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ProvidedTypes.fs
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ProvidedTypes.fs
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// Copyright (c) Microsoft Corporation, Tomas Petricek, Gustavo Guerra, and other contributors
//
// Licensed under the MIT License see LICENSE.md in https://github.com/fsprojects/FSharp.TypeProviders.SDK/
namespace ProviderImplementation.ProvidedTypes
#nowarn "1182"
// This file contains a set of helper types and methods for providing types in an implementation
// of ITypeProvider.
//
// This code has been modified and is appropriate for use in conjunction with the F# 4.x releases
open System
open System.Reflection
open System.Collections.Generic
open System.Diagnostics
open Microsoft.FSharp.Quotations
open Microsoft.FSharp.Quotations.Patterns
open Microsoft.FSharp.Core.CompilerServices
[<AutoOpen>]
module Utils =
let K x = (fun () -> x)
let isNull x = match x with null -> true | _ -> false
let isNil x = match x with [] -> true | _ -> false
let isEmpty x = match x with [| |] -> true | _ -> false
module Option =
let toObj x = match x with None -> null | Some x -> x
let ofObj x = match x with null -> None | _ -> Some x
[<Struct>]
type StructOption<'T> (hasValue: bool, value: 'T) =
member __.IsNone = not hasValue
member __.HasValue = hasValue
member __.Value = value
override __.ToString() = if hasValue then match box value with null -> "null" | x -> x.ToString() else "<none>"
type uoption<'T> = StructOption<'T>
let UNone<'T> = uoption<'T>(false, Unchecked.defaultof<'T>)
let USome v = uoption<'T>(true, v)
let (|UNone|USome|) (x:uoption<'T>) = if x.HasValue then USome x.Value else UNone
module StructOption =
let toObj x = match x with UNone -> null | USome x -> x
let ofObj x = match x with null -> UNone | x -> USome x
let tryFindMulti k map = match Map.tryFind k map with Some res -> res | None -> [| |]
let splitNameAt (nm:string) idx =
if idx < 0 then failwith "splitNameAt: idx < 0";
let last = nm.Length - 1
if idx > last then failwith "splitNameAt: idx > last";
(nm.Substring(0, idx)),
(if idx < last then nm.Substring (idx+1, last - idx) else "")
let splitILTypeName (nm:string) =
match nm.LastIndexOf '.' with
| -1 -> UNone, nm
| idx -> let a, b = splitNameAt nm idx in USome a, b
let joinILTypeName (nspace: string uoption) (nm:string) =
match nspace with
| UNone -> nm
| USome ns -> ns + "." + nm
let lengthsEqAndForall2 (arr1: 'T1[]) (arr2: 'T2[]) f =
(arr1.Length = arr2.Length) &&
(arr1, arr2) ||> Array.forall2 f
/// General implementation of .Equals(Type) logic for System.Type over symbol types. You can use this with other types too.
let rec eqTypes (ty1: Type) (ty2: Type) =
if Object.ReferenceEquals(ty1, ty2) then true
elif ty1.IsGenericTypeDefinition then ty2.IsGenericTypeDefinition && ty1.Equals(ty2)
elif ty1.IsGenericType then ty2.IsGenericType && not ty2.IsGenericTypeDefinition && eqTypes (ty1.GetGenericTypeDefinition()) (ty2.GetGenericTypeDefinition()) && lengthsEqAndForall2 (ty1.GetGenericArguments()) (ty2.GetGenericArguments()) eqTypes
elif ty1.IsArray then ty2.IsArray && ty1.GetArrayRank() = ty2.GetArrayRank() && eqTypes (ty1.GetElementType()) (ty2.GetElementType())
elif ty1.IsPointer then ty2.IsPointer && eqTypes (ty1.GetElementType()) (ty2.GetElementType())
elif ty1.IsByRef then ty2.IsByRef && eqTypes (ty1.GetElementType()) (ty2.GetElementType())
else ty1.Equals(box ty2)
/// General implementation of .Equals(obj) logic for System.Type over symbol types. You can use this with other types too.
let eqTypeObj (this: Type) (other: obj) =
match other with
| :? Type as otherTy -> eqTypes this otherTy
| _ -> false
/// General implementation of .IsAssignableFrom logic for System.Type, regardless of specific implementation
let isAssignableFrom (ty: Type) (otherTy: Type) =
eqTypes ty otherTy || (match otherTy.BaseType with null -> false | bt -> ty.IsAssignableFrom(bt))
/// General implementation of .IsSubclassOf logic for System.Type, regardless of specific implementation, with
/// an added hack to make the types usable with the FSharp.Core quotations implementation
let isSubclassOf (this: Type) (otherTy: Type) =
(this.IsClass && otherTy.IsClass && this.IsAssignableFrom(otherTy) && not (eqTypes this otherTy))
// The FSharp.Core implementation of FSharp.Quotations uses
// let isDelegateType (typ:Type) =
// if typ.IsSubclassOf(typeof<Delegate>) then ...
// This means even target type definitions must process the case where ``otherTy`` is typeof<Delegate> rather than
// the System.Delegate type for the target assemblies.
