arguments for function and member signatures.

Check if one particular argument is an optional argument. Used when adjusting the types of optional arguments for function and member signatures.

Determine if a syntactic information represents a member without arguments (which is implicitly a property getter)

The 'argument' information for the 'this'/'self' parameter in the cases where it is not given explicitly

The 'argument' information for a return value where no attributes are given for the return value (the normal case)

The argument information for a '()' argument

The argument information for a curried argument without a name

The argument information for an argument without a name

Operations related to the syntactic analysis of arguments of value, function and member definitions and signatures.

Check if the range is inside a "nowarn" scope for the given warning number.

Check if the range is inside a "warnon" scope for the given warning number.

Get the collected ranges of the warn directives

To be called after lexing a file to create warn scopes from the stored line and warn directives and to add them to the warn scopes from other files in the diagnostics options. Note that isScript and subModuleRanges are needed only to avoid breaking changes for previous language versions.

To be called during lexing to save #nowarn / #warnon directives.

Creates SynExpr.LetOrUse based on isBang parameter Handles all four cases: 'let', 'let!', 'use', and 'use!'

Incorporate a '^' for an qualified access to a generic type parameter

The error raised by the parse_error_rich function, which is called by the parser engine when a syntax error occurs. The first object is the ParseErrorContext which contains a dump of information about the grammar at the point where the error occurred, e.g. what tokens are valid to shift next at that point in the grammar. This information is processed in CompileOps.fs.

This function gets the name of a token as a string

This function maps production indexes returned in syntax errors to strings representing the non terminal that would be produced by that production

This function maps integer indexes to symbolic token ids

This function maps tokens to integer indexes

This function gets the name of a token as a string

This function maps production indexes returned in syntax errors to strings representing the non terminal that would be produced by that production

This function maps integer indexes to symbolic token ids

This function maps tokens to integer indexes

Used in lex.fsl to represent the state of a block comment

Used in lex.fsl to represent the state of a single line comment

Used in lex.fsl to represent the state of a string literal

The context applicable to all lexing functions (tokens, strings etc.)

Lexer args: status of #light processing. Mutated when a #light directive is processed. This alters the behaviour of the lexfilter.

Arbitrary value

Rule rest

Rule tokenstream

Rule mlOnly

Rule tripleQuoteStringInComment

Rule verbatimStringInComment

Rule stringInComment

Rule comment

Rule singleLineComment

Rule extendedInterpolatedString

Rule tripleQuoteString

Rule verbatimString

Rule singleQuoteString

Rule endline

Rule ifdefSkip

Rule token

The LexBuffer associated with the filter

Get the next token

Create a lex filter

A stateful filter over the token stream that adjusts it for indentation-aware syntax rules Process the token stream prior to parsing. Implements the offside rule and other lexical transformations.

Match the close of '>' of a set of type parameters. This is done for tokens such as '>>' by smashing the token

LexFilter - process the token stream prior to parsing. Implements the offside rule and a couple of other lexical transformations.

Compute the hash value for the tainted value

Test whether the tainted value equals given value. Type providers are ignored (equal tainted values produced by different type providers are equal) Failure in call to equality operation will be blamed on type provider of first operand

Test whether the tainted value equals given value. Failure in call to equality operation will be blamed on type provider of first operand

Test whether the tainted value is null

The table of remappings from type names in the provided assembly to type names in the statically linked, embedded assembly.

Create a new static linking map, ready to populate with data.

The table of information recording remappings from type names in the provided assembly to type names in the statically linked, embedded assembly, plus what types are nested in side what types.

Represents the remapping information for a generated provided type and its nested types. There is one overall tree for each root 'type X = ... type generation expr...' specification.

Convert the expression to a string for diagnostics

Map the TyconRef objects, if any

The context used to interpret information in the closure of System.Type, System.MethodInfo and other info objects coming from the type provider. At the moment this is the "Type --> ILTypeRef" and "Type --> Tycon" remapping context for generated types (it is empty for erased types). This is computed from while processing the [<Generate>] declaration related to the type. Immutable (after type generation for a [<Generate>] declaration populates the dictionaries). The 'obj' values are all TyconRef, but obj is used due to a forward reference being required. Not particularly pleasant, but better than intertwining the whole "ProvidedType" with the TAST structure.

The folder for temporary files

All referenced assemblies, including the type provider itself, and possibly other type providers.

Whether or not the --showextensionresolution flag was supplied to the compiler.

Output file name

The folder from which an extension provider is resolving from. This is typically the project folder.

Carries information about the type provider resolution environment.

Check if this is a direct reference to a non-embedded generated type. This is not permitted at any name resolution. We check by seeing if the type is absent from the remapping context.

Get the ILTypeRef for the provided type (including for nested types). Do not take into account any type relocations or static linking for generated types.

Get the ILTypeRef for the provided type (including for nested types). Take into account any type relocations or static linking for generated types.

Decompose the enclosing name of a type (including any class nestings) into a list of parts. e.g. System.Object -> ["System"; "Object"]

Get the parts of a .NET namespace. Special rules: null means global, empty is not allowed.

Try to resolve a type in the given extension type resolver

Try to resolve a type in the given extension type resolver

Try to apply a provided method to the given static arguments.

Try to apply a provided type to the given static arguments. If successful also return a function to check the type name is as expected (this function is called by the caller of TryApplyProvidedType after other checks are made).

Validate that the given provided type meets some of the rules for F# provided types

Get all provided types from provided namespace

Get the provided expression for a particular use of a method.

Given an extension type resolver, supply a human-readable name suitable for error messages.

Find and instantiate the set of ITypeProvider components for the given assembly reference

Get the list of relative paths searched for type provider design-time components

Raised when an type provider has thrown an exception.

Raised when a type provider has thrown an exception.

Find and instantiate the set of ITypeProvider components for the given assembly reference

Indicates an F# 3.0+ reference to a named type in an assembly loaded by name

Indicates an F# 4.0+ reference into the supplied table of type definition references, ultimately resolved by TypeRef/TypeDef data

Code to pickle out quotations in the quotation binary format.

A global generator of stable compiler generated names

A global generator of compiler generated names

A name generator used by IlxGen for static fields, some generated arguments and other things.

Generates compiler-generated names marked up with a source code location, but if given the same unique value then return precisely the same name. Each name generated also includes the StartLine number of the range passed in at the point of first generation. This type may be accessed concurrently, though in practice it is only used from the compilation thread. It is made concurrency-safe since a global instance of the type is allocated in tast.fs.

Generates compiler-generated names. Each name generated also includes the StartLine number of the range passed in at the point of first generation. This type may be accessed concurrently, though in practice it is only used from the compilation thread. It is made concurrency-safe since a global instance of the type is allocated in tast.fs, and it is good policy to make all globally-allocated objects concurrency safe in case future versions of the compiler are used to host multiple concurrent instances of compilation.

Unique name generator for stamps attached to to val_specs, tycon_specs etc. Concurrency-safe

Concurrency-safe

Defines the global environment for all type checking.

Create a new Val node

Create a new union case node

Create a new type parameter node

Create a new type definition node

Create a new type parameter node for a declared type parameter

Create a new TAST RecdField node for an F# class, struct or record field

Create a new node for the representation information for a provided type definition

Create a new entity node for a provided type definition

Create a new node for the contents of a module or namespace

Create a new entity node for a module or namespace

Create a Val based on an existing one using the function 'f'. We require that we be given the parent for the new Val.

Create a tycon based on an existing one using the function 'f'. We require that we be given the new parent for the new tycon. We pass the new tycon to 'f' in case it needs to reparent the contents of the tycon.

Create a module Tycon based on an existing one using the function 'f'. We require that we be given the parent for the new module. We pass the new module to 'f' in case it needs to reparent the contents of the module.

Create a new type definition node for a .NET type definition

Create a new unfilled cache for free variable calculations

Create a new TAST Entity node for an F# exception definition

Create a new node for an empty module or namespace contents

Create a new node for an empty F# tycon data

Create a new type definition node by cloning an existing one

Create a new module or namespace node by cloning an existing one

Create the new contents of an overall assembly

Create a node for a union type

Create the union case tables for a union type

Create the field tables for a record or class type

Key a Tycon or TyconRef by decoded name

Key a Tycon or TyconRef by both mangled type demangled name. Generic types can be accessed either by 'List' or 'List`1'. This lists both keys.

Compute the definition location of a provided item

A set of static methods for constructing types.

See FreeTyvars above.

The summary of union constructors used in the expression. These may be marked 'internal' or 'private' type we have to check various conditions associated with that.

The summary of fields used in the expression. These may be made private by a signature or marked 'internal' or 'private' type we have to check various conditions associated with that.

The summary of locally defined tycon representations used in the expression. These may be made private by a signature or marked 'internal' or 'private' type we have to check various conditions associated with that.

Indicates if the expression contains a call to rethrow that is not bound under a (try-)with branch. Rethrow may only occur in such locations.

Indicates if the expression contains a call to a protected member or a base call. Calls to protected members type direct calls to super classes can't escape, also code can't be inlined

The summary of locally defined variables used in the expression. These may be hidden at let bindings etc. or made private by a signature or marked 'internal' or 'private', type we have to check various conditions associated with that.

Represents the set of free variables in an expression

Represents an amortized computation of the free variables in an expression

The summary of type parameters used in the expression. These may not escape the enclosing generic construct type we have to check various conditions associated with that.

The summary of values used as trait solutions

The summary of locally defined type definitions used in the expression. These may be made private by a signature type we have to check various conditions associated with that.

Represents a set of 'free' type-related elements, including named types, trait solutions, union cases and record fields.

Represents a set of 'free' union cases. Used to collect the union cases referred to from an expression.

Represents a set of 'free' record field definitions. Used to collect the record field definitions referred to from an expression.

Represents a set of 'free' named type definitions. Used to collect the named type definitions referred to from a type or expression. Computed type cached by later phases (never cached type checking). Cached in expressions. Not pickled.

Represents a set of free type parameters. Computed type cached by later phases (never cached type checking). Cached in expressions. Not pickled.

Represents a set of free local values. Computed type cached by later phases (never cached type checking). Cached in expressions. Not pickled.

Represents the information saved in the assembly signature data resource for an F# assembly

The result of attempting to resolve an assembly name to a full ccu. UnresolvedCcu will contain the name of the assembly that could not be resolved.

ccu.target is null when a reference is missing in the transitive closure of static references that may potentially be required for the metadata of referenced DLLs.

Indicates that this DLL uses F# 2.0+ quotation literals somewhere. This is used to implement a restriction on static linking.

Indicates that this DLL uses F# 2.0+ quotation literals somewhere. This is used to implement a restriction on static linking.

The table of type forwarders for this assembly

A unique stamp for this assembly

A hint as to where does the code for the CCU live (e.g what was the tcConfig.implicitIncludeDir at compilation time for this DLL?)

The table of type definitions at the "root" of the assembly

The table of modules type namespaces at the "root" of the assembly

The fully qualified assembly reference string to refer to this assembly. This is persisted in quotations

Indicates if this assembly reference is unresolved

Is this a provider-injected assembly

Indicates that this DLL was compiled using the F# compiler type has F# metadata

Holds the data indicating how this assembly/module is referenced from the code being compiled.

Holds the file name for the assembly, if any

Dereference the assembly reference

A handle to the full specification of the contents of the module contained in this ccu

The short name of the assembly being referenced

Try to get the .NET Assembly, if known. May not be present for `IsFSharp` for in-memory cross-project references

Try to resolve a path into the CCU by referencing the .NET/CLI type forwarder table of the CCU

Used to make forward calls into the type/assembly loader when comparing member signatures during linking

Used to make 'forward' calls into the loader during linking

Fixup a CCU to have the given contents

Ensure the ccu is derefable in advance. Supply a path to attach to any resulting error message.

Create a CCU with the given name but where the contents have not yet been specified

Create a CCU with the given name type contents

Used at the end of compiling an assembly to get a frozen, final stable CCU for the compilation which we no longer mutate.

A relinkable handle to the contents of a compilation unit. Relinking is performed by mutation.

Represents a table of .NET CLI type forwarders for an assembly

The table of .NET CLI type forwarders for this assembly

A helper function used to link method signatures using type equality. This is effectively a forward call to the type equality logic in tastops.fs

A helper function used to link method signatures using type equality. This is effectively a forward call to the type equality logic in tastops.fs

A handle to the full specification of the contents of the module contained in this ccu

Indicates that this DLL uses pre-F#-4.0 quotation literals somewhere. This is used to implement a restriction on static linking

A helper function used to link method signatures using type equality. This is effectively a forward call to the type equality logic in tastops.fs

Triggered when the contents of the CCU are invalidated

Is the CCu an assembly injected by a type provider

Indicates that this DLL was compiled using the F# compiler type has F# metadata

A hint as to where does the code for the CCU live (e.g what was the tcConfig.implicitIncludeDir at compilation time for this DLL?)

The fully qualified assembly reference string to refer to this assembly. This is persisted in quotations

A unique stamp for this DLL

Holds the data indicating how this assembly/module is referenced from the code being compiled.

Holds the file name for the DLL, if any

Represents a complete typechecked assembly, made up of multiple implementation files.

Represents checked file, after optimization, equipped with the ability to do further optimization of expressions.

Represents a complete typechecked implementation file, including its inferred or explicit signature. CheckedImplFile (qualifiedNameOfFile, pragmas, signature, contents, hasExplicitEntryPoint, isScript, anonRecdTypeInfo)

The moduleOrNamespace represents the signature of the module. The moduleOrNamespaceContents contains the definitions of the module. The same set of entities are bound in the ModuleOrNamespace as in the ModuleOrNamespaceContents.

A named module-or-namespace-fragment definition

Indicates the module fragment is a 'rec' or 'non-rec' definition of types type modules

Indicates the module fragment is an evaluation of expression for side-effects

Indicates the module fragment is a 'let' definition

Indicates the given 'open' declarations are active

Indicates the module fragment is made of several module fragments in succession

The contents of a module-or-namespace-fragment definition

If it's `namespace Xxx.Yyy` declaration.

Scope in which open declaration is visible.

Types whose static content is opened with this declaration.

Modules or namespaces which is opened with this declaration.

Full range of the open declaration.

Syntax after 'open' as it's presented in source code.

Create a new instance of OpenDeclaration.

Represents open declaration statement.

Represents a parameter to an abstract method slot. TSlotParam(nm, ty, inFlag, outFlag, optionalFlag, attribs)

The name of the method

The method type parameters of the slot

The formal return type of the slot (regardless of the type or method instantiation)

The formal parameters of the slot (regardless of the type or method instantiation)

The (instantiated) type which the slot is logically a part of

The class type parameters of the slot

Represents an abstract method slot, or delegate signature. TSlotSig(methodName, declaringType, declaringTypeParameters, methodTypeParameters, slotParameters, returnTy)

A representation of a method in an object expression. TObjExprMethod(slotsig, attribs, methTyparsOfOverridingMethod, methodParams, methodBodyExpr, m)

Indicates the static optimization applies when a type is a struct

Indicates the static optimization applies when a type equality holds

Represents the kind of an F# core library static optimization construct

A call to a base method, e.g. 'base.OnPaint(args)'

A call to a constructor, e.g. 'new C() = new C(3)'

A call to a constructor, e.g. 'inherit C()'

A normal use of a value

Indicates a use of a value represents a call to a method that may require a .NET 2.0 constrained call. A constrained call is only used for calls where

Indicates how a value, function or member is being used at a particular usage point.

let res = a in b;res

a ; b

Represents the kind of sequential operation, i.e. "normal" or "to a before returning b"

In C syntax this is: *localv_ptr = e

In C syntax this is: localv = e, note == *(&localv) = e == LAddrOf; LByrefSet

In C syntax this is: *localv_ptr

In C syntax this is: &localv

Indicates what kind of pointer operation this is.

Evaluate start once type end multiple times, loop up

Evaluate start type end once, loop down

Evaluate start type end once, loop up

Represents the kind of looping operation.

Marks the compiled form of a 'for ... in ... do ' expression

Represents the kind of looping operation.

If this is Some ty then it indicates that a .NET 2.0 constrained call is required, with the given type as the static type of the object argument.

Normal record construction

We're in an explicit constructor. The purpose of the record expression is to fill in the fields of a pre-created but uninitialized object

Represents the kind of record construction operation.

IL method calls. isProperty -- used for quotation reflection, property getters & setters noTailCall - DllImport? if so don't tailcall retTypes -- the types of pushed values, if any

Operation nodes representing C-style operations on byrefs type mutable vals (l-values)

Pseudo method calls. This is used for overloaded operations like op_Addition.

Used for state machine compilation

Used for state machine compilation

Used for state machine compilation

Represents a "rethrow" operation. May not be rebound, or used outside of try-finally, expecting a unit argument

Conversion node, compiled via type-directed translation or to box/unbox

Generate a ldflda on an 'a ref.

IL assembly code - type list are the types pushed on the stack

An operation representing a field-get from an F# tuple value.

An operation representing a field-set on an F# exception value.

An operation representing a field-get from an F# exception value.

An operation representing a field-get from a union value. The value is not assumed to have been proven to be of the corresponding union case.

An operation representing a field-get from a union value, where that value has been proven to be of the corresponding union case.

An operation representing a field-get from a union value, where that value has been proven to be of the corresponding union case.

An operation representing a coercion that proves a union value is of a particular union case. This is not a test, its simply added proof to enable us to generate verifiable code for field access on union types

An operation representing getting an integer tag for a union value representing the union case number

An operation representing getting the address of a record field

An operation representing getting a record or class field

An operation representing setting a record or class field

Construct a record or object-model value. The ValRef is for self-referential class constructors, otherwise it indicates that we're in a constructor type the purpose of the expression is to fill in the fields of a pre-created but uninitialized object, type to assign the initialized version of the object into the optional mutable cell pointed to be the given value.

An operation representing a lambda-encoded try/finally

An operation representing a lambda-encoded try/with

An operation representing a lambda-encoded integer for-loop

An operation representing a lambda-encoded while loop. The special while loop marker is used to mark compilations of 'foreach' expressions

Constant uint16 arrays (used for parser tables)

Constant byte arrays (used for parser tables type other embedded data)

An operation representing the creation of an array value

An operation representing the get of a property from an anonymous record

An operation representing the creation of an anonymous record

An operation representing the creation of a tuple value

An operation representing the creation of an exception value using an F# exception declaration

An operation representing the creation of a union value of the particular union case

Indicates a debug point should be placed prior to the expression.

An instance of a link node occurs for every use of a recursively bound variable. When type-checking the recursive bindings a dummy expression is stored in the mutable reference cell. After type checking the bindings this is replaced by a use of the variable, perhaps at an appropriate type instantiation. These are immediately eliminated on subsequent rewrites.

Indicates a free choice of typars that arises due to minimization of polymorphism at let-rec bindings. These are resolved to a concrete instantiation on subsequent rewrites.

Used in quotation generation to indicate a witness argument, spliced into a quotation literal. For example: let inline f x = <@ sin x @> needs to pass a witness argument to `sin x`, captured from the surrounding context, for the witness-passing version of the code. Thus the QuotationTranslation type IlxGen makes the generated code as follows: f(x) { return Deserialize(<@ sin _spliceHole @>, [| x |]) } f$W(witnessForSin, x) { return Deserialize(<@ sin$W _spliceHole1 _spliceHole2 @>, [| WitnessArg(witnessForSin), x |]) } where _spliceHole1 will be the location of the witness argument in the quotation data, type witnessArg is the lambda for the witness

Indicates the expression is a quoted expression tree.

An intrinsic applied to some (strictly evaluated) arguments A few of intrinsics (TOp_try, TOp.While, TOp.IntegerForLoop) expect arguments kept in a normal form involving lambdas

If we statically know some information then in many cases we can use a more optimized expression This is primarily used by terms in the standard library, particularly those implementing overloaded operators.

Matches are a more complicated form of "let" with multiple possible destinations type possibly multiple ways to get to each destination. The first range is that of the expression being matched, which is used as the range for all the decision making type binding that happens during the decision tree execution.

Bind a value.

Bind a recursive set of values.

Applications. Applications combine type type term applications, type are normalized so that sequential applications are combined, so "(f x y)" becomes "f [[x];[y]]". The type attached to the function is the formal function type, used to ensure we don't build application nodes that over-apply when instantiating at function types.

Type lambdas. These are used for the r.h.s. of polymorphic 'let' bindings type for expressions that implement first-class polymorphic values.

Lambda expressions. Why multiple vspecs? A Expr.Lambda taking multiple arguments really accepts a tuple. But it is in a convenient form to be compile accepting multiple arguments, e.g. if compiled as a toplevel static method.

Sequence expressions, used for "a;b", "let a = e in b;a" type "a then b" (the last an OO constructor).

Reference a value. The flag is only relevant if the value is an object model member type indicates base calls type special uses of object constructors.

A constant expression.

Get the mark/range/position information from an expression

Represents an expression in the typed abstract syntax

Records the extra metadata stored about typars for type parameters compiled as "real" IL type parameters, specifically for values with ValReprInfo. Any information here is propagated from signature through to the compiled code.

The range of the signature/implementation counterpart to this argument, if any

The name for the argument at this position, if any

The attributes for the argument

Records the "extra information" for an argument compiled as a real method argument, specifically the argument name type attributes.

ValReprInfo (typars, args, result)

Get the total number of arguments

Get the number of type parameters of the value

Get the number of curried arguments of the value

Get the kind of each type parameter

Indicates if the value has no arguments - neither type parameters nor value arguments

Get the number of tupled arguments in each curried argument position

Get the extra information about the arguments for the value

Records the "extra information" for a value compiled as a method (rather than a closure or a local), including argument names, attributes etc.

Get the index of the active pattern element within the overall active pattern

Get a reference to the value for the active pattern being referred to

Get a reference to the value for the active pattern being referred to

Get the full information about the active pattern being referred to

Represents a reference to an active pattern element. The integer indicates which choice in the target set is being selected by this item.

The value being bound

The expression the value is being bound to

The information about whether to emit a sequence point for the binding

A binding of a variable to an expression, as in a `let` binding or similar -- val: The value being bound -- expr: The expression to execute to get the value -- debugPoint: The debug point for the binding

A collection of simultaneous bindings

A target of a decision tree. Can be thought of as a little function, though is compiled as a local block. -- boundVals - The values bound at the target, matching the valuesin the TDSuccess -- targetExpr - The expression to evaluate if we branch to the target -- debugPoint - The debug point for the target -- isStateVarFlags - Indicates which, if any, of the values are represents as state machine variables

Used in error recovery

Test.ActivePatternCase(activePatExpr, activePatResTys, activePatRetKind, activePatIdentity, idx, activePatInfo) Run the active pattern type bind a successful result to a variable in the remaining tree. activePatExpr -- The active pattern function being called, perhaps applied to some active pattern parameters. activePatResTys -- The result types (case types) of the active pattern. activePatRetKind -- Indicating what is returning from the active pattern activePatIdentity -- The value type the types it is applied to. If there are any active pattern parameters then this is empty. idx -- The case number of the active pattern which the test relates to. activePatternInfo -- The extracted info for the active pattern.

IsInst(source, target) Test if the input to a decision tree is an instance of the given type

Test if the input to a decision tree is null

Test if the input to a decision tree is the given constant value

Test if the input to a decision tree is an array of the given length

Test if the input to a decision tree matches the given union case

Returning bool

Returning `_ voption`

Returning `_ option` or `Choice<_, _, .., _>`

Indicating what is returning from an AP

Get the discriminator associated with the case

Get the decision tree or a successful test

Represents a test type a subsequent decision tree

TDBind(binding, body) Bind the given value through the remaining cases of the dtree. These arise from active patterns type some optimizations to prevent repeated computations in decision trees. binding -- the value type the expression it is bound to body -- the rest of the decision tree

TDSuccess(results, targets) Indicates the decision tree has terminated with success, transferring control to the given target with the given parameters. results -- the expressions to be bound to the variables at the target target -- the target number for the continuation

TDSwitch(input, cases, default, range) Indicates a decision point in a decision tree. input -- The expression being tested. If switching over a struct union this must be the address of the expression being tested. cases -- The list of tests type their subsequent decision trees default -- The default decision tree, if any range -- (precise documentation needed)

Decision trees. Pattern matching has been compiled down to a decision tree by this point. The right-hand-sides (actions) of a decision tree by this point. The right-hand-sides (actions) of the decision tree are labelled by integers that are unique for that particular tree.

Constants in expressions

AttribNamedArg(name, type, isField, value)

AttribExpr(source, evaluated)

We keep both source expression type evaluated expression around to help intellisense type signature printing

Attrib(tyconRef, kind, unnamedArgs, propVal, appliedToAGetterOrSetter, targetsOpt, range)

Indicates an attribute refers to a type defined in an imported F# assembly

Indicates an attribute refers to a type defined in an imported .NET assembly

Raising a measure to a rational power

The unit of measure '1', e.g. float = float<1>

An inverse of a units of measure expression

A product of two units of measure

A constant, leaf unit-of-measure such as 'kg' or 'm'

A variable unit-of-measure

Represents a unit of measure in the typed AST

Some constant, e.g. true or false for tupInfo

Get the ILTypeRef for the generated type implied by the anonymous type

Get the core of the display name for one of the fields of the anonymous record, by index

Get the display name for one of the fields of the anonymous record, by index

Create an AnonRecdTypeInfo from the basic data

Represents the information identifying an anonymous record

Indicates the type is a unit-of-measure expression being used as an argument to a type or member

Indicates the type is a variable type, whether declared, generalized or an inference type parameter 'flags' is a placeholder for future features, in particular nullness analysis

Indicates the type is a non-F#-visible type representing a "proof" that a union value belongs to a particular union case These types are not user-visible type will never appear as an inferred type. They are the types given to the temporaries arising out of pattern matching on union values.

Indicates the type is a function type. 'flags' is a placeholder for future features, in particular nullness analysis.

Indicates the type is a tuple type. elementTypes must be of length 2 or greater.

Indicates the type is an anonymous record type whose compiled representation is located in the given assembly

Indicates the type is built from a named type and a number of type arguments. 'flags' is a placeholder for future features, in particular nullness analysis

Indicates the type is a universal type, only used for types of values type members

For now, used only as a discriminant in error message. See https://github.com/dotnet/fsharp/issues/2561

Represents a type in the typed abstract syntax

we know we don't care

we know that there is no extra null value in the type

we know that there is an extra null value in the type

Get a reference to the type containing this record field

Get the Entity for the type containing this record field

Try to dereference the reference

Get the signature range of the record field

Dereference the reference

Get the declaration range of the record field

Get the attributes associated with the compiled property of the record field

Get the name of the field

Get the name of the field, with backticks added for non-identifier names

Get the definition range of the record field

Represents a reference to a field in a record, class or struct

Dereference the reference to the union case

Get a reference to the type containing this union case

Get the Entity for the type containing this union case

Try to dereference the reference

Get the signature range of the union case

Get the resulting type of the union case

Get the range of the union case

Get the index of the union case amongst the cases

Get the definition range of the union case

Get the name of this union case

Get the attributes associated with the union case

Get the fields of the union case

Get a field of the union case by index

Represents a reference to a case of a union type

Indicates a reference to something bound in another CCU

Indicates a reference to something bound in this CCU

Get or set the signature for the value's XML documentation

Get the declared documentation for the value

Records the "extra information" for a value compiled as a method. This indicates the number of arguments in each position for a curried function.

The type of the value. May be a TType_forall for a generic value. May be a type variable or type containing type variables during type inference.

Dereference the ValRef to a Val option.

The parent type or module, if any (ParentNone for expression bindings type parameters)

Get the type of the value after removing any generic type parameters

A unique stamp within the context of this invocation of the compiler process

Indicates whether the inline declaration for the value indicate that the value should be inlined?

The quotation expression associated with a value given the [<ReflectedDefinition>] tag

Get the information about a recursive value used during type inference

Get the public path to the value, if any? Should be set if type only if IsMemberOrModuleBinding is set.

Get the name of the value, assuming it is compiled as a property. - If this is a property then this is 'Foo' - If this is an implementation of an abstract slot then this is the name of the property implemented by the abstract slot

Indicates if this value allows the use of an explicit type instantiation (i.e. does it itself have explicit type arguments, or does it have a signature?)

Get the number of 'this'/'self' object arguments for the member. Instance extension members return '1'.

Is this a member, if so some more data about the member.

Get the apparent parent entity for a member

Indicates if this is inferred to be a method or function that definitely makes no critical tailcalls?

The value of a value or member marked with [<LiteralAttribute>]

Indicates if this value was declared to be a type function, e.g. "let f<'a> = typeof<'a>"

Indicates whether this value represents a property setter.

Indicates whether this value represents a property getter.

Indicates if this value was a member declared 'override' or an implementation of an interface slot

Indicates if this value is declared 'mutable'

Indicates if this is an F#-defined value in a module, or an extension member, but excluding compiler generated bindings from optimizations

Indicates if this is a 'this' value for a member?

Is this a member definition or module definition?

Indicates if this is a member

Indicates if this is an F#-defined instance member. Note, the value may still be (a) an extension member or (b) type abstract slot without a true body. These cases are often causes of bugs in the compiler.

Indicates if this is a member generated from the de-sugaring of 'let' function bindings in the implicit class syntax?

Indicates if this is a constructor member generated from the de-sugaring of implicit constructor for a class type?

Determines if the values is implied by another construct, e.g. a `IsA` property is implied by the union case for A

Indicates if this is an F#-defined extension member

Indicates if this member is an F#-defined dispatch slot.

Indicates if this is a 'this' value for an implicit ctor?

Indicates if this is an F#-defined 'new' constructor member

Indicates whether this value was generated by the compiler. Note: this is true for the overrides generated by hash/compare augmentations

Is this represented as a "top level" static binding (i.e. a static field, static member, instance member), rather than an "inner" binding that may result in a closure.

Indicates if this is a 'base' value?

Get the inline declaration on the value

Get the inline declaration on a parameter or other non-function-declaration value, used for optimization

Gets the dispatch slots implemented by this method, either 0 or 1

Get the type of the value including any generic type parameters

The display name of the value or method but without operator names decompiled type without backticks etc. This is very close to LogicalName except that properties have get_ removed and interface implementation methods report the name of the implemented method. Note: avoid using this, we would like to remove it. All uses should be code-reviewed and gradually eliminated in favour of DisplayName, DisplayNameCore or LogicalName. Note: here "Core" means "without added backticks or parens" Note: here "Mangled" means "op_Addition" - If this is a property --> Foo - If this is an implementation of an abstract slot then this is the name of the method implemented by the abstract slot - If this is an active pattern --> |A|_| - If this is an operator --> op_Addition - If this is an identifier needing backticks --> A-B

The display name of the value or method with operator names decompiled but without backticks etc. Note: here "Core" means "without added backticks or parens"

The full text for the value to show in error messages type to use in code. This includes backticks, parens etc. - If this is a property --> Foo - If this is an implementation of an abstract slot then this is the name of the method implemented by the abstract slot - If this is an active pattern --> (|A|_|) - If this is an operator --> (+) - If this is an identifier needing backticks --> ``A-B`` - If this is a base value --> base - If this is a value named ``base`` --> ``base``

Dereference the ValRef to a Val.

Get the actual parent entity for the value (a module or a type), i.e. the entity under which the value will appear in compiled code. For extension members this is the module where the extension member is declared. This may fail for expression-bound values and parameters.

The name of the method in compiled code (with some exceptions where ilxgen.fs decides not to use a method impl)

Indicates if this is a 'base' or 'this' value?

Get the declared attributes for the value

Get the apparent parent entity for the value, i.e. the entity under with which the value is associated. For extension members this is the nominal type the member extends. For other values it is just the actual parent.

Get the value representing the accessibility of an F# type definition or module.

References are either local or nonlocal

Represents a type definition reference in the typed abstract syntax.

Represents a module-or-namespace reference in the typed abstract syntax.

Indicates a reference to something bound in another CCU

Indicates a reference to something bound in this CCU

The XML documentation sig-string of the entity, if any, to use to lookup an .xml doc file. This also acts as a cache for this sig-string computation.

The XML documentation of the entity, if any. If the entity is backed by provided metadata then this _does_ include this documentation. If the entity is backed by Abstract IL metadata or comes from another F# assembly then it does not (because the documentation will get read from an XML file).

Get the union cases type other union-type information for a type, if any

Get the union cases for a type, if any, as a list

Get the union cases for a type, if any

The information about the r.h.s. of a type definition, if any. For example, the r.h.s. of a union or record type.

Get the value representing the accessibility of the r.h.s. of an F# type definition.

The kind of the type definition - is it a measure definition or a type definition?

The logical contents of the entity when it is a type definition.

Indicates if this entity is an F# type abbreviation definition

Get the type parameters for an entity that is a type declaration, otherwise return the empty list.

The on-demand analysis about whether the entity has the IsReadOnly attribute

The on-demand analysis about whether the entity has the IsByRefLike attribute

The on-demand analysis about whether the entity is assumed to be a readonly struct

Dereference the TyconRef to a Tycon option.

Get a list of all instance fields for F#-defined record, struct type class fields in this type definition, excluding compiler-generate fields.

Get a list of all fields for F#-defined record, struct type class fields in this type definition, including static fields, but excluding compiler-generate fields.

A unique stamp for this module, namespace or type definition within the context of this compilation. Note that because of signatures, there are situations where in a single compilation the "same" module, namespace or type may have two distinct Entity objects that have distinct stamps.

The signature definition location of the namespace, module or type

The resolved target of the reference

The code location where the module, namespace or type is defined.

Get a blob of data indicating how this type is nested in other namespaces, modules or types.

Indicates if we have pre-determined that a type definition has a default constructor.

The logical contents of the entity when it is a module or namespace fragment.

Gets the immediate members of an F# type definition, excluding compiler-generated ones. Note: result is alphabetically sorted, then for each name the results are in declaration order

Gets all immediate members of an F# type definition keyed by name, including compiler-generated ones. Note: result is a indexed table, type for each name the results are in reverse declaration order

The name of the namespace, module or type, possibly with mangling, e.g. List`1, List or FailureException

Indicate if this is a type whose r.h.s. is known to be a union type definition.

Indicates if this entity is an F# type abbreviation definition

Indicates if this is a struct or enum type definition, i.e. a value type definition, including struct records and unions

Indicates if the entity is an erased provided type definition that incorporates a static instantiation (type therefore in some sense compiler generated)

Indicates if the reference has been resolved

Indicates if this is an F# type definition whose r.h.s. is known to be a record type definition.

Indicates if the entity is a provided namespace fragment

Indicates if the entity is a generated provided type definition, i.e. not erased.

Indicates if the entity is an erased provided type definition

Indicates if the entity is a provided namespace fragment

Indicates the type prefers the "tycon<a, b>" syntax for display etc.

Indicates if the entity is a namespace

Indicates the "tycon blob" is actually a module

Indicates if the entity is an F# module definition

Indicates if this is an F# type definition which is one of the special types in FSharp.Core.dll like 'float<_>' which defines a measure type with a relation to an existing non-measure type as a representation.

Indicates if the reference is a local reference

Indicate if this is a type definition backed by Abstract IL metadata.

Indicates if this is a .NET-defined struct or enum type definition, i.e. a value type definition

Indicates if this is a .NET-defined enum type definition

Indicates if this is an F# type definition whose r.h.s. definition is unknown (i.e. a traditional ML 'abstract' type in a signature, which in F# is called a 'unknown representation' type).

Indicates if this is an F#-defined value type definition, including struct records and unions

Indicates if this is an F# type definition known to be an F# class, interface, struct, delegate or enum. This isn't generally a particularly useful thing to know, it is better to use more specific predicates.

Indicates if this is an F#-defined interface type definition

Indicates if the entity represents an F# exception declaration.

Indicates if this is an F#-defined enum type definition

Indicates if this is an F#-defined delegate type definition

Indicates if the entity is erased, either a measure definition, or an erased provided type definition

Indicates if this is an enum type definition

Indicates if this is an F# type definition which is one of the special types in FSharp.Core.dll which uses an assembly-code representation for the type, e.g. the primitive array type constructor.

Gets the immediate interface definitions of an F# type definition. Further interfaces may be supported through class type interface inheritance.

Gets the immediate interface types of an F# type definition. Further interfaces may be supported through class type interface inheritance.

The identifier at the point of declaration of the type definition.

Get the Abstract IL metadata for this type definition, assuming it is backed by Abstract IL metadata.

Get the Abstract IL scope, nesting type metadata for this type definition, assuming it is backed by Abstract IL metadata.

Indicates if we have pre-determined that a type definition has a self-referential constructor using 'as x'

Gets any implicit hash/equals (with comparer argument) methods added to an F# record, union or struct type definition.

Gets any implicit hash/equals methods added to an F# record, union or struct type definition.

Gets any implicit CompareTo (with comparer argument) methods added to an F# record, union or struct type definition.

Gets any implicit CompareTo methods added to an F# record, union or struct type definition.

Get the blob of information associated with an F# object-model type definition, i.e. class, interface, struct etc.

The information about the r.h.s. of an F# exception definition, if any.

The display name of the namespace, module or type with <_, _, _> added for generic types, including static parameters Backticks are added implicitly for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, including static parameters Backticks are added implicitly for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, not including static parameters No backticks are added for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, not including static parameters Backticks are added implicitly for entities with non-identifier names

Dereference the TyconRef to a Tycon. Amortize the cost of doing this. This path should not allocate in the amortized case

Demangle the module name, if FSharpModuleWithSuffix is used

The implementation definition location of the namespace, module or type

Gets the data indicating the compiled representation of a named type or module in terms of Abstract IL data structures.

Gets the data indicating the compiled representation of a type or module in terms of Abstract IL data structures.

Get the cache of the compiled ILTypeRef representation of this module or type.

The compiled name of the namespace, module or type, e.g. FSharpList`1, ListModule or FailureException

Get a blob of data indicating how this type is nested inside other namespaces, modules type types.

Get a blob of data indicating how this type is nested inside other namespaces, modules type types.

Is the destination assembly available?

The F#-defined custom attributes of the entity, if any. If the entity is backed by Abstract IL or provided metadata then this does not include any attributes from those sources.

Get a list of all instance fields for F#-defined record, struct type class fields in this type definition. including hidden fields from the compilation of implicit class constructions.

Get a list of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get an array of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get a table of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get the value representing the accessibility of an F# type definition or module.

Get the type parameters for an entity that is a type declaration, otherwise return the empty list. Lazy because it may read metadata, must provide a context "range" in case error occurs reading metadata.

Set the on-demand analysis about whether the entity has the IsReadOnly attribute

Set the on-demand analysis about whether the entity has the IsByRefLike attribute

Set the on-demand analysis about whether the entity is assumed to be a readonly struct

Resolve the reference

Get a union case of a type by name

Get a field by name.

Get a field by index in definition order

Get the path into the CCU referenced by the nonlocal reference.

Get the mangled name of the last item in the path of the nonlocal reference.

Get the all-but-last names of the path of the nonlocal reference.

Dereference the nonlocal reference, type raise an error if this fails.

Get the CCU referenced by the nonlocal reference.

Get the name of the assembly referenced by the nonlocal reference.

Try to find the entity corresponding to the given path, using type-providers to link the data

Try to find the entity corresponding to the given path in the given CCU

Try to link a non-local entity reference to an actual entity

Represents an index into the namespace/module structure of an assembly

Represents the path information for a reference to a value or member in another assembly, disassociated from any particular reference.