|| (match this.BaseType with
| null -> false
| bt -> bt.FullName = "System.MulticastDelegate" && (let fn = otherTy.FullName in fn = "System.Delegate" || fn = "System.MulticastDelegate" ))
/// General implementation of .GetAttributeFlags logic for System.Type over symbol types
let getAttributeFlagsImpl (ty: Type) =
if ty.IsGenericType then ty.GetGenericTypeDefinition().Attributes
elif ty.IsArray then typeof<int[]>.Attributes
elif ty.IsPointer then typeof<int>.MakePointerType().Attributes
elif ty.IsByRef then typeof<int>.MakeByRefType().Attributes
else Unchecked.defaultof<TypeAttributes>
let bindAll = BindingFlags.DeclaredOnly ||| BindingFlags.Public ||| BindingFlags.NonPublic ||| BindingFlags.Static ||| BindingFlags.Instance
let bindCommon = BindingFlags.DeclaredOnly ||| BindingFlags.Static ||| BindingFlags.Instance ||| BindingFlags.Public
let bindSome isStatic = BindingFlags.DeclaredOnly ||| BindingFlags.Public ||| BindingFlags.NonPublic ||| (if isStatic then BindingFlags.Static else BindingFlags.Instance)
let inline hasFlag e flag = (e &&& flag) <> enum 0
let memberBinds isType (bindingFlags: BindingFlags) isStatic isPublic =
(isType || hasFlag bindingFlags (if isStatic then BindingFlags.Static else BindingFlags.Instance)) &&
((hasFlag bindingFlags BindingFlags.Public && isPublic) || (hasFlag bindingFlags BindingFlags.NonPublic && not isPublic))
[<Interface>]
type ITypeBuilder =
abstract MakeGenericType: Type * Type[] -> Type
abstract MakeArrayType: Type -> Type
abstract MakeRankedArrayType: Type*int -> Type
abstract MakeByRefType: Type -> Type
abstract MakePointerType: Type -> Type
let defaultTypeBuilder =
{ new ITypeBuilder with
member __.MakeGenericType(typeDef, args) = typeDef.MakeGenericType(args)
member __.MakeArrayType(typ) = typ.MakeArrayType()
member __.MakeRankedArrayType(typ, rank) = typ.MakeArrayType(rank)
member __.MakeByRefType(typ) = typ.MakeByRefType()
member __.MakePointerType(typ) = typ.MakePointerType() }
let rec instType (typeBuilder: ITypeBuilder) inst (ty:Type) =
if isNull ty then null
elif ty.IsGenericType then
let typeArgs = Array.map (instType typeBuilder inst) (ty.GetGenericArguments())
typeBuilder.MakeGenericType(ty.GetGenericTypeDefinition(), typeArgs)
elif ty.HasElementType then
let ety : Type = instType typeBuilder inst (ty.GetElementType())
if ty.IsArray then
let rank = ty.GetArrayRank()
if rank = 1 then typeBuilder.MakeArrayType(ety)
else typeBuilder.MakeRankedArrayType(ety,rank)
elif ty.IsPointer then typeBuilder.MakePointerType(ety)
elif ty.IsByRef then typeBuilder.MakeByRefType(ety)
else ty
elif ty.IsGenericParameter then
let pos = ty.GenericParameterPosition
let (inst1: Type[], inst2: Type[]) = inst
if pos < inst1.Length then inst1.[pos]
elif pos < inst1.Length + inst2.Length then inst2.[pos - inst1.Length]
else ty
else ty
let mutable token = 0
let genToken() = token <- token + 1; token
/// Internal code of .NET expects the obj[] returned by GetCustomAttributes to be an Attribute[] even in the case of empty arrays
let emptyAttributes = (([| |]: Attribute[]) |> box |> unbox<obj[]>)
type Attributes<'T when 'T :> Attribute>() =
static let empty = ([| |] : 'T []) |> box |> unbox<obj[]>
static member Empty() = empty
type Attributes =
static member CreateEmpty (typ : Type) =
let gtype = typedefof<Attributes<_>>.MakeGenericType([| typ |])
// the Empty member is private due to the presence of the fsi file
// but when getting rid of the fsi for diagnostic purpose, it becomes public
// this is the reason for having both Public and NonPublic flag bellow
let gmethod = gtype.GetMethod("Empty", BindingFlags.Static ||| BindingFlags.Public ||| BindingFlags.NonPublic)
gmethod.Invoke(null, [||]) :?> obj array
let nonNull str x = if isNull x then failwithf "Null in '%s', stacktrace = '%s'" str Environment.StackTrace else x
let nonNone str x = match x with None -> failwithf "No value has been specified for '%s', stacktrace = '%s'" str Environment.StackTrace | Some v -> v
let patchOption v f = match v with None -> f() | Some _ -> failwithf "Already patched, stacktrace = '%s'" Environment.StackTrace
let notRequired this opname item =
let msg = sprintf "The operation '%s' on item '%s' should not be called on provided type, member or parameter of type '%O'. Stack trace:\n%s" opname item (this.GetType()) Environment.StackTrace
Debug.Assert (false, msg)
raise (NotSupportedException msg)
let adjustTypeAttributes isNested attrs =
let visibilityAttributes =
match attrs &&& TypeAttributes.VisibilityMask with
| TypeAttributes.Public when isNested -> TypeAttributes.NestedPublic
| TypeAttributes.NotPublic when isNested -> TypeAttributes.NestedAssembly
| TypeAttributes.NestedPublic when not isNested -> TypeAttributes.Public
| TypeAttributes.NestedAssembly
| TypeAttributes.NestedPrivate
| TypeAttributes.NestedFamORAssem
| TypeAttributes.NestedFamily
| TypeAttributes.NestedFamANDAssem when not isNested -> TypeAttributes.NotPublic
| a -> a
(attrs &&& ~~~TypeAttributes.VisibilityMask) ||| visibilityAttributes
type ConstructorInfo with
member m.GetDefinition() =
let dty = m.DeclaringType
if (dty.IsGenericType && not dty.IsGenericTypeDefinition) then
// Search through the original type definition looking for the one with a matching metadata token
let gdty = dty.GetGenericTypeDefinition()
gdty.GetConstructors(bindAll)
|> Array.tryFind (fun c -> c.MetadataToken = m.MetadataToken)
|> function Some m2 -> m2 | None -> failwithf "couldn't rebind %O::%s back to generic constructor definition via metadata token, stacktrace = '%s'" m.DeclaringType m.Name Environment.StackTrace
else
m
type PropertyInfo with
member m.GetDefinition() =
let dty = m.DeclaringType
if (dty.IsGenericType && not dty.IsGenericTypeDefinition) then
// Search through the original type definition looking for the one with a matching metadata token
let gdty = dty.GetGenericTypeDefinition()
gdty.GetProperties(bindAll)
|> Array.tryFind (fun c -> c.MetadataToken = m.MetadataToken)
|> function Some m2 -> m2 | None -> failwithf "couldn't rebind %O::%s back to generic property definition via metadata token" m.DeclaringType m.Name
else
m
member p.IsStatic = p.CanRead && p.GetGetMethod(true).IsStatic || p.CanWrite && p.GetSetMethod(true).IsStatic
member p.IsPublic = p.CanRead && p.GetGetMethod(true).IsPublic || p.CanWrite && p.GetSetMethod(true).IsPublic
type EventInfo with
member m.GetDefinition() =
let dty = m.DeclaringType
if (dty.IsGenericType && not dty.IsGenericTypeDefinition) then
// Search through the original type definition looking for the one with a matching metadata token
let gdty = dty.GetGenericTypeDefinition()
gdty.GetEvents(bindAll)
|> Array.tryFind (fun c -> c.MetadataToken = m.MetadataToken)
|> function Some m2 -> m2 | None -> failwithf "couldn't rebind %O::%s back to generic event definition via metadata token" m.DeclaringType m.Name
else
m
member p.IsStatic = p.GetAddMethod().IsStatic || p.GetRemoveMethod().IsStatic
member p.IsPublic = p.GetAddMethod().IsPublic || p.GetRemoveMethod().IsPublic
type FieldInfo with
member m.GetDefinition() =
let dty = m.DeclaringType
if (dty.IsGenericType && not dty.IsGenericTypeDefinition) then
// Search through the original type definition looking for the one with a matching metadata token
let gdty = dty.GetGenericTypeDefinition()
gdty.GetFields(bindAll)
|> Array.tryFind (fun c -> c.MetadataToken = m.MetadataToken)
|> function Some m2 -> m2 | None -> failwithf "couldn't rebind %O::%s back to generic event definition via metadata token" m.DeclaringType m.Name
else
m
type MethodInfo with
member m.GetDefinition() =
let dty = m.DeclaringType
if (m.IsGenericMethod && not dty.IsGenericType) then m.GetGenericMethodDefinition()
elif (m.IsGenericMethod && (not m.IsGenericMethodDefinition || not dty.IsGenericTypeDefinition)) ||
(dty.IsGenericType && not dty.IsGenericTypeDefinition) then
// Search through ALL the methods on the original type definition looking for the one
// with a matching metadata token
let gdty = if dty.IsGenericType then dty.GetGenericTypeDefinition() else dty
gdty.GetMethods(bindSome m.IsStatic)
|> Array.tryFind (fun c -> c.MetadataToken = m.MetadataToken)
|> function Some m2 -> m2 | None -> failwithf "couldn't rebind generic instantiation of %O::%s back to generic method definition via metadata token" m.DeclaringType m.Name
else
m
let canBindConstructor (bindingFlags: BindingFlags) (c: ConstructorInfo) =
hasFlag bindingFlags BindingFlags.Public && c.IsPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsPublic
let canBindMethod (bindingFlags: BindingFlags) (c: MethodInfo) =
hasFlag bindingFlags BindingFlags.Public && c.IsPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsPublic
let canBindProperty (bindingFlags: BindingFlags) (c: PropertyInfo) =
hasFlag bindingFlags BindingFlags.Public && c.IsPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsPublic
let canBindField (bindingFlags: BindingFlags) (c: FieldInfo) =
hasFlag bindingFlags BindingFlags.Public && c.IsPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsPublic
let canBindEvent (bindingFlags: BindingFlags) (c: EventInfo) =
hasFlag bindingFlags BindingFlags.Public && c.IsPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsPublic
let canBindNestedType (bindingFlags: BindingFlags) (c: Type) =
hasFlag bindingFlags BindingFlags.Public && c.IsNestedPublic || hasFlag bindingFlags BindingFlags.NonPublic && not c.IsNestedPublic
// We only want to return source types "typeof<Void>" values as _target_ types in one very specific location due to a limitation in the
// F# compiler code for multi-targeting.
let ImportProvidedMethodBaseAsILMethodRef_OnStack_HACK() =
let rec loop i =
if i > 9 then
false
else
let frame = StackFrame(i, true)
match frame.GetMethod() with
| null -> loop (i+1)
| m -> m.Name = "ImportProvidedMethodBaseAsILMethodRef" || loop (i+1)
loop 1
//--------------------------------------------------------------------------------
// UncheckedQuotations
// The FSharp.Core 2.0 - 4.0 (4.0.0.0 - 4.4.0.0) quotations implementation is overly strict in that it doesn't allow
// generation of quotations for cross-targeted FSharp.Core. Below we define a series of Unchecked methods
// implemented via reflection hacks to allow creation of various nodes when using a cross-targets FSharp.Core and
// mscorlib.dll.
//
// - Most importantly, these cross-targeted quotations can be provided to the F# compiler by a type provider.
// They are generally produced via the AssemblyReplacer.fs component through a process of rewriting design-time quotations that
// are not cross-targeted.
//
// - However, these quotation values are a bit fragile. Using existing FSharp.Core.Quotations.Patterns
// active patterns on these quotation nodes will generally work correctly. But using ExprShape.RebuildShapeCombination
// on these new nodes will not succed, nor will operations that build new quotations such as Expr.Call.
// Instead, use the replacement provided in this module.
//
// - Likewise, some operations in these quotation values like "expr.Type" may be a bit fragile, possibly returning non cross-targeted types in
// the result. However those operations are not used by the F# compiler.
[<AutoOpen>]
module UncheckedQuotations =
let qTy = typeof<Var>.Assembly.GetType("Microsoft.FSharp.Quotations.ExprConstInfo")
assert (not (isNull qTy))
let pTy = typeof<Var>.Assembly.GetType("Microsoft.FSharp.Quotations.PatternsModule")
assert (not (isNull pTy))
// These are handles to the internal functions that create quotation nodes of different sizes. Although internal,
// these function names have been stable since F# 2.0.
let mkFE0 = pTy.GetMethod("mkFE0", bindAll)
assert (not (isNull mkFE0))
let mkFE1 = pTy.GetMethod("mkFE1", bindAll)
assert (not (isNull mkFE1))
let mkFE2 = pTy.GetMethod("mkFE2", bindAll)
assert (mkFE2 |> isNull |> not)
let mkFE3 = pTy.GetMethod("mkFE3", bindAll)
assert (mkFE3 |> isNull |> not)
let mkFEN = pTy.GetMethod("mkFEN", bindAll)
assert (mkFEN |> isNull |> not)
// These are handles to the internal tags attached to quotation nodes of different sizes. Although internal,
// these function names have been stable since F# 2.0.
let newDelegateOp = qTy.GetMethod("NewNewDelegateOp", bindAll)
assert (newDelegateOp |> isNull |> not)
let instanceCallOp = qTy.GetMethod("NewInstanceMethodCallOp", bindAll)
assert (instanceCallOp |> isNull |> not)
let staticCallOp = qTy.GetMethod("NewStaticMethodCallOp", bindAll)
assert (staticCallOp |> isNull |> not)
let newObjectOp = qTy.GetMethod("NewNewObjectOp", bindAll)
assert (newObjectOp |> isNull |> not)
let newArrayOp = qTy.GetMethod("NewNewArrayOp", bindAll)
assert (newArrayOp |> isNull |> not)
let appOp = qTy.GetMethod("get_AppOp", bindAll)
assert (appOp |> isNull |> not)
let instancePropGetOp = qTy.GetMethod("NewInstancePropGetOp", bindAll)
assert (instancePropGetOp |> isNull |> not)
let staticPropGetOp = qTy.GetMethod("NewStaticPropGetOp", bindAll)
assert (staticPropGetOp |> isNull |> not)
let instancePropSetOp = qTy.GetMethod("NewInstancePropSetOp", bindAll)
assert (instancePropSetOp |> isNull |> not)
let staticPropSetOp = qTy.GetMethod("NewStaticPropSetOp", bindAll)
assert (staticPropSetOp |> isNull |> not)
let instanceFieldGetOp = qTy.GetMethod("NewInstanceFieldGetOp", bindAll)
assert (instanceFieldGetOp |> isNull |> not)
let staticFieldGetOp = qTy.GetMethod("NewStaticFieldGetOp", bindAll)
assert (staticFieldGetOp |> isNull |> not)
let instanceFieldSetOp = qTy.GetMethod("NewInstanceFieldSetOp", bindAll)
assert (instanceFieldSetOp |> isNull |> not)
let staticFieldSetOp = qTy.GetMethod("NewStaticFieldSetOp", bindAll)
assert (staticFieldSetOp |> isNull |> not)
let tupleGetOp = qTy.GetMethod("NewTupleGetOp", bindAll)
assert (tupleGetOp |> isNull |> not)
let letOp = qTy.GetMethod("get_LetOp", bindAll)
assert (letOp |> isNull |> not)
let forIntegerRangeLoopOp = qTy.GetMethod("get_ForIntegerRangeLoopOp", bindAll)
assert (forIntegerRangeLoopOp |> isNull |> not)
let whileLoopOp = qTy.GetMethod("get_WhileLoopOp", bindAll)
assert (whileLoopOp |> isNull |> not)
let ifThenElseOp = qTy.GetMethod("get_IfThenElseOp", bindAll)
assert (ifThenElseOp |> isNull |> not)
let newUnionCaseOp = qTy.GetMethod("NewNewUnionCaseOp", bindAll)
assert (newUnionCaseOp |> isNull |> not)
let newRecordOp = qTy.GetMethod("NewNewRecordOp", bindAll)
assert (newRecordOp |> isNull |> not)
type Microsoft.FSharp.Quotations.Expr with
static member NewDelegateUnchecked (ty: Type, vs: Var list, body: Expr) =
let e = List.foldBack (fun v acc -> Expr.Lambda(v, acc)) vs body
let op = newDelegateOp.Invoke(null, [| box ty |])
mkFE1.Invoke(null, [| box op; box e |]) :?> Expr
static member NewObjectUnchecked (cinfo: ConstructorInfo, args: Expr list) =
let op = newObjectOp.Invoke(null, [| box cinfo |])
mkFEN.Invoke(null, [| box op; box args |]) :?> Expr
static member NewArrayUnchecked (elementType: Type, elements: Expr list) =
let op = newArrayOp.Invoke(null, [| box elementType |])
mkFEN.Invoke(null, [| box op; box elements |]) :?> Expr
static member CallUnchecked (minfo: MethodInfo, args: Expr list) =
let op = staticCallOp.Invoke(null, [| box minfo |])
mkFEN.Invoke(null, [| box op; box args |]) :?> Expr
static member CallUnchecked (obj: Expr, minfo: MethodInfo, args: Expr list) =
let op = instanceCallOp.Invoke(null, [| box minfo |])
mkFEN.Invoke(null, [| box op; box (obj::args) |]) :?> Expr
static member ApplicationUnchecked (f: Expr, x: Expr) =