The name of the value, or the full signature of the member

A reference to the entity containing the value or member. This will always be a non-local reference

For debugging

Get the thunk for the assembly referred to

Get the name of the assembly referred to

For debugging

Gets updated with 'true' if an abstract slot is implemented in the file being typechecked. Internal only.

Updated with the full implemented slotsig after interface implementation relation is checked

The parent type. For an extension member this is the type being extended

Represents the extra information stored for a member

See vflags section further below for encoding/decodings here

Mutable for unpickle linkage

Mutable for unpickle linkage

Mutable for unpickle linkage

Get the signature for the value's XML documentation

Get the signature for the value's XML documentation

Get the declared documentation for the value

Records the "extra information" for display purposes for expression-level function definitions that may be compiled as closures (that is are not necessarily compiled as top-level methods).

Records the "extra information" for a value compiled as a method. This indicates the number of arguments in each position for a curried functions, type relates to the F# spec for arity analysis. For module-defined values, the currying is based on the number of lambdas, type in each position the elements are based on attempting to deconstruct the type of the argument as a tuple-type. The field is mutable because arities for recursive values are only inferred after the r.h.s. is analyzed, but the value itself is created before the r.h.s. is analyzed. TLR also sets this for inner bindings that it wants to represent as "top level" bindings.

The type of the value. May be a TType_forall for a generic value. May be a type variable or type containing type variables during type inference.

Get the generic type parameters for the value

The parent type or module, if any (None for expression bindings type parameters)

Get the type of the value after removing any generic type parameters

A unique stamp within the context of this invocation of the compiler process

Range of the definition (signature) of the value, used by Visual Studio

Indicates whether the inline declaration for the value indicates that the value should be inlined.

The quotation expression associated with a value given the [<ReflectedDefinition>] tag

Get the information about the value used during type inference

The place where the value was defined.

Get the public path to the value, if any? Should be set if type only if IsMemberOrModuleBinding is set.

The name of the property. - If this is a property then this is 'Foo'

Indicates if this value allows the use of an explicit type instantiation (i.e. does it itself have explicit type arguments, or does it have a signature?)

Get the number of 'this'/'self' object arguments for the member. Instance extension members return '1'.

Is this a member, if so some more data about the member. Note, the value may still be (a) an extension member or (b) type abstract slot without a true body. These cases are often causes of bugs in the compiler.

Get the apparent parent entity for a member

Indicates if this is inferred to be a method or function that definitely makes no critical tailcalls?

The name of the method. - If this is a property then this is 'get_Foo' or 'set_Foo' - If this is an implementation of an abstract slot then this is the name of the method implemented by the abstract slot - If this is an extension member then this will be the simple name

The value of a value or member marked with [<LiteralAttribute>]

Indicates if this value was a member declared 'override' or an implementation of an interface slot

Indicates if this is declared 'mutable'

Indicates if this is an F#-defined value in a module, or an extension member, but excluding compiler generated bindings from optimizations

Indicates if this is a 'this' value for a member?

Is this a member definition or module definition?

Indicates if this is a member

Indicates if a value is linked to backing data yet. Only used during unpickling of F# metadata.

Indicates if this is a member, excluding extension members

Indicates if this is an F#-defined instance member. Note, the value may still be (a) an extension member or (b) type abstract slot without a true body. These cases are often causes of bugs in the compiler.

Indicates if this is a member generated from the de-sugaring of 'let' function bindings in the implicit class syntax?

Indicates if this is a constructor member generated from the de-sugaring of implicit constructor for a class type?

Determines if the values is implied by another construct, e.g. a `IsA` property is implied by the union case for A

Indicates if the value is pinned/fixed

Indicates if this is an F#-defined extension member

Indicates if this member is an F#-defined dispatch slot.

Indicates if this is a 'this' value for an implicit ctor?

Indicates if this is an F#-defined 'new' constructor member

Indicates whether this value was generated by the compiler. Note: this is true for the overrides generated by hash/compare augmentations

Indicates if this is something compiled into a module, i.e. a user-defined value, an extension member or a compiler-generated value

Is this represented as a "top level" static binding (i.e. a static field, static member, instance member), rather than an "inner" binding that may result in a closure. This is implied by IsMemberOrModuleBinding, however not vice versa, for two reasons. Some optimizations mutate this value when they decide to change the representation of a binding to be IsCompiledAsTopLevel. Second, even immediately after type checking we expect some non-module, non-member bindings to be marked IsCompiledAsTopLevel, e.g. 'y' in 'let x = let y = 1 in y + y' (NOTE: check this, don't take it as gospel)

Indicates if the backing field for a static value is suppressed.

Indicates if this is a compiler-generated class constructor member

Indicates if this is a 'base' value?

Get the inline declaration on the value

Get the inline declaration on a parameter or other non-function-declaration value, used for optimization

Gets the dispatch slots implemented by this method

Indicates if the value will ignore byref scoping rules

Indicates if the value has a signature file counterpart

Indicates if this is ever referenced?

Indicates that this value's getter or setter are generated by the compiler

Get the type of the value including any generic type parameters

The display name of the value or method but without operator names decompiled type without backticks etc. This is very close to LogicalName except that properties have get_ removed and interface implementation methods report the name of the implemented method. Note: avoid using this, we would like to remove it. All uses should be code-reviewed and gradually eliminated in favour of DisplayName, DisplayNameCore or LogicalName. Note: here "Core" means "without added backticks or parens" Note: here "Mangled" means "op_Addition" - If this is a property --> Foo - If this is an implementation of an abstract slot then this is the name of the method implemented by the abstract slot - If this is an active pattern --> |A|_| - If this is an operator --> op_Addition - If this is an identifier needing backticks --> A-B

The display name of the value or method with operator names decompiled but without backticks etc. Note: here "Core" means "without added backticks or parens"

The full text for the value to show in error messages type to use in code. This includes backticks, parens etc. - If this is a property --> Foo - If this is an implementation of an abstract slot then this is the name of the method implemented by the abstract slot - If this is an active pattern --> (|A|_|) - If this is an operator --> (+) - If this is an identifier needing backticks --> ``A-B`` - If this is a base value --> base - If this is a value named ``base`` --> ``base``

Range of the definition (implementation) of the value, used by Visual Studio

Get the actual parent entity for the value (a module or a type), i.e. the entity under which the value will appear in compiled code. For extension members this is the module where the extension member is declared.

Indicates if this is a 'base' or 'this' value?

Get the declared attributes for the value

Records the "extra information" for parameters in implementation files if we've been able to correlate them with lambda arguments.

Get the apparent parent entity for the value, i.e. the entity under with which the value is associated. For extension members this is the nominal type the member extends. For other values it is just the actual parent.

How visible is this value, function or member?

Set all the data on a value

Create a new value with empty, unlinked data. Only used during unpickling of F# metadata.

Create a new value with the given backing data. Only used during unpickling of F# metadata.

Link a value based on empty, unlinked data to the given data. Only used during unpickling of F# metadata.

The partial information used to index the methods of all those in a ModuleOrNamespace.

The full information used to identify a specific overloaded method amongst all those in a ModuleOrNamespace.

The name of the method in compiled code (with some exceptions where ilxgen.fs decides not to use a method impl) - If this is a property then this is 'get_Foo' or 'set_Foo' - If this is an implementation of an abstract slot then this may be a mangled name - If this is an extension member then this will be a mangled name - If this is an operator then this is 'op_Addition'

Custom attributes attached to the value. These contain references to other values (i.e. constructors in types). Mutable to fixup these value references after copying a collection of values.

XML documentation signature for the value

Is the value actually an instance method/property/event that augments a type, type if so what name does it take in the IL? MUTABILITY: for unpickle linkage

the signature xml doc for an item in an implementation file.

XML documentation attached to a value. MUTABILITY: for unpickle linkage

How visible is this? MUTABILITY: for unpickle linkage

Records the "extra information" for parameters in implementation files if we've been able to correlate them with lambda arguments.

Records the "extra information" for display purposes for expression-level function definitions that may be compiled as closures (that is are not necessarily compiled as top-level methods).

Records the "extra information" for a value compiled as a method (rather than a closure or a local), including argument names, attributes etc.

What is the original, unoptimized, closed-term definition, if any? Used to implement [<ReflectedDefinition>]

If this field is populated, this is the implementation range for an item in a signature, otherwise it is the signature range for an item in an implementation

MUTABILITY: for unpickle linkage

The full type of the value for the purposes of linking. May be None for non-members, since they can't be overloaded.

The partial information used to index the value in a ModuleOrNamespace.

The full information used to identify a specific overloaded method amongst all those in a ModuleOrNamespace.

Indicates the total argument count of the member.

Indicates the logical name of the member.

Indicates if the member is an override.

The name of the type with which the member is associated. None for non-member values.

The partial information used to index the methods of all those in a ModuleOrNamespace.

Indicates a trait is solved by a 'fake' instance of an operator, like '+' on integers

ClosedExprSln expr Indicates a trait is solved by an erased provided expression

ILMethSln(ty, extOpt, ilMethodRef, minst) Indicates a trait is solved by a .NET method. ty -- the type type its instantiation extOpt -- information about an extension member, if any ilMethodRef -- the method that solves the trait constraint minst -- the generic method instantiation staticTyOpt -- the static type governing a static virtual call, if any

Indicates a trait is solved by an F# anonymous record field.

FSRecdFieldSln(tinst, rfref, isSetProp) Indicates a trait is solved by an F# record field. tinst -- the instantiation of the declaring type rfref -- the reference to the record field isSetProp -- indicates if this is a set of a record field

FSMethSln(ty, vref, minst) Indicates a trait is solved by an F# method. ty -- the type type its instantiation vref -- the method that solves the trait constraint staticTyOpt -- the static type governing a static virtual call, if any minst -- the generic method instantiation

Represents the solution of a member constraint during inference.

Indicates the signature of a member constraint. Contains a mutable solution cell to store the inferred solution of the constraint. And a mutable source cell to store the name of the type or member that defined the constraint.

Get or set the solution of the member constraint during inference

Get the types that may provide solutions for the traits

Get or set the solution of the member constraint during inference

Get the member name associated with the member constraint. For preop

Get the member flags associated with the member constraint.

Get the return type recorded in the member constraint.

Get the raw object and argument types recorded in the member constraint. This includes the object instance type instance members. This may be empty for property traits e.g. "(static member Zero: ^T)" or unit-taking methods "(static member get_Zero: unit -> ^T)" See also extension members GetCompiledArgumentTypes and GetLogicalArgumentTypes

The member kind is irrelevant to the logical properties of a trait. However it adjusts the extension property MemberDisplayNameCore

The specification of a member constraint that must be solved

Get the return type recorded in the member constraint.

Get the member name associated with the member constraint.

An anti-constraint indicating that ref structs (e.g. Span<>) are allowed here

A constraint that a type is .NET unmanaged type

A constraint that a type is a delegate from the given tuple of args to the given return type

A constraint that a type does not have the Equality(false) attribute, or is not a structural type with this attribute, with special rules for some known structural container types

A constraint that a type implements IComparable, with special rules for some known structural container types

A constraint that a type is an enum with the given underlying

A constraint that a type has a parameterless constructor

A constraint that a type is a simple choice between one of the given ground types. Only arises from 'printf' format strings. See format.fs

A constraint that a type is a reference type

A constraint that a type is a non-Nullable value type These are part of .NET's model of generic constraints, type in order to generate verifiable code we must attach them to F# generalized type variables as well.

A constraint that a type has a member with the given signature

A constraint that a type doesn't support nullness

A constraint that a type has a 'null' value

A constraint for a default value for an inference type variable should it be neither generalized nor solved

A constraint that a type is a subtype of the given type

Represents a constraint on a type parameter or type

The optional data for the type parameter

A cached TAST type used when this type variable is used as type.

An inferred equivalence for a type inference variable.

The unique stamp of the type parameter MUTABILITY: for linking when unpickling

The flag data for the type parameter

MUTABILITY: we set the names of generalized inference type parameters to make the look nice for IL code generation The identifier for the type parameter

Get the XML documentation for the type parameter

Indicates if the type variable has a static "head type" requirement, i.e. ^a variables used in FSharp.Core type member constraints.

The unique stamp of the type parameter

The inferred equivalence for the type inference variable, if any.

Indicates if the type variable can be solved or given new constraints. The status of a type variable generally always evolves towards being either rigid or solved.

The range of the identifier for the type parameter definition

The name of the type parameter

Indicates whether a type variable can be instantiated by types or units-of-measure.

Indicates if a type variable has been solved.

Indicates if a type variable has been linked. Only used during unpickling of F# metadata.

Indicates if the type inference variable was generated after an error when type checking expressions or patterns

Indicates whether a type variable is erased in compiled .NET IL code, i.e. whether it is a unit-of-measure variable

Indicates if the type variable is compiler generated, i.e. is an implicit type inference variable

Indicates that whether this type parameter is a compat-flex type parameter (i.e. where "expr :> tp" only emits an optional warning)

The identifier for a type parameter definition

Get the IL name of the type parameter

Indicates that whether or not a generic type definition satisfies the equality constraint is dependent on whether this type variable satisfies the equality constraint.

Indicates if a type parameter is needed at runtime type may not be eliminated

Indicates the display name of a type variable

The inferred constraints for the type inference variable, if any

Indicates that whether or not a generic type definition satisfies the comparison constraint is dependent on whether this type variable satisfies the comparison constraint.

The declared attributes of the type parameter. Empty for type inference variables type parameters from .NET.

Set whether this type parameter is flexible for 'supports null' constraint, e.g. in the case of assignment to a mutable value

Sets whether a type variable has a static requirement

Sets the rigidity of a type variable

Set whether this type parameter is a compat-flex type parameter (i.e. where "expr :> tp" only emits an optional warning)

Sets the identifier associated with a type variable

Set the IL name of the type parameter

Sets whether the equality constraint of a type definition depends on this type variable

Sets whether a type variable is required at runtime

Adjusts the constraints associated with a type variable

Sets whether a type variable is compiler generated

Sets whether the comparison constraint of a type definition depends on this type variable

Set the attributes on the type parameter

Creates a type variable that contains empty data, type is not yet linked. Only used during unpickling of F# metadata.

Creates a type variable based on the given data. Only used during unpickling of F# metadata.

Marks the typar as being contravariant

Links a previously unlinked type variable to the given data. Only used during unpickling of F# metadata.

Links a previously unlinked type variable to the given data. Only used during unpickling of F# metadata.

A declared generic type/measure parameter, or a type/measure inference variable.

Set to true if the typar is contravariant, i.e. declared as <in T> in C#

The declared attributes of the type parameter. Empty for type inference variables.

The inferred constraints for the type parameter or inference variable.

The documentation for the type parameter. Empty for inference variables. MUTABILITY: for linking when unpickling

MUTABILITY: we set the names of generalized inference type parameters to make the look nice for IL code generation The storage for the IL name for the type parameter.

Represents less-frequently-required data about a type parameter of type inference variable

Indicates the construct can only be accessed from any code in the given type constructor, module or assembly. [] indicates global scope.

Readable rendering of Accessibility

Represents the constraint on access for a construct

Represents a type or exception definition in the typed AST

Represents a module or namespace definition in the typed AST

Get a table of types defined within this module, namespace or type. The table is indexed by both name type generic arity. This means that for generic types "List`1", the entry (List, 1) will be present.

Get a table of types defined within this module, namespace or type. The table is indexed by both name and, for generic types, also by mangled name.

Get a list of types defined within this module, namespace or type.

Get a list of type type exception definitions defined within this module, namespace or type.

Get a table of nested module type namespace fragments indexed by demangled name (so 'ListModule' becomes 'List')

Namespace or module-compiled-as-type?

Get a list of module type namespace definitions defined within this module, namespace or type.

Get a table of F# exception definitions indexed by demangled name, so 'FailureException' is indexed by 'Failure'

Get a list of F# exception definitions defined within this module, namespace or type.

Get a table of values indexed by logical name

Get a table of values type members indexed by partial linkage key, which includes name, the mangled name of the parent type (if any), type the method argument count (if any).

Compute a table of values type members indexed by logical name.

Values, including members in F# types in this module-or-namespace-fragment.

Get a table of entities indexed by both logical name

Get a table of entities indexed by both logical type compiled names

Type, mapping mangled name to Tycon, e.g.

Get a table of the active patterns defined in this module.

Try to find the member with the given linkage key in the given module.

Return a new module or namespace type with a value added.

Mutation used in hosting scenarios to hold the hosted types in this module or namespace

Mutation used during compilation of FSharp.Core.dll

Return a new module or namespace type with an entity added.

Represents the contents of of a module of namespace

Indicates that an exception is abstract, i.e. is in a signature file, type we do not know the representation

Indicates that an exception carries the given record of values

Indicates that an exception is shorthand for the given .NET exception type

Indicates that an exception is an abbreviation for the given exception

Represents the implementation of an F# exception definition.

If this field is populated, this is the implementation range for an item in a signature, otherwise it is the signature range for an item in an implementation

Name/declaration-location of the field

Attributes attached to generated field

Attributes attached to generated property

Indicates the declared visibility of the field, not taking signatures into account

The default initialization info, for static literals

Indicates a compiler generated field, not visible to Intellisense or name resolution

Indicates a volatile field

Indicates a static field

The type of the field, w.r.t. the generic parameters of the enclosing type constructor

XML Documentation signature for the field

Documentation for the field from signature file

Documentation for the field

Is the field declared mutable in F#?

Get or set the XML documentation signature for the field

Get or set the XML documentation signature for the field

XML Documentation signature for the field

Get the signature location of the field

Get the declaration location of the field

Attributes attached to generated property

Name of the field

The default initialization info, for static literals

Indicates if the field is zero-initialized

Indicates a volatile field

Indicates a static field

Is the field declared mutable in F#?

Indicates a compiler generated field, not visible to Intellisense or name resolution

Name/declaration-location of the field

The type of the field, w.r.t. the generic parameters of the enclosing type constructor

Attributes attached to generated field

Name of the field. For fields this is the same as the logical name.

Name of the field

Get the definition location of the field

Indicates the declared visibility of the field, not taking signatures into account

Represents a class, struct, record or exception field in an F# type, exception or union-case definition. This may represent a "field" in either a struct, class, record or union.

Attributes, attached to the generated static method to make instances of the case

Indicates the declared visibility of the union constructor, not taking signatures into account

If this field is populated, this is the implementation range for an item in a signature, otherwise it is the signature range for an item in an implementation

Name/range of the case

XML documentation signature for the case

Documentation for the case from signature file

Documentation for the case

Return type constructed by the case. Normally exactly the type of the enclosing type, sometimes an abbreviation of it

Data carried by the case.

Get the signature location of the union case

Get the full array of fields of the union case

Get the full list of fields of the union case

Get the declaration location of the union case

Get the logical name of the union case

Indicates if the union case has no fields

Get the core of the display name of the union case Backticks and parens are not added for non-identifiers. Note logical names op_Nil type op_ColonColon become [] and :: respectively.

Get the display name of the union case Backticks are added for non-identifiers. Note logical names op_Nil and op_ColonColon become ([]) and (::) respectively.

Get the definition location of the union case

Get the name of the case in generated IL code. Note logical names `op_Nil` type `op_ColonColon` become `Empty` type `Cons` respectively. This is because this is how ILX union code gen expects to see them.

Get a field of the union case by name

Get a field of the union case by position

Represents a union case in an F# type definition

The ILX data structure representing the discriminated union.

The cases contained in the discriminated union.

Get the union cases as a list

Represents the union cases type related information in an F# type definition

The cases of the discriminated union, indexed by name.

The cases of the discriminated union, in declaration order.

Get the union cases as a list

Get a union case by index

Represents union cases in an F# type definition

The fields of the record, indexed by name.

The fields of the record, in declaration order.

Get all non-compiler-generated instance fields as a list

Get all non-compiler-generated fields as a list

Get all the fields as a list

Get a field by name

Get a field by index

Represents record fields in an F# type definition

The fields of the class, struct or enum

The declared abstract slots of the class, interface or struct

Indicates whether the type declaration is an F# class, interface, enum, delegate or struct

Indicates the cases of a union type

Represents member values type class fields relating to the F# object model

Indicates the type is an F#-declared enumeration

Indicates the type is an F#-declared delegate with the given Invoke signature

Indicates the type is an F#-declared struct

Indicates the type is an F#-declared interface

Indicates the type is an F#-declared class (also used for units-of-measure)

Indicates the type is an F#-declared union

Indicates the type is an F#-declared record

Indicates the type is generated, but type-relocation is suppressed

Indicates the type is erased

A flag read from the provided type type used to compute basic properties of the type definition. Reading is delayed, since it looks at the .BaseType

A type read from the provided type type used to compute basic properties of the type definition. Reading is delayed, since it does an import on the underlying type

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

A flag read eagerly from the provided type type used to compute basic properties of the type definition.

The base type of the type. We use it to compute the compiled representation of the type for erased types. Reading is delayed, since it does an import on the underlying type

The underlying System.Type (wrapped as a ProvidedType to make sure we don't call random things on System.Type, type wrapped as Tainted to make sure we track which provider this came from, for reporting error messages)

The parameters given to the provider that provided to this type.

Indicates if the provided type is generated, i.e. not erased

Gets the base type of an erased provided type

The information kept about a provided type

The 'NoRepr' value here has four meanings: (1) it indicates 'not yet known' during the first 2 phases of establishing type definitions (2) it indicates 'no representation', i.e. 'type X' in signatures (3) it is the setting used for exception definitions (!) (4) it is the setting used for modules type namespaces. It would be better to separate the "not yet known" type other cases out. The information for exception definitions should be folded into here.

Indicates the representation information for a provided namespace.

TProvidedTypeRepr Indicates the representation information for a provided type.

Indicates the type is parameterized on a measure (e.g. float<_>) but erases to some other type (e.g. float)

Indicates the type is implemented as IL assembly code using the given closed Abstract IL type

Indicates the type is a type from a .NET assembly without F# metadata.

Indicates the type is a class, struct, enum, delegate or interface

The information for the contents of a type. Also used for a provided namespace.

Set to true if the type is determined to be abstract

Set to true at the end of the scope where proper augmentations are allowed

Super type, if any

Interface implementations - boolean indicates compiler-generated

Properties, methods etc. as lookup table

Properties, methods etc. in declaration order. The boolean flag for each indicates if the member is known to be an explicit interface implementation. This must be computed and saved prior to remapping assembly information.

True if the type defined an Object.GetHashCode method. In this case we give a warning if we auto-generate a hash method since the semantics may not match up

This is the value implementing the auto-generated equality semantics if any. It is not present if the type defines its own implementation of IStructuralEquatable or if the type doesn't override Object.Equals implicitly.

This is the value implementing the auto-generated equality semantics if any. It is not present if the type defines its own implementation of Object.Equals or if the type doesn't override Object.Equals implicitly.

This is the value implementing the auto-generated comparison semantics if any. It is not present if the type defines its own implementation of IStructuralComparable or if the type doesn't implement IComparable implicitly.

This is the value implementing the auto-generated comparison semantics if any. It is not present if the type defines its own implementation of IComparable or if the type doesn't implement IComparable implicitly.

An AbstractIL type representation that may include type variables

An AbstractIL type representation that is just the name of a type. CompiledTypeRepr.ILAsmNamed (ilTypeRef, ilBoxity, ilTypeOpt) The ilTypeOpt is present for non-generic types. It is an ILType corresponding to the first two elements of the case. This prevents reallocation of the ILType each time we need to generate it. For generic types, it is None.

Specifies the compiled representations of type type exception definitions. Basically just an ILTypeRef. Computed type cached by later phases. Stored in type type exception definitions. Not pickled. Store an optional ILType object for non-generic types.

Represents the declaring entity of a type definition, if any

Used during codegen to hold the ILX representation indicating how to access the type

The stable path to the type, e.g. Microsoft.FSharp.Core.FSharpFunc`2

The stable path to the type, e.g. Microsoft.FSharp.Core.FSharpFunc`2

This field is used when the 'tycon' is really a module definition. It holds statically nested type definitions type nested modules

The methods type properties of the type

The declared representation of the type, i.e. record, union, class etc.

The declared attributes for the type

The declaration location for the type constructor

The name of the type, possibly with `n mangling

The unique stamp of the "tycon blob". Note the same tycon in signature type implementation get different stamps

The declared type parameters of the type

The XML documentation sig-string of the entity, if any, to use to lookup an .xml doc file. This also acts as a cache for this sig-string computation.

The XML documentation sig-string of the entity, if any, to use to lookup an .xml doc file. This also acts as a cache for this sig-string computation.

The XML documentation of the entity, if any. If the entity is backed by provided metadata then this _does_ include this documentation. If the entity is backed by Abstract IL metadata or comes from another F# assembly then it does not (because the documentation will get read from an XML file).

Get the union cases type other union-type information for a type, if any

Get the union cases for a type, if any, as a list

Get the union cases for a type, if any

The information about the r.h.s. of a type definition, if any. For example, the r.h.s. of a union or record type.

Get the value representing the accessibility of the r.h.s. of an F# type definition.

The kind of the type definition - is it a measure definition or a type definition?

The logical contents of the entity when it is a type definition.

Get the type abbreviated by this type definition, if it is an F# type abbreviation definition

Get the type parameters for an entity that is a type declaration, otherwise return the empty list.

These two bits represents the on-demand analysis about whether the entity has the IsReadOnly attribute

The on-demand analysis about whether the entity has the IsByRefLike attribute

These two bits represents the on-demand analysis about whether the entity is assumed to be a readonly struct

Get a list of all instance fields for F#-defined record, struct type class fields in this type definition, excluding compiler-generate fields.

Get a list of all fields for F#-defined record, struct type class fields in this type definition, including static fields, but excluding compiler-generate fields.

A unique stamp for this module, namespace or type definition within the context of this compilation. Note that because of signatures, there are situations where in a single compilation the "same" module, namespace or type may have two distinct Entity objects that have distinct stamps.

The code location where the module, namespace or type is defined.

Get a blob of data indicating how this type is nested in other namespaces, modules or types.

Indicates if we have pre-determined that a type definition has a default constructor.

The logical contents of the entity when it is a module or namespace fragment.

Gets the immediate members of an F# type definition, excluding compiler-generated ones. Note: result is alphabetically sorted, then for each name the results are in declaration order

Gets all immediate members of an F# type definition keyed by name, including compiler-generated ones. Note: result is a indexed table, type for each name the results are in reverse declaration order

The name of the namespace, module or type, possibly with mangling, e.g. List`1, List or FailureException

Indicate if this is a type whose r.h.s. is known to be a union type definition.

Indicates if this entity is an F# type abbreviation definition

Indicates if this is an F# type definition whose r.h.s. is known to be a record type definition that is a value type.

Indicates if this is a struct or enum type definition, i.e. a value type definition, including struct records and unions

Indicates if this is an F# type definition whose r.h.s. is known to be a record type definition.

Indicates if the entity is a provided namespace fragment

Indicates if the entity is a generated provided type definition, i.e. not erased.

Indicates if the entity is an erased provided type definition

Indicates if the entity is a provided type or namespace definition

Indicates the type prefers the "tycon<a, b>" syntax for display etc.

Indicates if the entity is a namespace

Indicates the Entity is actually a module or namespace, not a type definition

Indicates if the entity is an F# module definition

Indicates if this is an F# type definition which is one of the special types in FSharp.Core.dll like 'float<_>' which defines a measure type with a relation to an existing non-measure type as a representation.

Indicates if the entity is linked to backing data. Only used during unpickling of F# metadata.

Indicates if the entity has an implicit namespace

Indicate if this is a type definition backed by Abstract IL metadata.

Indicates if this is a .NET-defined struct or enum type definition

Indicates if this is a .NET-defined enum type definition

Indicates if this is an F# type definition whose r.h.s. definition is unknown (i.e. a traditional ML 'abstract' type in a signature, which in F# is called a 'unknown representation' type).

Indicates if this is an F#-defined value type definition, including struct records and unions

Indicates if this is an F# type definition known to be an F# class, interface, struct, delegate or enum. This isn't generally a particularly useful thing to know, it is better to use more specific predicates.

Indicates if this is an F#-defined interface type definition

Indicates if the entity represents an F# exception declaration.

Indicates if this is an F#-defined enum type definition

Indicates if this is an F#-defined delegate type definition

Indicates if this is an F#-defined class type definition

Indicates if the entity is erased, either a measure definition, or an erased provided type definition

Indicates if this is an enum type definition

Indicates if this is an F# type definition which is one of the special types in FSharp.Core.dll which uses an assembly-code representation for the type, e.g. the primitive array type constructor.

Gets the immediate interface definitions of an F# type definition. Further interfaces may be supported through class type interface inheritance.

Gets the immediate interface types of an F# type definition. Further interfaces may be supported through class type interface inheritance.

The identifier at the point of declaration of the type definition.

Get the Abstract IL metadata for this type definition, assuming it is backed by Abstract IL metadata.

Get the Abstract IL scope, nesting type metadata for this type definition, assuming it is backed by Abstract IL metadata.

Indicates if the value has a signature file counterpart

Indicates if we have pre-determined that a type definition has a self-referential constructor using 'as x'

Gets any implicit hash/equals (with comparer argument) methods added to an F# record, union or struct type definition.

Gets any implicit hash/equals methods added to an F# record, union or struct type definition.

Gets any implicit CompareTo (with comparer argument) methods added to an F# record, union or struct type definition.

Gets any implicit CompareTo methods added to an F# record, union or struct type definition.

Get the blob of information associated with an F# object-model type definition, i.e. class, interface, struct etc.

The information about the r.h.s. of an F# exception definition, if any.

The display name of the namespace, module or type with <_, _, _> added for generic types, plus static parameters if any For modules the Module suffix is removed if FSharpModuleWithSuffix is used. Backticks are added implicitly for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, including static parameters if any For modules the Module suffix is removed if FSharpModuleWithSuffix is used. Backticks are added implicitly for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, type no static parameters. For modules the Module suffix is removed if FSharpModuleWithSuffix is used. No backticks are added for entities with non-identifier names

The display name of the namespace, module or type, e.g. List instead of List`1, type no static parameters For modules the Module suffix is removed if FSharpModuleWithSuffix is used. Backticks are added implicitly for entities with non-identifier names

Demangle the module name, if FSharpModuleWithSuffix is used

The range in the implementation, adjusted for an item in a signature

Gets the data indicating the compiled representation of a named type or module in terms of Abstract IL data structures.

Gets the data indicating the compiled representation of a type or module in terms of Abstract IL data structures.

Get the cache of the compiled ILTypeRef representation of this module or type.

The compiled name of the namespace, module or type, e.g. FSharpList`1, ListModule or FailureException

Get a blob of data indicating how this type is nested inside other namespaces, modules type types.

Get a blob of data indicating how this type is nested inside other namespaces, modules type types.

The F#-defined custom attributes of the entity, if any. If the entity is backed by Abstract IL or provided metadata then this does not include any attributes from those sources.

Get a list of all instance fields for F#-defined record, struct type class fields in this type definition. including hidden fields from the compilation of implicit class constructions.

Gets all implicit hash/equals/compare methods added to an F# record, union or struct type definition.

Get a list of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get an array of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get a table of fields for all the F#-defined record, struct type class fields in this type definition, including static fields, 'val' declarations type hidden fields from the compilation of implicit class constructions.

Get the value representing the accessibility of an F# type definition or module.

Get the type parameters for an entity that is a type declaration, otherwise return the empty list. Lazy because it may read metadata, must provide a context "range" in case error occurs reading metadata.

Sets the structness of a record or union type definition

Set the on-demand analysis about whether the entity has the IsReadOnly attribute

Set the on-demand analysis about whether the entity has the IsByRefLike attribute

Set the on-demand analysis about whether the entity is assumed to be a readonly struct

Set the custom attributes on an F# type definition.

Create a new entity with empty, unlinked data. Only used during unpickling of F# metadata.

Create a new entity with the given backing data. Only used during unpickling of F# metadata.

Link an entity based on empty, unlinked data to the given data. Only used during unpickling of F# metadata.

Get a union case of a type by name

Get a field by name.

Get a field by index in definition order

Represents a type definition, exception definition, module definition or namespace definition.

Field used when the 'tycon' is really an exception definition

Indicates how visible is the entity is.

The declared accessibility of the representation, not taking signatures into account

If non-None, indicates the type is an abbreviation for another type.

The XML document signature for this entity

the signature xml doc for an item in an implementation file.

The declared documentation for the type or module

If this field is populated, this is the implementation range for an item in a signature, otherwise it is the signature range for an item in an implementation

The name of the type, possibly with `n mangling

String 'Module' off an F# module name, if FSharpModuleWithSuffix is used

The information ILXGEN needs about the location of an item

Represents the specified visibility of the accessibility -- used to ensure IL visibility

A public path records where a construct lives within the global namespace of a CCU.

Indicates that the sourcecode had a namespace. If false, this namespace was implicitly constructed during type checking.

Indicates that a 'module' is really a namespace

Indicates that a module is compiled to a class with the same name as the original module

Indicates that a module is compiled to a class with the "Module" suffix added.

These two bits represents the on-demand analysis about whether the entity has the IsReadOnly attribute

These two bits represents the on-demand analysis about whether the entity has the IsByRefLike attribute

These two bits represents the on-demand analysis about whether the entity is assumed to be a readonly struct

This bit is reserved for us in the pickle format, see pickle.fs, it's being listed here to stop it ever being used for anything else

Get the flags as included in the F# binary metadata

This bit represents a F# record that is a value type, or a struct record.

Indicates the type prefers the "tycon<a, b>" syntax for display etc.

Indicates the Entity is actually a module or namespace, not a type definition

Adjust the on-demand analysis about whether the entity has the IsReadOnly attribute

Adjust the on-demand analysis about whether the entity has the IsByRefLike attribute

Adjust the on-demand analysis about whether the entity is assumed to be a readonly struct

Encode entity flags into a bit field. We leave lots of space to allow for future expansion.

Indicates if the type variable has a static "head type" requirement, i.e. ^a variables used in FSharp.Core type member constraints.

Indicates if the type variable can be solved or given new constraints. The status of a type variable generally always evolves towards being either rigid or solved.

Get the flags as included in the F# binary metadata. We pickle this as int64 to allow for future expansion

Indicates whether a type variable can be instantiated by types or units-of-measure.

Indicates whether this type parameter is flexible for 'supports null' constraint, e.g. in the case of assignment to a mutable value

Indicates if the type inference variable was generated after an error when type checking expressions or patterns

Indicates if the type variable is compiler generated, i.e. is an implicit type inference variable

Indicates that whether this type parameter is a compat-flex type parameter (i.e. where "expr :> tp" only emits an optional warning)

Indicates that whether or not a generic type definition satisfies the equality constraint is dependent on whether this type variable satisfies the equality constraint.

Indicates if a type parameter is needed at runtime type may not be eliminated

Indicates that whether or not a generic type definition satisfies the comparison constraint is dependent on whether this type variable satisfies the comparison constraint.

Encode typar flags into a bit field

Indicates the type parameter derives from an '_' anonymous type For units-of-measure, we give a warning if this gets solved to '1'

Indicates the type parameter is an inference variable may be solved

Indicates we give a warning if the type parameter is ever solved

Indicates the type parameter can't be solved, but the variable is not set to "rigid" until after inference is complete

Indicates the type parameter can't be solved

Indicates if the type variable can be solved or given new constraints. The status of a type variable evolves towards being either rigid or solved.

Represents the kind of a type parameter

Get the flags as included in the F# binary metadata

Flags on values

Indicates the 'this' value specified in a memberm e.g. 'x' in 'member x.M() = 1'

Indicates a normal value

Indicates the value called 'base' available for calling base class members

Indicates a ref-cell holding 'this' or the implicit 'this' used throughout an implicit constructor to access type set values

Indicates the type parameter is needed at runtime type may not be eliminated

Indicates the type parameter is not needed at runtime type may be eliminated

Indicates if a type parameter is needed at runtime type may not be eliminated

The normal value for this flag when the value is not within its recursive scope

Set while the value is within its recursive scope. The flag indicates if the value has been eagerly generalized type accepts generic-recursive calls

A flag associated with values that indicates whether the recursive scope of the value is currently being processed, type if the value has been generalized or not as yet.

Indicates the value must never be inlined by the optimizer

Indicates the value may optionally be inlined by the optimizer

Indicates the value is inlined but the .NET IL code for the function still exists, e.g. to satisfy interfaces on objects, but that it is also always inlined

Returns true if the implementation of a value must always be inlined

Special name for the defensive copy of a struct, we use it in situations like when we get an address of a field in ax-assembly scenario.

Defines the typed abstract syntax intermediate representation used throughout the F# compiler.

Given (newPath, oldPath) replace oldPath by newPath in the TAccess.

Primitive routine to compare two ValRef's for equality. On the whole value identity is not particularly significant in F#. However it is significant for (a) Active Patterns (b) detecting uses of "special known values" from FSharp.Core.dll, such as 'seq' and quotation splicing Note this routine doesn't take type forwarding into account

Primitive routine to compare two UnionCaseRef's for equality

Primitive routine to compare two EntityRef's for equality This takes into account the possibility that they may have type forwarders

Compare two EntityRef's for equality when compiling fslib (FSharp.Core.dll)

This predicate tests if non-local resolution paths are definitely known to resolve to different entities. All references with different named paths always resolve to different entities. Two references with the same named paths may resolve to the same entities even if they reference through different CCUs, because one reference may be forwarded to another via a .NET TypeForwarder.

From Ref_private to Ref_nonlocal when exporting data.

From Ref_private to Ref_nonlocal when exporting data.

Detect a use of a nominal type, including type abbreviations.

Make a reference to a union case for type in a module or namespace

For dereferencing in the middle of a pattern

Equality on CCU references, implemented as reference equality except when unresolved

Equality on value specs, implemented as reference equality

Equality on type variables, implemented as reference equality. This should be equivalent to using typarEq.

Metadata on values (names of arguments etc.

Memoization table to help minimize the number of ILSourceDocument objects we create

Are we assuming all code gen is for F# interactive, with no static linking

Indicates if we can use System.Array.Empty when emitting IL for empty array literals

Indicates if we are generating witness arguments for SRTP constraints. Only done if the FSharp.Core supports witness arguments.

Find an FSharp.Core operator that corresponds to a trait witness

Find an FSharp.Core LanguagePrimitives dynamic function that corresponds to a trait witness, e.g. AdditionDynamic for op_Addition. Also work out the type instantiation of the dynamic function.

For debugging

For debugging

For debugging

For debugging

Represents an intrinsic value from FSharp.Core known to the compiler

Signals how checker/compiler was invoked - from FSC task/process (a one-off compilation), from tooling or from interactive session. This is used to determine if we want to use certain features in the pipeline, for example, type subsumption cache is only used in one-off compilation now.

An immutable mapping from witnesses to some data. Note: this uses an immutable HashMap/Dictionary with an IEqualityComparer that captures TcGlobals, see EmptyTraitWitnessInfoHashMap

An expression representing the overall loop.

An expression representing the loop body.

An expression representing the current loop element.

An expression representing the loop's current iteration index.

An expression holding the loop's iteration count.

Represents metadata extracted from a nominal type

A set of function parameters (visitor) for folding over expressions

The empty table representing no hiding

A set of tables summarizing the items hidden by a signature

The list of corresponding modules, namespaces and type definitions

The list of corresponding values

The empty table

The remapping that corresponds to a module meeting its signature and also report the set of tycons, tycon representations and values hidden in the process.