let op = appOp.Invoke(null, [| |])
mkFE2.Invoke(null, [| box op; box f; box x |]) :?> Expr
static member PropertyGetUnchecked (pinfo: PropertyInfo, args: Expr list) =
let op = staticPropGetOp.Invoke(null, [| box pinfo |])
mkFEN.Invoke(null, [| box op; box args |]) :?> Expr
static member PropertyGetUnchecked (obj: Expr, pinfo: PropertyInfo, ?args: Expr list) =
let args = defaultArg args []
let op = instancePropGetOp.Invoke(null, [| box pinfo |])
mkFEN.Invoke(null, [| box op; box (obj::args) |]) :?> Expr
static member PropertySetUnchecked (pinfo: PropertyInfo, value: Expr, ?args: Expr list) =
let args = defaultArg args []
let op = staticPropSetOp.Invoke(null, [| box pinfo |])
mkFEN.Invoke(null, [| box op; box (args@[value]) |]) :?> Expr
static member PropertySetUnchecked (obj: Expr, pinfo: PropertyInfo, value: Expr, ?args: Expr list) =
let args = defaultArg args []
let op = instancePropSetOp.Invoke(null, [| box pinfo |])
mkFEN.Invoke(null, [| box op; box (obj::(args@[value])) |]) :?> Expr
static member FieldGetUnchecked (pinfo: FieldInfo) =
let op = staticFieldGetOp.Invoke(null, [| box pinfo |])
mkFE0.Invoke(null, [| box op; |]) :?> Expr
static member FieldGetUnchecked (obj: Expr, pinfo: FieldInfo) =
let op = instanceFieldGetOp.Invoke(null, [| box pinfo |])
mkFE1.Invoke(null, [| box op; box obj |]) :?> Expr
static member FieldSetUnchecked (pinfo: FieldInfo, value: Expr) =
let op = staticFieldSetOp.Invoke(null, [| box pinfo |])
mkFE1.Invoke(null, [| box op; box value |]) :?> Expr
static member FieldSetUnchecked (obj: Expr, pinfo: FieldInfo, value: Expr) =
let op = instanceFieldSetOp.Invoke(null, [| box pinfo |])
mkFE2.Invoke(null, [| box op; box obj; box value |]) :?> Expr
static member TupleGetUnchecked (e: Expr, n:int) =
let op = tupleGetOp.Invoke(null, [| box e.Type; box n |])
mkFE1.Invoke(null, [| box op; box e |]) :?> Expr
static member LetUnchecked (v:Var, e: Expr, body:Expr) =
let lam = Expr.Lambda(v, body)
let op = letOp.Invoke(null, [| |])
mkFE2.Invoke(null, [| box op; box e; box lam |]) :?> Expr
static member ForIntegerRangeLoopUnchecked (loopVariable, startExpr:Expr, endExpr:Expr, body:Expr) =
let lam = Expr.Lambda(loopVariable, body)
let op = forIntegerRangeLoopOp.Invoke(null, [| |])
mkFE3.Invoke(null, [| box op; box startExpr; box endExpr; box lam |] ) :?> Expr
static member WhileLoopUnchecked (guard:Expr, body:Expr) =
let op = whileLoopOp.Invoke(null, [| |])
mkFE2.Invoke(null, [| box op; box guard; box body |] ):?> Expr
static member IfThenElseUnchecked (e:Expr, t:Expr, f:Expr) =
let op = ifThenElseOp.Invoke(null, [| |])
mkFE3.Invoke(null, [| box op; box e; box t; box f |] ):?> Expr
static member NewUnionCaseUnchecked (uci:Reflection.UnionCaseInfo, args:Expr list) =
let op = newUnionCaseOp.Invoke(null, [| box uci |])
mkFEN.Invoke(null, [| box op; box args |]) :?> Expr
static member NewRecordUnchecked (ty:Type, args:Expr list) =
let op = newRecordOp.Invoke(null, [| box ty |])
mkFEN.Invoke(null, [| box op; box args |]) :?> Expr
type Shape = Shape of (Expr list -> Expr)
let (|ShapeCombinationUnchecked|ShapeVarUnchecked|ShapeLambdaUnchecked|) e =
match e with
| NewObject (cinfo, args) ->
ShapeCombinationUnchecked (Shape (function args -> Expr.NewObjectUnchecked (cinfo, args)), args)
| NewArray (ty, args) ->
ShapeCombinationUnchecked (Shape (function args -> Expr.NewArrayUnchecked (ty, args)), args)
| NewDelegate (t, vars, expr) ->
ShapeCombinationUnchecked (Shape (function [expr] -> Expr.NewDelegateUnchecked (t, vars, expr) | _ -> invalidArg "expr" "invalid shape"), [expr])
| TupleGet (expr, n) ->
ShapeCombinationUnchecked (Shape (function [expr] -> Expr.TupleGetUnchecked (expr, n) | _ -> invalidArg "expr" "invalid shape"), [expr])
| Application (f, x) ->
ShapeCombinationUnchecked (Shape (function [f; x] -> Expr.ApplicationUnchecked (f, x) | _ -> invalidArg "expr" "invalid shape"), [f; x])
| Call (objOpt, minfo, args) ->
match objOpt with
| None -> ShapeCombinationUnchecked (Shape (function args -> Expr.CallUnchecked (minfo, args)), args)
| Some obj -> ShapeCombinationUnchecked (Shape (function (obj::args) -> Expr.CallUnchecked (obj, minfo, args) | _ -> invalidArg "expr" "invalid shape"), obj::args)
| PropertyGet (objOpt, pinfo, args) ->
match objOpt with
| None -> ShapeCombinationUnchecked (Shape (function args -> Expr.PropertyGetUnchecked (pinfo, args)), args)
| Some obj -> ShapeCombinationUnchecked (Shape (function (obj::args) -> Expr.PropertyGetUnchecked (obj, pinfo, args) | _ -> invalidArg "expr" "invalid shape"), obj::args)
| PropertySet (objOpt, pinfo, args, value) ->
match objOpt with
| None -> ShapeCombinationUnchecked (Shape (function (value::args) -> Expr.PropertySetUnchecked (pinfo, value, args) | _ -> invalidArg "expr" "invalid shape"), value::args)
| Some obj -> ShapeCombinationUnchecked (Shape (function (obj::value::args) -> Expr.PropertySetUnchecked (obj, pinfo, value, args) | _ -> invalidArg "expr" "invalid shape"), obj::value::args)
| FieldGet (objOpt, pinfo) ->
match objOpt with
| None -> ShapeCombinationUnchecked (Shape (function _ -> Expr.FieldGetUnchecked (pinfo)), [])
| Some obj -> ShapeCombinationUnchecked (Shape (function [obj] -> Expr.FieldGetUnchecked (obj, pinfo) | _ -> invalidArg "expr" "invalid shape"), [obj])
| FieldSet (objOpt, pinfo, value) ->
match objOpt with
| None -> ShapeCombinationUnchecked (Shape (function [value] -> Expr.FieldSetUnchecked (pinfo, value) | _ -> invalidArg "expr" "invalid shape"), [value])
| Some obj -> ShapeCombinationUnchecked (Shape (function [obj;value] -> Expr.FieldSetUnchecked (obj, pinfo, value) | _ -> invalidArg "expr" "invalid shape"), [obj; value])
| Let (var, value, body) ->
ShapeCombinationUnchecked (Shape (function [value;Lambda(var, body)] -> Expr.LetUnchecked(var, value, body) | _ -> invalidArg "expr" "invalid shape"), [value; Expr.Lambda(var, body)])