OnlyCloneExprVals is a nasty setting to reuse the cloning logic in a mode where all Tycon and "module/member" Val objects keep their identity, but the Val objects for all Expr bindings are cloned. This is used to 'fixup' the TAST created by tlr.fs This is a fragile mode of use. It's not really clear why TLR needs to create a "bad" expression tree that reuses Val objects as multiple value bindings, and its been the cause of several subtle bugs.

Indicate what should happen to value definitions when copying expressions

A flag to govern whether ValReprInfo inference should be type-directed or syntax-directed when inferring from a lambda expression.

If set, signatures will be rendered with XML documentation comments for members if they exist Defaults to false, expected use cases include things like signature file generation.

Force the prefix style for a top-level type, for example, `seq<int list>` instead of `int list seq`

Force the suffix style: int List

Force the prefix style: List<int>

Use the IsPrefixDisplay member of the TyCon to determine the style

Describes how generic type parameters in a type will be formatted during printing

During backend code generation of state machines, register a template replacement for struct types. This may introduce new free variables related to the instantiation of the struct type.

Represents the options to activate when collecting free variables

Represents a combination of substitutions/instantiations where things replace other things during remapping

Represents an instantiation where value references replace other value references

Represents an instantiation where type definition references replace other type definition references

Represents an instantiation where types replace type parameters

The empty map

Make a new map, containing a entries for the given type definitions

Fetch the entries for the given type definition

Make a new map, containing a new entry for the given type definition

Maps TyconRef to list of T based on stamp keys

Get the entry for the given type definition

Determine if the map is empty

The empty map

Try to find the entry for the given type definition

Remove the entry for the given type definition, if any

Make a new map, containing entries for the given type definitions

Determine is the map contains an entry for the given type definition

Make a new map, containing a new entry for the given type definition

Maps TyconRef to T based on stamp keys

Get the entry for the given type parameter

The empty map

Try to find the entry for the given type parameter

Determine is the map contains an entry for the given type parameter

Make a new map, containing a new entry for the given type parameter

Maps type parameters to entries based on stamp keys

Maps Val's to list of T based on stamp keys

Mutable data structure mapping Val's to T based on stamp keys

Maps Val to T, based on stamps

GeneralizedType (generalizedTypars, tauTy) generalizedTypars -- the truly generalized type parameters tauTy -- the body of the generalized type. A 'tau' type is one with its type parameters stripped off.

Finish the targets

Build the overall expression

Add a new destination target

Add a new destination target that is an expression result

Create a new builder

Build decision trees imperatively

Check if the order of defined typars is different from the order of used typars in the curried arguments. If this is the case, a generated signature would require explicit typars. See https://github.com/dotnet/fsharp/issues/15175

Updates the IsPrefixDisplay to false for the Microsoft.FSharp.Collections.seq`1 entity Meant to be called with the FSharp.Core module spec right after it was unpickled.

Serialize an entity to a very basic json structure.

Add an System.Runtime.CompilerServices.ExtensionAttribute to the type Entity if found via predicate and not already present.

Add an System.Runtime.CompilerServices.ExtensionAttribute to the module Entity if found via predicate and not already present.

Matches a ModuleOrNamespaceContents that is empty from a signature printing point of view. Signatures printed via the typed tree in NicePrint don't print TMDefOpens or TMDefDo. This will match anything that does not have any types or bindings.

Get the key associated with the member constraint.

Get the name of the trait for textual call.

Get the argument types when the trait is used as a first-class value "^T.TraitName" which can then be applied

Get the argument types recorded in the member constraint suitable for building a TypedTree call.

Indicates if an F# type is the type associated with an F# exception declaration

Detect a 'seq { ... }' expression

Detect a 'Seq.empty' implicit in the implied 'else' branch of an 'if .. then' in a seq { ... }

Detect the outer 'Seq.delay' added for a construct 'seq { ... }'

Detect the de-sugared form of a 'for x in collection do ..' within a 'seq { ... }'

Detect the de-sugared form of a 'use x = ..' within a 'seq { ... }'

Detect the de-sugared form of a 'try .. finally .. ' within a 'seq { ... }'

Detect the de-sugared form of a 'while gd do expr' within a 'seq { ... }'

Detect the de-sugared form of a 'expr; expr' within a 'seq { ... }'

Detect the de-sugared form of a 'yield x' within a 'seq { ... }'

Determine if a value is a method implementing an interface dispatch slot using a private method impl

Match an if...then...else expression or the result of "a && b" or "a || b"

Shared helper for binding attributes

The delegate type ResumableCode, or any function returning this a delegate type

Any delegate type with ResumableCode attribute, or any function returning such a delegate type

Add a label to use as the target for a goto

Recognise a try-finally expression

Recognise a try-with expression

Recognise an integer for-loop expression

Recognise a while expression

Recognise a '__resumeAt' expression

Recognise a '__debugPoint' expression

Recognise a sequential or binding construct in a resumable code

Recognise a '__stateMachine' expression

Recognise a 'match __resumableEntry() with ...' expression

Match 'if __useResumableCode then ... else ...' expressions

Match a .Invoke on a delegate

Match expressions that represent the creation of an instance of an F# delegate value

Match expressions that are an application of a particular F# function value

Create an empty immutable mapping from witnesses to some data

Makes an optimized while-loop for a range expression with the given integral start, step, and finish: start..step..finish The buildLoop function enables using the precomputed iteration count in an optional initialization step before the loop is executed.

Matches if the given expression is an application of the range or range-step operator on an integral type and returns the type, start, step, and finish if so. start..finish start..step..finish

Determines types that are potentially known to satisfy the 'comparable' constraint and returns a set of residual types that must also satisfy the constraint

Get the overall type for a function that implements the active pattern

Get the result type for the active pattern

Get the display name for one of the cases of the active pattern, by index

Get the core of the display name for one of the cases of the active pattern, by index

Build for loops

Check if the type is a byref-like but not a byref.

returns Some(assemblyName) for success

Try to find the AttributeUsage attribute, looking for the value of the AllowMultiple named parameter

Try to find an attribute with a specific full name on a type definition

Try to find a specific attribute on a type definition

Try to find a specific attribute on a type definition, where the attribute accepts a bool argument.

Try to find a specific attribute on a type definition, where the attribute accepts a string argument. This is used to detect the 'DefaultMemberAttribute' and 'ConditionalAttribute' attributes (on type definitions)

Use an operator as a witness

Use a witness in BuiltInWitnesses

Make a call to the 'isprintf' function for string interpolation

Makes an expression holding a constant 1 value of the given numeric type.

Makes an expression holding a constant 0 value of the given numeric type.

This is used for tacking on code _after_ the expression. The SuppressStmt setting is used for debug points, suppressing the debug points for the statement if possible.

This is used for tacking on code _before_ the expression. The SuppressStmt setting is used for debug points, suppressing the debug points for the statement if possible.

Create the expression 'None' for an option-type

Create the expression 'Some(expr)'

Create the expression 'headExpr:: tailExpr'

Create the expression '[]' for a list type

Create the struct expression 'ValueNone' for an voption type

Create the expression 'ValueSome(expr)'

Create the struct union case 'Some' or 'ValueSome(expr)' for a voption type

Create the struct union case 'ValueSome(expr)' for a voption type

Create the struct union case 'ValueNone' for a voption type

Create the union case 'Some(expr)' for an option type

Create the union case 'None' for an option type

Create the Nullable type for a given element type

Create the voption type for a given element type

Create the option type for a given element type

Create the list type for a given element type

Create the IEnumerator type for a given element type

Create the IEnumerable (seq) type for a given element type

Create the FSharpRef type for a given element type

Get the element type of an FSharpRef type

Check if a type is an FSharpRef type

A type coming via interop from C# can be holding a nullness combination not supported in F#. Prime example are APIs marked as T|null applied to structs, tuples and anons. Unsupported values can also be nested within generic type arguments, e.g. a List<Tuple<string,T|null>> applied to an anon.

Matches any byref type, yielding the target type

An active pattern to transform System.Nullable types to their input, otherwise leave the input unchanged

An active pattern to match System.Nullable types

An active pattern to determine if a type is a nominal type, possibly instantiated

For "type Class as self", 'self' is fixed up after initialization. To support this, it is converted behind the scenes to a ref. This function strips off the ref and returns the underlying type.

Determine if a type is a struct, record or union type

Determine if a type is a numeric type type

Determine if a type is a non-decimal numeric type type

Determine if a type is a decimal type

Determine if a type is a floating point type

Determine if a type is an integer type

Determine if a type is an unsigned integer type

Determine if a type is a signed integer type

Determine if a type is an enum type

Determine if a type is a class type

Determine if a type is an unmanaged type

Determine if a type is a variable type with the ': not struct' constraint. Note, isRefTy does not include type parameters with the ': not struct' constraint This predicate is used to detect those type parameters.

Determine if a type is a variable type with the ': struct' constraint. Note, isStructTy does not include type parameters with the ': struct' constraint This predicate is used to detect those type parameters.

Determine if a type is a struct type

Determine if TyconRef is to a struct type

If the input type is an enum type, then convert to its underlying type, otherwise return the input type

Determine the underlying type of an enum type (normally int32)

Determine if a type is a ComInterop type

Determine if a type is a sealed type

Determine if a type is a function (including generic). Not the same as isFunTy.

Determine if a type is a reference type

Determine if a type is an interface type

Determine if a type is a delegate type defined in F#

Determine if a type is a delegate type

Determine if a reference to a type definition is an interface type

Get the rank of an array type

Get the element type of an array type

Determine if a type is the System.Void type

Determine if a type is the System.ValueType type

Determine if a type is a strictly non-nullable System.Object type. If nullness checking is disabled, this returns false.

Determine if a type is the (System.Object | null) type. Allows either nullness if null checking is disabled.

Determine if a type is the System.Object type with any nullness qualifier

Determine if a type is the F# unit type

Determine the rank of one of the artificial type definitions used for array types

Check if a type definition is one of the artificial type definitions used for array types of different ranks

Build an array type of the given rank

Get the element type of an F# list type

Get the element type of an array type

Determine if a type is a single-dimensional array type

Determine if a type is any kind of array type

Determine if a type is a nominal .NET type

Determine if a type is an F# list type

Determine if a type is the System.String type

Extract metadata from a type

Extract metadata from a type definition

Build an PrintFormat type

Build an Lazy type

Build an IObserver type

Build an IObservable type

Build an IEvent type

Take apart an IDelegateEvent type

Determine if a type is an IDelegateEvent type

Try to take apart a System.Linq.Expression type

Take apart a System.Linq.Expression type

Determine if a type is a System.Linq.Expression type

Take apart a System.Nullable type

Try to take apart a System.Nullable type

Determine is a type is a System.Nullable type

Try to take apart an Choice type

Take apart an Choice type

Try to take apart an option type

Try to take apart an option type

Take apart an option type

Determine if a type is an Choice type

Determine if a type is an option type

Determine if a type is a value option type

Determine if a type is a bool type

Build a single-dimensional array type

Build a 'voidptr' type

Build a nativeptr type

Fold over all the expressions in an expression

Fold over all the expressions in an implementation file

The empty set of actions for folding over expressions

Combine two static-resolution requirements on a type parameter

Make a delegate invoke expression for an F# delegate type, doing beta reduction by introducing let-bindings if the delegate expression is a construction of a delegate.

Make an application expression, doing beta reduction by introducing let-bindings if the function expression is a construction of a lambda

Given a lambda expression, adjust it to have be one or two lambda expressions (fun a -> (fun b -> ...)) where the first has the given arguments.

Given a lambda expression taking multiple variables, build a corresponding lambda taking a tuple

Work out what things on the right-han-side of a 'let rec' recursive binding need to be fixed up

Make a 'match' expression without applying any peep-hole optimizations.

Make a 'match' expression applying some peep-hole optimizations along the way, e.g to pre-decide the branch taken at compile-time.

Accumulate the targets actually used in a decision graph (for reporting warnings)

Build an expression representing the read of an instance class or record field. First take the address of the record expression if it is a struct.

Build an expression to take the address of a local &localv

Build an expression to dereference a local pointer *localv_ptr

Build an expression to mutate the contents of a local pointer *localv_ptr = e

Build an expression to mutate a local localv <- e

Build the application of a generic construct to a set of type arguments. Reduce the application via substitution if the function value is a typed lambda expression.

Build the application of a (possibly generic, possibly curried) function value to a set of type and expression arguments. Reduce the application via let-bindings if the function value is a lambda expression.

Build the application of a (possibly generic, possibly curried) function value to a set of type and expression arguments

Adjust marks in expressions, replacing all marks by the given mark. Used when inlining.

Determine if a record field is hidden by a signature

Determine if a member, function or value is hidden by a signature

Determine if the representation of a type definition is hidden by a signature

Determine if a type definition is hidden by a signature

Get the value including fsi remapping

Get the value including fsi remapping

Make a remapping table for viewing a module or namespace 'from the outside'

Make the substitution (remapping) table for viewing a module or namespace 'from the outside' Given the top-most signatures constrains the public compilation units of an assembly, compute a remapping that converts local references to non-local references. This remapping must be applied to all pickled expressions and types exported from the assembly.

Given a value definition, try to produce a reference to that value. Fails for local values.

Given a namespace, module or type definition, try to produce a reference to that entity.

Wrap one module or namespace definition in a 'module M = ..' outer wrapper

Wrap one module or namespace definition in a 'namespace N' outer wrapper

Wrap one module or namespace implementation in a 'namespace N' outer wrapper

Compute the hiding information that corresponds to the hiding applied at an assembly boundary

Compute the hiding information that corresponds to the hiding applied at an assembly boundary

Compute the remapping information implied by an explicit signature being given for an inferred signature

Compute the remapping information implied by a signature being inferred for a particular implementation

Instantiate the generic type parameters in an expression, building a new one

Instantiate the generic type parameters in a method slot signature, building a new one

Copy a method slot signature, including new generic type parameters if the slot signature represents a generic method

Copy an entire implementation file using the given copying flags

Copy an entire expression using the given copying flags

Copy an entire module or namespace type using the given copying flags

Remap a (possible generic) type using the given remapping substitution

Remap an attribute using the given remapping substitution

Remap an expression using the given remapping substitution

Remap a reference to a value using the given remapping substitution

Remap a reference to a record field using the given remapping substitution

Remap a reference to a union case using the given remapping substitution

Remap a reference to a type definition using the given remapping substitution

Mutate a value to indicate it should be considered a local rather than a module-bound definition

Given a lambda binding, extract the ValReprInfo for its arguments and other details

Given a lambda expression, extract the ValReprInfo for its arguments and other details

Given a (curried) lambda expression, pull off its arguments

Compute the type of an expression from the expression itself

Check if a set of free variables are all public

Check if a set of free type variables are all public

Get the free variables in the right hand side of a binding.

Get the free variables in an expression.

Get the free variables in an expression with accumulator

Get the free variables in a module definition.

A unique qualified name for each type definition, used to qualify the names of interface implementation methods

Return the full text for an item as we want it displayed to the user as a fully qualified entity

Count the number of type parameters on the enclosing type

Returns (parentTypars,memberParentTypars,memberMethodTypars,memberToParentInst,tinst)

Returns (parentTypars,memberParentTypars,memberMethodTypars,memberToParentInst,tinst)

Returns (parentTypars,memberParentTypars,memberMethodTypars,memberToParentInst,tinst)

Try to get a TyconRef for a type without erasing type abbreviations

See through F# exception abbreviations

set bool to 'true' to allow shortcutting of type parameter equation chains during stripping

From typars to types

Equality for value references

Equality for type definition references

An ordering for type parameters, based on stamp

An ordering for record fields, based on stamp

An ordering for type definitions, based on stamp

An ordering for value definitions, based on stamp

Take the address of an expression, or force it into a mutable local. Any allocated mutable local may need to be kept alive over a larger expression, hence we return a wrapping function that wraps "let mutable loc = Expr in ..." around a larger expression.

Helper to take the address of an expression

Helper to create an expression that dereferences an address.

If it is a tuple type, ensure it's outermost type is a .NET tuple type, otherwise leave unchanged

Evaluate the AnonRecdTypeInfo to work out if it is a struct or a ref.

Evaluate the TupInfo to work out if it is a struct or a ref. Currently this is very simple but TupInfo may later be used carry variables that infer structness.

Make a TAST expression representing getting an item from a tuple

Convert from F# tuple creation expression to .NET tuple creation expressions

Convert from F# tuple types to .NET tuple types.

Get a TyconRef for a .NET tuple type

Check if a TyconRef is for a .NET tuple type. Currently this includes Tuple`1 even though that' not really part of the target set of TyconRef used to represent F# tuples.

The number of fields in the largest tuple before we start encoding, i.e. 7

The largest tuple before we start encoding, i.e. 7

Make an expression that gets the address of an element in an array

Make an expression that sets an instance field in an F# exception value

Make an expression that gets an instance field from an F# exception value

Like mkUnionCaseFieldGetUnprovenViaExprAddr, but for struct-unions, the input should be a copy of the expression.

Build a 'TOp.UnionCaseFieldSet' expression. For ref-unions, the input expression has 'TType_ucase', which is an F# compiler internal "type" corresponding to the union case. For struct-unions, the input should be the address of the expression.

Build a 'TOp.UnionCaseFieldGetAddr' expression for a field of a union when we've already determined the value to be a particular union case. For ref-unions, the input expression has 'TType_ucase', which is an F# compiler internal "type" corresponding to the union case. For struct-unions, the input should be the address of the expression.

Build a 'TOp.UnionCaseFieldGetAddr' expression for a field of a union when we've already determined the value to be a particular union case. For ref-unions, the input expression has 'TType_ucase', which is an F# compiler internal "type" corresponding to the union case. For struct-unions, the input should be the address of the expression.

Build a 'TOp.UnionCaseFieldGet' expression for something we've already determined to be a particular union case. For ref-unions, the input expression has 'TType_ucase', which is an F# compiler internal "type" corresponding to the union case. For struct-unions, the input should be the address of the expression.

Make a 'TOp.UnionCaseProof' expression, which proves a union value is over a particular case (used only for ref-unions, not struct-unions)

Make an expression which tests that a union value is of a particular union case.

Make an expression that gets the tag of a union value (via the address of the value if it is a struct)

Make an expression that sets an instance the field of a record or class (via the address of the value if it is a struct)

Make an expression that gets the address of a static field in a record or class

Make an expression that sets a static field in a record or class

Make an expression that gets a static field from a record or class

Make an expression that gets the address of an instance field from a record or class (via the address of the value if it is a struct)

Make an expression that gets an instance field from a record or class (via the address of the value if it is a struct)

Make an expression that gets an item from an anonymous record (via the address of the value if it is a struct)

Make an expression that gets an item from an anonymous record

Make an expression that gets an item from a tuple

Make an expression that re-raises an exception via a library call

Make an expression that re-raises an exception

Make an expression that coerces one expression to another type

Make an expression that is IL assembly code

Make an expression that constructs an exception value

Make an expression that constructs a union case, e.g. 'Some(expr)'

Make an out-byref type with an out kind parameter

Make a in-byref type with a in kind parameter

Make a byref type with a in/out kind inference parameter

Make a byref type

Make the expression corresponding to 'expr1 || expr2'

Make the expression corresponding to 'expr1 && expr2'

Test if the type parameter is one of those being generalized by a type scheme.

Make the right-hand side of a generalized binding, incorporating the generalized generic parameters from the type scheme into the right-hand side as type generalizations.

Make a let-rec expression that locally binds values to expressions where self-reference back to the values is possible.

Make a set of bindings that bind values to expressions in an "invisible" way. Invisible bindings are not given a sequence point and should not have side effects.

Make a binding that binds a value to an expression in an "invisible" way. Invisible bindings are not given a sequence point and should not have side effects.

Make a let-expression that locally binds a value to an expression in an "invisible" way. Invisible bindings are not given a sequence point and should not have side effects.

Make a mutable let-expression that locally binds a compiler-generated value to an expression, where the expression is returned by the given continuation. Compiler-generated bindings do not give rise to a sequence point in debugging.

Make a let-expression that locally binds a compiler-generated value to an expression, where the expression is returned by the given continuation. Compiler-generated bindings do not give rise to a sequence point in debugging.

Make a let-expression that locally binds a compiler-generated value to an expression. Compiler-generated bindings do not give rise to a sequence point in debugging.

Make a set of bindings that bind compiler generated values to corresponding expressions. Compiler-generated bindings do not give rise to a sequence point in debugging.

Make a binding that binds a function value to a lambda taking multiple arguments

Build a user-level let expression

Build a user-level value sequence of let bindings

Build a user-level value sequence of let bindings

Build a user-level let-binding

Build a user-level value binding

Build a 'try/finally' expression

Build a 'try/with' expression

Build a 'for' loop expression

Build a 'while' loop expression

Build a lambda expression that corresponds to the implementation of a member

Build an iterated generic (type abstraction + tupled+curried) lambda expression

Build an iterated (tupled+curried) lambda expression

Build an iterated (curried) lambda expression

Build an type-chose expression, indicating that a local free choice of a type variable

Build an object expression

Build a generic lambda expression (type abstraction)

Build a lambda expression taking a single value

Rebuild a lambda during an expression tree traversal

Build a lambda expression taking multiple values

Make a new mutable compiler-generated local value, 'let' bind it to an expression 'invisibly' (no sequence point etc.), and build an expression to reference it

Make a new mutable compiler-generated local value and build an expression to reference it

Make a new compiler-generated local value and build an expression to reference it

Make a new local value and build an expression to reference it

Build an expression corresponding to the use of a reference to a value

Build an expression corresponding to the use of a value Note: try to use exprForValRef or the expression returned from mkLocal instead of this.

Build an if-then statement

Build a conditional expression that checks for non-nullness

Build a conditional expression

Build a conditional expression

Add an if-then-else boolean conditional node into a decision tree

Look for a use of an F# value, possibly including application of a generic thing to a set of type arguments

Get the values for a set of bindings

Match any 'Expr.Link' and 'Expr.DebugPoint' in an expression, providing the inner expression and a function to rebuild debug points

Ignore 'Expr.Link' and 'Expr.DebugPoint' in an expression

Ignore 'Expr.Link' in an expression

Module publication, used while compiling fslib.

Get the curried type corresponding to a lambda

Get the type corresponding to a lambda

Get the natural type of a single argument amongst a set of curried arguments

Build a curried function type

Build a type-forall anonymous generic type if necessary

Build a function type

Reduce a type to its more canonical form subject to an erasure flag, inference equations and abbreviations

Get the unit of measure for an annotated type

Check the equivalence of two units-of-measure

Check the equivalence of two types

Check the equivalence of two types up to an erasure flag

An exception representing a warning for a defensive copy of an immutable struct

Constant 0.

Debug layout for class and record fields

Debug layout for a list of implementation files

Debug layout for an implementation file

Debug layout for a decision tree

Debug layout for a type definition

Debug layout for an expression

Debug layout for a binding of an expression to a value

Debug layout for a module or namespace definition

Debug layout for a method slot signature

Debug layout for a type

Debug layout for a set of type parameters

Debug layout for a type parameter

Debug layout for a trait constraint

Debug layout for a type parameter definition

Debug layout for a value definition

Debug layout for an integer

Debug layout for an value definition at its binding site

Debug layout for a reference to a union case

Debug layout for a reference to a value

Convert an expression to a string for debugging purposes

Convert a type to a string for debugging purposes

A global flag indicating whether debug output should include type information

A global flag indicating whether debug output should include ranges

A global flag indicating whether debug output should include stamps of Val and Entity

A global flag indicating whether debug output should include ValReprInfo

Layout for internal compiler debugging purposes

Utilities used in simplifying types for visual presentation

same as PrettifyTypes, but allows passing the types along with a discriminant value useful to prettify many types that need to be sorted out after prettifying operation took place.

Assign previously generated pretty names to typars

Defines derived expression manipulation and construction functions.

A function to read a value from a given state

The type of state unpicklers read from

A function to pickle a value into a given stateful writer

The type of state written to by picklers

The assumptions that need to be fixed up

The data that uses a collection of CcuThunks internally

Like Fixup but loader may return None, in which case there is no fixup.

Represents deserialized data with a dangling set of CCU fixup thunks indexed by name

Deserialize an arbitrary object which may have holes referring to other compilation units

Deserialize a TAST description of a compilation unit

Deserialize a TAST type

Deserialize a TAST expression

Deserialize a TAST union case reference

Deserialize a TAST type reference

Deserialize a TAST value reference

Deserialize a TAST constant

Deserialize a namemap

Deserialize an array of values

Deserialize a tuple

Deserialize a tuple

Deserialize a tuple

Deserialize a lazy value (eagerly)

Deserialize a string

Deserialize an integer

Deserialize a bool

Deserialize a byte

Serialize an arbitrary object using the given pickler

Serialize a TAST description of a compilation unit

Serialize a TAST type

Serialize a TAST expression

Serialize a TAST union case reference

Serialize a TAST type or entity reference

Serialize a TAST value reference

Serialize a TAST constant

Serialize a namemap of data

Serialize an array of data

Serialize a tuple of data

Serialize a tuple of data

Serialize a tuple of data

Serialize a lazy value (eagerly)

Serialize a string

Serialize an integer

Serialize a boolean value

Serialize a byte

Defines the framework for serializing and de-serializing TAST data structures as binary blobs for the F# metadata format.

The Typars of a Val in the signature data should also be pretty named. This will happen for the implementation file contents, but not for the signature data. In this module some helpers will traverse the ModuleOrNamespaceType and update all the typars of each found Val.

The TcGlobals for the import context

The AssemblyLoader for the import context

Represents a context used for converting AbstractIL .NET and provided types to F# internal compiler data structures. Also cache the conversion of AbstractIL ILTypeRef nodes, based on hashes of these. There is normally only one ImportMap for any assembly compilation, though additional instances can be created using tcImports.GetImportMap() if needed, and it is not harmful if multiple instances are used. The object serves as an interface through to the tables stored in the primary TcImports structures defined in CompileOps.fs.

Record a root for a [<Generate>] type to help guide static linking & type relocation

Get a flag indicating if an assembly is a provided assembly, plus the table of information recording remappings from type names in the provided assembly to type names in the statically linked, embedded assembly.

Resolve an Abstract IL assembly reference to a Ccu

Represents an interface to some of the functionality of TcImports, for loading assemblies and accessing information about generated provided assemblies.

Import an IL type as an F# type, first rescoping to view the metadata from the current assembly being compiled. importInst gives the context for interpreting type variables.

Import an IL type as an F# type, first rescoping to view the metadata from the current assembly being compiled. importInst gives the context for interpreting type variables. This function fully skips the 'nullness checking' metadata flags.

Import the type forwarder table for an IL assembly

Import an IL assembly as a new TAST CCU

Import a set of Abstract IL generic parameter specifications as a list of new F# generic parameters.

Import a provided method reference as an Abstract IL method reference

Import a provided type as an AbstractIL type

Import a provided type reference as an F# type TyconRef

Import a provided type as an F# type.

Pre-check for ability to import an IL type as an F# type.

Import an IL type as an F# type.

Pre-check for ability to import a reference to a type definition, given an AbstractIL ILTypeRef, with caching

Import a reference to a type definition, given an AbstractIL ILTypeRef, with caching

Functions to import .NET binary metadata as TAST objects

Indicates whether we should visit multiple instantiations of the same generic interface or not

Indicates whether we can skip interface types that lie outside the reference set

The constraints for each typar copied from another typar can only be fixed up once we have generated all the new constraints, e.g. f<A :> List<B>, B :> List<A>> ...

Copy constraints. If the constraint comes from a type parameter associated with a type constructor then we are simply renaming type variables. If it comes from a generic method in a generic class (e.g. ty.M<_>) then we may be both substituting the instantiation associated with 'ty' as well as copying the type parameters associated with M and instantiating their constraints Note: this now looks identical to constraint instantiation.

Get the return type of an IL method, taking into account instantiations for type, return attributes and method generic parameters, and translating 'void' to 'None'.

Get the parameter type of an IL method.

Read an Abstract IL type from metadata, including any attributes that may affect the type itself, and convert to an F# type.

Read an Abstract IL type from metadata and convert to an F# type, ignoring nullness checking.

Read an Abstract IL type from metadata and convert to an F# type.

Check if a type exists somewhere in the hierarchy which has the given head type.

Check if a type exists somewhere in the hierarchy which has the same head type as the given type (note, the given type need not have a head type at all)

Check if a type has a particular head type

Check if two types have the same nominal head type

Get all interfaces of a type, including the type itself if it is an interface

Get all super types of the type, including the type itself

Search for one element where a function returns a 'Some' result, following interfaces

Search for one element satisfying a predicate, following interfaces

Iterate, following interfaces. Skipping interfaces that lie outside the referenced assembly set is allowed.

Fold, following interfaces. Skipping interfaces that lie outside the referenced assembly set is allowed.

Fold, do not follow interfaces (unless the type is itself an interface)

Collect the set of immediate declared interface types for an F# type, but do not traverse the type hierarchy to collect further interfaces.

Get the base type of a type, taking into account type instantiations. Return None if the type has no base type.

Represents the information about the compiled form of a method signature. Used when analyzing implementation relations between members and abstract slots.

An F# use of an event backed by provided metadata

An F# use of an event backed by .NET metadata

An F# use of an event backed by F#-declared metadata

Get the intra-assembly XML documentation for the property.

Get the TcGlobals associated with the object

Get the 'remove' method associated with an event

Indicates if the enclosing type for the event is a value type. For an extension event, this indicates if the event extends a struct type.

Indicates if this property is static.

Indicates if this is an extension member

Indicates if this event has an associated XML comment authored in this assembly.

Get the logical name of the event.

Get the event name in core DisplayName form (no backticks or parens added)

Get the display name of the event. Backticks and parens are added implicitly for non-identifiers.

Get the declaring type or module holding the method. Note that C#-style extension properties don't exist in the C# design as yet. If this is an F#-style extension method it is the logical module holding the value for the extension method.

Try to get an arbitrary F# ValRef associated with the member. This is to determine if the member is virtual, amongst other things.

Get the enclosing type of the event. If this is an extension member, then this is the apparent parent, i.e. the type the event appears to extend.

Get the enclosing type of the method info, using a nominal type for tuple types

Get the 'add' method associated with an event

Get the delegate type associated with the event.

Get custom attributes for events (only applicable for IL events)

Test whether two event infos have the same underlying definition. Compatible with ItemsAreEffectivelyEqual relation.

Calculates a hash code of event info (similar as previous) Compatible with ItemsAreEffectivelyEqual relation.

Describes an F# use of an event

Get the declaring type of the event as an ILTypeRef

Get the ILMethInfo describing the 'remove' method associated with the event

Get the raw Abstract IL metadata for the event

Indicates if the property is static

Get the declaring IL type of the event as an ILTypeInfo

Get the name of the event

Get the enclosing ("parent"/"declaring") type of the field.

Get the ILMethInfo describing the 'add' method associated with the event

Describes an F# use of an event backed by Abstract IL metadata

An F# use of a property backed by provided metadata

An F# use of a property backed by Abstract IL metadata

An F# use of a property backed by F#-declared metadata

Get the intra-assembly XML documentation for the property.

Get the TcGlobals associated with the object

Get a MethInfo for the 'setter' method associated with the property

Get the logical name of the property.

True if the getter (or, if absent, the setter) is a virtual method

Indicates if the enclosing type for the property is a value type. For an extension property, this indicates if the property extends a struct type.

Indicates if the property is a IsABC union case tester implied by a union case definition

Indicates if this property is static.

Indicates whether IL property has an init-only setter (i.e. has the `System.Runtime.CompilerServices.IsExternalInit` modifier)

Is the property required (has the RequiredMemberAttribute).

Indicates if the property is logically a 'newslot', i.e. hides any previous slots of the same name.

Indicates if this property is an indexer property, i.e. a property with arguments. <code lang="fsharp"> member x.Prop with get (indexPiece1:int,indexPiece2: string) = ... and set (indexPiece1:int,indexPiece2: string) value = ... </code>

Indicates if this is an F# property compiled as a CLI event, e.g. a [<CLIEvent>] property.

Indicates if this is an extension member

Indicates if the getter (or, if absent, the setter) for the property is a dispatch slot.

Indicates if this property is marked 'override' and thus definitely overrides another property.

Indicates if this property has an associated setter method.

Indicates if this property has an associated getter method.

Indicates if this property has an associated XML comment authored in this assembly.

Get the property name in core DisplayName form (no backticks or parens added)

Get the display name of the property. Backticks and parens are added implicitly for non-identifiers.

Get the declaring type or module holding the method. Note that C#-style extension properties don't exist in the C# design as yet. If this is an F#-style extension method it is the logical module holding the value for the extension method.

Try to get an arbitrary F# ValRef associated with the member. This is to determine if the member is virtual, amongst other things.

Get the enclosing type of the property. If this is an extension member, then this is the apparent parent, i.e. the type the property appears to extend.

Get the enclosing type of the method info, using a nominal type for tuple types

Test whether two property infos have the same underlying definition. Uses the same techniques as 'MethInfosUseIdenticalDefinitions'. Compatible with ItemsAreEffectivelyEqual relation.

Get the result type of the property

Get the types of the indexer parameters associated with the property

Get the names and types of the indexer parameters associated with the property If the property is in a generic type, then the type parameters are instantiated in the types returned.

Get the details of the indexer parameters associated with the property

Return a new property info where there is no associated setter, only an associated getter. Property infos can combine getters and setters, assuming they are consistent w.r.t. 'virtual', indexer argument types etc. When checking consistency we split these apart

Return a new property info where there is no associated getter, only an associated setter. Property infos can combine getters and setters, assuming they are consistent w.r.t. 'virtual', indexer argument types etc. When checking consistency we split these apart

Calculates a hash code of property info. Must be compatible with ItemsAreEffectivelyEqual relation.

Describes an F# use of a property

Get the TcGlobals governing this value

Gets the ILMethInfo of the 'set' method for the IL property

Get the raw Abstract IL metadata for the IL property

Get the name of the IL property

Indicates if the IL property is virtual

Indicates if the IL property is static

Is the property required (has the RequiredMemberAttribute).

Indicates if the IL property is logically a 'newslot', i.e. hides any previous slots of the same name.

Get the declaring IL type of the IL property, including any generic instantiation

Indicates if the IL property has a 'set' method

Indicates if the IL property has a 'get' method

Gets the ILMethInfo of the 'get' method for the IL property

Get the apparent declaring type of the method as an F# type. If this is a C#-style extension method then this is the type which the method appears to extend. This may be a variable type.

Like ApparentEnclosingType but use the compiled nominal type if this is a method on a tuple type

Get the return type of the IL property. Any type parameters of the enclosing type are instantiated in the type returned.

Get the types of the indexer arguments associated with the IL property. Any type parameters of the enclosing type are instantiated in the type returned.

Get the names and types of the indexer arguments associated with the IL property. Any type parameters of the enclosing type are instantiated in the type returned.

Describes an F# use of a property backed by Abstract IL metadata

Get a reference to the F# metadata for the uninstantiated union case

Get the F# metadata for the uninstantiated union case

Get the list of types for the instantiation of the type parameters of the declaring type of the union case

Get a reference to the F# metadata for the declaring union type

Get the F# metadata for the declaring union type

Get the logical name of the union case.

Get the core of the display name of the union case Backticks and parens are not added for non-identifiers. Note logical names op_Nil and op_ColonColon become [] and :: respectively.

Get the display name of the union case Backticks and parens are added implicitly for non-identifiers. Note logical names op_Nil and op_ColonColon become ([]) and (::) respectively.

Get the instantiation of the type parameters of the declaring type of the union case

Describes an F# use of a union case

Get the generic instantiation of the declaring type of the field

Get a reference to the F# metadata for the F#-declared record, class or struct type

Get the F# metadata for the F#-declared record, class or struct type

Get a reference to the F# metadata for the uninstantiated field

Get the F# metadata for the uninstantiated field

Get the logical name of the field in an F#-declared record, class or struct type

Indicate if the field is a literal field in an F#-declared record, class or struct type

Indicate if the field is a static field in an F#-declared record, class or struct type

Get the (instantiated) type of the field in an F#-declared record, class or struct type

Get the name of the field, same as LogicalName Note: no double-backticks added for non-identifiers

Get the name of the field, with double-backticks added if necessary

Get the enclosing (declaring) type of the field in an F#-declared record, class or struct type

Describes an F# use of a field in an F#-declared record, class or struct type

Represents a single use of a field backed by provided metadata

Represents a single use of a field backed by Abstract IL metadata

Get the type instantiation of the declaring type of the field

Get the scope used to interpret IL metadata

Indicates if the field is a literal field with an associated literal value

Indicates if the field is a member of a struct or enum type

Indicates if the field is static

Indicates if the field has the 'specialname' property in the .NET IL

Indicates if the field is readonly (in the .NET/C# sense of readonly)

Get a reference to the declaring type of the field as an ILTypeRef

Get the type of the field as an IL type

Get an (uninstantiated) reference to the field as an Abstract IL ILFieldRef

Get the name of the field

Get the core of the display name for the field. This is the same as the logical name.

Get the enclosing ("parent"/"declaring") type of the field.

Like ApparentEnclosingType but use the compiled nominal type if this is a method on a tuple type

Tests whether two infos have the same underlying definition. Compatible with ItemsAreEffectivelyEqual relation.

Get the type of the field as an F# type

Calculates a hash code of field info. Must be compatible with ItemsAreEffectivelyEqual relation.

Represents a single use of a IL or provided field from one point in an F# program

Describes a use of a method backed by provided metadata

Describes a use of a pseudo-method corresponding to the default constructor for a .NET struct type

A pseudo-method used by F# typechecker to treat Object.ToString() of known types as returning regular string, not `string?` as in the BCL

Describes a use of a method backed by Abstract IL # metadata

Describes a use of a method declared in F# code and backed by F# metadata.

Get the XML documentation associated with the method

Get the TcGlobals value that governs the method declaration

Get the information about provided static parameters, if any

Get a list of argument-number counts, one count for each set of curried arguments. For an extension member, drop the 'this' argument.

Get the method name in LogicalName form, i.e. the name as it would be stored in .NET metadata

Indicates if the method is a get_IsABC union case tester implied by a union case definition

Indicates if the enclosing type for the method is a value type. For an extension method, this indicates if the method extends a struct type.

Indicates if this method is read-only; usually by the [<IsReadOnly>] attribute. Must be an instance method. Receiver must be a struct type.

Indicates if this method takes no arguments

Does the method appear to the user as an instance method?

Indicates if this is an IL method.

Indicates if this is an F#-style extension member.

Check if this method is an explicit implementation of an interface member

Indicates if this method is a generated method associated with an F# CLIEvent property compiled as a .NET event

Indicates if this is an extension member.

Check if this method is marked 'override' and thus definitely overrides another method.

Indicates if this is an C#-style extension member.

Indicates, whether this method has `IsExternalInit` modreq.

Indicates if this is a method defined in this assembly with an internal XML comment

Get the number of generic method parameters for a method. For an extension method this includes all type parameters, even if it is extending a generic type.

Get the formal generic method parameters for the method as a list of type variables. For an extension method this includes all type parameters, even if it is extending a generic type.

Get the formal generic method parameters for the method as a list of variable types.

Get the extension method priority of the method, if it has one.

Get the extension method priority of the method. If it is not an extension method then use the highest possible value since non-extension methods always take priority over extension members.

Get the method name in core DisplayName form (no backticks or parens added)

Get the method name in DisplayName form

Get the actual type instantiation of the declaring type associated with this use of the method. For extension members this is empty (the instantiation of the declaring type).

Get the declaring type or module holding the method. If this is an C#-style extension method then this is the type holding the static member that is the extension method. If this is an F#-style extension method it is the logical module holding the value for the extension method.

Get the method name in DebuggerDisplayForm

Try to get an arbitrary F# ValRef associated with the member. This is to determine if the member is virtual, amongst other things.

Get the enclosing type of the method info. If this is an extension member, then this is the apparent parent, i.e. the type the method appears to extend. This may be a variable type.

Get the enclosing type of the method info, using a nominal type for tuple types

Tries to get the object arg type if it's a byref type.

Indicates if this is an extension member (e.g. on a struct) that takes a byref arg

Tests whether two method infos have the same underlying definition. Used to merge operator overloads collected from left and right of an operator constraint. Compatible with ItemsAreEffectivelyEqual relation.

Indicates if this method is an extension member that is read-only. An extension member is considered read-only if the first argument is a read-only byref (inref) type.

Apply a type instantiation to a method info, i.e. apply the instantiation to the enclosing type.

Get the ParamData objects for the parameters of a MethInfo

Get the signature of an abstract method slot.

Get the parameter types of a method info

Get the parameter names of a MethInfo

Get the ParamData objects for the parameters of a MethInfo

Get the parameter attributes of a method info, which get combined with the parameter names and types

Get the (zero or one) 'self'/'this'/'object' arguments associated with a method. An instance method returns one object argument.

Select all the type parameters of the declaring type of a method. For extension methods, no type parameters are returned, because all the type parameters are part of the apparent type, rather the declaring type, even for extension methods extending generic types.

Get the return type of a method info, where 'void' is returned as 'unit'

Get custom attributes for method (only applicable for IL methods)

Get the return type of a method info, where 'void' is returned as 'None'

Build IL method infos.

Build IL method infos for a C#-style extension method

Calculates a hash code of method info. Compatible with ItemsAreEffectivelyEqual relation.

Add the actual type instantiation of the apparent type of an F# extension method.

Describes an F# use of a method

Get the Abstract IL metadata associated with the method.

Get the Abstract IL metadata corresponding to the parameters of the method. If this is an C#-style extension method then drop the object argument.

Get the number of parameters of the method

Get the Abstract IL scope information associated with interpreting the Abstract IL metadata that backs this method.

Indicates if the IL method is marked virtual.

Does it appear to the user as a static method?

Indicates if the method has protected accessibility,

Does it have the .NET IL 'newslot' flag set, and is also a virtual?

Does it appear to the user as an instance method?

Indicates if the method is an extension method

Indicates if the IL method is marked final.

Indicates if the method is a constructor

Indicates if the method is a class initializer.

Indicates if the IL method is marked abstract.

Get the IL name of the method

Get a reference to the method (dropping all generic instantiations), as an Abstract IL ILMethodRef.

Get the declaring type associated with an extension member, if any.

Get the formal method type parameters associated with a method.

Get the instantiation of the declaring type of the method. If this is an C#-style extension method then this is empty because extension members are never in generic classes.

Get the declaring type of the method. If this is an C#-style extension method then this is the IL type holding the static member that is the extension method.

Get the apparent declaring type of the method as an F# type. If this is a C#-style extension method then this is the type which the method appears to extend. This may be a variable type.

Like ApparentEnclosingType but use the compiled nominal type if this is a method on a tuple type

Indicates if the method is marked with the [<IsReadOnly>] attribute. This is done by looking at the IL custom attributes on the method.

Indicates if the method is marked as a DllImport (a PInvoke). This is done by looking at the IL custom attributes on the method.

Get all the argument types of the IL method. Include the object argument even if this is an C#-style extension method.

Get the argument types of the IL method. If this is an C#-style extension method then drop the object argument.

Get info about the arguments of the IL method. If this is an C#-style extension method then drop the object argument. Any type parameters of the enclosing type are instantiated in the type returned.

Get the (zero or one) 'self'/'this'/'object' arguments associated with an IL method. An instance extension method returns one object argument.

Get the F# view of the return type of the method, where 'void' is 'unit'.

Get the compiled return type of the method, where 'void' is None.

Describes an F# use of an IL method.

Get the compiled nominal type. In the case of tuple types, this is a .NET tuple type

Describes an F# use of an IL type, including the type instantiation associated with the type at a particular usage point.

Full information about a parameter returned for use by the type checker and language service.

Partial information about a parameter returned for use by the Language Service

The argument is optional, and is a caller-side .NET optional or default arg. Note this is correctly termed caller side, even though the default value is optically specified on the callee: in fact the default value is read from the metadata and passed explicitly to the callee on the caller side.

The argument is optional, and is an F# callee-side optional arg

The argument is not optional

Compute the OptionalArgInfo for an IL parameter This includes the Visual Basic rules for IDispatchConstant and IUnknownConstant and optional arguments.

Represents information about a parameter indicating if it is optional.

The caller-side value for the optional arg, if any

Describes the sequence order of the introduction of an extension method. Extension methods that are introduced later through 'open' get priority in overload resolution.

Used to hide/filter members from super classes based on signature

Used to hide/filter members from base classes based on signature

Used to hide/filter members from super classes based on signature

Used to hide/filter members from super classes based on signature Inref and outref parameter types will be treated as a byref type for equivalency.

Inref and outref parameter types will be treated as a byref type for equivalency.

Get the information about the compiled form of a method signature. Used when analyzing implementation relations between members and abstract slots.

Strips inref and outref to be a byref.

Find the delegate type that an F# event property implements by looking through the type hierarchy of the type of the property for the first instantiation of IDelegateEvent.

Create an error object to raise should an event not have the shape expected by the .NET idiom described further below

Construct the data representing the signature of an abstract method slot

Construct the data representing a parameter in the signature of an abstract method slot

The slotsig returned by methInfo.GetSlotSig is in terms of the type parameters on the parent type of the overriding method. Reverse-map the slotsig so it is in terms of the type parameters for the overriding method

Get the return type of a provided method, where 'void' is returned as 'None'

Check if an F#-declared member value is an explicit interface member implementation

Check if an F#-declared member value is an 'override' or explicit member implementation

Check if an F#-declared member value is a dispatch slot

Check if an F#-declared member value is a virtual method

Indicates if an F#-declared function or member value is a CLIEvent property compiled as a .NET event

An exception type used to raise an error using the old error system. Error text: "A definition to be compiled as a .NET event does not have the expected form. Only property members can be compiled as .NET events."

An AccessorDomain which returns all items

An AccessorDomain which returns everything but .NET private/internal items. This is used - when solving member trait constraints, which are solved independently of accessibility - for failure paths in error reporting, e.g. to produce an error that an F# item is not accessible - an adhoc use in service.fs to look up a delegate signature

An AccessorDomain which returns public items

cpaths: indicates we have the keys to access any members private to the given paths tyconRefOpt: indicates we have the keys to access any protected members of the super types of 'TyconRef'

Represents the 'keys' a particular piece of code can use to access other constructs?.

Compute the accessibility of a provided member

Indicate if a provided member is accessible

Indicates if a type is accessible (both definition and instantiation)

Check that a type definition and its representation contents are accessible

Indicates if a type definition and its representation contents are accessible

Check that an entity is accessible

Indicates if an entity is accessible

Indicates if an F# item is accessible

The basic logic of private/internal/protected/InternalsVisibleTo/public accessibility

Logic associated with checking "ObsoleteAttribute" and other attributes on items from name resolution

"Single Feasible Type" inference Look for the unique supertype of ty2 for which ty2 :> ty1 might feasibly hold

Adjust a lambda expression to match the argument counts expected in the ValReprInfo

Break apart lambdas according to a given expected ValReprInfo that the lambda implements.

Break apart lambdas according to a given expected ValReprInfo that the lambda implements.

Choose solutions for Expr.TyChoose type "hidden" variables introduced by letrec nodes. Also used by the pattern match compiler to choose type variables when compiling patterns at generalized bindings. e.g. let ([], x) = ([], []) Here x gets a generalized type "list<'T>".

The feasible coercion relation. Part of the language spec.

The feasible equivalence relation after stripping Measures.

The feasible equivalence relation. Part of the language spec.

The feasible equivalence relation. Part of the language spec.

Implements a :> b without coercion based on finalized (no type variable) types

Primary relations on types and signatures, with the exception of constraint solving and method overload resolution.

Represents information about the delegate - the Invoke MethInfo, the delegate argument types, the delegate return type and the overall F# function type for the function type associated with a .NET delegate type

Try and find a record or class field for a type.

Perform type-directed name resolution of a particular named member in an F# type

Check if the given language feature is supported by the runtime.

Determine if a type has a static abstract method with the given name somewhere in its hierarchy

Get the trait infos for a type variable (empty for everything else)

Read the record or class fields of a type, including inherited ones. Cache the result for monomorphic types.

Read the raw method sets of a type, including inherited ones. Cache the result for monomorphic types

Get the super-types of a type, excluding interface types.

Get the flattened list of intrinsic properties in the hierarchy

Get the sets of intrinsic properties in the hierarchy (not including extension properties)

Get the flattened list of intrinsic methods in the hierarchy

Get the sets of intrinsic methods in the hierarchy (not including extension methods)

Read the IL fields of a type, including inherited ones. Cache the result for monomorphic types.

Read the events of a type, including inherited ones. Cache the result for monomorphic types.

Get the super-types of a type, including interface types.

Find the op_Implicit for a type

Exclude properties from super types which have the same name as a property in a more specific type.

Exclude methods from super types which have the same signature as a method in a more specific type.

Get the declared IL fields of a type, not including inherited fields

An InfoReader is an object to help us read and cache infos. We create one of these for each file we typecheck.

Similar to "IgnoreOverrides", but filters the items bottom-to-top, and discards all when finds first non-virtual member which hides one above it in hierarchy.

Get overrides instead of abstract slots when measuring whether a class/interface implements all its required slots.

Prefer items toward the top of the hierarchy, which we do if the items are virtual but not when resolving base calls.

Indicates if we prefer overrides or abstract slots.

Sets of methods up the hierarchy, ignoring duplicates by name and sig. Used to collect sets of virtual methods, protected methods, protected properties etc.

A helper type to help collect properties. Join up getters and setters which are not associated in the F# data structure

Try to find the xml doc associated with the assembly name and metadata key

Try to find the name of the metadata file for this external definition

Indicates if an event info is associated with a delegate type that is a "standard" .NET delegate type with a sender parameter.

Try and interpret a delegate type as a "standard" .NET delegate type associated with an event, with a "sender" parameter.

Given a delegate type work out the minfo, argument types, return type and F# function type by looking at the Invoke signature of the delegate.

Get a set of most specific override methods.

Try to find a particular named property on a type. Only used to ensure that local 'let' definitions and property names are distinct, a somewhat adhoc check in tc.fs.

Try to detect the existence of a method on a type.

Perform type-directed name resolution of a particular named member in an F# type

Get the flattened list of intrinsic properties in the hierarchy. If the PropInfo is get-only or set-only, try to find its setter or getter from the hierarchy.

Get the flattened list of intrinsic properties in the hierarchy

Get the flattened list of intrinsic methods in the hierarchy

Get the sets intrinsic properties in the hierarchy (not including extension properties)

Get the sets of intrinsic methods in the hierarchy (not including extension methods)

Exclude properties from super types which have the same name as a property in a more specific type.

Exclude methods from super types which have the same signature as a method in a more specific type.

Get the declared constructors of any F# type

From the given method sets, filter each set down to the most specific ones.

Get the items that are considered the most specific in the hierarchy out of the given items by type.

Checks whether the given type has an indexer property.

Query the immediate properties of an F# type, not taking into account inherited properties. The optFilter parameter is an optional name to restrict the set of properties returned.

Query the immediate properties of an F# type, not taking into account inherited properties. The optFilter parameter is an optional name to restrict the set of properties returned.

Query the immediate methods of an F# type, not taking into account inherited methods. The optFilter parameter is an optional name to restrict the set of properties returned.

Query the immediate methods of an F# type, not taking into account inherited methods. The optFilter parameter is an optional name to restrict the set of properties returned.

Try to select an F# value when querying members, and if so return a MethInfo that wraps the F# value.

Select members from a type by name, searching the type hierarchy if needed

Convert a MethInfo to a F# signature

Print Signatures/Types, for signatures, intellisense, quick info, FSI responses

This predicate can be used once type inference is complete, before then it is an approximation that doesn't assert any new constraints

Generate the hash/compare functions we add to user-defined types by default.

Indicates whether we want to report found items to the name resolution sink

Notify the sink of the information needed to complete recording a use of a symbol for the purposes of the language service. One of the callbacks should be called by the checker. The first callback represents a case where we have learned the type instantiation of a generic method or value. The second represents the case where we have resolved overloading and/or a specific override. The 'Item option' contains the candidate overrides.

Notification is not needed

Specifies extra work to do after overload resolution

Indicates whether we permit a direct reference to a type generator. Only set when resolving the right-hand-side of a [<Generate>] declaration.

Indicates if a warning should be given for the use of upper-case identifiers in patterns

Indicates resolution within an expression, either A.B.C (static) or expr.A.B.C (instance) and whether we should filter content according to instance/static characteristic.

Indicates the kind of lookup being performed. Note, this type should be made private to nameres.fs.

Indicates if a lookup requires a match on the instance/static characteristic. This is not supplied at all lookup sites - in theory it could be, but currently diagnostics on many paths rely on returning all the content and then filtering it later for instance/static characteristic. When applied, this also currently doesn't filter all content - it is currently only applied to filter out extension methods that have a static/instance mismatch.

Indicates if we only need one result or all possible results from a resolution.

An abstract type for reporting the results of name resolution and type checking, and which allows temporary suspension and/or redirection of reporting.

Get all the uses of all symbols reported to the sink

Get all the resolutions reported to the sink

Get all open declarations reported to the sink

Get the format specifier locations

Create a TcResultsSinkImpl

An implementation of ITypecheckResultsSink to collect information during type checking

Cached line-end normalized source text and an array of line end positions, used for format string parsing

Get the current source

Record that an open declaration occurred in a given scope range

Record that a name resolution occurred at a specific location in the source

Record that a method group name resolution occurred at a specific location in the source

Record that a printf format specifier occurred at a specific location in the source

Record that an expression has a specific type at the given range.

Record that an environment is active over the given scope range

An abstract type for reporting the results of name resolution and type checking

Array of line start positions

Source text

Source text and an array of line end positions, used for format string parsing

Empty collection of symbol uses

All the uses of all items within the file

Get all the uses of a particular item within the file

Get the locations of all the printf format specifiers in the file

Represents container for all name resolutions that were met so far when typechecking some particular file

Represents the empty set of resolutions

Exact name resolutions

Represents additional resolutions of names to groups of methods. CapturedNameResolutions should be checked when no captured method group is found. See TypeCheckInfo.GetCapturedNameResolutions for example.

Information of exact types found for expressions, that can be to the left of a dot. typ - the inferred type for an expression

Name resolution environments for every interesting region in the file. These regions may overlap, in which case the smallest region applicable should be used.

The starting and ending position

line and column

Naming environment--for example, currently open namespaces.

The active instantiation for any generic type parameters

Information about the occurrence of the symbol

Named item

Information about printing. For example, should redundant keywords be hidden?

The access rights of code at the location

Represents the kind of the occurrence when reporting a name in name resolution

Represents information which guides name resolution of types.

Indicates definite knowledge of empty type arguments, i.e. the logical equivalent of name< >

Deduce definite knowledge of type arguments

Represents information about the generic argument count of a type name when resolving it. In some situations we resolve "List" to any type definition with that name regardless of the number of generic arguments. In others, we know precisely how many generic arguments are needed.

Indicates we are resolving type names to type definitions

Indicates we are resolving type names to constructor methods.

Indicates whether we are resolving type names to type definitions or to constructor methods.

A flag which indicates if it is an error to have two declared type parameters with identical names in the name resolution environment.

Indicates whether an identifier (single or long) is followed by an extra dot. Typically used to provide better tooling and error reporting.

Typars (always available by unqualified names). Further typars can be in the tpenv, a structure folded through each top-level definition.

Other extension members unindexed by type

Extension members by type and name

Tycons available by unqualified, demangled names (i.e. (List,1) --> TyconRef)

Tycons available by unqualified, demangled names (i.e. (List,1) --> TyconRef)

Tycons indexed by the various names that may be used to access them, e.g. "List" --> multiple TyconRef's for the various tycons accessible by this name. "List`1" --> TyconRef

Record or unions that may have type instantiations associated with them when record labels or union cases are used in an unqualified context.

RecdField labels in scope. RecdField labels are those where type are inferred by label rather than by known type annotation. Bools indicate if from a record, where no warning is given on indeterminate lookup

Fully qualified modules and namespaces. 'open' does not change this.

Modules accessible via "." notation. Note this is a multi-map. Adding a module abbreviation adds it a local entry to this List.map. Likewise adding a ccu or opening a path adds entries to this List.map.

Data Tags and Active Pattern Tags available by unqualified name

Enclosing type instantiations that are associated with an unqualified type item

Values and Data Tags available by unqualified name

Display environment information for output

The environment of information used to resolve names

ILExtMem(declaringTyconRef, ilMetadata, pri) IL-style extension member, backed by some kind of method with an [<Extension>] attribute

F#-style Extrinsic extension member, defined in F# code

Describes the sequence order of the introduction of an extension method. Extension methods that are introduced later through 'open' get priority in overload resolution.

Information about an extension member held in the name resolution environment

Represents a record field resolution and the information if the usage is deprecated.

Pairs an Item with a TyparInstantiation showing how generic type variables of the item are instantiated at a particular usage point.

Represents the potential resolution of an unqualified name to a type.

Represents the resolution of a name to a named property setter

Represents the resolution of a name to a named argument

Represents the resolution of a name to an operator

Represents the resolution of a name to a module or namespace

Represents the resolution of a name to a type variable

Represents the resolution of a name to a custom builder in the F# computation expression syntax

CustomOperation(nm, helpText, methInfo) Used to indicate the availability or resolution of a custom query operation such as 'sortBy' or 'where' in computation expression syntax

Represents the resolution of a name to a group of types

Represents the resolution of a name to a delegate

Represents the resolution of a name to a constructor

Represents the resolution of a name to a group of methods.

Represents the resolution of a name to a property

Represents the resolution of a name to an event

Represents the resolution of a name to a .NET field

Represents the resolution of a name at the point of its own definition.

Represents the resolution of a name to a field of an anonymous record type.

Represents the resolution of a name to a union case field.

Represents the resolution of a name to an F# trait

Represents the resolution of a name to an F# record or exception field.

Represents the resolution of a name to an F# exception definition.

Represents the resolution of a name to an F# active pattern case within the body of an active pattern.

Represents the resolution of a name to an F# active pattern result.

Represents the resolution of a name to an F# union case.

Represents the resolution of a name to an F# value or function.

The text for the item to use in the declaration list. This does not include backticks, parens etc. Note: here "Core" means "without added backticks or parens"

The full text for the item to show in error messages and to use in code. This includes backticks, parens etc.

Represents an item that results from name resolution

The named argument is a static parameter to a provided type.

The named argument is an argument of a method

Represents the item with which a named argument is associated.

A NameResolver is a context for name resolution. It primarily holds an InfoReader.

Resolve a (possibly incomplete) long identifier to a set of possible resolutions, qualified by type.

Resolve a (possibly incomplete) long identifier to a set of possible resolutions.

Try to resolve a long identifier as type.

A generator of type instantiations used when no more specific type instantiation is known.

Resolve a long identifier occurring in an expression position, qualified by a type.

Resolve a long identifier occurring in an expression position.

Return the fields for the given class or record

Resolve a (possibly incomplete) long identifier to a list of possible class or record fields

Resolve a long identifier occurring in an expression position

Resolve a long identifier to a nested field

Resolve a long identifier to a field

Resolve a long identifier to a type definition

Resolve a long identifier representing a type name

Resolve a long identifier when used in a pattern.

Resolve a long identifier using type-qualified name resolution.

Resolve a long identifier to an object constructor.

Resolve a long identifier to a namespace, module.

Given a set of type parameters, make new inference type variables for each and ensure that the constraints on the new type variables are adjusted. Returns 1. the new type parameters 2. the instantiation mapping old type parameters to inference variables 3. the inference type variables as a list of types.

Given a set of formal type parameters and their constraints, make new inference type variables for each and ensure that the constraints on the new type variables are adjusted to refer to these. Returns 1. the new type parameters 2. the instantiation mapping old type parameters to inference variables 3. the inference type variables as a list of types.

Given a method, which may be generic, make new inference type variables for its generic parameters, and ensure that the constraints the new type variables are adjusted. Returns the inference type variables as a list of types.

Given a set of type parameters, make new inference type variables for each and ensure that the constraints on the new type variables are adjusted. Returns the inference type variables as a list of types.

Create a list of inference type variables, one for each element in the input list

Create an inference type variable representing an error condition when checking a measure

Create an inference type variable representing an error condition when checking an expression

Create an inference type variable for the kind of a byref pointer

Create an inference type variable

Create a type variable representing the use of a "_" in F# code

Generate a new reference to a record field with a fresh type instantiation

Get the available methods of a type (both declared and inherited)

Get all the available properties of a type (only extension)

Get all the available properties of a type (both intrinsic and extension)

Report an open declaration

Report type at range, but don't use it in features like code completion, only in TryGetCapturedType

Report a specific name resolution at a source range

Report a specific name resolution at a source range, replacing any previous resolutions

Report a specific method group name resolution at a source range

Report a specific name resolution at a source range

Report the active name resolution environment for a source range

Temporarily suspend reporting of name resolution and type checking results

Temporarily redirect reporting of name resolution and type checking results

Hash compatible with ItemsAreEffectivelyEqual

Check for equality, up to signature matching

Qualified lookup of type names in the environment

Add some declared type parameters to the name resolution environment

Add the content of a type to the name resolution environment

Add a list of modules or namespaces to the name resolution environment

Add a single modules or namespace to the name resolution environment

Add a list of module or namespace to the name resolution environment, including any sub-modules marked 'AutoOpen'

Add a module abbreviation to the name resolution environment

Add an F# exception definition to the name resolution environment

Add a list of type definitions to the name resolution environment

Add active pattern result tags to the environment.

Add a single F# value to the environment.

Add some extra items to the environment for Visual Studio, e.g. record members

Add extra items to the environment for Visual Studio, e.g. static members

Find a field in anonymous record type

Get the active pattern elements defined in a module, if any. Cache in the slot in the module type.

Used to report a warning condition for the use of upper-case identifiers in patterns

Used to report an error condition where name resolution failed due to an indeterminate type

Check the names add up between a signature and its implementation. We check this first.

Primary relations on types and signatures, with the exception of constraint solving and method overload resolution.

A slot that *might* have ambiguity due to multiple inheritance; happens with default interface implementations.

Gets the method info.

Indicates a slot which does not have to be implemented, because an inherited implementation is available.

Indicates a slot which has a default interface implementation. A combination of this flag and the lack of IsOptional means the slot may have been reabstracted.

The overall information about a method implementation in a class or object expression

Get the properties relevant to determining if a uniquely-identified-override exists based on the syntactic information at the member signature prior to type inference. This is used to pre-assign type information if it does

Get the methods relevant to determining if a uniquely-identified-override exists based on the syntactic information at the member signature prior to type inference. This is used to pre-assign type information if it does

"Type Completion" inference and a few other checks at the end of the inference scope

Get the slots of a type that can or must be implemented.

Check all implementations implement some dispatch slot.

Check all dispatch slots are implemented by some override.

Check if an override exactly matches the requirements for a dispatch slot.

Get the override information for an object expression method being used to implement dispatch slots

Format the signature of a MethInfo as a string as part of an error message

Format the signature of an override as a string as part of an error message

Primary logic related to method overrides.

Unnamed called out args: return these as part of the return tuple

Unnamed called optional args: pass defaults for these

Unassigned args

The method we're attempting to call

The formal instantiation of the method we're attempting to call

The types of the actual object arguments, if any

The instantiation of the method we're attempting to call

The generic instantiation of the method we're attempting to call

Return type after tupling of out args is taken into account

The return type after implicit deference of byref returns is taken into account

Args assigned to specify values for attribute fields and properties (these are not necessarily "property sets")

The property related to the method we're attempting to call, if any

Named setters

The argument analysis for each set of curried arguments

Represents the syntactic matching between a caller of a method and the called method. The constructor takes all the information about the caller and called side of a method, match up named arguments, property setters etc., and returns a CalledMeth object for further analysis.

Named args

Any unnamed caller arguments assigned to a "param array" argument

The called "ParamArray" argument, if any

Any unnamed caller arguments not otherwise assigned

The called arguments corresponding to "unnamed" arguments

Indicates whether a type directed conversion (e.g. int32 to int64, or op_Implicit) has been used in F# code

Represents the list of unnamed / named arguments at method call site remark: The usage of list list is due to tupling and currying of arguments, stemming from SynValInfo in the AST.

Represents the resolution of a caller argument as a named-setter argument

Represents the possibilities for a named-setter argument (a property, field, or a record field setter)

The argument on the caller side

The called argument in the method

The identifier for a named argument, if any

Represents a match between a caller argument and a called argument, arising from either a named argument or an unnamed argument.

In the following, 'T gets instantiated to: 1. the expression being supplied for an argument 2. "unit", when simply checking for the existence of an overload that satisfies a signature, or when finding the corresponding witness. Note the parametricity helps ensure that overload resolution doesn't depend on the expression on the callside (though it is in some circumstances allowed to depend on some type information inferred syntactically from that expression, e.g. a lambda expression may be converted to a delegate as an adhoc conversion. The bool indicates if named using a '?', making the caller argument explicit-optional

Generate the arguments passed for a set of (solved) traits in non-generic code

Generate a lambda expression for the given solved trait.

Generate a witness for the given (solved) constraint. Five possibilities are taken into account. 1. The constraint is solved by a .NET-declared method or an F#-declared method 2. The constraint is solved by an F# record field 3. The constraint is solved by an F# anonymous record field 4. The constraint is considered solved by a "built in" solution 5. The constraint is solved by a closed expression given by a provided method from a type provider In each case an expression is returned where the method is applied to the given arguments, or the field is dereferenced. None is returned in the cases where the trait has not been solved (e.g. is part of generic code) or there is an unexpected mismatch of some kind.

Build the argument list for a method call. Adjust for param array, optional arguments, byref arguments and coercions. For example, if you pass an F# reference cell to a byref then we must get the address of the contents of the ref. Likewise lots of adjustments are made for optional arguments etc.

Implements the elaborated form of adhoc conversions from functions to delegates at member callsites

Build a call to the System.Object constructor taking no arguments,

Build an expression that calls a given method info. This is called after overload resolution, and also to call other methods such as 'setters' for properties.

Make a call to a method info. Used by the optimizer and code generator to build calls to the type-directed solutions to member constraints.

Is this a 'base' call

F# supports some adhoc conversions to make expression fit known overall type

F# supports some adhoc conversions to make expression fit known overall type

Performs a set of constraint solver operations returning TypeDirectedConversionUsed and combines their results.

Performs a set of constraint solver operations returning TypeDirectedConversionUsed and combines their results.

Logic associated with resolving method calls.

Represents the typechecked, elaborated form of a pattern, prior to pattern-match compilation.

What should the decision tree contain for any incomplete match?

Compile a pattern into a decision tree and a set of targets.

Checks to run after all inference is complete.

Checks to run after all inference is complete, but before defaults are applied and internal unknowns solved

This table stores all unsolved, ungeneralized trait constraints, indexed by free type variable. That is, there will be one entry in this table for each free type variable in each outstanding, unsolved, ungeneralized trait constraint. Constraints are removed from the table and resolved each time a solution to an index variable is found.

The function used to freshen values we encounter during trait constraint solving

Add a post-inference check to run at the end of inference

Get the post-inference checks to run near the end of inference, but before defaults are applied

Get the post-inference checks to run at the end of inference

A function that denotes captured tcVal, Used in constraint solver and elsewhere to get appropriate expressions for a ValRef.

Each branch of the expression must convert to the type indicated

Each branch of the expression must have the type indicated

Represents a point where no subsumption/widening is possible

Represents known information prior to checking an expression or pattern, e.g. it's expected type

Cases for overload resolution failure that exists in the implementation of the compiler.

Captures relevant information for a particular failed overload resolution.

The type equation comes from a sequence expression.

The type equation comes from a pattern match guard.

The type equation comes from a return type of a pattern match clause (not the first clause).

The type equation comes from an downcast where a upcast could be used.

The type equation comes from a runtime type test.

The type equation comes from a yield in a computation expression.

The type equation comes from a return in a computation expression.

The type equation comes from a list or array constructor

The type equation comes from the verification of a tuple in record fields.

The type equation comes from the verification of record fields.

The type equation comes from a type check of the result of an else branch.

The type equation comes from an omitted else branch.

The type equation comes from an IF expression.

No context was given.

Information about the context of a type equation.

For some code like "let f() = ([] = [])", a free choice is made for a type parameter for an interior type variable. This chooses a solution for a type parameter subject to its constraints and applies that solution by using a constraint.

Generate the lambda argument passed for a use of a generic construct that accepts trait witnesses

Generate the arguments passed when using a generic construct that accepts traits witnesses

Determine if a codegen witness for a trait will require witness args to be available, e.g. in generic code

Generate a witness expression if none is otherwise available, e.g. in legacy non-witness-passing code

Remove the global constraints related to generalized type variables

Re-assess the staticness of the type parameters

The entry point to resolve the overloading for an entire call

Solves constraints using a mutable constraint-solver state

Parse "printf-style" format specifiers at compile time, producing a list of items that specify the types of the things that follow. Must be updated if the Printf runtime component is updated.

Find all unsolved inference variables after type inference for an entire file

Indicates that type references are emitted as integer indexes into a supplied table

Indicates that witness parameters are recorded

Convert quoted TAST data structures to structures ready for pickling

Perform the checks on the TAST for a file after type inference is complete.

The combinations of limits which apply.

The scope of this Limit, i.e. "to which scope can a Val safely escape?". Some values are not allowed to escape their scope. For example, a top-level function is allowed to return a byref type, but inner functions are not. This `scope` field is the information that lets us track that. (Recall that in general scopes are counted starting from 0 indicating the top-level scope, and increasing by 1 essentially for every nested `let`-binding, method, or module.) Some specific values which are often used: * the value 0 is used in NoLimit and other situations which don't limit where the Val can escape; * the value 1 is a "top-level local scope", allowing us to express the restriction "this cannot appear at the top level" (for example, `let x = &y` cannot appear at the top level).

A "limit" here is some combination of restrictions on a Val.

Construct a Limit which expresses "this Val must obey the first Limit and the second Limit simultaneously".

Indicates that no limit applies to some Val. It can appear at the top level or within a `let`-binding, and the Val does not have any byref- or span-related restrictions.

It's unlikely you want to use this module except within PostInferenceChecks. It's exposed to allow testing.

Implements a set of checks on the TAST for a file that can only be performed after type inference is complete.

Perform the TailCall analysis on the optimized TAST for a file. The TAST is traversed analogously to the PostInferenceChecks phase. For functions that are annotated with the [<TailCall>] attribute, a warning is emitted if they are called in a non-tailrecursive manner in the recursive scope of the function. The ModuleOrNamespaceContents aren't mutated in any way by performing this check.

A cache for ArgReprInfos which get created multiple times for the same values Since they need to be later mutated with updates from signature files this should make sure we're always dealing with the same instance and the updates don't get lost

The set of active conditional defines. The value is None when conditional erasure is disabled in tooling.

Used to resolve names

Used to read and cache information about types and members

Used to generate names

Does this .fs file have a .fsi file?

Is this a .fsi file?

Are we compiling the signature of a module from fslib?

Holds the current inference constraints

Holds a reference to the component being compiled. This field is very rarely used (mainly when fixing up forward references to fslib.

Used to generate new syntactic argument names in post-parse syntactic processing

Environment needed to convert IL types to F# types in the importer.

Are we in a script? if so relax the reporting of discarded-expression warnings at the top level

Set to true if this file causes the creation of generated provided types.

Guard against depth of expression nesting, by moving to new stack when a maximum depth is reached

Push an entry every time a recursive value binding is used, in order to be able to fix up recursive type applications as we infer type parameters

Represents the compilation environment for typechecking a single file in an assembly.

Represents the flags passed to TcPat regarding the binding location

Represents the context flowed left-to-right through pattern checking

Translation of patterns is split into three phases. The first collects names. The second is run after val_specs have been created for those names and inference has been resolved. The second phase is run by applying a function returned by the first phase. The input to the second phase is a List.map that gives the Val and type scheme for each value bound by the pattern.

Represents the results of the first phase of preparing simple values from a pattern

Holds the initial ValMemberInfo and other information before it is fully completed

Represents the ValReprInfo for a value, before the typars are fully inferred

Indicates whether constraints should be checked when checking syntactic types

A type to represent information associated with values to indicate what explicit (declared) type parameters are given and what additional type parameters can be inferred, if any. The declared type parameters, e.g. let f<'a> (x:'a) = x, plus an indication of whether additional polymorphism may be inferred, e.g. let f<'a, ..> (x:'a) y = x

Represents the current environment of type variables that have implicit scope (i.e. are without explicit declaration).

Here Some tcref indicates we can access protected members in all super types

Context information for type checker

Mutable accumulator for the current module type

Internals under these should be accessible

This field is computed from other fields, but we amortize the cost of computing it.

The list of items in the environment that may contain free inference variables (which may not be generalized). The relevant types may change as a result of inference equations being asserted, hence may need to be recomputed.

Name resolution information

Represents the type environment at a particular scope. Includes the name resolution environment, the ungeneralizable items from earlier in the scope and other information about the scope.

Represents an item in the environment that may restrict the automatic generalization of later declarations because it refers to type inference variables. As type inference progresses these type inference variables may get solved.

Is there an implicit constructor or an explicit one?

A handle to the boolean ref cell to hold success of initialized 'this' for 'type X() as x = ...' constructs

A handle to the ref cell to hold results of 'this' for 'type X() as x = ...' and 'new() as x = ...' constructs in case 'x' is used in the arguments to the 'inherits' call.

Object model constructors have a very specific form to satisfy .NET limitations. For "new = \arg. { new C with ... }" ctor = 3 indicates about to type check "\arg. (body)", ctor = 2 indicates about to type check "body" ctor = 1 indicates actually type checking the body expression 0 indicates everywhere else, including auxiliary expressions such expr1 in "let x = expr1 in { new ... }" REVIEW: clean up this rather odd approach ...

Represents information about object constructors

Represents information about the initialization field used to check that object constructors have completed before fields are accessed.

Determine if a syntactic expression inside 'seq { ... }' or '[...]' counts as a "simple sequence of semicolon separated values". For example [1;2;3]. 'acceptDeprecated' is true for the '[ ... ]' case, where we allow the syntax '[ if g then t else e ]' but ask it to be parenthesized

Check if a computation or sequence expression is syntactically free of 'yield' (though not yield!)

Constrain two types to be equal within this type checking context

Invoke pattern match compilation

simplified version of TcVal used in calls to BuildMethodCall (typrelns.fs) this function is used on typechecking step for making calls to provided methods and on optimization step (for the same purpose).

Represents a recursive binding after it has been both checked and generalized, but before initialization recursion has been rewritten

Represents a pattern that is used in a true match clause e.g. | pat -> expr

Represents a recursive binding after it has been both checked and generalized and after the special adjustments for 'as this' class initialization checks have been inserted into members.

Represents a recursive binding after it has been both checked and generalized

Represents the usage points of a recursive binding that need later adjustment once the type of the member of value is fully inferred.

Represents a recursive binding after it has been checked but prior to generalization

Represents a recursive binding after it has been normalized but before it has been checked

Represents a recursive binding after it has been normalized but before it's info has been put together

Represents the results of the second phase of checking simple values

Represents the results of the first phase of preparing bindings

RecursiveBindingInfo - flows through initial steps of TcLetrec

Represents a syntactic, unchecked binding after the resolution of the name resolution status of pattern constructors and after "pushing" all complex patterns to the right hand side.

NormalizedBindingRhs records the r.h.s. of a binding after some munging just before type checking.

The result of checking a value or member signature

Represents the initial information about a recursive binding

Indicates if a member binding is an object expression binding

Indicates whether the position being checked is precisely the r.h.s. of a "'T :> ***" constraint or a similar places where IWSAM types do not generate a warning

A binding in an expression

A binding in an object expression

A binding in a class

Extensions to a type in a different assembly

Extensions to a type within the same assembly

A binding in a module, or a member

A flag to represent the sort of bindings are we processing.

Indicates if member declarations are allowed to be override members.

Indicates if member declarations are allowed to be abstract members.

Provides information about the context for a value or member definition.

Represents information about the module or type in which a member or value is declared.

The results of applying let-style generalization after type checking.

Indicates whether a syntactic type is allowed to include new type variables not declared anywhere, e.g. `let f (x: 'T option) = x.Value`

The pattern syntax can also represent active pattern arguments. This routine converts from the pattern syntax to the expression syntax. Note we parse arguments to parameterized pattern labels as patterns, not expressions. This means the range of syntactic expression forms that can be used here is limited.

Check a long identifier 'Case' or 'Case argsR' that has been resolved to an active pattern case

Helper used to check both record expressions and record patterns

Allow the inference of structness from the known type, e.g. let (x: struct (int * int)) = (3,4)

Given the declaration of a function or member, complete the processing of its ValReprInfo once type parameters have been fully inferred via generalization.

Given the declaration of a function or member, process it to produce the ValReprInfo giving the names and attributes relevant to arguments and return, but before type parameters have been fully inferred via generalization.

Check a specification of a value or member in a signature or an abstract member

Check a syntactic type (with error recovery)

Check a syntactic type or unit of measure

Check a syntactic type

Check a collection of type parameters declarations

Check a set of explicitly declared constraints on type parameters

Check the application of a provided type to static args

Check a 'nameof' expression

Check an inheritance expression or other 'new XYZ()' expression

Part of check a collection of recursive bindings that might include members

Check a collection of `let rec` bindings

Get the binding for the implicit safe initialization check value if it is being used

Check an individual `let rec` binding

Check a set of let bindings in a class or module

Check a pattern being used as a pattern match

Try to check a syntactic statement and indicate if it's type is not unit without emitting a warning

Check a linear expression (e.g. a sequence of 'let') in a tail-recursive way and convert it to a typed tree expression, using the bodyChecker to check the parts that are not linear.

Check a syntactic expression and convert it to a typed tree expression

Check a syntactic statement and convert it to a typed tree expression.

Process a leaf construct where the actual type of that construct is already pre-known, and the overall type can be eagerly propagated into the actual type, including pre-calculating any type-directed conversion.

Check a syntactic expression and convert it to a typed tree expression. Possibly allow for subsumption flexibility and insert a coercion if necessary.

Check a syntactic expression and convert it to a typed tree expression

Check record names and types for cases like cases like `query { for ... join(for x in f(). }`

Check that 'args' have the correct number of elements for a tuple expression. If not, use 'tcArgs' to type check the given elements to show their correct types (if known) in the error message and raise the error

Check a syntactic expression and convert it to a typed tree expression

Check a constant value, e.g. a literal

Check a set of attributes which can only target specific elements

Check a set of attributes and allow failure because a later phase of type realization may successfully check the attributes (if the attribute type or its arguments is in the same recursive group)

Check a set of attributes

Check and publish a value specification (in a signature or 'abstract' member) to the module/namespace type accumulator and return the resulting Val(s). Normally only one 'Val' results but CLI events may produce both and add_Event and _remove_Event Val.