| ForIntegerRangeLoop (loopVar, first, last, body) ->
ShapeCombinationUnchecked (Shape (function [first; last; Lambda(loopVar, body)] -> Expr.ForIntegerRangeLoopUnchecked (loopVar, first, last, body) | _ -> invalidArg "expr" "invalid shape"), [first; last; Expr.Lambda(loopVar, body)])
| WhileLoop (cond, body) ->
ShapeCombinationUnchecked (Shape (function [cond; body] -> Expr.WhileLoopUnchecked (cond, body) | _ -> invalidArg "expr" "invalid shape"), [cond; body])
| IfThenElse (g, t, e) ->
ShapeCombinationUnchecked (Shape (function [g; t; e] -> Expr.IfThenElseUnchecked (g, t, e) | _ -> invalidArg "expr" "invalid shape"), [g; t; e])
| TupleGet (expr, i) ->
ShapeCombinationUnchecked (Shape (function [expr] -> Expr.TupleGetUnchecked (expr, i) | _ -> invalidArg "expr" "invalid shape"), [expr])
| ExprShape.ShapeCombination (comb, args) ->
ShapeCombinationUnchecked (Shape (fun args -> ExprShape.RebuildShapeCombination(comb, args)), args)
| ExprShape.ShapeVar v -> ShapeVarUnchecked v
| ExprShape.ShapeLambda (v, e) -> ShapeLambdaUnchecked (v, e)
let RebuildShapeCombinationUnchecked (Shape comb, args) = comb args
//--------------------------------------------------------------------------------
// Instantiated symbols
//
/// Represents the type constructor in a provided symbol type.
[<NoComparison>]
type ProvidedTypeSymbolKind =
| SDArray
| Array of int
| Pointer
| ByRef
| Generic of Type
| FSharpTypeAbbreviation of (Assembly * string * string[])
/// Represents an array or other symbolic type involving a provided type as the argument.
/// See the type provider spec for the methods that must be implemented.
/// Note that the type provider specification does not require us to implement pointer-equality for provided types.
type ProvidedTypeSymbol(kind: ProvidedTypeSymbolKind, typeArgs: Type list, typeBuilder: ITypeBuilder) as this =
inherit TypeDelegator()
let typeArgs = Array.ofList typeArgs
do this.typeImpl <- this
/// Substitute types for type variables.
override __.FullName =
match kind, typeArgs with
| ProvidedTypeSymbolKind.SDArray, [| arg |] -> arg.FullName + "[]"
| ProvidedTypeSymbolKind.Array _, [| arg |] -> arg.FullName + "[*]"
| ProvidedTypeSymbolKind.Pointer, [| arg |] -> arg.FullName + "*"
| ProvidedTypeSymbolKind.ByRef, [| arg |] -> arg.FullName + "&"
| ProvidedTypeSymbolKind.Generic gty, typeArgs -> gty.FullName + "[" + (typeArgs |> Array.map (fun arg -> arg.ToString()) |> String.concat ",") + "]"
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation (_, nsp, path), typeArgs -> String.concat "." (Array.append [| nsp |] path) + (match typeArgs with [| |] -> "" | _ -> typeArgs.ToString())
| _ -> failwith "unreachable"
/// Although not strictly required by the type provider specification, this is required when doing basic operations like FullName on
/// .NET symbolic types made from this type, e.g. when building Nullable<SomeProvidedType[]>.FullName
override __.DeclaringType =
match kind with
| ProvidedTypeSymbolKind.SDArray -> null
| ProvidedTypeSymbolKind.Array _ -> null
| ProvidedTypeSymbolKind.Pointer -> null
| ProvidedTypeSymbolKind.ByRef -> null
| ProvidedTypeSymbolKind.Generic gty -> gty.DeclaringType
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation _ -> null
override __.Name =
match kind, typeArgs with
| ProvidedTypeSymbolKind.SDArray, [| arg |] -> arg.Name + "[]"
| ProvidedTypeSymbolKind.Array _, [| arg |] -> arg.Name + "[*]"
| ProvidedTypeSymbolKind.Pointer, [| arg |] -> arg.Name + "*"
| ProvidedTypeSymbolKind.ByRef, [| arg |] -> arg.Name + "&"
| ProvidedTypeSymbolKind.Generic gty, _typeArgs -> gty.Name
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation (_, _, path), _ -> path.[path.Length-1]
| _ -> failwith "unreachable"
override __.BaseType =
match kind with
| ProvidedTypeSymbolKind.SDArray -> typeof<Array>
| ProvidedTypeSymbolKind.Array _ -> typeof<Array>
| ProvidedTypeSymbolKind.Pointer -> typeof<ValueType>
| ProvidedTypeSymbolKind.ByRef -> typeof<ValueType>
| ProvidedTypeSymbolKind.Generic gty ->
if isNull gty.BaseType then null else
instType typeBuilder (typeArgs, [| |]) gty.BaseType
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation _ -> typeof<obj>
override __.GetArrayRank() = (match kind with ProvidedTypeSymbolKind.Array n -> n | ProvidedTypeSymbolKind.SDArray -> 1 | _ -> failwithf "non-array type '%O'" this)
override __.IsValueTypeImpl() = (match kind with ProvidedTypeSymbolKind.Generic gtd -> gtd.IsValueType | _ -> false)
override __.IsArrayImpl() = (match kind with ProvidedTypeSymbolKind.Array _ | ProvidedTypeSymbolKind.SDArray -> true | _ -> false)
override __.IsByRefImpl() = (match kind with ProvidedTypeSymbolKind.ByRef _ -> true | _ -> false)
override __.IsPointerImpl() = (match kind with ProvidedTypeSymbolKind.Pointer _ -> true | _ -> false)
override __.IsPrimitiveImpl() = false
override __.IsGenericType = (match kind with ProvidedTypeSymbolKind.Generic _ -> true | _ -> false)
override this.GetGenericArguments() = (match kind with ProvidedTypeSymbolKind.Generic _ -> typeArgs | _ -> failwithf "non-generic type '%O'" this)
override this.GetGenericTypeDefinition() = (match kind with ProvidedTypeSymbolKind.Generic e -> e | _ -> failwithf "non-generic type '%O'" this)
override __.IsCOMObjectImpl() = false
override __.HasElementTypeImpl() = (match kind with ProvidedTypeSymbolKind.Generic _ -> false | _ -> true)
override __.GetElementType() = (match kind, typeArgs with (ProvidedTypeSymbolKind.Array _ | ProvidedTypeSymbolKind.SDArray | ProvidedTypeSymbolKind.ByRef | ProvidedTypeSymbolKind.Pointer), [| e |] -> e | _ -> failwithf "not an array, pointer or byref type")
override this.Assembly =
match kind, typeArgs with
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation (assembly, _nsp, _path), _ -> assembly
| ProvidedTypeSymbolKind.Generic gty, _ -> gty.Assembly
| ProvidedTypeSymbolKind.SDArray, [| arg |] -> arg.Assembly