Mark a typar as no longer being an inference type variable

Publish a value definition to the module/namespace type accumulator.

Publish a value definition to the module/namespace type accumulator.

Publish a type definition to the module/namespace type accumulator.

Publish a module definition to the module/namespace type accumulator.

Produce a post-generalization type scheme for a simple type where no type inference generalization is applied.

Return a new environment suitable for processing declarations in the interior of a module definition given that the accumulator for the module type already exists.

Return a new environment suitable for processing declarations in the interior of a module definition including creating an accumulator for the module type.

Return a new environment suitable for processing declarations in the interior of a type definition

Make initial information for a member value

Make an initial implicit safe initialization value

Make simple values (which are not recursive nor members)

Make an initial 'base' value

Make an initial 'Val' and publish it to the environment and mutable module type accumulator.

Make the check for safe initialization of a member

Locate the environment within a particular namespace path, used to process a 'namespace' declaration.

Build the full ValReprInfo one type inference is complete.

Get the "this" variable from the lambda for an instance member binding

Get the accumulated module/namespace type for the current module/namespace being processed.

Produce a fresh view of an object type, e.g. 'List<T>' becomes 'List<?>' for new inference variables with the given rigidity.

Adjust a recursive binding after generalization

Process recursive bindings so that initialization is through laziness and is checked. The bindings may be either plain 'let rec' bindings or mutually recursive nestings of modules and types. The functions must iterate the actual bindings and process them to the overall result.

Get the expression resulting from turning an expression into an enumerable value, e.g. at 'for' loops

Compute the available access rights and module/entity compilation path for a particular location in code

Compute the available access rights from a particular location in code

Check if the type annotations and inferred type information in a value give a full and complete generic type for a value. If so, enable generic recursion.

After inference, view a ValScheme in a canonical way.

After inference, view a set of declared type parameters in a canonical way.

Check a super type is valid

Check the flags on a member definition for consistency

Check that a member can be included in an interface

Process a normalized recursive binding and prepare for progressive generalization

Set the type of a 'Val' after it has been fully inferred.

Add a list of values to the environment, producing a new environment. Report to the sink.

Add a value to the environment, producing a new environment

Add a value to the environment, producing a new environment. Report to the sink.

Add a list of explicitly declared type variables to the environment, producing a new environment

Merge together lists of type variables to generalize, keeping canonical order

Record the entire contents of a module or namespace type as not-generalizable, that is if any type variables occur free in the module or namespace type (because type inference is not yet complete), then they can't be generalized.

An empty environment of type variables with implicit scope

Take a syntactic binding and do the very first processing step to normalize it.

The allowed attribute targets for an F# top level 'do' expression

The allowed attribute targets for an F# module declaration

The allowed attribute targets for an F# exception declaration

The allowed attribute targets for an F# type declaration

The allowed attribute targets for an F# union case declaration - AttributeTargets.Method: union case with fields - AttributeTargets.Property: union case with no fields

The allowed attribute targets for an F# field declaration once it's known to be targeting a field not a property (see useGenuineField)

The allowed attribute targets for an F# field declaration

Given an environment, compute the set of type definitions which must appear before the current location, not after (to prevent use-before-definition of type definitions via type inference).

Given an environment, compute the set of trait solutions which must appear before the current location, not after (to prevent use-before definitions and forward calls via type inference filling in trait solutions).

Given an environment, compute the set of inference type variables which may not be generalised, because they appear somewhere in the types of the constructs available in the environment.

Check a set of simple patterns, e.g. the declarations of parameters for an implicit constructor.

This case is used for computation expressions which are sequence expressions. Technically the code path is different because it typechecks rather than doing a shallow syntactic translation, and generates calls into the Seq.* library and helpers rather than to the builder methods (there is actually no builder for 'seq' in the library). These are later detected by state machine compilation. Also "ienumerable extraction" is performed on arguments to "for".

Sequence expressions checking

Sequence expressions checking

Represents a single group of bindings in a class with an implicit constructor

vals represented as fields or members from this point on

vals mapped to representations

Indicates the set of field names taken within one incremental class

Given localRep saying how locals have been represented, e.g. as fields. Given an expr under a given thisVal context.

IncrClassReprInfo represents the decisions we make about the representation of 'let' and 'do' bindings in a type defined with implicit class construction.

Indicates how is a 'let' bound value in a class with implicit construction is represented in the TAST ultimately produced by type checking.

The value representing the 'this' variable within the implicit instance constructor.

The value representing the 'base' variable within the implicit instance constructor.

Data indicating if safe-initialization checks need to be inserted for this type.

The reference cell holding the 'this' parameter within the implicit constructor so it can be referenced in the arguments passed to the base constructor

The values representing the arguments to the implicit constructor.

The type of the implicit constructor, representing as a ValScheme.

The value representing the implicit constructor.

Typechecked info for implicit instance constructor and it's arguments

The name generator used to generate the names of fields etc. within the type.

The value representing the static implicit constructor. Lazy to ensure the static ctor value is only published if needed.

The copy of the type parameters allocated for implicit construction

The TyconRef for the type being defined

Typechecked info for implicit static constructor

Given a set of 'let' bindings (static or not, recursive or not) that make up a class, generate their initialization expression(s).

The information about the static implicit constructor The lhs information about the implicit constructor, the call to the super class constructor and whether we should we place a sequence point at the 'inheritedTys call? The declarations Record any unconstrained type parameters generalized for the outer members as "free choices" in the let bindings

Check and elaborate the "left hand side" of the implicit class construction syntax.

Check and elaborate the "left hand side" of the implicit class construction syntax.

Optimization information

For unit testing

The size after which we don't inline

size after which we start enforcing splitting sub-expressions to new methods, to avoid hitting .NET IL limitations

size after which we start chopping methods in two, though only at match targets

Use multiple threads. As soon as a given phase for a file has finished, start processing the next phase of the current file and the same phase of the next file.

Process files sequentially, on a single thread, doing all optimization phases for each file next to each other.

Indicates the value is only mutable during its initialization and before any access or capture

Check if an expression has an effect

Combine optimization infos

Ensure that 'internal' items are not exported in the optimization info

Rewrite the module info using the export remapping

Saving and re-reading optimization information

Optimize one implementation file in the given environment

For building optimization environments incrementally

top of expr toplevel? (true)

val not defined under lambdas

v -> recursive? * v list -- the others in the mutual binding

bound in a decision tree?

v -> binding repr

v -> context / APP inst args

Expands under-applied values of known arity to lambda expressions, and then reduce to bind any known arguments. The results are later optimized by Optimizer.fs

Analyze a TAST expression to detect the elaborated form of a sequence expression. Then compile it to a state machine represented as a TAST containing goto, return and label nodes. The returned state machine will also contain references to state variables (from internal 'let' bindings), a program counter (pc) that records the current state, and a current generated value (current). All these variables are then represented as fields in a hosting closure object along with any additional free variables of the sequence expression.

Detect a 'seq<int>' type

The construct was not a state machine

A state machine was recognised and was not compilable and no alternative is available

A state machine was recognised and was not compilable and an alternative is available

A state machine was recognised and was compilable

Analyze a TAST expression to detect the elaborated form of a state machine expression, a special kind of object expression that uses special code generation constructs.

Rewrite mutable locals to reference cells across an entire implementation file

The ILX generator.

Diagnostics from the AbsIL toolkit. You can reset the diagnostics stream to point elsewhere, or turn it off altogether by setting it to 'None'. The logging channel initially points to stderr. All functions call flush() automatically. REVIEW: review if we should just switch to System.Diagnostics

A utility type provided for completeness

A utility type provided for completeness

Decompose a type definition according to its kind.

Helpers for codegen: scopes for allocating new temporary variables.

Is the given assembly possibly a primary assembly? In practice, a primary assembly is an assembly that contains the System.Object type definition and has no referenced assemblies. However, we must consider assemblies that forward the System.Object type definition to be possible primary assemblies. Therefore, this will return true if the given assembly is the real primary assembly or an assembly that forwards the System.Object type definition. Assembly equivalency ignores the version here.

A table of common references to items in primary assembly (System.Runtime or mscorlib). If a particular version of System.Runtime.dll has been loaded then you should reference items from it via an ILGlobals for that specific version built using mkILGlobals.

e.g. win86 resources, as the exact contents of a .res or .obj file. Must be unlinked manually.

One module in the "current" assembly, either a main-module or an auxiliary module. The main module will have a manifest. An assembly is built by joining together a "main" module plus several auxiliary modules.

Represents a native resource to be written in an output file

Represents a native resource to be read from the PE file

Records whether the entrypoint resides in another module.

Records the types implemented by this assembly in auxiliary modules.

This is the public key used to sign this assembly (the signature itself is stored elsewhere: see the binary format, and may not have been written if delay signing is used). (member Name, member PublicKey) forms the full public name of the assembly.

This is the ID of the algorithm used for the hashes of auxiliary files in the assembly. These hashes are stored in the <c>ILModuleRef.Hash</c> fields of this assembly. These are not cryptographic hashes: they are simple file hashes. The algorithm is normally <c>0x00008004</c> indicating the SHA1 hash algorithm.

The main module of an assembly is a module plus some manifest information.

Table of resources in a module.

Read the bytes from a resource local to an assembly. Will fail for non-local resources.

"Manifest ILResources" are chunks of resource data, being one of: - the data section of the current module (byte[] of resource given directly). - in an external file in this assembly (offset given in the ILResourceLocation field). - as a resources in another assembly of the same name.

Represents a manifest resource in a different assembly

Represents a manifest resource in an associated file

Represents a manifest resource that can be read or written to a PE file

[Namespace.]Name

these are only found in the ILExportedTypesAndForwarders table in the manifest

"Classes Elsewhere" - classes in auxiliary modules. Manifests include declarations for all the classes in an assembly, regardless of which module they are in. The ".class extern" construct describes so-called exported types -- these are public classes defined in the auxiliary modules of this assembly, i.e. modules other than the manifest-carrying module. For example, if you have a two-module assembly (A.DLL and B.DLL), and the manifest resides in the A.DLL, then in the manifest all the public classes declared in B.DLL should be defined as exported types, i.e., as ".class extern". The public classes defined in A.DLL should not be defined as ".class extern" -- they are already available in the manifest-carrying module. The union of all public classes defined in the manifest-carrying module and all exported types defined there is the set of all classes exposed by this assembly. Thus, by analysing the metadata of the manifest-carrying module of an assembly, you can identify all the classes exposed by this assembly, and where to find them. Nested classes found in external modules should also be located in this table, suitably nested inside another "ILExportedTypeOrForwarder" definition. these are only found in the "Nested" field of ILExportedTypeOrForwarder objects

Realise the actual full typedef

Represents a prefix of information for ILTypeDef. The information is enough to perform name resolution for the F# compiler, probe attributes for ExtensionAttribute etc. This is key to the on-demand exploration of .NET metadata. This information has to be "Goldilocks" - not too much, not too little, just right.

Class or interface generated for COM interop.

Some classes are marked "HasSecurity" even if there are no permissions attached, e.g. if they use SuppressUnmanagedCodeSecurityAttribute

Functional update

Functional creation of a value, immediate

Functional creation of a value with lazy calculated data

Functional creation of a value, using delayed reading via a metadata index, for ilread.fs

Represents IL Type Definitions.

Calls to <c>FindByName</c> will result in all the ILPreTypeDefs being read.

Calls to <c>ExistsByName</c> will result in all the ILPreTypeDefs being read.

Get some information about the type defs, but do not force the read of the type defs themselves.

Tables of named type definitions.

Type Access.

Default Unicode encoding for P/Invoke within a type.

Indicate the initialization semantics of a type.

Type Layout information.

Method Impls

Table of properties in an IL type definition.

Functional update of the value

Functional creation of a value, immediate

Functional creation of a value, using delayed reading via a metadata index, for ilread.fs

Property definitions

Table of those events in a type definition.

Functional update of the value

Functional creation of a value, immediate

Functional creation of a value, using delayed reading via a metadata index, for ilread.fs

Event definitions.

Tables of fields. Logically equivalent to a list of fields but the table is kept in a form to allow efficient looking up fields by name.

The explicit offset in bytes when explicit layout is used.

Functional update of the value

Functional creation of a value, immediate

Functional creation of a value using delayed reading via a metadata index

Field definitions.

Tables of methods. Logically equivalent to a list of methods but the table is kept in a form optimized for looking up methods by name and arity.

Indicates an instance methods that is virtual or abstract or implements an interface slot.

The method is exported to unmanaged code using COM interop.

Indicates a static method.

Indicates this is an instance methods that is not virtual.

SafeHandle finalizer must be run.

Indicates a .ctor method.

Indicates a .cctor method.

Some methods are marked "HasSecurity" even if there are no permissions attached, e.g. if they use SuppressUnmanagedCodeSecurityAttribute

Functional update of the value

Functional creation of a value, immediate

Functional creation of a value, with delayed reading of some elements via a metadata index

IL Method definitions.

Do not use this

Do not use this

Indicates the type parameter allows ref struct, i.e. an anti constraint.

Indicates the type argument must have a public nullary constructor.

Indicates the type argument must be a value type, but not Nullable.

Indicates the type argument must be a reference type.

Variance of type parameters, only applicable to generic parameters for generic interfaces and delegates.

At most one is the parent type, the others are interface types.

Generic parameters. Formal generic parameter declarations may include the bounds, if any, on the generic parameter.

Represents a reference to a method declaration in a superclass or interface.

PInvoke attributes.

Represents the efficiency-oriented storage of ILSecurityDecls in another item.

Abstract type equivalent to ILSecurityDecl list - use helpers below to construct/destruct these.

Method return values.

Marshalling map for parameters. COM Interop only.

Method parameters and return values.

Already computed

Computed by ilread.fs based on metadata index

Represents the efficiency-oriented storage of ILAttributes in another item.

Attribute with args in decoded form.

Attribute with args encoded to a binary blob according to ECMA-335 II.21 and II.23.3. 'decodeILAttribData' is used to parse the byte[] blob to ILAttribElem's as best as possible.

Attribute instance constructor.

Decoded arguments. May be empty in encoded attribute form.

Custom attribute.

Named args: values and flags indicating if they are fields or properties.

Represents a custom attribute parameter of type 'string'. These may be null, in which case they are encoded in a special way as indicated by Ecma-335 Partition II.

Family - Indicates that the method is accessible only to members of this class and its derived classes. (protected)

FamilyOrAssembly - Indicates that the method is accessible to derived classes anywhere, as well as to any class _in the assembly_. (protected internal)

FamilyAndAssembly - Indicates that the method is accessible to members of this type and its derived types that are in _this assembly only_. (private protected)

Assembly - Indicates that the method is accessible to any class of this assembly. (internal)

Member Access

IL method bodies

Defines a set of opened namespace, type relevant to a code location. Emitted to the PortablePDB format.

Represents an 'open XYZ' opening a namespace

Represents an 'open type XYZ' opening a type

Defines an opened namespace, type relevant to a code location. Emitted to the PortablePDB format. Note the format supports additional variations on imported things that are not yet emitted in F#.

Local variables

optional idx of parameter giving size plus optional additive i.e. num elems

Native Types, for marshalling to the native C interface. These are taken directly from the ILASM syntax. Most of these are listed in the CLI ECMA-335 Spec (Partition II, 7.4).

Field Init

Indicates that a particular local variable has a particular source language name within a given set of ranges. This does not effect local variable numbering, which is global over the whole method.

The instruction set.

ILCode labels. In structured code each code label refers to a basic block somewhere in the code of the method.

Field specs. The data given for a ldfld, stfld etc. instruction.

Functional creation

The information at the callsite of a method

Formal identities of fields.

Functional creation

Formal identities of methods.

Actual generic parameters are always types.

The type being modified.

The class of the custom modifier.

True if modifier is "required".

Custom modifiers.

Reference a generic arg.

ILCode pointers.

Managed pointers.

Unmanaged pointers. Nb. the type is used by tools and for binding only, not by the verifier.

Reference types. Also may be used for parents of members even if for members in value types.

Unboxed types, including builtin types.

Array types

Used only in return and pointer types.

Which type is being referred to?

Where is the type, i.e. is it in this module, in another module in this assembly or in another assembly?

The name of the type. This also contains the namespace if Enclosing is empty.

The type instantiation if the type is generic, otherwise empty

The name of the type in the assembly using the '.' notation for nested types.

The list of enclosing type names for a nested type. If non-nil then the first of these also contains the namespace.

Create an ILTypeSpec.

Type specs and types.

Where is the type, i.e. is it in this module, in another module in this assembly or in another assembly?

The name of the type. This also contains the namespace if Enclosing is empty.

The name of the type in the assembly using the '.' notation for nested types.

The list of enclosing type names for a nested type. If non-nil then the first of these also contains the namespace.

The name of the type in the assembly using the '+' notation for nested types.

Create a ILTypeRef.

Type refs, i.e. references to types in some .NET assembly

Bounds for a single dimensional, zero based array

Lower-bound/size pairs

Array shapes. For most purposes the rank is the only thing that matters.

no 'this' pointer is passed

accepts an explicit 'this' pointer

accepts an implicit 'this' pointer

A reference to a type in the primary assembly

A reference to a type in another assembly

A reference to a type in a module in the same assembly

A reference to the type in the current module

CLI says this indicates if the assembly can be retargeted (at runtime) to be from a different publisher.

The fully qualified name of the assembly reference, e.g. mscorlib, Version=1.0.3705 etc.

Debug info. Values of type "source" can be attached at sequence points and some other locations.

Represents guids

Checks if an assembly resolution may represent a primary assembly that actually contains the definition of System.Object. Note that the chosen target primary assembly may not actually be the one that contains the definition of System.Object - it is just the one we are choosing to emit for.

Represents the target primary assembly

Find the full set of assemblies referenced by a module.

Get a version number from a CLR version string, e.g. 1.0.3705.0

Get a public key token from a public key.

Discriminating different important built-in types.

Strips ILType.Modified from the ILType.

This is a 'vendor neutral' way of referencing mscorlib.

Instantiate type variables that occur within types and other items.

Instantiate type variables that occur within types and other items.

Unscoping. Clears every scope information, use for looking up IL method references only.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Rescoping. The first argument indicates how to reference the original scope from the new scope.

Generate references to existing type definitions, method definitions etc. Useful for generating references, e.g. to a class we're processing Also used to reference type definitions that we've generated. [ILScopeRef] is normally ILScopeRef.Local, unless we've generated the ILTypeDef in an auxiliary module or are generating multiple assemblies at once.

Making modules.

Create table of types which is loaded/computed on-demand, and whose individual elements are also loaded/computed on-demand. Any call to tdefs.AsList will result in the laziness being forced. Operations can examine the custom attributes and name of each type in order to decide whether to proceed with examining the other details of the type. Note that individual type definitions may contain further delays in their method, field and other tables.

Making tables of custom attributes, etc.

The toplevel "class" for a module or assembly.

Given a delegate type definition which lies in a particular scope, make a reference to its constructor.

Derived functions for making some simple constructors

Injecting initialization code into a class. Add some code to the end of the .cctor for a type. Create a .cctor if one doesn't exist already.

Injecting code into existing code blocks. A branch will be added from the given instructions to the (unique) entry of the code, and the first instruction will be the new entry of the method. The instructions should be non-branching.

Make a type definition for a value type used to point to raw data. These are useful when generating array initialization code according to the ldtoken field valuetype '<PrivateImplementationDetails>'/'$$struct0x6000127-1' '<PrivateImplementationDetails>'::'$$method0x6000127-1' call void System.Runtime.CompilerServices.RuntimeHelpers::InitializeArray(class System.Array,valuetype System.RuntimeFieldHandle) idiom.

Make a type definition.

Make field definitions.

Make method definitions.

Make a formal generic parameters.

Derived functions for making return, parameter and local variable objects for use in method definitions.

Derived functions for making some common patterns of instructions.

Make some code that is a straight line sequence of instructions. The function will add a "return" if the last instruction is not an exiting instruction.

Making code.

Make custom attributes.

Make generalized versions of possibly-generic types, e.g. Given the ILTypeDef for List, return the type "List<T>".

Construct references to fields.

Construct references to constructors.

Construct references to static, non-generic methods.

Construct references to static methods.

Construct references to instance methods.

Construct references to instance methods.

Construct references to methods on a given type .

Make method references and specs.

Make types.

Make type specs.

Make type refs.

Generate simple references to assemblies and modules.

Not all custom attribute data can be decoded without binding types. In particular enums must be bound in order to discover the size of the underlying integer. The following assumes enums have size int32.

When writing a binary the fake "toplevel" type definition (called <Module>) must come first. This function puts it first, and creates it in the returned list as an empty typedef if it doesn't already exist.

Build the table of commonly used references given functions to find types in system assemblies primaryScopeRef is the primary assembly we are emitting equivPrimaryAssemblyRefs are ones regarded as equivalent

splitTypeNameRight is like splitILTypeName except the namespace is kept as a whole string, rather than split at dots.

The <c>splitILTypeName</c> utility helps you split a string representing a type name into the leading namespace elements (if any), the names of any nested types and the type name itself. This function memoizes and interns the splitting of the namespace portion of the type name.

Find the method definition corresponding to the given property or event operation. These are always in the same class as the property or event. This is useful especially if your code is not using the Ilbind API to bind references.

The "unlinked" view of .NET metadata and code. Central to the Abstract IL library

Various constants and utilities used when parsing the ILASM format for IL

This function gets the name of a token as a string

This function maps production indexes returned in syntax errors to strings representing the non terminal that would be produced by that production

This function maps integer indexes to symbolic token ids

This function maps tokens to integer indexes

Rule token

Printer for the abstract syntax.

Morph all type references throughout an entire module.

Morph each ILTypeRef inside an ILType

Morph each scope reference inside a type signature.

A set of "IL rewrites" ("morphs"). These map each sub-construct of particular ILTypeDefs. The morphing functions are passed some details about the context in which the item being morphed occurs, e.g. the module being morphed itself, the ILTypeDef (possibly nested) where the item occurs, the ILMethodDef (if any) where the item occurs. etc.

Functions associated with signing il assemblies which vary between supported implementations of the CLI Common Language Runtime, e.g. between the SSCLI, Mono and the Microsoft CLR.

Unmanaged resource file linker - for native resources (not managed ones). The function may be called twice, once with a zero-RVA and arbitrary buffer, and once with the real buffer. The size of the required buffer is returned.

Functions associated with writing binaries which vary between supported implementations of the CLI Common Language Runtime, e.g. between the SSCLI, Mono and the Microsoft CLR. The implementation of the functions can be found in ilsupp-*.fs

Compiler use only. Code and constants shared between binary reader/writer.

Represents a reader of the metadata of a .NET binary. May also give some values (e.g. IL code) from the PE file if it was provided.

A function to call to try to get an object that acts as a snapshot of the metadata section of a .NET binary, and from which we can read the metadata. Only used when metadataOnly=true.

Only open a metadata reader for the metadata portion of the .NET binary without keeping alive any data associated with the PE reader - IL code will not be available (mdBody in ILMethodDef will return NotAvailable) - Managed resources will be reported back as ILResourceLocation.LocalIn (as always) - Native resources will not be available (none will be returned) - Static data associated with fields will not be available

Used to implement a Binary file over native memory, used by Roslyn integration

Open a binary reader based on the given stream. This binary reader is not internally cached. The binary reader will own the given stream and the stream will be disposed when there are no references to the binary reader.

Open a binary reader based on the given bytes. This binary reader is not internally cached.

Open a binary reader, except first copy the entire contents of the binary into memory, close the file and ensure any subsequent reads happen from the in-memory store. PDB files may not be read with this option. Binary reader is internally cached.

The public API hook for changing the IL assembly reader, used by Resharper

Binary reader. Read a .NET binary and concert it to Abstract IL data structures. NOTE: - The metadata in the loaded modules will be relative to those modules, e.g. ILScopeRef.Local will mean "local to that module". You must use [rescopeILType] etc. if you want to include (i.e. copy) the metadata into your own module. - PDB (debug info) reading/folding: The PDB reader is invoked if you give a PDB path This indicates if you want to search for PDB files and have the reader fold them in. You cannot currently name the pdb file directly - you can only name the path. Giving "None" says "do not read the PDB file even if one exists". The debug info appears primarily as I_seqpoint annotations in the instruction streams. Unfortunately the PDB information does not, for example, tell you how to map back from a class definition to a source code line number - you will need to explicitly search for a sequence point in the code for one of the methods of the class. That is not particularly satisfactory, and it may be a good idea to build a small library which extracts the information you need.

MVID of the generated .NET module (used by MDB files to identify debug info)

Represents an 'open XYZ' opening a namespace

Represents an 'open type XYZ' opening a type

Defines the set of 'imports' - that is, opened namespaces, types etc. - at each code location Note the C# debug evaluation engine used for F# will give C# semantics to these. That in general is very close to F# semantics, except for things like union type.

the local index the name corresponds to

Check to see if a scope has a local with the same name as any of its children If so, do not emit 'scope' itself. Instead, 1. Emit a copy of 'scope' in each true gap, with all locals 2. Adjust each child scope to also contain the locals from 'scope', adding the text " (shadowed)" to the names of those with name conflicts.

28 is the size of the IMAGE_DEBUG_DIRECTORY in ntimage.h

Takes the output file name and returns debug file name.

The ILPdbWriter

Write a binary to an array of bytes suitable for dynamic loading.

Write a binary to the file system.

The IL Binary writer.

Write Abstract IL structures at runtime using Reflection.Emit

Debug info for generated code for classunions

Debug info for generated code for classunions.

Generate the helpers?

Are the representation helpers public?

Is the representation public?

Represents a discriminated union type prior to erasure

Represents a closure prior to erasure

IlxClosureApps - i.e. types being applied at a callsite.

Indicates if a static field being used to store an instance of this closure (because it has no free variables)

Get the constructor for the closure

Get the static field used to store an instance of this closure, if useStaticField is true

Represents a usage of a closure

Union references

Union alternative

The name used for the field in parameter or IL field position.

Union case field

ILX extensions to Abstract IL types and instructions F#

Compiler use only. Erase closures

Used to emit instructions (an interface to the IlxGen.fs code generator)

Emit the instruction sequence for a "switchdata" operation

Emit the instruction sequence for a "lddatatag" operation

Emit the instruction sequence for a "castdata" operation

Make the IL type for a union type alternative

Make the type definition for a union type

Make the instruction sequence for a "brisnotdata" operation

Make the instruction for a "stdata" operation

Make the instruction for a "lddataa" operation

Make the instruction for a "lddata" operation

Make the instruction sequence for a "isdata" operation

Make the instruction sequence for a "newdata" operation

Invert the compilation of the given value and return its current dynamic value and its compiled System.Type

Generate ILX code for an assembly fragment

Invert the compilation of the given value and set the storage of the value, even if it is immutable

Invert the compilation of the given value and clear the storage of the value

Register a fragment of the current assembly with the ILX code generator. If 'isIncrementalFragment' is true then the input is assumed to be a fragment 'typed' into FSI.EXE, otherwise the input is assumed to be the result of a '#load'

Register a set of referenced assemblies with the ILX code generator

Create an incremental ILX code generator for a single assembly

An incremental ILX code generator for a single assembly

Used to support the compilation-inversion operations "ClearGeneratedValue" and "LookupGeneratedValue"

The generated IL/ILX resources associated with F# quotations

The security attributes to attach to the assembly

The attributes for the assembly in F# form

The generated IL/ILX .NET module attributes

The generated IL/ILX assembly attributes

The generated IL/ILX type definitions

The results of the ILX compilation of one fragment of an assembly

When set to true, the IlxGen will delay generation of method bodies and generate them later in parallel (parallelized across files)

Indicates that, whenever possible, use callvirt instead of call

Suppress ToString emit

Indicates the code generated is an interactive 'it' expression. We generate a setter to allow clearing of the underlying storage, even though 'it' is not logically mutable

Indicates the code is being generated in FSI.EXE and is executed immediately after code generation This includes all interactively compiled code, including #load, definitions, and expressions

Is --multiemit enabled?

Indicates which backend we are generating code for

A flag to help test emit of debug information

Indicates if we are generating debug symbols or not

Indicates if local optimizations are active

If this is set, then the last module becomes the "main" module

Indicates if static array data should be emitted using static blobs

Indicates if we should workaround old reflection emit bugs

Indicates if we are generating filter blocks

Indicates how the generated IL code is ultimately emitted

Determine if an F#-declared value, method or function is compiled as a method.

Construct a new DependencyProvider

Construct a new DependencyProvider

Handle Assembly resolution

Signature for ResolutionProbe callback host implements this, it's job is to return a list of assembly paths to probe.

Construct a new NativeDllResolveHandler

Construct a new NativeDllResolveHandler

Signature for Native library resolution probe callback host implements this, it's job is to return a list of package roots to probe.

TryFindDependencyManagerInPath - given a #r "key:sometext" go and find a DependencyManager that satisfies the key

Fetch a dependencymanager that supports a specific key

Resolve reference for a list of package manager lines

Returns a formatted help messages for registered dependencymanagers for the host to present

Returns a formatted error message for the host to present

Clear the DependencyManager results caches

Construct a new DependencyProvider with managed and native resolution and specify caching

Construct a new DependencyProvider with managed and native resolution

Construct a new DependencyProvider with only native resolution and specify caching

Construct a new DependencyProvider with only native resolution

Construct a new DependencyProvider with no dynamic load handlers (only for compilation/analysis)

Provides DependencyManagement functions. The class incrementally collects IDependencyManagerProvider, indexed by key, and queries them. These are found and instantiated with respect to the compilerTools and outputDir provided each time the TryFindDependencyManagerByKey and TryFindDependencyManagerInPath are executed, which are assumed to be invariant over the lifetime of the DependencyProvider.

Todo describe this API

Name of the dependency manager

Key that identifies the types of dependencies that this DependencyManager operates on E.g nuget: indicates that this DM is for nuget packages paket: indicates that this DM is for paket scripts, which manage nuget packages, github source dependencies etc ...

The help messages for this dependency manager instance

Resolve the dependencies, for the given set of arguments, go find the .dll references, scripts and additional include values.

Clear the results cache

Wraps access to a DependencyManager implementation

Succeeded?

The resolution output log

The resolution error log (process stderr)

The source code file paths

The roots to package directories This points to the root of each located package. The layout of the package manager will be package manager specific. however, the dependency manager dll understands the nuget package layout and so if the package contains folders similar to the nuget layout then the dependency manager will be able to probe and resolve any native dependencies required by the nuget package. This path is also equivalent to #I @"c:\somepath\to\packages\1.1.1\ResolvedPackage"

The resolution paths - the full paths to selected resolved dll's. In scripts this is equivalent to #r @"c:\somepath\to\packages\ResolvedPackage\1.1.1\lib\netstandard2.0\ResolvedAssembly.dll"

The results of ResolveDependencies

Get a TcConfigProvider which will return only the exact TcConfig.

Get a TcConfigProvider which will continue to respect changes in the underlying TcConfigBuilder rather than delivering snapshots.

Represents a computation to return a TcConfig. Normally this is just a constant immutable TcConfig, but for F# Interactive it may be based on an underlying mutable TcConfigBuilder.

Prevent erasure of conditional attributes and methods so tooling is able analyse them.

If true, indicates all type checking and code generation is in the context of fsi.exe

if true - 'let mutable x = Span.Empty', the value 'x' is a stack referring span. Used for internal testing purposes only until we get true stack spans.

Set if the user has explicitly turned indentation-aware syntax on/off

Indicates if F# Interactive is using single-assembly emit via Reflection.Emit, where internals are available.

Check if the primary assembly is mscorlib

Take '#line' into account? Defaults to true

Indicates if the compilation will result in F# signature data resource in the generated binary

Indicates if the compilation will result in an F# optimization data resource in the generated binary

File system query based on TcConfig settings

File system query based on TcConfig settings

Get the loaded sources that exist and issue a warning for the ones that don't

Allow forking and subsequent modification of the TcConfig via a new TcConfigBuilder

Immutable TcConfig, modifications are made via a TcConfigBuilder

Take '#line' into account? Defaults to true

Prevent erasure of conditional attributes and methods so tooling is able analyse them.

if true - 'let mutable x = Span.Empty', the value 'x' is a stack referring span. Used for internal testing purposes only until we get true stack spans.

A function to call to try to get an object that acts as a snapshot of the metadata section of a .NET binary, and from which we can read the metadata. Only used when metadataOnly=true.

If true, indicates all type checking and code generation is in the context of fsi.exe

Sources added into the build with #load

Set if the user has explicitly turned indentation-aware syntax on/off

When using TypeCheckingMode.Graph, this flag determines whether the resolved file graph should be serialised as a Mermaid diagram into a file next to the output dll.

Some of the information dedicated to type-checking.

Parallel type-checking that uses automated file-to-file dependency detection to construct a file graph processed in parallel.

Default mode where all source files are processed sequentially in compilation order.

Determines the algorithm used for type-checking.

Includes F# signature and optimization metadata as resources in the emitting assembly. Only emits the assembly as a reference assembly.

Includes F# signature and optimization metadata as resources in the emitting assembly. Implementation assembly will still be emitted normally, but will emit the reference assembly with the specified output path.

Represents the file or string used for the --version flag

The name of the assembly file generated by the project

Get the logical timestamp that would be the timestamp of the assembly file generated by the project. For project references this is maximum of the timestamps of all dependent files. The project is not actually built, nor are any assemblies read, but the timestamps for each dependent file are read via the FileSystem. If the files don't exist, then a default timestamp is used. The operation returns None only if it is not possible to create an IncrementalBuilder for the project at all, e.g. if there are fatal errors in the options for the project.

Evaluate raw contents of the assembly file generated by the project. 'None' may be returned if an in-memory view of the contents is, for some reason, not available. In this case the on-disk view of the contents will be preferred.

Get the short name for this assembly

Get the identity of the assembly

Get the identities of the assemblies referenced by this assembly

Indicates if the assembly has an F# signature data attribute suitable for use with this version of F# tooling

Indicates if the assembly has any F# signature data attribute

The raw IL module definition in the assembly, if any. This is not present for cross-project references in the language service

Get the table of type forwarders in the assembly

Get the raw F# signature data in the assembly, if any

Get the raw F# optimization data in the assembly, if any

The raw list InternalsVisibleToAttribute attributes in the assembly

The raw list AutoOpenAttribute attributes in the assembly

Represents a reference to an F# assembly. May be backed by a real assembly on disk (read by Abstract IL), or a cross-project reference in FSharp.Compiler.Service.

Indicates whether experimental features should be enabled automatically

File suffixes where #light is the default

Script file suffixes

Implementation file suffixes

Signature file suffixes

Get the name used for FSharp.Core

The configuration of the compiler (TcConfig and TcConfigBuilder)

Try to resolve a referenced assembly based on TcConfig settings.

Try to find a provider-generated assembly

Try to find the given assembly reference by simple name. Used in magic assembly resolution. Effectively does implicit unification of assemblies by simple assembly name.

Try to find the given assembly reference.

Resolve a referenced assembly and report an error if the resolution fails.

Report unresolved references that also weren't consumed by any type providers.

This excludes any framework imports (which may be shared between multiple builds)

Represents a table of imported assemblies with their resolutions. Is a disposable object, but it is recommended not to explicitly call Dispose unless you absolutely know nothing will be using its contents after the disposal. Otherwise, simply allow the GC to collect this and it will properly call Dispose from the finalizer.

Tables of assembly resolutions

Represents a resolved imported assembly

Represents a resolved imported binary

Lazily populated ilAssemblyRef for this reference.

Whether or not this is an installed system assembly (for example, System.dll)

Create the tooltip text for the assembly reference

Path to the resolvedFile

The original reference to the assembly.

Process a group of #r in F# Interactive. Adds the reference to the tcImports and add the ccu to the type checking environment.

Encode the F# interface data into a set of IL attributes and resources

Determine if an IL resource attached to an F# assembly is an F# quotation data resource for reflected definitions

Determine if an IL resource attached to an F# assembly is an F# optimization data resource (data stream B)

Determine if an IL resource attached to an F# assembly is an F# optimization data resource

Determine if an IL resource attached to an F# assembly is an F# signature data resource (data stream B)

Determine if an IL resource attached to an F# assembly is an F# signature data resource

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

Contains logic to coordinate assembly resolution and manage the TcImports table of referenced assemblies.

Used internally and in LegacyHostedCompilerForTesting

Used internally and in LegacyHostedCompilerForTesting

Used internally and in LegacyHostedCompilerForTesting

Used internally and in LegacyHostedCompilerForTesting

Used internally and in LegacyHostedCompilerForTesting

Remove 'implicitIncludeDir' from a file name before output

Get a diagnostics logger that filters the reporting of warnings based on scoped pragma information

Write extra context information for a diagnostic

Output all of a diagnostic to a buffer, including range

Compute new severity according to the various diagnostics options

Format the core of the diagnostic as a string. Doesn't include the range information.

Eagerly format a PhasedDiagnostic return as a new PhasedDiagnostic requiring no formatting of types.

Get the number associated with a diagnostic

Get the location associated with a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

This exception is an old-style way of reporting a diagnostic

Contains logic to prepare, post-process, filter and emit compiler diagnostics

Callback that returns a previously calculated 'Result and updates 'State accordingly.

Helper class for mapping signature files to implementation files and vice versa.

A function for querying a Trie (the Trie is defined within the function's context)

A node was found with one or more files that contain relevant definitions required for type-checking.

A node was found but no file exposes data for the LongIdentifier in question.

This could happen if there is a single file with a top-level module `module A.B`, and we search for `A`. Although the `A` path exists in the Trie, it does not contain any relevant definitions (beyond itself).

No node was found for the path in the trie.

Result of querying a Trie Node.

File identifiers and its content extract for dependency resolution

A single identifier that could be the name of a module. Example use-case: `let x = nameof Foo` where `Foo` is a module.

Being explicit about nested modules allows for easier reasoning what namespaces (paths) are open. For example we can limit the scope of an `OpenStatement` to symbols defined inside the nested module.

Any identifier that has more than one piece (LongIdent or SynLongIdent) in it. The last part of the identifier should not be included.

The `open X.Y.Z` syntax.

Any toplevel namespace a file might have. In case a file has `module X.Y.Z`, then `X.Y` is considered to be the toplevel namespace

A significant construct found in the syntax tree of a file. This construct needs to be processed in order to deduce potential links to other files in the project.

Child nodes

Information about this node.

Zero or more files that define the LongIdentifier represented by this node.

A node in the Trie structure.

Files that use this namespace but don't contain any types.

Files that expose types that are part of this namespace.

There is a subtle difference between a module and namespace. A namespace does not necessarily expose a set of dependent files. Only when the namespace exposes types that could later be inferred. Children of a namespace don't automatically depend on each other for that reason

Combines the file name, index and parsed syntax tree of a file in a project.

Represents one or more identifiers in the syntax tree. For example, `[ "X"; "Y"; "Z" ]` in `open X.Y.Z`

Represents the string value of a single identifier in the syntax tree. For example, `"Hello"` in `module Hello`.

File name captured by ParsedInput.FileName.

The index of a file inside a project.

A Directed Acyclic Graph (DAG) of arbitrary nodes.

Create a simple Mermaid graph and save it under the path specified.

Create a simple Mermaid graph

Print the contents of the graph to the standard output.

Create a reverse of the graph.

Get a sub-graph of the graph containing only the nodes reachable from the given node.

Create a transitive closure of the graph in O(n^2) time (but parallelize it). The resulting graph contains edge A -> C iff the input graph contains a (directed) non-zero length path from A to C.