| ProvidedTypeSymbolKind.Array _, [| arg |] -> arg.Assembly
| ProvidedTypeSymbolKind.Pointer, [| arg |] -> arg.Assembly
| ProvidedTypeSymbolKind.ByRef, [| arg |] -> arg.Assembly
| _ -> notRequired this "Assembly" this.FullName
override this.Namespace =
match kind, typeArgs with
| ProvidedTypeSymbolKind.SDArray, [| arg |] -> arg.Namespace
| ProvidedTypeSymbolKind.Array _, [| arg |] -> arg.Namespace
| ProvidedTypeSymbolKind.Pointer, [| arg |] -> arg.Namespace
| ProvidedTypeSymbolKind.ByRef, [| arg |] -> arg.Namespace
| ProvidedTypeSymbolKind.Generic gty, _ -> gty.Namespace
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation (_assembly, nsp, _path), _ -> nsp
| _ -> notRequired this "Namespace" this.FullName
override x.Module = x.Assembly.ManifestModule
override __.GetHashCode() =
match kind, typeArgs with
| ProvidedTypeSymbolKind.SDArray, [| arg |] -> 10 + hash arg
| ProvidedTypeSymbolKind.Array _, [| arg |] -> 163 + hash arg
| ProvidedTypeSymbolKind.Pointer, [| arg |] -> 283 + hash arg
| ProvidedTypeSymbolKind.ByRef, [| arg |] -> 43904 + hash arg
| ProvidedTypeSymbolKind.Generic gty, _ -> 9797 + hash gty + Array.sumBy hash typeArgs
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation _, _ -> 3092
| _ -> failwith "unreachable"
override this.Equals(other: obj) = eqTypeObj this other
override this.Equals(otherTy: Type) = eqTypes this otherTy
override this.IsAssignableFrom(otherTy: Type) = isAssignableFrom this otherTy
override this.IsSubclassOf(otherTy: Type) = isSubclassOf this otherTy
member __.Kind = kind
member __.Args = typeArgs
member __.IsFSharpTypeAbbreviation = match kind with FSharpTypeAbbreviation _ -> true | _ -> false
// For example, int<kg>
member __.IsFSharpUnitAnnotated = match kind with ProvidedTypeSymbolKind.Generic gtd -> not gtd.IsGenericTypeDefinition | _ -> false
override __.GetConstructorImpl(_bindingFlags, _binder, _callConventions, _types, _modifiers) = null
override this.GetMethodImpl(name, bindingFlags, _binderBinder, _callConvention, _types, _modifiers) =
match kind with
| Generic gtd ->
let ty = gtd.GetGenericTypeDefinition().MakeGenericType(typeArgs)
ty.GetMethod(name, bindingFlags)
| _ -> notRequired this "GetMethodImpl" this.FullName
override this.GetField(_name, _bindingFlags) = notRequired this "GetField" this.FullName
override this.GetPropertyImpl(_name, _bindingFlags, _binder, _returnType, _types, _modifiers) = notRequired this "GetPropertyImpl" this.FullName
override this.GetEvent(_name, _bindingFlags) = notRequired this "GetEvent" this.FullName
override this.GetNestedType(_name, _bindingFlags) = notRequired this "GetNestedType" this.FullName
override this.GetConstructors _bindingFlags = notRequired this "GetConstructors" this.FullName
override this.GetMethods _bindingFlags = notRequired this "GetMethods" this.FullName
override this.GetFields _bindingFlags = notRequired this "GetFields" this.FullName
override this.GetProperties _bindingFlags = notRequired this "GetProperties" this.FullName
override this.GetEvents _bindingFlags = notRequired this "GetEvents" this.FullName
override this.GetNestedTypes _bindingFlags = notRequired this "GetNestedTypes" this.FullName
override this.GetMembers _bindingFlags = notRequired this "GetMembers" this.FullName
override this.GetInterface(_name, _ignoreCase) = notRequired this "GetInterface" this.FullName
override this.GetInterfaces() = notRequired this "GetInterfaces" this.FullName
override this.GetAttributeFlagsImpl() = getAttributeFlagsImpl this
override this.UnderlyingSystemType =
match kind with
| ProvidedTypeSymbolKind.SDArray
| ProvidedTypeSymbolKind.Array _
| ProvidedTypeSymbolKind.Pointer
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation _
| ProvidedTypeSymbolKind.ByRef -> upcast this
| ProvidedTypeSymbolKind.Generic gty -> gty.UnderlyingSystemType
override __.GetCustomAttributesData() = ([| |] :> IList<_>)
override this.MemberType = notRequired this "MemberType" this.FullName
override this.GetMember(_name, _mt, _bindingFlags) = notRequired this "GetMember" this.FullName
override this.GUID = notRequired this "GUID" this.FullName
override this.InvokeMember(_name, _invokeAttr, _binder, _target, _args, _modifiers, _culture, _namedParameters) = notRequired this "InvokeMember" this.FullName
override this.AssemblyQualifiedName = notRequired this "AssemblyQualifiedName" this.FullName
override __.GetCustomAttributes(_inherit) = emptyAttributes
override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
override __.IsDefined(_attributeType, _inherit) = false
override this.MakeArrayType() = ProvidedTypeSymbol(ProvidedTypeSymbolKind.SDArray, [this], typeBuilder) :> Type
override this.MakeArrayType arg = ProvidedTypeSymbol(ProvidedTypeSymbolKind.Array arg, [this], typeBuilder) :> Type
#if NETCOREAPP
// See bug https://github.com/fsprojects/FSharp.TypeProviders.SDK/issues/236
override __.IsSZArray =
match kind with
| ProvidedTypeSymbolKind.SDArray -> true
| _ -> false
#endif
override __.MetadataToken =
match kind with
| ProvidedTypeSymbolKind.SDArray -> typeof<Array>.MetadataToken
| ProvidedTypeSymbolKind.Array _ -> typeof<Array>.MetadataToken
| ProvidedTypeSymbolKind.Pointer -> typeof<ValueType>.MetadataToken
| ProvidedTypeSymbolKind.ByRef -> typeof<ValueType>.MetadataToken
| ProvidedTypeSymbolKind.Generic gty -> gty.MetadataToken
| ProvidedTypeSymbolKind.FSharpTypeAbbreviation _ -> typeof<obj>.MetadataToken
override this.GetEvents() = this.GetEvents(BindingFlags.Public ||| BindingFlags.Instance ||| BindingFlags.Static) // Needed because TypeDelegator.cs provides a delegting implementation of this, and we are self-delegating
override this.ToString() = this.FullName
type ProvidedSymbolMethod(genericMethodDefinition: MethodInfo, parameters: Type[], typeBuilder: ITypeBuilder) =
inherit MethodInfo()
let convParam (p:ParameterInfo) =
{ new ParameterInfo() with
override __.Name = p.Name
override __.ParameterType = instType typeBuilder (parameters, [| |]) p.ParameterType
override __.Attributes = p.Attributes
override __.RawDefaultValue = p.RawDefaultValue
override __.GetCustomAttributesData() = p.GetCustomAttributesData()
}
override this.IsGenericMethod =
(if this.DeclaringType.IsGenericType then this.DeclaringType.GetGenericArguments().Length else 0) < parameters.Length
override this.GetGenericArguments() =
Seq.skip (if this.DeclaringType.IsGenericType then this.DeclaringType.GetGenericArguments().Length else 0) parameters |> Seq.toArray
override __.GetGenericMethodDefinition() = genericMethodDefinition
override __.DeclaringType = instType typeBuilder (parameters, [| |]) genericMethodDefinition.DeclaringType
override __.ToString() = "Method " + genericMethodDefinition.Name
override __.Name = genericMethodDefinition.Name
override __.MetadataToken = genericMethodDefinition.MetadataToken
override __.Attributes = genericMethodDefinition.Attributes
override __.CallingConvention = genericMethodDefinition.CallingConvention
override __.MemberType = genericMethodDefinition.MemberType
override this.IsDefined(_attributeType, _inherit): bool = notRequired this "IsDefined" genericMethodDefinition.Name
override __.ReturnType = instType typeBuilder (parameters, [| |]) genericMethodDefinition.ReturnType
override __.GetParameters() = genericMethodDefinition.GetParameters() |> Array.map convParam
override __.ReturnParameter = genericMethodDefinition.ReturnParameter |> convParam
override this.ReturnTypeCustomAttributes = notRequired this "ReturnTypeCustomAttributes" genericMethodDefinition.Name
override this.GetBaseDefinition() = notRequired this "GetBaseDefinition" genericMethodDefinition.Name
override this.GetMethodImplementationFlags() = notRequired this "GetMethodImplementationFlags" genericMethodDefinition.Name
override this.MethodHandle = notRequired this "MethodHandle" genericMethodDefinition.Name
override this.Invoke(_obj, _invokeAttr, _binder, _parameters, _culture) = notRequired this "Invoke" genericMethodDefinition.Name
override this.ReflectedType = notRequired this "ReflectedType" genericMethodDefinition.Name
override __.GetCustomAttributes(_inherit) = emptyAttributes
override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
//--------------------------------------------------------------------------------
// ProvidedMethod, ProvidedConstructor, ProvidedTypeDefinition and other provided objects
[<AutoOpen>]
module Misc =
let mkParamArrayCustomAttributeData() =
{ new CustomAttributeData() with
member __.Constructor = typeof<ParamArrayAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| |]
member __.NamedArguments = upcast [| |] }
let mkEditorHideMethodsCustomAttributeData() =
{ new CustomAttributeData() with
member __.Constructor = typeof<TypeProviderEditorHideMethodsAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| |]
member __.NamedArguments = upcast [| |] }
let mkAllowNullLiteralCustomAttributeData value =
{ new CustomAttributeData() with
member __.Constructor = typeof<AllowNullLiteralAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| CustomAttributeTypedArgument(typeof<bool>, value) |]
member __.NamedArguments = upcast [| |] }
/// This makes an xml doc attribute w.r.t. an amortized computation of an xml doc string.
/// It is important that the text of the xml doc only get forced when poking on the ConstructorArguments
/// for the CustomAttributeData object.
let mkXmlDocCustomAttributeDataLazy(lazyText: Lazy<string>) =
{ new CustomAttributeData() with
member __.Constructor = typeof<TypeProviderXmlDocAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| CustomAttributeTypedArgument(typeof<string>, lazyText.Force()) |]
member __.NamedArguments = upcast [| |] }
let mkXmlDocCustomAttributeData(s:string) = mkXmlDocCustomAttributeDataLazy (lazy s)
let mkDefinitionLocationAttributeCustomAttributeData(line:int, column:int, filePath:string) =
{ new CustomAttributeData() with
member __.Constructor = typeof<TypeProviderDefinitionLocationAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| |]
member __.NamedArguments =
upcast [| CustomAttributeNamedArgument(typeof<TypeProviderDefinitionLocationAttribute>.GetProperty("FilePath"), CustomAttributeTypedArgument(typeof<string>, filePath));
CustomAttributeNamedArgument(typeof<TypeProviderDefinitionLocationAttribute>.GetProperty("Line"), CustomAttributeTypedArgument(typeof<int>, line)) ;
CustomAttributeNamedArgument(typeof<TypeProviderDefinitionLocationAttribute>.GetProperty("Column"), CustomAttributeTypedArgument(typeof<int>, column))
|] }
let mkObsoleteAttributeCustomAttributeData(message:string, isError: bool) =
{ new CustomAttributeData() with
member __.Constructor = typeof<ObsoleteAttribute>.GetConstructors() |> Array.find (fun x -> x.GetParameters().Length = 2)
member __.ConstructorArguments = upcast [|CustomAttributeTypedArgument(typeof<string>, message) ; CustomAttributeTypedArgument(typeof<bool>, isError) |]
member __.NamedArguments = upcast [| |] }
let mkReflectedDefinitionCustomAttributeData() =
{ new CustomAttributeData() with
member __.Constructor = typeof<ReflectedDefinitionAttribute>.GetConstructors().[0]
member __.ConstructorArguments = upcast [| |]
member __.NamedArguments = upcast [| |] }
type CustomAttributesImpl(isTgt, customAttributesData) =
let customAttributes = ResizeArray<CustomAttributeData>()
let mutable hideObjectMethods = false
let mutable nonNullable = false
let mutable obsoleteMessage = None
let mutable xmlDocDelayed = None
let mutable xmlDocAlwaysRecomputed = None
let mutable hasParamArray = false
let mutable hasReflectedDefinition = false
// XML doc text that we only compute once, if any. This must _not_ be forced until the ConstructorArguments
// property of the custom attribute is foced.