Get all nodes of the graph.

Build the graph.

Functions for operating on the Graph type.

Process all the files (in parallel) in a project to construct a Root TrieNode. When the project has signature files, the implementation counterparts will not be processed.

Extract the FileContentEntries from the ParsedInput of a file.

Construct an approximate* dependency graph for files within a project, based on their ASTs.

Maps the index of a signature file with the index of its implementation counterpart and vice versa. The files inside a project. A tuple consisting of a dictionary of FileIndex (alias for int) and a Trie *The constructed graph is a supergraph of the "necessary" file dependency graph, ie. if file A is necessary to type-check file B, the resulting graph will contain edge B -> A. The opposite is not true, ie. if file A is not necessary to type-check file B, the resulting graph *might* contain edge B -> A. This is because the graph resolution algorithm has limited capability as it is based on ASTs alone. The file order is used by the resolution algorithm to remove edges not allowed by the language. Ie. if file B precedes file A, the resulting graph will not contain edge B -> A. Hence this function cannot, as it stands, be used to help create a "reasonable" file ordering for an unordered set of files.

Process an open path (found in the ParsedInput) with a given FileContentQueryState.

This code is only used directly in unit tests.

Query a TrieNode to find a certain path.

This code is only used directly in unit tests.

Logic for constructing a file dependency graph for the purposes of parallel type-checking.

An already processed node in the graph, with its result available

Information about the node in a graph, describing its relation with other nodes.

A generic method to generate results for a graph of work items in parallel. Processes leaves first, and after each node has been processed, schedules any now unblocked dependents. Returns a list of results, one per item. Uses the Thread Pool to schedule work.

Graph of work items A function to generate results for a single item Cancellation token An alternative scheduling approach is to schedule N parallel tasks that process items from a BlockingCollection. My basic tests suggested it's faster, although confirming that would require more detailed testing.

Parallel processing of graph of work items with dependencies

Get the typing environment implied by the set of signature files and/or inferred signatures of implementation files checked so far

Get the typing environment implied by the set of implementation files checked so far

The inferred contents of the assembly, containing the signatures of all files.

The CcuThunk for the current assembly being checked

Represents the incremental type checking state for a set of inputs

State used to de-deduplicate module names along a list of file names

An artificial node that will add the earlier processed signature information to the TcEnvFromImpls. Dependents on this type of node will perceive that a file is known in both TcEnvFromSignatures and TcEnvFromImpls. Even though the actual implementation file was not type-checked.

A real physical file in the current project. This can be either an implementation or a signature file.

Auxiliary type for re-using signature information in TcEnvFromImpls. TcState has two typing environments: TcEnvFromSignatures && TcEnvFromImpls When type checking a file, depending on the type (implementation or signature), it will use one of these typing environments (TcEnv). Checking a file will populate the respective TcEnv. When a file has a dependencies, the information of the signature file in case a pair (implementation file backed by a signature) will suffice to type-check that file. Example: if `B.fs` has a dependency on `A`, the information of `A.fsi` is enough for `B.fs` to type-check, on condition that information is available in the TcEnvFromImpls. We introduce a special ArtificialImplFile node in the graph to satisfy this. `B.fs -> [ A.fsi ]` becomes `B.fs -> [ ArtificialImplFile A ]. The `ArtificialImplFile A` node will duplicate the signature information which A.fsi provided earlier. Processing a `ArtificialImplFile` node will add the information from the TcEnvFromSignatures to the TcEnvFromImpls. This means `A` will be known in both TcEnvs and therefor `B.fs` can be type-checked. By doing this, we can speed up the graph processing as type checking a signature file is less expensive than its implementation counterpart. When we need to actually type-check an implementation file backed by a signature, we cannot have the duplicate information of the signature file present in TcEnvFromImpls. Example `A.fs -> [ A.fsi ]`. An implementation file always depends on its signature. Type-checking `A.fs` will add the actual information to TcEnvFromImpls and we do not depend on the `ArtificialImplFile A` for `A.fs`. In order to deal correctly with the `ArtificialImplFile` logic, we need to transform the resolved graph to contain the additional pair nodes. After we have type-checked the graph, we exclude the ArtificialImplFile nodes as they are not actual physical files in our project.

Check a single input and finish the checking

Check a closed set of inputs

Finish the checking of a closed set of inputs

Finish the checking of multiple inputs

Check one input, returned as an Eventually computation

Returns partial type check result for skipped implementation files.

Get the initial type checking state for a set of inputs

Get the initial type checking environment including the loading of mscorlib/System.Core, FSharp.Core applying the InternalsVisibleTo in referenced assemblies and opening 'Checked' if requested.

Process collected directives

Parse multiple input files from disk

Parse one input file

Parse one input source text

Parse one input stream

Process all the #r, #I etc. in an input.

A general routine to process hash directives

Parse a single input (A signature file or implementation file)

Checks if a ParsedInput is using a module name that was already given and deduplicates the name if needed.

Contains logic to coordinate the parsing and checking of one or a group of files

Diagnostics seen while processing the compiler options implied root of closure

Diagnostics to show for root of closure (used by fsc.fs)

Diagnostics seen while processing resolutions

The original #load references, including those that didn't resolve

The list of all sources in the closure with inputs when available, with associated parse errors and warnings

The list of references that were not resolved during load closure.

Was the SDK directory override given?

Whether we're decided to use .NET Framework analysis for this script

The raw package manager lines in the script

The resolved package references along with the ranges of the #r positions in each file.

The resolved references along with the ranges of the #r positions in each file.

The source files along with the ranges of the #load positions in each file.

Analyze a script text and find the closure of its references. Used from FCS, when editing a script file.

Analyze a set of script files and find the closure of their references. The resulting references are then added to the given TcConfig. Used from fsi.fs and fsc.fs, for #load and command line.

Compute the load closure of a set of script files

The spec value describes the action of the argument, and whether it expects a following parameter.

Apply args to TcConfigBuilder and return new list of source files

Parse and process a set of compiler options

Compiler Option Parser

Writes the XmlDocSig property of each element (field, union case, etc) of the specified compilation unit to an XML document in a new text file.

Writes the XML document signature to the XmlDocSig property of each element (field, union case, etc) of the specified compilation unit. The XmlDocSig is the unique identifier of this XmlDoc in the generated Xml documentation file. The full format is described at https://learn.microsoft.com/dotnet/csharp/language-reference/language-specification/documentation-comments#id-string-format

Optional static linking of all DLLs that depend on the F# Library, plus other specified DLLs

Represents the configuration settings used to perform strong-name signing

Get the object used to perform strong-name signing

Validate the attributes and configuration settings used to perform strong-name signing

Get the SigningInfo for specific values(delaysign, tcConfig.publicsign, signer, container)

For unit testing

For unit testing

For unit testing

Put together all the pieces of information to create the overall IL ModuleDef for the generated assembly

Helpers for finding attributes

Called when 'too many errors' has occurred

Called when a diagnostic occurs

An diagnostic logger that reports errors up to some maximum, notifying the exiter when that maximum is reached Used only in LegacyHostedCompilerForTesting

The default DiagnosticsLoggerProvider implementation, reporting messages to the Console up to the maxerrors maximum

DiagnosticLoggers can be sensitive to the TcConfig flags. During the checking of the flags themselves we have to create temporary loggers, until the full configuration is available.

Read the parallelReferenceResolution flag from environment variables

The main (non-incremental) compilation entry point used by fsc.exe

Indicates that the XML for the documentation can be found in a .xml documentation file for the given DLL, using the given signature key

The text for documentation for in-memory references.

No documentation is available

Describe a comment as either a block of text or a file+signature reference into an intellidoc file.

Types whose static members and nested types is opened with this declaration.

The syntactic target of the declaration

Range of the open declaration.

Modules or namespaces which is opened with this declaration.

The syntactic target of the declaration

If it's `namespace Xxx.Yyy` declaration.

Scope in which open declaration is visible.

Represents open declaration in F# code.

Get the range of the name of the attribute

The named arguments for the attribute

Indicates if the attribute type is in an unresolved assembly

The arguments to the constructor for the attribute

The type of the attribute

Indicates if attribute matches the full name of the given type parameter

Format the attribute using the rules of the given display context

Represents a custom attribute attached to F# source code or a compiler .NET component

Get the type definition for a type

Indicates this is a named type in an unresolved assembly

Indicates if the type is a tuple type (reference or struct). The GenericArguments property returns the elements of the tuple type.

Indicates if the type is a struct tuple type. The GenericArguments property returns the elements of the tuple type.

Indicates this type is assumed to support the null value

Indicates if the type is a measure type.

Indicates if the type is a variable type, whether declared, generalized or an inference type parameter

Indicates if the type is a function type. The GenericArguments property returns the domain and range of the function type.

Indicates if the type is an anonymous record type. The GenericArguments property returns the type instantiation of the anonymous record type

Indicates this is an abbreviation for another type

Indicates if the type is constructed using a named entity, including array and byref types

Indicates this type is known to have a null annotation

Get the generic parameter data for a generic parameter type

Get the generic arguments for a tuple type, a function type or a type constructed using a named entity

Canonical form of the type with abbreviations, measures, and F# tuples and functions erased.

The fully qualified name of the type or module without strong assembly name.

Get the base type, if any, taking into account the instantiation of this type if it is an instantiation of a generic type.

Get the details of the anonymous record type.

Get all the interface implementations, by walking the type hierarchy, taking into account the instantiation of this type if it is an instantiation of a generic type.

Get the type for which this is an abbreviation

Strip any outer abbreviations from the type

Adjust the types in a group of curried parameters and return type by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Adjust the types in a group of curried parameters by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Adjust the types in a group of parameters by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Adjust the type in a single parameter by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Adjust a group of types by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Adjust the type by removing any occurrences of type inference variables, replacing them systematically with lower-case type inference variables such as <c>'a</c>.

Instantiate generic type parameters in a type

Format the type using the rules of the given display context

Format the type - with constraints - using the rules of the given display context

Format the type using the rules of the given display context

Format the type using the rules of the given display context, skipping type constraints

Internal use only. Create a ground type.

Get the type indicating signature of the active pattern

The names of the active pattern cases

The whole group name

Indicate this is a total active pattern

Try to get the entity in which the active pattern is declared

Represents all cases within an active pattern

XML documentation signature for the active pattern case, used for .xml file lookup for compiled code

Get the XML documentation for the entity

The name of the active pattern case

Index of the case in the pattern group

The group of active pattern cases this belongs to

The location of declaration of the active pattern case

A subtype of FSharpSymbol that represents a single case within an active pattern

The declared or inferred type of the parameter

The optional name of the parameter

Indicate this is a param array argument

Indicate this is an out argument

Indicate this is an optional argument

Indicate this is an in argument

The declaration location of the parameter

The declared attributes of the parameter

A subtype of FSharpSymbol that represents a parameter

XML documentation signature for the value, used for .xml file lookup for compiled code

Get the XML documentation for the entity

Get an associated setter method of the property

Get the logical name of the member

Indicates if this is a [<Literal>] value, and if so what value? (may be null)

Indicated if this is a value

Indicated if this is a value compiled to a method

Indicates if the member, function or value is in an unresolved assembly

Indicates if the property or getter method is part of a IsABC union case tester implied by a union case definition

Indicates if this is an F# type function

Indicates if this is a value that has been referenced

Indicates if this is a ref cell

Indicates if this is a setter method for a property, or a use of a property in setter mode

Indicates if this is a getter method for a property, or a use of a property in getter mode

Indicates if this is a property member

Indicates if this is an 'override', 'default' or an explicit implementation of an interface member

Indicates if this is a mutable value

Indicates if this is a module or member value

Indicates if this is a method member

Indicates if this is the "x" in "member x.M = ..."

Indicates if this is a member, including extension members?

Indicates if this is an instance member in compiled code. Explanatory note: some members such as IsNone and IsSome on types with UseNullAsTrueValue appear as instance members in F# code but are compiled as static members.

Indicates if this is an instance member, when seen from F#?

Indicates if this is an implicit constructor?

Indicated if this is a function

Indicates if this is an extension member?

Indicates if this is an explicit implementation of an interface member

Indicates if this is a remove method for an event

Indicates if this is an add method for an event

Indicates if this is an event member

Indicates if this is an abstract member?

Indicates if this is the "x" in "type C() as x = ..."

Indicates if this is a constructor.

Indicates if this is a compiler generated value

Indicates if this is "base" in "base.M(...)"

Indicates if this value or member is an F# active pattern

Get a result indicating if this is a must-inline value

Gets the list of the abstract slot signatures implemented by the member

Indicates if the value has a signature file counterpart

Indicates if this is a property and there exists an associated setter method

Indicates if this is a property and there exists an associated getter method

Get an associated getter method of the property

Get the typars of the member, function or value

Safe version of `FullType`.

Get the full type of the member, function or value when used as a first class value

Get an associated remove method of an event

Indicate if an event can be considered to be a property for the F# type system of type IEvent or IDelegateEvent. In this case ReturnParameter will have a type corresponding to the property type. For non-standard events, ReturnParameter will have a type corresponding to the delegate type.

Gets the event symbol implied by the use of a property, for the case where the property is actually an F#-declared CLIEvent. Uses of F#-declared events are considered to be properties as far as the language specification and this API are concerned.

Get an associated delegate type of an event

Get an associated add method of an event

Get the name as presented in F# error messages and documentation

Get the enclosing entity for the definition

Get the declaration location of the member, function or value

List of list of parameters, where each nested item represents a defined parameter

Typically, there is only one nested list. However, code such as 'f (a, b) (c, d)' contains two groups, each with two parameters. In that example, there is a list made up of two lists, each with a parameter.

Get the member name in compiled code

Custom attributes attached to the value. These contain references to other values (i.e. constructors in types). Mutable to fixup these value references after copying a collection of values.

Get the logical enclosing type, which for an extension member is type being extended

Get the logical enclosing entity, which for an extension member is type being extended

Get the accessibility information for the member, function or value

Full name with last part replaced with display name.

Full operator compiled name.

Check if this method has an entrypoint that accepts witness arguments and if so return the name of that entrypoint and information about the additional witness arguments

Get the signature text to include this Symbol into an existing signature file.

Format the type using the rules of the given display context

Gets the overloads for the current method.

Indicates whether to filter the overloads to match the number of parameters in the current symbol

Format the type using the rules of the given display context

A subtype of F# symbol that represents an F# method, property, event, function or value, including extension members.

Indicates the value is aggressively inlined by the .NET runtime

Indicates the value is never inlined

Indicates the value is optionally inlined

Indicates the value is always inlined in statically compiled code

Gets further information about a choice constraint

Gets further information about a member constraint

Indicates a constraint that a type is an unmanaged type

Indicates a constraint that a type has a 'null' value

Indicates a constraint that is a type is a simple choice between one of the given ground types. Used by printf format strings.

Indicates a constraint that a type has a parameterless constructor

Indicates a constraint that a type is a reference type

Indicates a constraint that a type doesn't support nullness

Indicates a constraint that a type is a non-Nullable value type

Indicates a constraint that a type has a member with the given signature

Indicates a constraint that a type supports F# generic equality

Indicates a constraint that a type is an enum with the given underlying

Indicates a constraint that a type is a delegate from the given tuple of args to the given return type

Indicates a default value for an inference type variable should it be neither generalized nor solved

Indicates a constraint that a type supports F# generic comparison

Indicates a constraint that a type is a subtype of the given type

An anti-constraint indicating that ref structs (e.g. Span<>) are allowed here

Gets further information about an enumeration constraint

Gets further information about a delegate constraint

Gets further information about a defaults-to constraint

Gets further information about a coerces-to constraint

Represents a constraint on a generic type parameter

Get the default type associated with the 'defaults to' constraint

Get the priority off the 'defaults to' constraint

Represents further information about a 'defaults to' constraint on a generic type parameter

Get the tupled argument type required by the constraint

Get the return type required by the constraint

Represents further information about a delegate constraint on a generic type parameter

Get the types that may be used to satisfy the constraint

Get the return type of the method required by the constraint

Get the name of the method required by the constraint

Indicates if the method required by the constraint must be static

Get the argument types of the method required by the constraint

Represents further information about a member constraint on a generic type parameter

Get the range of the construct

Get the name of the static parameter

Get the kind of the static parameter

Indicates if the static parameter is optional

Get the default value for the static parameter

Get the declaration location of the static parameter

A subtype of FSharpSymbol that represents a static parameter to an F# type provider

Get the XML documentation for the entity

Get the name of the generic parameter

Indicates if this is a statically resolved type variable

Indicates if this is a measure variable

Indicates if this is a compiler generated type parameter

Get the range of the generic parameter

Get the declared or inferred constraints for the type parameter

Get the declared attributes of the type parameter.

A subtype of FSharpSymbol that represents a generic parameter for an FSharpSymbol

Represents the rights of a compilation to access symbols

Get the XML documentation signature for .xml file lookup for the field, used for .xml file lookup for compiled code

Get the XML documentation for the entity

Get the attributes attached to generated property

Get the name of the field

Get the default initialization info, for static literals

Indicates if the field is declared volatile

Indicates if the record field is for a type in an unresolved assembly

Indicates if the field is declared in a union case

Indicates a static field

Indicates if the field name was generated by compiler (e.g. ItemN names in union cases and DataN in exceptions). This API returns true for source defined symbols only.

Indicates if the field is declared 'static'

Indicates if the field has a literal value

Indicates if the field declared is declared 'DefaultValue'

Indicates a compiler generated field, not visible to Intellisense or name resolution

Is this a field from an anonymous record type?

Get the type of the field, w.r.t. the generic parameters of the enclosing type constructor

Get the attributes attached to generated field

Returns the declaring union case symbol

Get the declaring entity of this field, if any. Fields from anonymous types do not have a declaring entity

Get the declaration location of the field

If the field is from an anonymous record type then get the details of the field including the index in the sorted array of fields

Indicates if the declared visibility of the field, not taking signatures into account

A subtype of FSharpSymbol that represents a record or union case field as seen by the F# language

The sorted labels of the anonymous type

Names of any enclosing types of the compiled form of the anonymous type (if the anonymous type was defined as a nested type)

The name of the compiled form of the anonymous type

The assembly where the compiled form of the anonymous type is defined

A subtype of FSharpSymbol that represents a record or union case field as seen by the F# language

Get the XML documentation signature for .xml file lookup for the union case, used for .xml file lookup for compiled code

Get the XML documentation for the entity

Get the type constructed by the case. Normally exactly the type of the enclosing type, sometimes an abbreviation of it

Get the name of the union case

Indicates if the union case is for a type in an unresolved assembly

Indicates if the union case has field definitions

Get the data carried by the case.

Get the declaring entity of the case

Get the range of the name of the case

Get the name of the case in generated IL code

Get the attributes for the case, attached to the generated static method to make instances of the case

Indicates if the declared visibility of the union constructor, not taking signatures into account

A subtype of FSharpSymbol that represents a union case as seen by the F# language

Get the name of the abstract slot

Get the generic arguments of the abstract slot

Get the generic arguments of the type defining the abstract slot

Get the declaring type of the abstract slot

Get the return type of the abstract slot

Get the arguments of the abstract slot

Represents the signature of an abstract slot of a class or interface

The declared or inferred type of the parameter

The optional name of the parameter

Indicate this is an out argument

Indicate this is an optional argument

Indicate this is an in argument

The declared attributes of the parameter

Represents a parameter in an abstract method of a class or interface

Get the return type of the delegate signature

Get the argument types of the delegate signature

Represents a delegate signature in an F# symbol

Get the XML documentation signature for the entity, used for .xml file lookup for compiled code

Get the XML documentation for the entity

Indicates if the type prefers the "tycon<a,b>" syntax for display etc.

Get the cases of a union type

Get the full name of the type or module if it is available

Get the static parameters for a provided type

Get the declared accessibility of the representation, not taking signatures into account

Get the fully qualified name of the type or module

Get the modules and types defined in a module, or the nested types of a type

Get the namespace containing the type or module, if any. Use 'None' for item not in a namespace.

Get the properties, events and methods of a type definitions, or the functions and values of a module

Get the name of the type or module, possibly with `n mangling

Indicates if the entity is a struct or enum

Indicates if the entity is in an unresolved assembly

Indicates if the entity is a 'fake' symbol related to a static instantiation of a type provider

Indicates if the entity is a generated provided type

Indicates if the entity is an erased provided type

Indicates if the entity is a provided type

Indicates if the entity is a type definition for a reference type where the implementation details are hidden by a signature

Indicates if the entity is a part of a namespace path

Indicates if the entity is a measure definition

Indicates if the entity is an interface type definition

Indicates if the entity is union type

Indicates if the entity is record type

Indicates if the entity is an F# module definition

Indicates an F# exception declaration

Indicates if the entity is a measure, type or exception abbreviation

Indicates if this is a reference to something in an F#-compiled assembly

Indicates if the entity is an enum type definition

Indicates if the entity is a delegate type definition

Indicates if the entity is a class type definition

Indicates if is the 'byref<_>' type definition used for byref types in F#-compiled assemblies

Check if the entity inherits from System.Attribute in its type hierarchy

Indicates if the entity is an array type

Indicates if the entity is an abstract class

Indicates that a module is compiled to a class with the given mangled name. The mangling is reversed during lookup

Indicates if the type is implemented through a mapping to IL assembly code. This is only true for types in FSharp.Core.dll

Get the generic parameters, possibly including unit-of-measure parameters

Get the generic parameters, possibly including unit-of-measure parameters

Get the full name of the type or module

Get the fields of a record, class, struct or enum from the perspective of the F# language. This includes static fields, the 'val' bindings in classes and structs, and the value definitions in enums. For classes, the list may include compiler generated fields implied by the use of primary constructors.

Indicates if the type is a delegate with the given Invoke signature

Get the name of the type or module as displayed in F# code

Get the enclosing entity for the definition

Get the declared interface implementations

Get the declaration location for the type constructor

Get the compiled name of the type or module, possibly with `n mangling. This is identical to LogicalName unless the CompiledName attribute is used.

The fully qualified name of the type or module without strong assembly name.

Get the base type, if any

Get the declared attributes for the type

Get the rank of an array type

Get all the interface implementations, by walking the type hierarchy

Get all compilation paths, taking `Module` suffixes into account.

Get all active pattern cases defined in all active patterns in the module.

Get the declared accessibility of the type

Get the path used to address the entity (e.g. "Namespace.Module1.NestedModule2"). Gives "global" for items not in a namespace.

Get the type abbreviated by an F# type abbreviation

Get the source text of the entity's signature to be used as metadata.

Safe version of `GetMembersFunctionsAndValues`.

Safe version of `FullName`.

Safe version of `DisplayName`.

Safe version of `CompiledName`.

Public nested entities (methods, functions, values, nested modules).

Instantiates FSharpType

A subtype of FSharpSymbol that represents a type definition or module as seen by the F# language

The (non-nested) module and type definitions in this signature

Get the declared attributes for the assembly. Only available when parsing an entire project.

Safe version of `Entities`.

Find entity using compiled names

Represents an inferred signature of part of an assembly as seen by the F# language

The simple name for the assembly

The qualified name of the assembly

Indicates if the assembly was generated by a type provider and is due for static linking

The file name for the assembly, if any

The contents of the this assembly

Represents an assembly as seen by the F# language

Get the signature location for the symbol if it was declared in an implementation

Get the implementation location for the symbol if it was declared in a signature that has an implementation

Get a textual representation of the full name of the symbol. The text returned for some symbols may not be a valid identifier path in F# code, but rather a human-readable representation of the symbol.

Gets the display name for the symbol where double backticks are not added for non-identifiers

Gets the display name for the symbol. Double backticks are added if the name is not a valid identifier. For FSharpParameter symbols without a name for the parameter, this returns "````"

Get the declaration location for the symbol

Get the attributes for the symbol, if any

Get the assembly declaring this symbol

Get the declared accessibility of the symbol, if any

Try to get an attribute matching the full name of the given type parameter

Return true if two symbols are effectively the same when referred to in F# source code text. This sees through signatures (a symbol in a signature will be considered effectively the same as the matching symbol in an implementation). In addition, other equivalences are applied when the same F# source text implies the same declaration name - for example, constructors are considered to be effectively the same symbol as the corresponding type definition. This is the relation used by GetUsesOfSymbol and GetUsesOfSymbolInFile.

Computes if the symbol is accessible for the given accessibility rights

Indicates if this symbol has an attribute matching the full name of the given type parameter

A hash compatible with the IsEffectivelySameAs relation

Represents a symbol in checked F# source code or a compiled .NET component. The subtype of the symbol may reveal further information and can be one of FSharpEntity, FSharpUnionCase FSharpField, FSharpGenericParameter, FSharpStaticParameter, FSharpMemberOrFunctionOrValue, FSharpParameter, or FSharpActivePatternCase.

Causes type signatures to be formatted with prefix-style generic parameters for a top level type while nested types inherit generic parameters style from the current `FSharpDisplayContext` instance, for example, `int list seq` becomes `seq<int list>`

Causes type signatures to be formatted with suffix-style generic parameters, for example `int list`

Causes type signatures to be formatted with prefix-style generic parameters, for example `list<int>`.

Represents the information needed to format types and other information in a style suitable for use in F# source text at a particular source location. Acquired via GetDisplayEnvAtLocationAlternate and similar methods. May be passed to the Format method on FSharpType and other methods.

Indicates the symbol has public accessibility.

Indicates the symbol has protected accessibility.

Indicates the symbol has private accessibility.

Indicates the symbol has internal accessibility.

The underlying Accessibility

Indicates the accessibility of a symbol, as seen by the F# language

The signature of the implemented abstract slot

The generic parameters of the method

The parameters of the method

The expression that forms the body of the method

Represents a checked method in an object expression, as seen by the F# language.

The type of the expression

The range of the expression

The immediate sub-expressions of the expression.

Represents a checked and reduced expression, as seen by the F# language. The active patterns in 'FSharp.Compiler.SourceCodeServices' can be used to analyze information about the expression. Pattern matching is reduced to decision trees and conditional tests. Some other constructs may be represented in reduced form.

Represents the declaration of a static initialization action

Represents the declaration of a member, function or value, including the parameters and body of the member

Represents the declaration of a type

Represents a declaration in an implementation file, as seen by the F# language

The qualified name acts to fully-qualify module specifications and implementations

Indicates if the implementation file is a script

Indicates if the implementation file has an explicit entry point

Get the system path of the implementation file

Get the declarations that make up this implementation file

Represents the definitional contents of a single file or fragment in an assembly, as seen by the F# language

The contents of the implementation files in the assembly

Represents the definitional contents of an assembly, as seen by the F# language

Indicates a witness argument index from the witness arguments supplied to the enclosing method

Matches expressions for an unresolved call to a trait

Matches object expressions, returning the base type, the base call, the overrides and the interface implementations

Matches expressions which set a field in a .NET type

Matches expressions which fetch a field from a .NET type

Matches expressions which are IL assembly code

Matches expressions which create an instance of a delegate type

Matches try/with expressions

Matches try/finally expressions

Matches while loops

Matches fast-integer loops (up or down)

Matches debug points at leaf expressions in control flow

Matches sequential expressions

Matches expressions which take the address of a location

Matches constant expressions, including signed and unsigned integers, strings, characters, booleans, arrays of bytes and arrays of unit16.

Matches default-value expressions, including null expressions

Matches expressions which set the contents of a mutable variable

Matches expressions which set the contents of an address

Matches expressions which test the runtime type of a value

Matches array expressions

Matches expressions which coerce the type of a value

Matches expressions which get a value from a tuple

Matches tuple expressions

Matches expressions which test if an expression corresponds to a particular union case

Matches expressions which gets the tag for a union case

Matches expressions which set a field from a union case (only used in FSharp.Core itself)

Matches expressions which get a field from a union case

Matches expressions which create an object corresponding to a union case

Matches expressions which set a field in a record or class

Matches expressions which get a field from a record or class

Matches expressions getting a field from an anonymous record. The integer represents the index into the sorted fields of the anonymous record.

Matches anonymous record expressions

Matches record expressions

Matches expressions which are let-rec definitions

Matches expressions which are quotation literals

Matches expressions which are uses of the 'base' value

Matches expressions which are uses of the 'this' value

Matches expressions which are calls to object constructors

Like Call but also indicates witness arguments

Matches expressions which are calls to members or module-defined functions. When calling curried functions and members the arguments are collapsed to a single collection of arguments, as done in the compiled version of these.

Matches expressions which are let definitions

Matches expressions which are conditionals

Matches expressions which are lambda abstractions

Special expressions at the end of a conditional decision structure in the decision expression node of a DecisionTree . The given expressions are passed as values to the decision tree target.

Matches expressions with a decision expression, each branch of which ends in DecisionTreeSuccess passing control and values to one of the targets.

Matches expressions which are type abstractions

Matches expressions which are the application of function values

Matches expressions which are uses of values

A collection of active patterns to analyze expressions

Returns (originalEntity, abbreviatedEntity, abbreviatedType)

Patterns over FSharpSymbol and derivatives.

Get the captured diagnostics

Create the diagnostics logger

An error logger that captures errors, filtering them according to warning levels etc.

Gets the subcategory for the diagnostic

Gets the start line for the diagnostic

Gets the start column for the diagnostic

Gets the start position for the diagnostic

Gets the severity for the diagnostic

Gets the range for the diagnostic

Gets the message for the diagnostic

Gets the file name for the diagnostic

Gets the contextually relevant data to each particular diagnostic for things like code fixes

Gets the full error number text e.g "FS0031"

Gets the number prefix for the diagnostic, usually "FS" but may differ for analyzers

Gets the number for the diagnostic

Gets the end line for the diagnostic

Gets the end column for the diagnostic

Gets the end position for the diagnostic

Newlines are recognized and replaced with (ASCII 29, the 'group separator'), which is decoded by the IDE with 'NewlineifyErrorString' back into newlines, so that multi-line errors can be displayed in QuickInfo

Newlines are recognized and replaced with (ASCII 29, the 'group separator'), which is decoded by the IDE with 'NewlineifyErrorString' back into newlines, so that multi-line errors can be displayed in QuickInfo

Creates a diagnostic, e.g. for reporting from an analyzer

Represents a diagnostic produced by the F# compiler

Supported kinds of diagnostics by this service.

For activities following the dotnet distributed tracing concept https://learn.microsoft.com/dotnet/core/diagnostics/distributed-tracing-concepts?source=recommendations

For activities following the dotnet distributed tracing concept https://learn.microsoft.com/dotnet/core/diagnostics/distributed-tracing-concepts?source=recommendations

Range of the signature type identifier.

Range of the implementation type identifier.

Argument identifier range within the signature file

Argument name in the signature file

Argument identifier range within the implementation file

Argument name in the implementation file

Additional data for 'argument names in the signature and implementation do not match' diagnostic

Represents F# value in signature file

Represents F# value in implementation file

Additional data for diagnostics about a value whose declarations differ in signature and implementation

Represents F# field in the signature file

Represents F# field in the implementation file

Additional data for diagnostics about a field whose declarations differ in signature and implementation

Represents F# type of the expression

Additional data for 'This expression is a function value, i.e. is missing arguments' diagnostic

Represents the expected F# type in the current context

Represents the information needed to format types

The context in which the type mismatch was found

Represents the actual F# type in the current context

Additional data for type-mismatch-like (usually with ErrorNumber = 1) diagnostics

Represents the URL format of the diagnostic

Represents the DiagnosticId of the diagnostic

Additional data for diagnostics about experimental attributes.

Represents the URL format of the diagnostic

Represents the DiagnosticId of the diagnostic

Additional data for diagnostics about obsolete attributes.

Contextually-relevant data to each particular diagnostic

The type equation comes from a sequence expression

The type equation comes from a pattern match guard

The type equation comes from the return type of a pattern match clause (not the first clause)

The type equation comes from a downcast where an upcast could be used

The type equation comes from a runtime type test

The type equation comes from a yield in a computation expression

The type equation comes from a return in a computation expression

The type equation comes from a list or array constructor

The type equation comes from the verification of a tuple in record fields

The type equation comes from the verification of record fields

The type equation comes from a type check of the result of an else branch

The type equation comes from an omitted else branch

The type equation comes from an IF expression

No context was given

Information about the context of a type equation in type-mismatch-like diagnostic

Given a set of names, uses and a string representing an unresolved identifier, returns a list of suggested names if there are any feasible candidates.

Given a DiagnosticKind, returns the string representing the error message for that diagnostic.

Exposes compiler diagnostic error messages.

Create a tokenizer for a line of this source file

Create a tokenizer for a line of this source file using a buffer filler

Create a tokenizer for a source file.

Tokenizer for a source file. Holds some expensive-to-compute resources at the scope of the file.

Scan one token from the line

Get a default lexer state for a color state. NOTE: This may result in an inaccurate lexer state not taking into account things such as the #if/#endif and string interpolation context within the file

Get the color state from the lexer state

Object to tokenize a line of F# source code, starting with the given lexState. The lexState should be FSharpTokenizerLexState.Initial for the first line of text. Returns an array of ranges of the text and two enumerations categorizing the tokens and characters covered by that range, i.e. FSharpTokenColorKind and FSharpTokenCharKind. The enumerations are somewhat adhoc but useful enough to give good colorization options to the user in an IDE. A new lexState is also returned. An IDE-plugin should in general cache the lexState values for each line of the edited code.

The full length consumed by this match, including delayed tokens (which can be ignored in naive lexers)

Provides additional information about the token

The tag is an integer identifier for the token

Actions taken when the token is typed

Gives an indication of the class to assign to the token an IDE

Right column of the token.

Left column of the token.

Information about a particular token from the tokenizer

Gives an indication of the class to assign to the characters of the token an IDE

Gives an indication of what should happen when the token is typed in an IDE

Gives an indication of the color class to assign to the token an IDE

Represents stable information for the state of the lexing engine at the end of a line

Represents encoded information for the end-of-line continuation of lexing

All the keywords in the F# language

A lookup from keywords to their descriptions

Keywords paired with their descriptions. Used in completion and quick info.

Add backticks if the identifier is a keyword. Remove backticks if present and not needed.

Indicates the token is keyword `new`

Indicates the token is keyword `with` in #light

Indicates the token is keyword `with`

Indicates the token is keyword `try`

Indicates the token is keyword `class`

Indicates the token is keyword `struct`

Indicates the token is keyword `else`

Indicates the token is keyword `then`

Indicates the token is keyword `function`

Indicates the token is keyword `do`

Indicates the token is keyword `begin`

Indicates the token is a line comment

Indicates the token is a comment

Indicates the token is a whitespace

Indicates the token is a `"`

Indicates the token is a `<-`

Indicates the token is a `->`

Indicates the token is a `||`

Indicates the token is a `:=`

Indicates the token is a `~`

Indicates the token is a `@@`

Indicates the token is a `::`

Indicates the token is a `|`

Indicates the token is a `|`

Indicates the token is a `:?`

Indicates the token is a `:?>`

Indicates the token is a `:>`

Indicates the token is a `_`

Indicates the token is a `..`

Indicates the token is a `..^`

Indicates the token is a `..`

Indicates the token is a `..`

Indicates the token is a `.`

Indicates the token is a `,`

Indicates the token is a `;`

Indicates the token is a `=`

Indicates the token is a `:`

Indicates the token is a `?`

Indicates the token is a `^`

Indicates the token is a `%`

Indicates the token is a `%`

Indicates the token is a `*`

Indicates the token is a `-`

Indicates the token is a `+` or `-`

Indicates the token is a `|]`

Indicates the token is a `[|`

Indicates the token is a `>`

Indicates the token is a `<`

Indicates the token is a `>]`

Indicates the token is a `[<`

Indicates the token is a `}`

Indicates the token is a `{`

Indicates the token is a `]`

Indicates the token is a `[`

Indicates the token is a `)`

Indicates the token is a `(`

Indicates the token is a part of an interpolated string

Indicates the token is a part of an interpolated string

Indicates the token is a part of an interpolated string

Indicates the token is a part of an interpolated string

Indicates the token is a string (synonym for FSharpTokenTag.String)

Indicates the token is an identifier (synonym for FSharpTokenTag.Identifier)

Indicates the token is a string

Indicates the token is an identifier

Some of the values in the field FSharpTokenInfo.Tag

A parsed signature file

A parsed implementation file

Gets the syntax range of this construct

Gets the qualified name used to help match signature and implementation files

Gets a set of all identifiers used in this parsed input. Only populated if captureIdentifiersWhenParsing option was used.

Gets the file name for the parsed input

Represents the syntax tree for a parsed implementation or signature file

Represents the full syntax tree, file name and other parsing information for a signature file

Represents the full syntax tree, file name and other parsing information for an implementation file

The name of the file

Gets the syntax range of this construct

The identifier for the name of the file

Represents a qualifying name for anonymous module specifications and implementations,

Represents a parsed signature file made up of fragments

Represents a parsed implementation file made up of fragments

Represents a parsed syntax tree for an F# Interactive interaction

A signature file namespace fragment

A signature file which is a module, 'module N'

A signature file which is an anonymous module, e.g. the signature file for the final file in an application

Represents the syntax tree for the contents of a parsed signature file

An implementation file fragment which declares a namespace fragment

An implementation file is a named module definition, 'module N'

An implementation file which is an anonymous module definition, e.g. a script

Represents the syntax tree for the contents of a parsed implementation file

Represents a parsed hash directive

Gets the syntax range of this construct

Represents a parsed hash directive argument

Gets the syntax range of this construct

Represents the definition of a module or namespace in a signature file

Gets the syntax range of this construct

Represents the definition of a module or namespace

A namespace is declared 'global'

A namespace is explicitly declared

A module is anonymously named, e.g. a script

A module is explicitly named 'module N'

Indicates if this is a module definition

Represents the kind of a module or namespace definition

A namespace fragment within a namespace in a signature file

A hash directive within a module or namespace in a signature file

An 'open' definition within a module or namespace in a signature file

An exception definition within a module or namespace in a signature file

A set of one or more type definitions within a module or namespace in a signature file

A 'val' definition within a module or namespace in a signature file, corresponding to a 'let' definition in the implementation

A nested module definition within a module or namespace in a signature file

A module abbreviation definition within a module or namespace in a signature file

Gets the syntax range of this construct

Represents a definition within a module or namespace in a signature file

Represents the right hand side of an exception definition in a signature file

A 'open type' declaration

A 'open' declaration

Gets the syntax range of this construct

Represents the target of the open declaration

A namespace fragment within a module

A hash directive within a module

An attribute definition within a module, for assembly and .NET module attributes

An 'open' definition within a module

An 'exception' definition within a module

A type definition group ('type T1 ... and T2 ...') or a single 'type' definition within a module.

Consecutive 'type' keywords (e.g. type T1 ... type T2 ...) are represented individually, with separate Types syntax tree nodes for each. Only the 'and' keyword causes multiple types to be aggregated into a single Types node.

An 'expr' within a module.

A 'let' definition within a module

A nested module definition 'module X = ...'

A module abbreviation definition 'module X = A.B.C'

Gets the syntax range of this construct

Represents a definition within a module

An auto-property definition, F# syntax: 'member val X = expr'

A nested type definition, a feature that is not implemented

A 'val' definition within a class

An 'inherit' definition within a class

An interface implementation definition within a class

An abstract slot definition within a class or interface

A 'let' definition within a class

An implicit inherit definition, 'inherit <typ>(args...) as base'

An implicit constructor definition

A 'member' definition with get/set accessors within a type

A 'member' definition within a type

An 'open' definition within a type

Gets the syntax range of this construct

Represents a definition element within a type definition, e.g. 'member ... '

Gets the syntax range of this construct

Represents a type or exception declaration 'type C = ... ' plus any additional member definitions for the type

An exception definition

A simple type definition (record, union, abbreviation)

An object model type definition (class or interface)

Gets the syntax range of this construct

Represents the right hand side of a type or exception declaration 'type C = ... ' plus any additional member definitions for the type

Gets the syntax range of this construct

Represents the right hand side of an exception declaration 'exception E = ... ' plus any member definitions for the exception

Gets the syntax range of this construct

Represents the right hand side of an exception declaration 'exception E = ... '

Represents the syntactic elements associated with the "return" of a function or method.