let xmlDocDelayedText =
lazy
(match xmlDocDelayed with None -> assert false; "" | Some f -> f())
// Custom atttributes that we only compute once
let customAttributesOnce =
lazy
[| if not isTgt then
if hideObjectMethods then yield mkEditorHideMethodsCustomAttributeData()
if nonNullable then yield mkAllowNullLiteralCustomAttributeData false
match xmlDocDelayed with None -> () | Some _ -> customAttributes.Add(mkXmlDocCustomAttributeDataLazy xmlDocDelayedText)
match xmlDocAlwaysRecomputed with None -> () | Some f -> yield mkXmlDocCustomAttributeData (f())
match obsoleteMessage with None -> () | Some s -> customAttributes.Add(mkObsoleteAttributeCustomAttributeData s)
if hasParamArray then yield mkParamArrayCustomAttributeData()
if hasReflectedDefinition then yield mkReflectedDefinitionCustomAttributeData()
yield! customAttributes
yield! customAttributesData()|]
member __.AddDefinitionLocation(line:int, column:int, filePath:string) = customAttributes.Add(mkDefinitionLocationAttributeCustomAttributeData(line, column, filePath))
member __.AddObsolete(message: string, isError) = obsoleteMessage <- Some (message, isError)
member __.HasParamArray with get() = hasParamArray and set(v) = hasParamArray <- v
member __.HasReflectedDefinition with get() = hasReflectedDefinition and set(v) = hasReflectedDefinition <- v
member __.AddXmlDocComputed xmlDocFunction = xmlDocAlwaysRecomputed <- Some xmlDocFunction
member __.AddXmlDocDelayed xmlDocFunction = xmlDocDelayed <- Some xmlDocFunction
member __.AddXmlDoc xmlDoc = xmlDocDelayed <- Some (K xmlDoc)
member __.HideObjectMethods with get() = hideObjectMethods and set v = hideObjectMethods <- v
member __.NonNullable with get () = nonNullable and set v = nonNullable <- v
member __.AddCustomAttribute(attribute) = customAttributes.Add(attribute)
member __.GetCustomAttributesData() =
let attrs = customAttributesOnce.Force()
let attrsWithDocHack =
match xmlDocAlwaysRecomputed with
| None ->
attrs
| Some f ->
// Recomputed XML doc is evaluated on every call to GetCustomAttributesData() when in the IDE
[| for ca in attrs ->
if ca.Constructor.DeclaringType.Name = typeof<TypeProviderXmlDocAttribute>.Name then
{ new CustomAttributeData() with
member __.Constructor = ca.Constructor
member __.ConstructorArguments = upcast [| CustomAttributeTypedArgument(typeof<string>, f()) |]
member __.NamedArguments = upcast [| |] }
else ca |]
attrsWithDocHack :> IList<_>
type ProvidedStaticParameter(isTgt: bool, parameterName:string, parameterType:Type, parameterDefaultValue:obj option, customAttributesData) =
inherit ParameterInfo()
let customAttributesImpl = CustomAttributesImpl(isTgt, customAttributesData)
new (parameterName:string, parameterType:Type, ?parameterDefaultValue:obj) =
ProvidedStaticParameter(false, parameterName, parameterType, parameterDefaultValue, (K [| |]))
member __.AddXmlDocDelayed xmlDocFunction = customAttributesImpl.AddXmlDocDelayed xmlDocFunction
member __.AddXmlDocComputed xmlDocFunction = customAttributesImpl.AddXmlDocComputed xmlDocFunction
member __.AddXmlDoc xmlDoc = customAttributesImpl.AddXmlDoc xmlDoc
member __.ParameterDefaultValue = parameterDefaultValue
member __.BelongsToTargetModel = isTgt
override __.RawDefaultValue = defaultArg parameterDefaultValue null
override __.Attributes = if parameterDefaultValue.IsNone then enum 0 else ParameterAttributes.Optional
override __.Position = 0
override __.ParameterType = parameterType
override __.Name = parameterName
override __.GetCustomAttributes(_inherit) = emptyAttributes
override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
override __.GetCustomAttributesData() = customAttributesImpl.GetCustomAttributesData()
type ProvidedParameter(isTgt: bool, parameterName:string, attrs, parameterType:Type, optionalValue:obj option, customAttributesData) =
inherit ParameterInfo()
let customAttributesImpl = CustomAttributesImpl(isTgt, customAttributesData)
new (parameterName:string, parameterType:Type, ?isOut:bool, ?optionalValue:obj) =
ProvidedParameter(false, parameterName, parameterType, isOut, optionalValue)
new (_isTgt, parameterName:string, parameterType:Type, isOut:bool option, optionalValue:obj option) =
let isOut = defaultArg isOut false
let attrs = (if isOut then ParameterAttributes.Out else enum 0) |||
(match optionalValue with None -> enum 0 | Some _ -> ParameterAttributes.Optional ||| ParameterAttributes.HasDefault)
ProvidedParameter(false, parameterName, attrs, parameterType, optionalValue, K [| |])
member __.IsParamArray with set(v) = customAttributesImpl.HasParamArray <- v
member __.IsReflectedDefinition with set(v) = customAttributesImpl.HasReflectedDefinition <- v
member __.OptionalValue = optionalValue
member __.HasDefaultParameterValue = Option.isSome optionalValue
member __.BelongsToTargetModel = isTgt
member __.AddCustomAttribute(attribute) = customAttributesImpl.AddCustomAttribute(attribute)
override __.Name = parameterName
override __.ParameterType = parameterType
override __.Attributes = attrs
override __.RawDefaultValue = defaultArg optionalValue null
override __.GetCustomAttributesData() = customAttributesImpl.GetCustomAttributesData()
and ProvidedConstructor(isTgt: bool, attrs: MethodAttributes, parameters: ProvidedParameter[], invokeCode: (Expr list -> Expr), baseCall, isImplicitCtor, customAttributesData) =
inherit ConstructorInfo()
let parameterInfos = parameters |> Array.map (fun p -> p :> ParameterInfo)
let mutable baseCall = baseCall
let mutable declaringType : ProvidedTypeDefinition option = None
let mutable isImplicitCtor = isImplicitCtor
let mutable attrs = attrs
let isStatic() = hasFlag attrs MethodAttributes.Static