Represents the names and other metadata for the type parameters for a member or function

Represents the argument names and other metadata for a parameter for a member or function

SynValInfo(curriedArgInfos, returnInfo)

The argument names and other metadata for a member or function

Represents the syntax tree for a 'val' definition in an abstract slot or a signature file

Represents one or two access modifier(s) in a property signature

Gets the syntax range of this construct

Represents the syntax tree associated with the name of a type definition or module in signature or implementation. This includes the name, attributes, type parameters, constraints, documentation and accessibility for a type definition or module. For modules, entries such as the type parameters are always empty.

Gets the syntax range of this construct

Represents the syntax tree for a field declaration in a record or class

The information for a type definition in a signature

Gets the syntax range of this construct

Represents the syntax tree for a type definition in a signature

Indicates the right right-hand-side is a record, union or other simple type.

Indicates the right right-hand-side is a class, struct, interface or other object-model type

Gets the syntax range of this construct

Represents the syntax tree for the right-hand-side of a type definition in a signature. Note: in practice, using a discriminated union to make a distinction between "simple" types and "object oriented" types is not particularly useful.

Full type spec given by 'UnionCase: ty1 * tyN -> rty'. Only used in FSharp.Core, otherwise a warning.

Normal style declaration

Represents the syntax tree for the right-hand-side of union definition, excluding members, in either a signature or implementation.

Gets the syntax range of this construct

Represents the syntax tree for one case in a union definition.

Gets the syntax range of this construct

Represents the syntax tree for one case in an enum definition.

An exception definition, "exception E = ..."

An abstract definition, "type X"

A type abbreviation, "type X = A.B.C"

A type defined by using an IL assembly representation. Only used in FSharp.Core. F# syntax: "type X = (# "..."#)

An object oriented type definition. This is not a parse-tree form, but represents the core type representation which the type checker splits out from the "ObjectModel" cases of type definitions.

A record type definition, type X = { A: int; B: int }

An enum type definition, type X = A = 1 | B = 2

A union type definition, type X = A | B

Gets the syntax range of this construct

Represents the syntax tree for the core of a simple type definition, in either signature or implementation.

Represents the kind of a type definition whether explicit or inferred

A nested type definition in a signature file (an unimplemented feature)

A 'val' definition in a type in a signature file

An 'inherit' definition in a type in a signature file

An interface definition in a type in a signature file

A member definition in a type in a signature file

Gets the syntax range of this construct

Represents the syntax tree for a member signature (used in signature files, abstract member declarations and member constraints)

An artificial member kind used prior to the point where a get/set property is split into two distinct members.

The member kind is property setter

The member kind is property getter

The member kind is not yet determined

The member is a object model constructor

The member is a class initializer

Note the member kind is actually computed partially by a syntax tree transformation in tc.fs

The kind of the member

The member was generated by the compiler

The member is 'final'

The member is an 'override' or explicit interface implementation

The member is a dispatch slot

The member is an instance member (non-static)

Represents the flags for a 'member' declaration

Represents the return information in a binding for a 'let' or 'member' declaration

Represents a binding for a 'let' or 'member' declaration

Represents extra information about the declaration of a value

The syntax range of the list of attributes

The list of attributes

List of attributes enclosed in [< ... >].

The syntax range of the attribute

Is this attribute being applied to a property getter or setter?

Target specifier, e.g. "assembly", "module", etc.

The argument of the attribute, perhaps a tuple

The name of the type for the attribute

Represents an attribute

Gets the syntax range of part of this construct

Gets the syntax range of this construct

Is a pattern used in a true match clause e.g. | pat -> expr

Represents a clause in a 'match' expression

Represents a set of bindings that implement an interface

A pattern arising from a parse error

Used internally in the type checker

&lt;@ expr @&gt;, used for active pattern arguments

A type test pattern ':? type '

'?id' -- for optional argument names

The 'null' pattern

A record pattern

An array or a list as a pattern

A parenthesized pattern

A tuple pattern

A long identifier pattern possibly with argument patterns

A conjunctive pattern 'pat1 as pat2'

A conjunctive pattern 'pat1 & pat2'

A conjunctive pattern 'pat1 :: pat2'

A disjunctive pattern 'pat1 | pat2'

An attributed pattern, used in argument or declaration position

A typed pattern 'pat : type'

A name pattern 'ident'

A wildcard '_' in a pattern

A constant in a pattern

Gets the syntax range of this construct

Represents a syntax tree for an F# pattern

Represents a syntax tree for arguments patterns

The separator trivia that follows this pair (e.g., semicolon or block separator), if any.

The pattern associated with the named field.

The overall range of this name–pattern pair. Starts with `fieldName`'s range and ends with `pat`s range.

The range of the equals sign in `name = pattern`, if present.

The identifier of the named field/parameter.

Gets the overall range of this name–pattern pair, if available.

Gets the pattern associated with the named field.

Gets the identifier of the named field/parameter.

Represents a single named argument pattern a pair of the form `name = pattern`.

Represents a simple set of variable bindings a, (a, b) or (a: Type, b: Type) at a lambda, function definition or other binding point, after the elimination of pattern matching from the construct, e.g. after changing a "function pat1 -> rule1 | ..." to a "fun v -> match v with ..."

A static optimization conditional that activates for a struct

A static optimization conditional that activates for a particular type instantiation

Represents a syntax tree for a static optimization constraint in the F# core library

We have decided to use an alternative name in the pattern and related expression

We have not decided to use an alternative name in the pattern and related expression

Represents the alternative identifier for a simple pattern

An attributed simple pattern

A type annotated simple pattern

Indicates a simple pattern variable. altNameRefCell: Normally 'None' except for some compiler-generated variables in desugaring pattern matching. Pattern processing sets this reference for hidden variable introduced by desugaring pattern matching in arguments. The info indicates an alternative (compiler generated) identifier to be used because the name of the identifier is already bound. isCompilerGenerated: true if a compiler generated name isThisVal: true if 'this' variable in member isOptional: true if a '?' is in front of the name

Represents a syntax tree for simple F# patterns

F# syntax: f?x

Debug points arising from computation expressions

F# syntax: interpolated string, e.g. "abc{x}" or "abc{x,3}" or "abc{x:N4}" Note the string ranges include the quotes, verbatim markers, dollar sign and braces

'use x = fixed expr'

Inserted for error recovery when there is "expr." and missing tokens or error recovery after the dot

Inserted for error recovery

Inserted for error recovery

Only used in FSharp.Core

Only used in FSharp.Core

Only used in FSharp.Core

Only used in FSharp.Core

F# syntax: 'while! ... do ...'

F# syntax: do! expr Computation expressions only

F# syntax: match! expr with pat1 -> expr | ... | patN -> exprN

isUse: true for 'use' and 'use!' bindings, false for 'let' and 'let!'

F# syntax: let pat = expr in expr F# syntax: let f pat1 .. patN = expr in expr F# syntax: let rec f pat1 .. patN = expr in expr F# syntax: use pat = expr in expr F# syntax: let! pat = expr in expr F# syntax: use! pat = expr in expr F# syntax: let! pat = expr and! ... and! ... and! pat = expr in expr

F# syntax: yield! expr F# syntax: return! expr Computation expressions only

F# syntax: yield expr F# syntax: return expr Computation expressions only

Used internally during type checking for translating computation expressions.

Used in parser error recovery and internally during type checking for translating computation expressions.

F# syntax: ... in ... Computation expressions only, based on JOIN_IN token from lex filter

F# syntax: ((type1 or ... or typeN): (member-dig) expr)

F# syntax: &expr, &&expr

F# syntax: null

F# syntax: downcast expr

F# syntax: upcast expr

F# syntax: expr :?> type

F# syntax: expr :> type

F# syntax: expr :? type

F# syntax: expr.Items (e1) <- e2, rarely used named-property-setter notation, e.g. (stringExpr).Chars(3) <- 'a'

F# syntax: Type.Items(e1) <- e2, rarely used named-property-setter notation, e.g. Foo.Bar.Chars(3) <- 'a'

F# syntax: expr.[expr, ..., expr] <- expr

F# syntax: expr.[expr, ..., expr]

F# syntax: expr <- expr

F# syntax: expr.ident...ident <- expr

F# syntax: _.ident.ident

F# syntax: expr.ident.ident

F# syntax: ident.ident...ident <- expr

F# syntax: ident.ident...ident isOptional: true if preceded by a '?' for an optional named parameter altNameRefCell: Normally 'None' except for some compiler-generated variables in desugaring pattern matching. See SynSimplePat.Id

F# syntax: ident Optimized representation for SynExpr.LongIdent (false, [id], id.idRange)

F# syntax: 'T (for 'T.ident).

F# syntax: if expr then expr F# syntax: if expr then expr else expr

F# syntax: expr; expr isTrueSeq: false indicates "let v = a in b; v"

F# syntax: lazy expr

F# syntax: try expr finally expr

F# syntax: try expr with pat -> expr

F# syntax: expr<type1, ..., typeN>

F# syntax: f x flag: indicates if the application is syntactically atomic, e.g. f.[1] is atomic, but 'f x' is not isInfix is true for the first app of an infix operator, e.g. 1+2 becomes App(App(+, 1), 2), where the inner node is marked isInfix

F# syntax: assert expr

F# syntax: do expr

F# syntax: match expr with pat1 -> expr | ... | patN -> exprN

F# syntax: function pat1 -> expr | ... | patN -> exprN

First bool indicates if lambda originates from a method. Patterns here are always "simple" Second bool indicates if this is a "later" part of an iterated sequence of lambdas parsedData keeps original parsed patterns and expression, prior to transforming to "simple" patterns and iterated lambdas F# syntax: fun pat -> expr

F# syntax: { expr }

F# syntax: ^expr, used for from-end-of-collection indexing and ^T.Operation

F# syntax: expr.. F# syntax: ..expr F# syntax: expr..expr F# syntax: * A two-element range indexer argument a..b, a.., ..b. Also used to represent a range in a list, array or sequence expression.

F# syntax: [ expr ], [| expr |]

F# syntax: 'for ... in ... do ...'

F# syntax: 'for i = ... to ... do ...'

F# syntax: 'while ... do ...'

F# syntax: { new ... with ... }

F# syntax: new C(...) The flag is true if known to be 'family' ('protected') scope

F# syntax: { f1=e1; ...; fn=en } inherit includes location of separator (for tooling) copyOpt contains range of the following WITH part (for tooling) every field includes range of separator after the field (for tooling)

F# syntax: [ e1; ...; en ], [| e1; ...; en |]

F# syntax: {| id1=e1; ...; idN=eN |} F# syntax: struct {| id1=e1; ...; idN=eN |}

F# syntax: e1, ..., eN

F# syntax: expr: type

F# syntax: 1, 1.3, () etc.

F# syntax: <@ expr @>, <@@ expr @@> Quote(operator, isRaw, quotedSynExpr, isFromQueryExpression, m)

F# syntax: (expr) Parenthesized expressions. Kept in AST to distinguish A.M((x, y)) from A.M(x, y), among other things.

Attempt to get the range of the first token or initial portion only - this is ad-hoc, just a cheap way to improve a certain 'query custom operation' error range

Gets the syntax range of this construct

Indicates if this expression arises from error recovery

Represents a syntax tree for F# expressions

F# syntax: x: #I1 & #I2 F# syntax: x: 't & #I1 & #I2 Shorthand for x: 't when 't :> I1 and 't :> I2

A type arising from a parse error

F# syntax: ^a or ^b, used in trait calls

F# syntax: a: b, used in signatures and type annotations

F# syntax: ident=1 etc., used in static parameters to type providers

F# syntax: const expr, used in static parameters to type providers

F# syntax: null, used in parameters to type providers

F# syntax: 1, "abc" etc, used in parameters to type providers For the dimensionless units i.e. 1, and static parameters to provided types

F# syntax: for units of measure e.g. m^3, kg^1/2

F# syntax: #type

F# syntax: typ with constraints

F# syntax: _

F# syntax: 'Var

F# syntax: type -> type

F# syntax: type[]

F# syntax: {| id: type; ...; id: type |} F# syntax: struct {| id: type; ...; id: type |}

F# syntax: type * ... * type F# syntax: struct (type * ... * type)

F# syntax: type.A.B.C<type, ..., type>

F# syntax: type<type, ..., type> or type type or (type, ..., type) type isPostfix: indicates a postfix type application e.g. "int list" or "(int, string) dict"

F# syntax: A.B.C

Gets the syntax range of this construct

Represents a syntax tree for F# types

List of type parameter declarations with optional type constraints, enclosed in `< ... >` (postfix) or `( ... )` (prefix), or a single prefix parameter.

F# syntax is SomeThing<'T>

F# syntax is 'typar: delegate<'Args, unit>

F# syntax is 'typar: enum<'UnderlyingType>

F# syntax is ^T: (static member MemberName: ^T * int -> ^T)

F# syntax is 'typar :> type

F# syntax is default ^T: type

F# syntax is 'typar: equality

F# syntax is 'typar: comparison

F# syntax is 'typar : null

F# syntax is 'typar: null

F# syntax is 'typar: unmanaged

F# syntax: is 'typar: not struct

F# syntax: is 'typar: struct

The unchecked abstract syntax tree of F# type constraints

Represents the explicit declaration of a type parameter

A 'do' binding in a module. Must have type 'unit'

A normal 'let' binding in a module

A standalone expression in a module

The kind associated with a binding - "let", "do" or a standalone expression

Indicates if an expression is an atomic expression. An atomic expression has no whitespace unless enclosed in parentheses, e.g. 1, "3", ident, ident.[expr] and (expr). If an atomic expression has type T, then the largest expression ending at the same range as the atomic expression also has type T.

Represents a record field name plus a flag indicating if given record field name is syntactically correct and can be used in name resolution.

Represents the location of the separator block + optional position of the semicolon (used for tooling support)

Indicates if a for loop is 'for x in e1 -> e2', only valid in sequence expressions

Indicates if a for loop is 'for x in e1 -> e2', only valid in sequence expressions

Represents whether a debug point should be present for a 'let' binding, that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for the 'while' in a 'while...' loop, that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for the 'in' or 'to' of a 'for...' loop, that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for the 'for' in a 'for...' loop, that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for the 'finally' in a 'try .. finally', that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for the 'with' in a 'try .. with', that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be present for a 'try', that is whether the construct corresponds to a debug point in the original source.

Represents whether a debug point should be suppressed for either the first or second part of a sequential execution, that is whether the construct corresponds to a debug point in the original source.

Represents a debug point at a leaf expression (e.g. an application or constant).

Represents whether a debug point should be present for the target of a decision tree, that is whether the construct corresponds to a debug point in the original source.

A construct marked or assumed 'private'

A construct marked or assumed 'internal'

A construct marked or assumed 'public'

Represents an accessibility modifier in F# syntax

Represents an unchecked syntax tree of F# unit of measure exponents.

A parenthesized measure

A variable unit of measure

An anonymous (inferred) unit of measure

The '1' unit of measure

A power of a unit of measure, e.g. 'kg ^ 2'

A division of two units of measure, e.g. 'kg / m'

A sequence of several units of measure, e.g. 'kg m m'

A product of two units of measure, e.g. 'kg * m'

A named unit of measure

Represents an unchecked syntax tree of F# unit of measure annotations.

Source Line, File, and Path Identifiers Containing both the original value as the evaluated value.

Old comment: "we never iterate, so the const here is not another SynConst.Measure"

Used internally in the typechecker once an array of unit16 constants is detected, to allow more efficient processing of large arrays of uint16 constants.

F# syntax: verbatim or regular byte string, e.g. "abc"B. Also used internally in the typechecker once an array of unit16 constants is detected, to allow more efficient processing of large arrays of uint16 constants.

F# syntax: verbatim or regular string, e.g. "abc"

UserNum(value, suffix) F# syntax: 1Q, 1Z, 1R, 1N, 1G

F# syntax: 23.4M

F# syntax: 'a'

F# syntax: 1.30, 1.40e10 etc.

F# syntax: 1.30f, 1.40e10f etc.

F# syntax: 13un

F# syntax: 13n

F# syntax: 13UL

F# syntax: 13L

F# syntax: 13u, 0x4000u, 0o0777u

F# syntax: 13, 0x4000, 0o0777

F# syntax: 13us, 0x4000us, 0o0777us, 0b0111101us

F# syntax: 13s, 0x4000s, 0o0777s, 0b0111101s

F# syntax: 13uy, 0x40uy, 0oFFuy, 0b0111101uy

F# syntax: 13y, 0xFFy, 0o077y, 0b0111101y

F# syntax: true, false

F# syntax: ()

Gets the syntax range of this construct

The unchecked abstract syntax tree of constants in F# types and expressions.

Indicate if the byte string had a special format

Indicate if the string had a special format

Gets the syntax range of this construct

Represents a syntactic type parameter

The construct is a statically inferred type inference variable '^T'

The construct is a normal type inference variable

Represents whether a type parameter has a static requirement or not (^T or 'T)

The construct arises from error recovery

The construct arises normally

Indicates if the construct arises from error recovery

Get the trivia of the idents

Indicates if the construct ends in '.' due to error recovery

Gets the syntax range for part of this construct

Gets the syntax range of this construct

Get the long ident for this construct

Get the idents with potential trivia attached

Get the dot ranges

Represents a long identifier with possible '.' at end. Typically dotRanges.Length = lid.Length-1, but they may be same if (incomplete) code ends in a dot, e.g. "Foo.Bar." The dots mostly matter for parsing, and are typically ignored by the typechecker, but if dotRanges.Length = lid.Length, then the parser must have reported an error, so the typechecker is allowed more freedom about typechecking these expressions. LongIdent can be empty list - it is used to denote that name of some AST element is absent (i.e. empty type name in inherit)

Represents a long identifier e.g. 'A.B.C'

Represents an identifier with potentially additional trivia information.

Represents an identifier in F# code

Controls the behavior when a SynExpr is reached; it can just do defaultTraverse(expr) if you have no special logic for this node, and want the default processing to pick which sub-node to dive deeper into or can inject non-default behavior, which might incorporate: traverseSynExpr(subExpr) to recurse deeper on some particular sub-expression based on your own logic path helps to track AST nodes that were passed during traversal

Represents the set of ancestor nodes traversed before reaching the current node in a traversal of the untyped abstract syntax tree.

The range of the syntax node, inclusive of its contents.

Represents a major syntax node in the untyped abstract syntax tree.

Keywords paired with their descriptions. Used in completion and quick info.

Indicates a ValRef generated to facilitate tuple eliminations

Mark some variables (the ones we introduce via abstractBigTargets) as don't-eliminate

The prefix of the names used for the fake namespace path added to all dynamic code entries in FSI.EXE

Reuses generated exception field name objects for common field numbers

Reuses generated union case field name objects for common field numbers

Mangle the static parameters for a provided type or method

Mangle the static parameters for a provided type or method

Try to chop "get_" or "set_" from a string. If the string does not start with "get_" or "set_", this function raises an exception.

Try to chop "get_" or "set_" from a string

Is this character a part of a long identifier?

The characters that are allowed to be in an identifier.

The characters that are allowed to be the first character of an identifier.

Like ConvertValLogicalNameToDisplayName but produces a tagged layout

Like ConvertLogicalNameToDisplayName but produces a tagged layout

Take a core display name for a value (e.g. op_Addition or PropertyName) and convert it to display text Foo --> Foo + --> ``+`` op_Addition --> (+) op_Multiply --> ( * ) op_DereferencePercent --> (!%) A-B --> ``A-B`` |A|_| --> (|A|_|) let --> ``let`` type --> ``type`` params --> ``params`` base --> base or --> or mod --> mod

Converts the logical name for and operator back into the core of a display name. For example: Foo --> Foo + --> + op_Addition --> + op_DereferencePercent --> !% A-B --> A-B |A|_| --> |A|_| base --> base regardless of IsBaseVal Used on names of all kinds TODO: We should assess uses of this function. In any cases it is used it probably indicates that text is being generated which: 1. does not contain double-backticks for non-identifiers 2. does not put parentheses around operators or active pattern names If the text is immediately in quotes, this is generally ok, e.g. error FS0038: '+' is bound twice in this pattern error FS0038: '|A|_|' is bound twice in this pattern error FS0038: 'a a' is bound twice in this pattern If not, the it is likely this should be replaced by ConvertValLogicalNameToDisplayName.

Take a core display name (e.g. "List" or "Strange module name") and convert it to display text by adding backticks if necessary. Foo --> Foo + --> ``+`` A-B --> ``A-B``

Converts the core of an operator name into a logical name. For example, + --> op_Addition !% --> op_DereferencePercent Only used on actual operator names

Is the name a logical operator name, including unary, binary and ternary operators op_UnaryPlus - yes op_Addition - yes op_Range - yes (?) op_RangeStep - yes (?) op_DynamicAssignment - yes op_Quack - no + - no ABC - no ABC DEF - no base - no |A|_| - no

Adds double backticks if necessary to make a valid identifier, e.g. op_Addition --> op_Addition + --> ``+`` (this is not op_Addition) |>> --> ``|>>`` (this is not an op_) A-B --> ``A-B`` AB --> AB |A|_| --> |A|_| this is an active pattern name, needs parens not backticks Removes double backticks if not necessary to make a valid identifier, e.g. ``A`` --> A ``A-B`` --> ``A-B``

Determines if the specified name is a valid name for an active pattern. |A|_| --> true |A|B| --> true |A| --> true | --> false || --> false op_Addition --> false TBD: needs unit testing

Is the name a valid F# identifier, primarily used internally in PrettyNaming.fs for determining if an identifier needs backticks. In general do not use this routine. It is only used in one quick fix, for determining if it is valid to add "_" in front of an identifier. A --> true A' --> true _A --> true A0 --> true |A|B| --> false op_Addition --> true + --> false let --> false base --> false TBD: needs unit testing

Returns `true` if given string is an operator display name, e.g. ( |>> ) |>> ..

Prefix for compiled (mangled) operator names.

Some general F# utilities for mangling / unmangling / manipulating names. Anything to do with special names of identifiers and other lexical rules

Applies the given function to each node of the AST and its context (path) down to a given position, returning Some x for the last (deepest) node for which the function returns Some x for some value x, otherwise None. Traversal is short-circuited if no matching node is found through the given position.

The function to apply to each node and its context to derive an optional value. The position in the input file down to which to apply the function. The AST to search. The last (deepest) value for which the function returns Some, or None if no matching node is found. let range = (pos, parsedInput) ||> ParsedInput.tryPickLast (fun path node -> match node, path with | FuncIdent range -> Some range | _ -> None)

Applies the given function to each node of the AST and its context (path) down to a given position, returning Some x for the first node for which the function returns Some x for some value x, otherwise None. Traversal is short-circuited if no matching node is found through the given position.

The function to apply to each node and its context to derive an optional value. The position in the input file down to which to apply the function. The AST to search. The first value for which the function returns Some, or None if no matching node is found. let range = (pos, parsedInput) ||> ParsedInput.tryPick (fun _path node -> match node with | SyntaxNode.SynExpr (SynExpr.InterpolatedString (range = range)) when rangeContainsPos range pos -> Some range | _ -> None)

Dives to the deepest node that contains the given position, returning the node and its path if found, or None if no node contains the position.

The position in the input file down to which to dive. The AST to search. The deepest node containing the given position, along with the path taken through the node's ancestors to find it.

Applies a function to each node of the AST and its context (path) until the folder returns None, threading an accumulator through the computation.

The function to use to update the state given each node and its context, or to stop traversal by returning None. The initial state. The AST to fold over. The final state.

Applies a function to each node of the AST and its context (path), threading an accumulator through the computation.

The function to use to update the state given each node and its context. The initial state. The AST to fold over. The final state. let unnecessaryParentheses = (HashSet Range.comparer, parsedInput) ||> ParsedInput.fold (fun acc path node -> match node with | SyntaxNode.SynExpr (SynExpr.Paren (expr = inner; rightParenRange = Some _; range = range)) when not (SynExpr.shouldBeParenthesizedInContext getLineString path inner) -> ignore (acc.Add range) acc | SyntaxNode.SynPat (SynPat.Paren (inner, range)) when not (SynPat.shouldBeParenthesizedInContext path inner) -> ignore (acc.Add range) acc | _ -> acc)

Applies the given predicate to each node of the AST and its context (path) down to a given position, returning true if a matching node is found, otherwise false. Traversal is short-circuited if no matching node is found through the given position.

The predicate to match each node against. The position in the input file down to which to apply the function. The AST to search. True if a matching node is found, or false if no matching node is found. let isInTypeDefn = (pos, parsedInput) ||> ParsedInput.exists (fun _path node -> match node with | SyntaxNode.SynTypeDefn _ -> true | _ -> false)

Holds operations for working with the untyped abstract syntax tree ().

Applies the given function to each node of the AST and its context (path) down to a given position, returning Some x for the last (deepest) node for which the function returns Some x for some value x, otherwise None. Traversal is short-circuited if no matching node is found through the given position.

The function to apply to each node and its context to derive an optional value. The position in the input file down to which to apply the function. The AST to search. The last (deepest) value for which the function returns Some, or None if no matching node is found. let range = (pos, ast) ||> SyntaxNodes.tryPickLast (fun path node -> match node, path with | FuncIdent range -> Some range | _ -> None)

Applies the given function to each node of the AST and its context (path) down to a given position, returning Some x for the first node for which the function returns Some x for some value x, otherwise None. Traversal is short-circuited if no matching node is found through the given position.

The function to apply to each node and its context to derive an optional value. The position in the input file down to which to apply the function. The AST to search. The first value for which the function returns Some, or None if no matching node is found. let range = (pos, ast) ||> SyntaxNodes.tryPick (fun _path node -> match node with | SyntaxNode.SynExpr (SynExpr.InterpolatedString (range = range)) when rangeContainsPos range pos -> Some range | _ -> None)

Dives to the deepest node that contains the given position, returning the node and its path if found, or None if no node contains the position.

The position in the input file down to which to dive. The AST to search. The deepest node containing the given position, along with the path taken through the node's ancestors to find it.

Applies a function to each node of the AST and its context (path) until the folder returns None, threading an accumulator through the computation.

The function to use to update the state given each node and its context, or to stop traversal by returning None. The initial state. The AST to fold over. The final state.

Applies a function to each node of the AST and its context (path), threading an accumulator through the computation.

The function to use to update the state given each node and its context. The initial state. The AST to fold over. The final state. let unnecessaryParentheses = (HashSet Range.comparer, ast) ||> SyntaxNodes.fold (fun acc path node -> match node with | SyntaxNode.SynExpr (SynExpr.Paren (expr = inner; rightParenRange = Some _; range = range)) when not (SynExpr.shouldBeParenthesizedInContext getLineString path inner) -> ignore (acc.Add range) acc | SyntaxNode.SynPat (SynPat.Paren (inner, range)) when not (SynPat.shouldBeParenthesizedInContext path inner) -> ignore (acc.Add range) acc | _ -> acc)

Applies the given predicate to each node of the AST and its context (path) down to a given position, returning true if a matching node is found, otherwise false. Traversal is short-circuited if no matching node is found through the given position.

The predicate to match each node against. The position in the input file down to which to apply the function. The AST to search. True if a matching node is found, or false if no matching node is found. let isInTypeDefn = (pos, ast) ||> SyntaxNodes.exists (fun _path node -> match node with | SyntaxNode.SynTypeDefn _ -> true | _ -> false)

Holds operations for working with the untyped abstract syntax tree.

Extracts the , if any, from the given .

Holds operations for working with s in the untyped abstract syntax tree (AST).

Returns true if the given expression should be parenthesized in the given context, otherwise false.

A function for getting the text of a given source line. The expression's ancestor nodes. The expression to check. True if the given expression should be parenthesized in the given context, otherwise false.

Returns true if the given pattern should be parenthesized in the given context, otherwise false.

The pattern's ancestor nodes. The pattern to check. True if the given pattern should be parenthesized in the given context, otherwise false.

A kind that determines what range in a source's text is semantically classified as after type-checking.

A builder that will build an semantic classification key store based on the written Item and its associated range.

Get a read only view on the semantic classification key store

Stores a list of semantic classification key strings and their ranges in a memory mapped file. Provides a view to iterate over the contents of the file.

Iterate through the stored SemanticClassificationItem entries from the store and apply the passed function on each entry.

Provides a read only view to iterate over the semantic classification contents.

The methods (or other items) in the group

The shared name of the methods (or other items) in the group

Represents a group of methods (or other items) returned by GetMethods.

The documentation for the item

Does the type name or method support a static arguments list, like TP<42,"foo"> or conn.CreateCommand<42, "foo">(arg1, arg2)?

The tagged text for the return type for the method (or other item)

The parameters of the method in the overload set

Does the method support an arguments list? This is always true except for static type instantiations like TP<42,"foo">.

Does the method support a params list arg?

The description representation for the method (or other item)

Represents one method (or other item) in a method group. The item may represent either a method or a single, non-overloaded item such as union case or a named function value.

The name of the parameter.

Is the parameter optional

The representation for the parameter including its name, its type and visual indicators of other information such as whether it is optional.

A key that can be used for sorting the parameters, used to help sort overloads.

Represents one parameter for one method (or other item) in a group.

Represents a set of declarations in F# source code, with information attached ready for display by an editor. Returned by GetDeclarations.

Get the text to display in the declaration list for the declaration. This is a display name without backticks.

Get the text for the declaration as it's to be inserted into source code. This is a display name with backticks if necessary.

Get the text to display in the declaration list for the declaration. This is a display name without backticks.

Get the completion kind of the item

Get the glyph to use

Get the description

Get the accessibility of the item

Represents a declaration in F# source code, with information attached ready for display by an editor. Returned by GetDeclarations.

A list of data tip elements to display.

Information for building a tool tip box.

An error occurred formatting this element

A single type, method, etc with comment. May represent a method overload group.

A single tool tip display element

Parameter name

Extra text, goes at the end

typar instantiation text, to go after xml

A single data tip display element

The kind of container.

The name of the container or file

The fully qualified name of the container. For files it returns empty string.

Represents result of 'GetNavigationItems' operation - this contains all the members and currently selected indices. First level correspond to types & modules and second level are methods etc.

Represents top-level declarations (that should be in the type drop-down) with nested declarations (that can be shown in the member drop-down)

Represents an item to be displayed in the navigation bar

Indicates a kind of item to show in an F# navigation bar

The locations of commas and close parenthesis (or, last char of last arg, if no final close parenthesis)

The location of the open-parentheses

Either empty or a name if an actual named parameter; f(0,a=4,?b=None) would be [|None; Some "a"; Some "b"|]

The start location of long identifier prior to the open-parentheses

The end location of long identifier prior to the open-parentheses

The text of the long identifier prior to the open-parentheses

Is false if either this is a call without parens "f x" or the parser recovered as in "f(x,y"

Array of locations for each argument, and a flag if that argument is named

Find the information about parameter info locations at a particular source location

Represents the locations relevant to activating parameter info in an IDE

Represents the location of a tupled argument, which can optionally be a named argument.

Last part of the entity's full name.

Full display name (i.e. last ident plus modules with `RequireQualifiedAccess` attribute prefixed).

Namespace that is needed to open to make the entity resolvable in the current scope.

Ident parts needed to append to the current ident to make it resolvable in current scope.

Full name, relative to the current scope.

Helper data structure representing a symbol, suitable for implementing unresolved identifiers resolution code fixes.

`ShortIdent` with a flag indicating if it's resolved in some scope.

An array of `ShortIdent`.

Short identifier, i.e. an identifier that contains no dots.

Where open statements should be added.

Current position (F# compiler line number).

Current scope kind.

Insert open namespace context.

Kind of lexical scope.

Completing a method override (e.g. override this.ToStr|)

Completing a pattern in a match clause, member/let binding or lambda

Completing a type abbreviation (e.g. type Long = int6|) or a single case union without a bar (type SomeUnion = Abc|)

Completing union case fields declaration (e.g. 'A of stri|' but not 'B of tex|: string')

Completing a type annotation (e.g. foo (x: |)) Completing a type application (e.g. typeof<str| >)

Completing an attribute name, outside of the constructor

Completing named parameters\setters in parameter list of attributes\constructor\method calls end of name ast node * list of properties\parameters that were already set

Completing records field

Completing something after the inherit keyword

Completion context cannot be determined due to errors

Any other position in a pattern that does not need special handling

Completing a record field identifier in a pattern (e.g. fun { Field1 = a; Fie| } -> )

Completing union case field identifier in a pattern (e.g. fun (Case (field1 = a; fie| )) -> )

Completing union case field pattern (e.g. fun (Some (Value = v| )) -> )

Completing union case field pattern (e.g. fun (Some v| ) -> ) or fun (Some (v| )) -> ). In theory, this could also be parameterized active pattern usage.

Position in the tuple. None if there is no tuple, with only one field outside of parentheses - `Some v|` True when completing the first field in the tuple and no other field is bound - `Case (a|)` but not `Case (a|, b)` Range of the case identifier

Performs an operation on the cache in thread safe manner.

Clears the cache.

Thread safe wrapper over `IAssemblyContentCache`.

Try get an assembly cached content.

Store an assembly content.

Assembly content cache.

Assembly content.

Content type used to get assembly content.

Assembly file last write time.

`RawEntity` list retrieved from an assembly.

Cache display name and namespace, used for completion.

Function that returns `EntityKind` based of given `LookupKind`.

Parent module that has `AutoOpen` attribute.

Parent module that has the largest scope and has `RequireQualifiedAccess` attribute.

The most narrative parent module that has `RequireQualifiedAccess` attribute.

`FSharpEntity.Namespace`.

Entity name parts with removed module suffixes (Ns.M1Module.M2Module.M3.entity -> Ns.M1.M2.M3.entity) and replaced compiled names with display names (FSharpEntity.DisplayName, FSharpValueOrFunction.DisplayName). Note: *all* parts are cleaned, not the last one.

Full entity name as it's seen in compiled code (raw FSharpEntity.FullName, FSharpValueOrFunction.FullName).

Represents type, module, member, function or value in a compiled assembly.

Assembly path.

Entity lookup type.

All assembly content.

Public assembly content only.

Assembly content type.

Represent an Xml documentation block in source code

Indicates an external declaration was found

Indicates a declaration location was found

Indicates a declaration location was not found, with an additional reason

Represents the result of the GetDeclarationLocation operation.

Trying to find declaration of ProvidedMember without TypeProviderDefinitionLocationAttribute

Trying to find declaration of ProvidedType without TypeProviderDefinitionLocationAttribute

Source code file is not available

Generic reason: no particular information about error apart from a message

Represents the reason why the GetDeclarationLocation operation failed.

Represents a symbol in an external (non F#) assembly

Represents the type of a single method parameter

Type variable defined in non-F# assembly.

Pointer defined in non-F# assembly.

Array of type that is defined in non-F# assembly.

Type defined in non-F# assembly.

Represents a type in an external (non F#) assembly.

Position of the last dot.

The column number at the end of full partial name.

Last part of long ident.

Qualifying idents, prior to the last dot, not including the last part.

Empty partial long name.

Qualified long name.

Capture information about an interface in ASTs

Extension methods for the TcResolutions type.

Corrects insertion line number based on kind of scope and text surrounding the insertion point.

Returns long identifier at position.

Returns `InsertContext` based on current position and symbol idents.

Returns `InsertContext` based on current position and symbol idents.

A pattern that collects all sequential expressions to avoid StackOverflowException

Operations querying the entire syntax tree

Returns (possibly cached) assembly content.

Given a `FSharpAssemblySignature`, returns assembly content.

Provides assembly content.

Get the list of Xml documentation from current source code

if it's a blank XML comment with trailing "<", returns Some (index of the "<"), otherwise returns None

Tests whether the user is typing something like "member x." or "override (*comment*) x."

Get the partial long name of the identifier to the left of index. For example, for `System.DateTime.Now` it returns PartialLongName ([|"System"; "DateTime"|], "Now", Some 32), where "32" pos of the last dot.

Get the partial long name of the identifier to the left of index.

Given a string and a position in that string, find an identifier as expected by `GotoDefinition`. This will work when the cursor is immediately before the identifier, within the identifier, or immediately after the identifier. 'tolerateJustAfter' indicates that we tolerate being one character after the identifier, used for goto-definition In general, only identifiers composed from upper/lower letters and '.' are supported, but there are a couple of explicitly handled exceptions to allow some common scenarios: - When the name contains only letters and '|' symbol, it may be an active pattern, so we treat it as a valid identifier - e.g. let ( |Identity| ) a = a (but other identifiers that include '|' are not allowed - e.g. '||' operator) - It searches for double tick (``) to see if the identifier could be something like ``a b`` REVIEW: Also support, e.g., operators, performing the necessary mangling. (i.e., I would like that the name returned here can be passed as-is (post `.`-chopping) to `GetDeclarationLocation.) In addition, return the position where a `.` would go if we were making a call to `DeclItemsForNamesAtPosition` for intellisense. This will allow us to use find the correct qualified items rather than resorting to the more expensive and less accurate environment lookup.

Puts us after the last character.

Methods for cheaply and inaccurately parsing F#. These methods are very old and are mostly to do with extracting "long identifier islands" A.B.C from F# source code, an approach taken from pre-F# VS samples for implementing intellisense. This code should really no longer be needed since the language service has access to parsed F# source code ASTs. However, the long identifiers are still passed back to GetDeclarations and friends in the F# Compiler Service and it's annoyingly hard to remove their use completely. In general it is unlikely much progress will be made by fixing this code - it will be better to extract more information from the F# ASTs. It's also surprising how hard even the job of getting long identifier islands can be. For example the code below is inaccurate for long identifier chains involving ``...`` identifiers. And there are special cases for active pattern names and so on.

Find corresponding interface declaration at a given position

Generate stub implementation of an interface at a start column

Check whether an entity is an interface or type abbreviation of an interface

Get interface member signatures

Get associated member names and ranges. In case of properties, intrinsic ranges might not be correct for the purpose of getting positions of 'member', which indicate the indentation for generating new members

Check whether an interface is empty

Get members in the decreasing order of inheritance chain

TextSpan in BlockSpan

HintSpan in BlockSpan

Stores the range for a construct, the sub-range that should be collapsed for outlining, a tag for the construct type, and a tag for the collapse style

Tag to identify the construct that can be stored alongside its associated ranges

Collapse indicates the way a range/snapshot should be collapsed. `Same` is for a scope inside some kind of scope delimiter, e.g. `[| ... |]`, `[ ... ]`, `{ ... }`, etc. `Below` is for expressions following a binding or the right hand side of a pattern, e.g. `let x = ...`

Returns outlining ranges for given parsed input.

Get all unused declarations in a file

The relative name that can be applied to a simplifiable name

The range of a name that can be simplified

Data for use in finding unnecessarily-qualified names and generating diagnostics to simplify them

Get all ranges that can be simplified in a file

Get all unused open declarations in a file

Defines a write-only stream used to capture output of the hosted F# Interactive dynamic compiler.

Feeds content into the stream.

Defines a read-only input stream used to feed content to the hosted F# Interactive dynamic compiler.

Event fires when a root-level value is bound to an identifier, e.g., via `let x = ...`.

Raised when an interaction is successfully typechecked and executed, resulting in an update to the type checking state. This event is triggered after parsing and checking, either via input from 'stdin', or via a call to EvalInteraction.

A host calls this to get the active language ID if provided by fsi-server-lcid

A host calls this to determine if the --gui parameter is active

The single, global interactive checker to use in conjunction with other operations on the FsiEvaluationSession. If you are using an FsiEvaluationSession in this process, you should only use this InteractiveChecker for additional checking operations.

Get all the dynamically generated assemblies

Get a handle to the resolved view of the current signature of the incrementally generated assembly.

Tries to find a root-level value that is bound to the given identifier

Load the dummy interaction, load the initial files, and, if interacting, start the background thread to read the standard input. Performs these steps: - Load the dummy interaction, if any - Set up exception handling, if any - Load the initial files, if any - Start the background thread to read the standard input, if any - Sit in the GUI event loop indefinitely, if needed

A host calls this to report an unhandled exception in a standard way, e.g. an exception on the GUI thread gets printed to stderr

Typecheck the given script fragment in the type checking context implied by the current state of F# Interactive. The results can be used to access intellisense, perform resolutions, check brace matching and other information. Operations may be run concurrently with other requests to the InteractiveChecker.

A host calls this to request an interrupt on the evaluation thread.

Get a configuration that uses a private inbuilt implementation of the 'fsi' object and does not implicitly reference FSharp.Compiler.Interactive.Settings.dll.

Get a configuration that uses the 'fsi' object (normally from FSharp.Compiler.Interactive.Settings.dll, an object from another DLL with identical characteristics) to provide an implementation of the configuration. FSharp.Compiler.Interactive.Settings.dll is referenced by default.

Get a configuration that uses the 'fsi' object (normally from FSharp.Compiler.Interactive.Settings.dll, an object from another DLL with identical characteristics) to provide an implementation of the configuration. The flag indicates if FSharp.Compiler.Interactive.Settings.dll is referenced by default.

A host calls this to get the completions for a long identifier, e.g. in the console Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Gets the root-level values that are bound to an identifier

Format a value to a string using the current PrintDepth, PrintLength etc settings provided by the active fsi configuration object

Execute the given script. Stop on first error, discarding the rest of the script. Errors and warnings are collected apart from any exception arising from execution which is returned via a Choice. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Execute the given script. Stop on first error, discarding the rest of the script. Errors are sent to the output writer, a 'true' return value indicates there were no errors overall. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors and warnings are collected apart from any exception arising from execution which is returned via a Choice. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'. The scriptFileName parameter is used to report errors including this file name.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors and warnings are collected apart from any exception arising from execution which is returned via a Choice. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors are sent to the output writer, a 'true' return value indicates there were no errors overall. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'. The scriptFileName parameter is used to report errors including this file name.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors are sent to the output writer, a 'true' return value indicates there were no errors overall. Execution is performed on the 'Run()' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors and warnings are collected apart from any exception arising from execution which is returned via a Choice. Parsing is performed on the current thread, and execution is performed synchronously on the 'main' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'. The scriptFileName parameter is used to report errors including this file name.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors and warnings are collected apart from any exception arising from execution which is returned via a Choice. Parsing is performed on the current thread, and execution is performed synchronously on the 'main' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors are sent to the output writer. Parsing is performed on the current thread, and execution is performed synchronously on the 'main' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'. The scriptFileName parameter is used to report errors including this file name.

Execute the code as if it had been entered as one or more interactions, with an implicit termination at the end of the input. Stop on first error, discarding the rest of the input. Errors are sent to the output writer. Parsing is performed on the current thread, and execution is performed synchronously on the 'main' thread. Due to a current limitation, it is not fully thread-safe to run this operation concurrently with evaluation triggered by input from 'stdin'.

Create an FsiEvaluationSession, reading from the given text input, writing to the given text output and error writers

The dynamic configuration of the evaluation session The command line arguments for the evaluation session Read input from the given reader Write errors to the given writer Write output to the given writer Optionally make the dynamic assembly for the session collectible An optional resolver for legacy MSBuild references

Creates a root-level value with the given name and .NET object. If the .NET object contains types from assemblies that are not referenced in the interactive session, it will try to implicitly resolve them by default configuration. Name must be a valid identifier.

Represents an F# Interactive evaluation session.

Thrown when there was an error compiling the given code in FSI.

Implicitly reference FSharp.Compiler.Interactive.Settings.dll

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Hook for listening for evaluation bindings

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

Called by the evaluation session to ask the host for parameters to format text for output

The evaluation session calls this at an appropriate point in the startup phase if the --fsi-server parameter was given

The evaluation session calls this to report the preferred view of the command line arguments after stripping things like "/use:file.fsx", "-r:Foo.dll" etc.

Indicate a special console "readline" reader for the evaluation session, if any.  A "console" gets used if --readline is specified (the default on Windows + .NET); and --fsi-server is not given (always combine with --readline-), and OptionalConsoleReadLine is given. When a console is used, special rules apply to "peekahead", which allows early typing on the console. Peekahead happens if --peekahead- is not specified (the default). In this case, a prompt is printed early, a background thread is created and the OptionalConsoleReadLine is used to read the first line. If a console is not used, then inReader.Peek() is called early instead.   Further lines are read using OptionalConsoleReadLine(). If not provided, lines are read using inReader.ReadLine().  

Schedule a restart for the event loop.

Called by the evaluation session to ask the host to enter a dispatch loop like Application.Run(). Only called if --gui option is used (which is the default). Gets called towards the end of startup and every time a ThreadAbort escaped to the backup driver loop. Return true if a 'restart' is required, which is a bit meaningless.

Request that the given operation be run synchronously on the event loop.

The FSharpSymbolUse for the symbol defined

The symbol defined

The display name of the symbol defined

The details of the expression defined

The value of the symbol defined, if any

The evaluated F# value

The identifier of the value

Represents an evaluated F# value that is bound to an identifier

The value, as an object

The type of the value, from the point of view of the .NET type system

The type of the value, from the point of view of the F# type system

Represents an evaluated F# value

When set to 'false', disables the display of properties of evaluated objects in the output of the interactive session.

When set to 'false', disables the display of sequences in the output of the interactive session.

When set to 'false', disables the display of declaration values in the output of the interactive session.

Get or set the print width of the interactive session.

Get or set the total print size of the interactive session.

Get or set the total print length of the interactive session.

Get or set the print depth of the interactive session.

Get or set the format provider used in the output of the interactive session.

Get or set the floating point format used in the output of the interactive session.

Gets or sets the current event loop being used to process interactions.

The command line arguments after ignoring the arguments relevant to the interactive environment and replacing the first argument with the name of the last script file, if any. Thus 'fsi.exe test1.fs test2.fs -- hello goodbye' will give arguments 'test2.fs', 'hello', 'goodbye'. This value will normally be different to those returned by System.Environment.GetCommandLineArgs.

When set to 'false', disables the display of properties of evaluated objects in the output of the interactive session.

When set to 'false', disables the display of sequences in the output of the interactive session.

When set to 'false', disables the display of declaration values in the output of the interactive session.

Get or set the print width of the interactive session.

Get or set the total print size of the interactive session.

Get or set the total print length of the interactive session.

Get or set the print depth of the interactive session.

Get or set the format provider used in the output of the interactive session.

Get or set the floating point format used in the output of the interactive session.

Gets or sets the current event loop being used to process interactions.

The command line arguments after ignoring the arguments relevant to the interactive environment and replacing the first argument with the name of the last script file, if any. Thus 'fsi.exe test1.fs test2.fs -- hello goodbye' will give arguments 'test2.fs', 'hello', 'goodbye'. This value will normally be different to those returned by System.Environment.GetCommandLineArgs.

Register a printer that controls the output of the interactive session.

Register a print transformer that controls the output of the interactive session.

Operations supported by the currently executing F# Interactive session.

Schedule a restart for the event loop.

Run the event loop.

True if the event loop was restarted; false otherwise.

Request that the given operation be run synchronously on the event loop.

The result of the operation.

An event loop used by the currently executing F# Interactive session to execute code in the context of a GUI or another event-based system.

A default implementation of the 'fsi' object, used by GetDefaultConfiguration(). Note this is a different object to FSharp.Compiler.Interactive.Settings.fsi in FSharp.Compiler.Interactive.Settings.dll, which can be used as an alternative implementation of the interactive settings if passed as a parameter to GetDefaultConfiguration(fsiObj).

A default implementation of the 'fsi' object, used by GetDefaultConfiguration()

Get the Reference Assemblies directory for the .NET Framework (on Windows) This is added to the default resolution path for design-time compilations.

Perform assembly resolution on the given references under the given conditions

Get the "v4.5.1"-style moniker for the highest installed .NET Framework version. This is the value passed back to Resolve if no explicit "mscorlib" has been given. Note: If an explicit "mscorlib" is given, then --noframework is being used, and the whole ReferenceResolver logic is essentially unused. However in the future an option may be added to allow an explicit specification of a .NET Framework version to use for scripts.

Round-tripped baggage

Prepare textual information about where the assembly was resolved from, used for tooltip output

Item specification.

Indicates a script or source being dynamically compiled and executed. Uses implementation assemblies.

Indicates a script or source being edited or compiled. Uses reference assemblies (not implementation assemblies).

A builder that will build an item key store based on the written Item and its associated range.

Stores a list of item key strings and their ranges in a memory mapped file.

The timestamp of the source.

The file path of the source.

Gets the internal text container. Text may be on-disk, in a stream, or a source text.

Creates a FSharpSource from disk. Only used internally.

Creates a FSharpSource from the specified file path by shadow-copying the file.

Creates a FSharpSource.

The storage container for a F# source item that could either be on-disk or in-memory. TODO: Make this public.

The TcConfig passed in to the builder creation.

The full set of source files including those from options

Raised just after the whole project has finished type checking. At this point, accessing the overall analysis results for the project will be quick.

Check if one of the build's references is invalidated.

Raised when the build is invalidated.

Raised just after a file is parsed

Raised just after a file is checked

Raised just before a file is type-checked, to invalidate the state of the file in VS and force VS to request a new direct typecheck of the file. The incremental builder also typechecks the file (error and intellisense results from the background builder are not used by VS).

The list of files the build depends on

Get the preceding typecheck state of a slot, WITH checking if it is up-to-date w.r.t. the timestamps of files and referenced DLLs prior to this one. However, files will not be parsed or checked. Return None if the result is not available or if it is not up-to-date. This is safe for use from non-compiler threads but the objects returned must in many cases be accessed only from the compiler thread.

Create the incremental builder

The project build. Return true if the background work is finished.

Await the untyped parse results for a particular slot in the vector of parse results. This may be a marginally long-running operation (parses are relatively quick, only one file needs to be parsed)

Get the logical time stamp that is associated with the output of the project if it were fully built immediately

Get the preceding typecheck state of a slot. Compute the entire type check of the project up to the necessary point if the result is not available. This may be a long-running operation. This will get full type-check info for the file, meaning no partial type-checking.

Get the final typecheck result. If 'generateTypedImplFiles' was set on Create then the CheckedAssemblyAfterOptimization will contain implementations. This may be a long-running operation. This will get full type-check info for the project, meaning no partial type-checking.

Get the typecheck state after checking a file. Compute the entire type check of the project up to the necessary point if the result is not available. This may be a long-running operation. This will get full type-check info for the file, meaning no partial type-checking.

Get the typecheck state of a slot, without checking if it is up-to-date w.r.t. the timestamps on files and referenced DLLs prior to this one. Return None if the result is not available. This is a very quick operation. This is safe for use from non-compiler threads but the objects returned must in many cases be accessed only from the compiler thread.

Get the preceding typecheck state of a slot, without checking if it is up-to-date w.r.t. the timestamps on files and referenced DLLs prior to this one. Return None if the result is not available. This is a very quick operation. This is safe for use from non-compiler threads but the objects returned must in many cases be accessed only from the compiler thread.

Get the preceding typecheck state of a slot. Compute the entire type check of the project up to the necessary point if the result is not available. This may be a long-running operation.

Get the final typecheck result. If 'generateTypedImplFiles' was set on Create then the CheckedAssemblyAfterOptimization will contain implementations. This may be a long-running operation.

Get the typecheck result after the end of the last file. The typecheck of the project is not 'completed'. This may be a long-running operation.

Get the typecheck state after checking a file. Compute the entire type check of the project up to the necessary point if the result is not available. This may be a long-running operation.

Does the given file exist in the builder's pipeline?

Get the preceding typecheck state of a slot, but only if it is up-to-date w.r.t. the timestamps on files and referenced DLLs prior to this one. Return None if the result is not available. This is a relatively quick operation. This is safe for use from non-compiler threads

Manages an incremental build graph for the build of an F# project

Compute both the "TcInfo" and "TcInfoExtras" parts of the results. Can cause a second type-check if `enablePartialTypeChecking` is true in the checker. Only use when it's absolutely necessary to get rich information on a file.

Compute the "TcInfo" part of the results. If `enablePartialTypeChecking` is false then extras will also be available.

Can cause a second type-check if `enablePartialTypeChecking` is true in the checker. Only use when it's absolutely necessary to get rich information on a file. Will return 'None' for enableBackgroundItemKeyStoreAndSemanticClassification=false.

Compute the "ItemKeyStore" parts of the results. Can cause a second type-check if `enablePartialTypeChecking` is true in the checker. Only use when it's absolutely necessary to get rich information on a file. Will return 'None' for enableBackgroundItemKeyStoreAndSemanticClassification=false.

Represents the state in the incremental graph associated with checking a file

If enabled, holds semantic classification information for Item(symbol)s in a file.

If enabled, stores a linear list of ranges and strings that identify an Item(symbol) in a file. Used for background find all references.

Result of checking most recent file, if any

Accumulated results of type checking. Optional data that isn't needed to type-check a file, but needed for more information for in tooling.

Accumulated errors, last file first

Disambiguation table for module names

Accumulated diagnostics

Accumulated results of type checking. The minimum amount of state in order to continue type-checking following files.

Lookup the global static cache for building the FrameworkTcImports

The syntax tree resulting from the parse

Indicates if any errors occurred during the parse

Name of the file for which this information were created

Get the errors and warnings for the parse

When these files change then the build is invalid

Return the inner-most range associated with a possible breakpoint location

Attempts to find the range of the string interpolation that contains a given position.

Gets the range of where a return type hint could be placed for a function binding. This will be right in front of the equals sign. Returns None if type annotation is present.

Given the position of an expression, attempts to find the range of the '!' in a dereference operation of that expression, like: '!expr', '!(expr)', etc.

Attempts to find the range of a record expression containing the given position.

Attempts to find the range of an attempted lambda expression or pattern, the argument range, and the expr range when writing a C#-style "lambda" (which is actually an operator application)

Attempts to find the range of the name of the nearest outer binding that contains a given position.

Attempts to find the range of a function or method that is being applied. Also accounts for functions in pipelines.

Gets the range of an expression being dereferenced. For `!expr`, gives the range of `expr`

Attempts to find the range of an expression `expr` contained in a `yield expr` or `return expr` expression (and bang-variants).

Attempts to find an Ident of a pipeline containing the given position, and the number of args already applied in that pipeline. For example, '[1..10] |> List.map ' would give back the ident of '|>' and 1, because it applied 1 arg (the list) to 'List.map'.

Determines if the range points to a type name in the type definition.

Determines if the expression or pattern at the given position has a type annotation

Determines if the given position is bound to a type definition

Determines if the given position is bound to a record definition

Determines if the given position is contained within a curried parameter in a binding.

Determines if the given position is inside a function or method application.

Determines if the binding at the given position is bound to a lambda expression

Get declared items and the selected item at the specified location

Gets the ranges of all arguments, if they can be found, for a function application at the given position.

Notable parse info for ParameterInfo at a given location

Represents the results of parsing an F# file and a set of analysis operations based on the parse tree alone.

Get the resolution of the ProjectOptions

Indicates if critical errors existed in the project options

The errors returned by processing the project

Indicates the set of files which must be watched to accurately track changes that affect these results, Clients interested in reacting to updates to these files should watch these files and take actions as described in the documentation for compiler service.

Get a view of the overall signature of the assembly. Only valid to use if HasCriticalErrors is false.

Get a view of the overall contents of the assembly. Only valid to use if HasCriticalErrors is false.

Get the textual usages that resolved to the given symbol throughout the project

Get an optimized view of the overall contents of the assembly. Only valid to use if HasCriticalErrors is false.

Get all textual usages of all symbols throughout the project

A handle to the results of CheckFileInProject.

Success

Aborted because cancellation caused an abandonment of the operation

The result of calling TypeCheckResult including the possibility of abort and background compiler not caught up.

Get the resolution of the ProjectOptions

Get a view of the contents of the assembly up to and including the file just checked

Open declarations in the file, including auto open modules.

Represents complete typechecked implementation file, including its typechecked signatures if any.

Indicates whether type checking successfully occurred with some results returned. If false, indicates that an unrecoverable error in earlier checking/parsing/resolution steps.

The errors returned by parsing a source file.

Indicates the set of files which must be watched to accurately track changes that affect these results, Clients interested in reacting to updates to these files should watch these files and take actions as described in the documentation for compiler service.

Tries to get the current successful TcImports. This is only used in testing. Do not use it for other stuff.

Internal constructor

Internal constructor

Determines if a long ident is resolvable at a specific point.

Determines if a long ident is resolvable at a specific point.

Get the textual usages that resolved to the given symbol throughout the file

Compute a formatted tooltip for the given location

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested. Used to discriminate between 'identifiers', 'strings' and others. For strings, an attempt is made to give a tooltip for a #r "..." location. Use a value from FSharpTokenInfo.Tag, or FSharpTokenTag.Identifier, unless you have other information available. The optional width that the layout gets squashed to.

Similar to GetSymbolUseAtLocation, but returns all found symbols if there are multiple.

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested.

Resolve the names at the given location to a use of symbol.

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested.

Get any extra colorization info that is available after the typecheck

Compute a set of method overloads to show in a dialog relevant to the given code location. The resulting method overloads are returned as symbols.

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested.

Compute a set of method overloads to show in a dialog relevant to the given code location.

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested.

Compute a formatted tooltip for the given keywords

The keywords at the location where the information is being requested.

Get the locations of and number of arguments associated with format specifiers

Get the locations of format specifiers

Compute the Visual Studio F1-help key identifier for the given location, based on name resolution results

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested.

Find the most precise display environment for the given line and column.

Compute a formatted tooltip for the given symbol at position

The symbol. Generic arguments. Display the symbol full name. The position.

Resolve the names at the given location to the declaration location of the corresponding construct.

The line number where the information is being requested. The column number at the end of the identifiers where the information is being requested. The text of the line where the information is being requested. The identifiers at the location where the information is being requested. If not given, then get the location of the symbol. If false, then prefer the location of the corresponding symbol in the implementation of the file (rather than the signature if present). If true, prefer the location of the corresponding symbol in the signature of the file (rather than the implementation).

Get the items for a declaration list in FSharpSymbol format

If this is present, it is used to filter declarations based on location in the parse tree, specifically at 'open' declarations, 'inherit' of class or interface 'record field' locations and r.h.s. of 'range' operator a..b The line number where the completion is happening Partial long name. QuickParse.GetPartialLongNameEx can be used to get it. The text of the line where the completion is happening. This is only used to make a couple of adhoc corrections to completion accuracy (e.g. checking for "..") Function that returns all entities from current and referenced assemblies. A switch to determine whether to generate a default implementation body for overridden method when completing.

Get the items for a declaration list

If this is present, it is used to filter declarations based on location in the parse tree, specifically at 'open' declarations, 'inherit' of class or interface 'record field' locations and r.h.s. of 'range' operator a..b The line number where the completion is happening Partial long name. QuickParse.GetPartialLongNameEx can be used to get it. The text of the line where the completion is happening. This is only used to make a couple of adhoc corrections to completion accuracy (e.g. checking for "..") Function that returns all entities from current and referenced assemblies. Completion context for a particular position computed in advance. A switch to determine whether to generate a default implementation body for overridden method when completing.

Get all textual usages of all symbols throughout the file

Lays out and returns the formatted signature for the typechecked file as source text.

Internal constructor - check a file and collect errors

A handle to the results of CheckFileInProject.

Indicates if the ranges returned by parsing should have '#line' directives applied to them. When compiling code, this should usually be 'true'. For editing tools, this is usually 'false. The default for FSharpParsingOptions.ApplyLineDirectives is 'false'. The default for FSharpParsingOptions arising from FSharpProjectOptions will be 'true' unless '--ignorelinedirectives' is used in the parameters from which these are derived.

Options used to determine active --define conditionals and other options relevant to parsing files in a project

Get the project options

Get the accessibility rights for this project context w.r.t. InternalsVisibleTo attributes granting access to other assemblies

Get the resolution and full contents of the assemblies referenced by the project options

Represents the checking context implied by the ProjectOptions

The symbol referenced

The range of text representing the reference to the symbol

Indicates if the FSharpSymbolUse is private to the implementation & signature file. This is true for function and method parameters.

Indicates if the FSharpSymbolUse is declared as private

Indicates if the reference is used for example at a call site

Indicates if the reference is in a syntactic type

Indicates if the reference is in a pattern

Indicates if the reference is in open statement

Indicates if the reference is via the member being implemented in a class or object expression

Indicates if the reference is a definition for the symbol, either in a signature or implementation

Indicates if the reference is either a builder or a custom operation in a computation expression

Indicates if the reference is in an attribute

The file name the reference occurs in

The display context active at the point where the symbol is used. Can be passed to FSharpType.Format and other methods to format items in a way that is suitable for a specific source code location.

Represents the use of an F# symbol from F# source code

A reference from an ILModuleReader.

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project. A function that calculates a last-modified timestamp for this reference. This will be used to determine if the reference is up-to-date. A function that creates an ILModuleReader for reading module data.

A reference for any portable executable, including F#. The stream is owned by this reference. The stream will be automatically disposed when there are no references to FSharpReferencedProject and is GC collected. Once the stream is evaluated, the function that constructs the stream will no longer be referenced by anything. If the stream evaluation throws an exception, it will be automatically handled.

A function that calculates a last-modified timestamp for this reference. This will be used to determine if the reference is up-to-date. A function that opens a Portable Executable data stream for reading.

A reference for an F# project. The physical data for it is stored/cached inside of the compiler service.

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project. The Project Options for this F# project

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project.

An optional stamp to uniquely identify this set of options If two sets of options both have stamps, then they are considered equal if and only if the stamps are equal

Unused in this API and should be '[]' when used as user-specified input

Unused in this API and should be 'None' when used as user-specified input

Timestamp of project/script load, used to differentiate between different instances of a project load. This ensures that a complete reload of the project or script type checking context occurs on project or script unload/reload.

When true, use the reference resolution rules for scripts rather than the rules for compiler.

When true, the typechecking environment is known a priori to be incomplete, for example when a .fs file is opened outside of a project. In this case, the number of error messages reported is reduced.

The command line arguments for the other projects referenced by this project, indexed by the exact text used in the "-r:" reference in FSharpProjectOptions.

Additional command line argument options for the project. These can include additional files and references.

The files in the project

This is the unique identifier for the project, it is case-sensitive. If it's None, will key off of ProjectFileName in our caching.

Compute the project directory.

Whether the two parse options refer to the same project.

Compare two options sets with respect to the parts of the options that are important to building.

A set of information describing a project or script build configuration.

Unused in this API

Will lazily create the ILModuleReader. Is only evaluated once and can be called by multiple threads.

Delays the creation of an ILModuleReader

Try to get recent approximate type check results for a file.

Parse and typecheck the whole project.

Parses and checks the source file and returns untyped AST and check results.

Fetch the parse information from the background compiler (which checks w.r.t. the FileSystem API)

Fetch the check information from the background compiler (which checks w.r.t. the FileSystem API)

Type-check the result obtained by parsing, but only if the antecedent type checking context is available.

Type-check the result obtained by parsing. Force the evaluation of the antecedent type checking context if needed.

Notify the host that a project has been fully checked in the background (using file contents provided by the file system API) The event may be raised on a background thread.

Raised after a parse of a file in the background analysis. The event will be raised on a background thread.

Raised after a check of a file in the background analysis. The event will be raised on a background thread.

Notify the host that the logical type checking context for a file has now been updated internally and that the file has become eligible to be re-typechecked for errors. The event will be raised on a background thread.

Report a statistic for testability

Report a statistic for testability

Try to get type check results for a file. This looks up the results of recent type checks of the same file, regardless of contents. The version tag specified in the original check of the file is returned. If the source of the file has changed the results returned by this function may be out of date, though may still be usable for generating intellisense menus and information.

The file name for the file. The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. Optionally, specify source that must match the previous parse precisely. An optional string used for tracing compiler operations associated with this request.

Tokenize a single line, returning token information and a tokenization state represented by an integer

Tokenize an entire file, line by line

Parses a source code for a file. Returns an AST that can be traversed for various features.

The path for the file. The file name is also as a module name for implicit top level modules (e.g. in scripts). The source to be parsed. Parsing options for the project or script. Store the parse in a size-limited cache associated with the FSharpChecker. Default: true An optional string used for tracing compiler operations associated with this request.

Parses a source code for a file and caches the results. Returns an AST that can be traversed for various features.

The path for the file. The file name is used as a module name for implicit top level modules (e.g. in scripts). The source to be parsed. Parsing options for the project or script. Store the parse in a size-limited cache associated with the FSharpChecker. Default: true An optional string used for tracing compiler operations associated with this request.

Parse and typecheck all files in a project. All files are read from the FileSystem API Can cause a second type-check on the entire project when `enablePartialTypeChecking` is true on the FSharpChecker.

The options for the project or script. An optional string used for tracing compiler operations associated with this request.

Parse and check a source code file, returning a handle to the results Note: all files except the one being checked are read from the FileSystem API Return FSharpCheckFileAnswer.Aborted if a parse tree was not available.

The name of the file in the project whose source is being checked. An integer that can be used to indicate the version of the file. This will be returned by TryGetRecentCheckResultsForFile when looking up the file. The source for the file. The options for the project or script. An optional string used for tracing compiler operations associated with this request.

This function is called when a project has been cleaned/rebuilt, and thus any live type providers should be refreshed.

The options describing the project that has been cleaned. An optional string used for tracing compiler operations associated with this request.

Notify the checker that given file has changed. This needs to be used when checker is created with documentSource = Custom.

Parse a source code file, returning information about brace matching in the file. Return an enumeration of the matching parenthetical tokens in the file.

The fileName for the file, used to help caching of results. The full source for the file. Parsing options for the project or script. An optional string used for tracing compiler operations associated with this request.

Parse a source code file, returning information about brace matching in the file. Return an enumeration of the matching parenthetical tokens in the file.

The fileName for the file, used to help caching of results. The full source for the file. Parsing options for the project or script. An optional string used for tracing compiler operations associated with this request.

This function is called when the configuration is known to have changed for reasons not encoded in the projectSnapshot. For example, dependent references may have been deleted or created.

This function is called when the configuration is known to have changed for reasons not encoded in the ProjectOptions. For example, dependent references may have been deleted or created.

The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. An optional string used for tracing compiler operations associated with this request.

This function is called when the entire environment is known to have changed for reasons not encoded in the ProjectOptions of any project/compilation.

Used to differentiate between scripts, to consider each script a separate project. Also used in formatted error messages. The source for the file. The editor location for the cursor if available. DocumentSource to load any additional files. Is the preview compiler enabled. Indicates when the script was loaded into the editing environment, so that an 'unload' and 'reload' action will cause the script to be considered as a new project, so that references are re-resolved. Other flags for compilation. Add a default reference to the FSharp.Compiler.Interactive.Settings library. Use the implicit references from the .NET SDK. Set up compilation and analysis for .NET Framework scripts. Override the .NET SDK used for default references. An optional unique stamp for the options. An optional string used for tracing compiler operations associated with this request.

For a given script file, get the FSharpProjectOptions implied by the #load closure. All files are read from the FileSystem API, except the file being checked.

Used to differentiate between scripts, to consider each script a separate project. Also used in formatted error messages. The source for the file. The editor location for the cursor if available. Is the preview compiler enabled. Indicates when the script was loaded into the editing environment, so that an 'unload' and 'reload' action will cause the script to be considered as a new project, so that references are re-resolved. Other flags for compilation. Add a default reference to the FSharp.Compiler.Interactive.Settings library. Use the implicit references from the .NET SDK. Set up compilation and analysis for .NET Framework scripts. Override the .NET SDK used for default references. An optional unique stamp for the options. An optional string used for tracing compiler operations associated with this request.

Get the FSharpProjectOptions implied by a set of command line arguments.

Used to differentiate between projects and for the base directory of the project. The command line arguments for the project build. Indicates when the script was loaded into the editing environment, Indicates that compilation should assume the EDITING define and related settings Indicates that compilation should assume the INTERACTIVE define and related settings so that an 'unload' and 'reload' action will cause the script to be considered as a new project, so that references are re-resolved.

Get the FSharpParsingOptions implied by a FSharpProjectOptions.

The overall options.

Get the FSharpParsingOptions implied by a set of command line arguments.

The command line arguments for the project build. Indicates that parsing should assume the INTERACTIVE define and related settings Indicates that compilation should assume the EDITING define and related settings

Get the FSharpParsingOptions implied by a set of command line arguments and list of source files.

Initial source files list. Additional files may be added during argv evaluation. The command line arguments for the project build. Indicates that parsing should assume the INTERACTIVE define and related settings Indicates that compilation should assume the EDITING define and related settings

Get semantic classification for a file.

The file name for the file. The project snapshot for which we want to get the semantic classification. An optional string used for tracing compiler operations associated with this request.

Get semantic classification for a file. All files are read from the FileSystem API, including the file being checked. Can cause a second type-check when `enablePartialTypeChecking` is true on the FSharpChecker.

The file name for the file. The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. An optional string used for tracing compiler operations associated with this request.

Like ParseFile, but uses results from the background builder. All files are read from the FileSystem API, including the file being checked.

The name for the file. The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. An optional string used for tracing compiler operations associated with this request.

Like CheckFileInProject, but uses the existing results from the background builder. All files are read from the FileSystem API, including the file being checked. Can cause a second type-check when `enablePartialTypeChecking` is true on the FSharpChecker.

The file name for the file. The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. An optional string used for tracing compiler operations associated with this request.

Optimized find references for a given symbol in a file of project. All files are read from the FileSystem API, including the file being checked. Can cause a second type-check when `enablePartialTypeChecking` is true on the FSharpChecker.

The file name for the file. The options for the project or script, used to determine active --define conditionals and other options relevant to parsing. The symbol to find all uses in the file. Default: true. If true, this call can invalidate the current state of project if the options have changed. If false, the current state of the project will be used. Default: false. Experimental feature that makes the operation faster. Requires FSharpChecker to be created with captureIdentifiersWhenParsing = true. An optional string used for tracing compiler operations associated with this request.

Create an instance of an FSharpChecker.

The optional size of the project checking cache. Keep the checked contents of projects. If false, do not keep full intermediate checking results from background checking suitable for returning from GetBackgroundCheckResultsForFileInProject. This reduces memory usage. An optional resolver for legacy MSBuild references An optional resolver to access the contents of .NET binaries in a memory-efficient way Indicate whether name suggestion should be enabled Indicate whether all symbol uses should be kept in background checking Indicates whether a table of symbol keys should be kept for background compilation Indicates whether to perform partial type checking. Cannot be set to true if keepAssemblyContents is true. If set to true, can cause duplicate type-checks when richer information on a file is needed, but can skip background type-checking entirely on implementation files with signature files. Indicates whether to resolve references in parallel. When set to true we create a set of all identifiers for each parsed file which can be used to speed up finding references. Default: FileSystem. You can use Custom source to provide a function that will return the source for a given file path instead of reading it from the file system. Note that with this option the FSharpChecker will also not monitor the file system for file changes. It will expect to be notified of changes via the NotifyFileChanged method. Default: false. Indicates whether we use a new experimental background compiler. This does not yet support all features Default: None. The cache sizes for the transparent compiler

Compile using the given flags. Source files names are resolved via the FileSystem API. The output file must be given by a -o flag. The first argument is ignored and can just be "fsc.exe". The method returns the collected diagnostics, and (possibly) a terminating exception.

The command line arguments for the project build. An optional string used for tracing compiler operations associated with this request.

Flush all caches and garbage collect

Clear the internal cache of the given projects.

The given project options. An optional string used for tracing compiler operations associated with this request.

Check a source code file, returning a handle to the results of the parse including the reconstructed types in the file. All files except the one being checked are read from the FileSystem API Note: returns NoAntecedent if the background builder is not yet done preparing the type check context for the file (e.g. loading references and parsing/checking files in the project that this file depends upon). In this case, the caller can either retry, or wait for FileTypeCheckStateIsDirty to be raised for this file.

The results of ParseFile for this file. The name of the file in the project whose source is being checked. An integer that can be used to indicate the version of the file. This will be returned by TryGetRecentCheckResultsForFile when looking up the file. The full source for the file. The options for the project or script. An optional string used for tracing compiler operations associated with this request.

Check a source code file, returning a handle to the results Note: all files except the one being checked are read from the FileSystem API Return FSharpCheckFileAnswer.Aborted if a parse tree was not available.

The results of ParseFile for this file. The name of the file in the project whose source is being checked. An integer that can be used to indicate the version of the file. This will be returned by TryGetRecentCheckResultsForFile when looking up the file. The full source for the file. The options for the project or script. An optional string used for tracing compiler operations associated with this request.

Used to parse and check F# source code.

Used for unit testing. Causes all steps of underlying incremental graph evaluation to cancel

Generalized Incremental Builder. This is exposed only for unit testing purposes.

Used for unit testing

Diagnostics handler for parsing & type checking while processing a single file

Create a new snapshot with given source files replacing files in this snapshot with the same name. Other files remain unchanged.

A snapshot of an F# project. This type contains all the necessary information for type checking a project.

An identifier of an F# project. This serves to identify the same project as it changes over time and enables us to clear obsolete data from caches.

A reference to an ILModuleReader.

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project. A function that calculates a last-modified timestamp for this reference. This will be used to determine if the reference is up-to-date. A function that creates an ILModuleReader for reading module data.

A reference to any portable executable, including F#. The stream is owned by this reference. The stream will be automatically disposed when there are no references to FSharpReferencedProject and is GC collected. Once the stream is evaluated, the function that constructs the stream will no longer be referenced by anything. If the stream evaluation throws an exception, it will be automatically handled.

A function that calculates a last-modified timestamp for this reference. This will be used to determine if the reference is up-to-date. A function that opens a Portable Executable data stream for reading.

A reference to an F# project. The physical data for it is stored/cached inside of the compiler service.

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project. Snapshot of the referenced F# project

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project.

Creates a reference for an F# project. The physical data for it is stored/cached inside of the compiler service.

The fully qualified path to the output of the referenced project. This should be the same value as the -r reference in the project options for this referenced project. The project snapshot for this F# project

Creates a copy of this project config with a new set of references

All required information for compiling a project except the source files and referenced projects. It's kept separate so it can be reused for different stages of a project snapshot and also between changes to the source files.

Project snapshot with file sources loaded

Project snapshot with filenames and versions given as initial input

A key including the public surface or signature for this snapshot

Version for parsing - doesn't include any references because they don't affect parsing (...right?)

A key for this snapshot but without file versions. So it will be the same across any in-file changes.

A key including the public surface or signature for this snapshot and the last file (even if it's not a signature file)

A full key for this snapshot, any change will cause this to change.

Create a new snapshot with source files only up to the given file name (inclusive)

Create a new snapshot with source files only up to the given index (inclusive)

Create a new snapshot with given source files replacing files in this snapshot with the same name. Other files remain unchanged.

Create a new snapshot with only source files at the given indexes

The newest last modified time of any file in this snapshot including the project file

Cache key for the project without source files

A snapshot of an F# project. The source file type can differ based on which stage of compilation the snapshot is used for.

An on-disk reference needed for project compilation.

A source file snapshot with parsed syntax tree

A source file snapshot with loaded source text.

A snapshot of an F# source file.

A common interface for an F# source file snapshot that can be used across all stages (lazy, source loaded, parsed)

If a symbol is an attribute check if given set of names contains its name without the Attribute suffix

Determine whether two (fileName,sourceText,options) keys should be identical w.r.t. resource usage

Determine whether two (fileName,sourceText,options) keys should be identical w.r.t. checking

Determine whether two (fileName,sourceText,options) keys should be identical w.r.t. parsing

Determine whether two (fileName,options) keys should be identical w.r.t. resource usage

Determine whether two (fileName,options) keys are identical w.r.t. affect on checking

A dependency graph for a project - it will contain all files in the project

A dependency graph for a single file - it will be missing files which this file does not depend on

Things we need to start parsing and checking files for a given project snapshot

Accumulated diagnostics, last file first

Disambiguation table for module names

Accumulated diagnostics, last file first

Disambiguation table for module names

Accumulated results of type checking. The minimum amount of state in order to continue type-checking following files.

Use this to query the workspace for information

Project management for this workspace

File management for this workspace

The `FSharpChecker` instance used by this workspace.

This type holds the current state of an F# workspace. It's mutable but thread-safe. It accepts updates to the state and can be queried for information about the workspace. The state can be built up incrementally by adding projects with one of the `Projects.AddOrUpdate` overloads. Updates to any project properties are done the same way. Each project is identified by its project file path and output path or by `FSharpProjectIdentifier`. When the same project is added again, it will be updated with the new information. Project references are discovered automatically as projects are added or updated. Updates to file contents are signaled through the `Files.Open`, `Files.Edit`, and `Files.Close` methods.

A map from project output path to project identifier.

Adds or updates an F# project in the workspace. Project is identified by the project file and output path or FSharpProjectIdentifier.

Interface for managing with projects in an F# workspace.

Open files in the editor.

Indicates that a file has been opened and has the given content. Any updates to the file should be done through `Files.Edit`.

Returns file paths for all source files of the given project.

Indicates that a file has been changed and now has the given content. If it wasn't previously open it is considered open now.

Indicates that a file has been closed. Any changes that were not saved to disk are undone and any further reading of the file's contents will be from the filesystem.

Interface for managing files in an F# workspace.

This type adds extension methods to the dependency graph to constraint the types and type relations that can be added to the graph. All unsafe operations that can throw at runtime, i.e. unpacking, are done here.

Complete project information

All project information except source files

All project information except source files and (in-memory) project references

Complete project information

All project information except source files

All project information except source files and (in-memory) project references

All project information except source files

Types for the workspace graph. These should not be accessed directly, rather through the extension methods in `WorkspaceDependencyGraphExtensions`.

Code to handle state management in an F# workspace.

The result ID of the diagnostics. This needs to be unique for each version of the document in order to be able to clear old diagnostics.

Code to handle quries to F# workspace

test if an arg is a path to fsc.exe

test if --vserrors flag is set

test if --test:ErrorRanges flag is set

do compilation as if args was argv to fsc.exe

in-proc version of fsc.exe

combined warning and error details

build issue details

build issue location

Part of LegacyHostedCompilerForTesting Yet another DiagnosticsLogger implementation, capturing the messages but only up to the maxerrors maximum

runs in-proc fsc compilation, returns array consisting of exit code, then compiler output

splits a provided command line string into argv array currently handles quotes, but not escaped quotes