internal SynthesizedDelegateSymbol SynthesizeDelegate(int parameterCount, RefKindVector refKinds, bool returnsVoid, int generation)
{
// parameterCount doesn't include return type
Debug.Assert(refKinds.IsNull || parameterCount == refKinds.Capacity - (returnsVoid ? 0 : 1));
var key = new SynthesizedDelegateKey(parameterCount, refKinds, returnsVoid, generation);
SynthesizedDelegateValue result;
if (this.SynthesizedDelegates.TryGetValue(key, out result))
{
return(result.Delegate);
}
// NOTE: the newly created template may be thrown away if another thread wins
var synthesizedDelegate = new SynthesizedDelegateSymbol(
this.Compilation.Assembly.GlobalNamespace,
key.MakeTypeName(),
this.System_Object,
Compilation.GetSpecialType(SpecialType.System_IntPtr),
returnsVoid ? Compilation.GetSpecialType(SpecialType.System_Void) : null,
parameterCount,
refKinds);
return(this.SynthesizedDelegates.GetOrAdd(key, new SynthesizedDelegateValue(this, synthesizedDelegate)).Delegate);
}
internal InvokeMethod(
SynthesizedDelegateSymbol containingType,
BitVector byRefParameters,
TypeSymbol voidReturnTypeOpt
)
{
var typeParams = containingType.TypeParameters;
_containingType = containingType;
// if we are given Void type the method returns Void, otherwise its return type is the last type parameter of the delegate:
_returnType = voidReturnTypeOpt ?? typeParams.Last();
var parameters = new ParameterSymbol[
typeParams.Length - ((object)voidReturnTypeOpt != null ? 0 : 1)
];
for (int i = 0; i < parameters.Length; i++)
{
// we don't need to distinguish between out and ref since this is an internal synthesized symbol:
var refKind =
!byRefParameters.IsNull && byRefParameters[i] ? RefKind.Ref : RefKind.None;
parameters[i] = SynthesizedParameterSymbol.Create(
this,
TypeWithAnnotations.Create(typeParams[i]),
i,
refKind
);
}
_parameters = parameters.AsImmutableOrNull();
}
public SynthesizedDelegateValue(
AnonymousTypeManager manager,
SynthesizedDelegateSymbol @delegate
)
{
Debug.Assert(manager != null && (object)@delegate != null);
this.Manager = manager;
this.Delegate = @delegate;
}
private SynthesizedDelegateValue CreatePlaceholderSynthesizedDelegateValue(string name, RefKindVector refKinds, bool returnsVoid, int parameterCount)
{
var symbol = new SynthesizedDelegateSymbol(
this.Compilation.Assembly.GlobalNamespace,
MetadataHelpers.InferTypeArityAndUnmangleMetadataName(name, out _),
this.System_Object,
Compilation.GetSpecialType(SpecialType.System_IntPtr),
returnsVoid ? Compilation.GetSpecialType(SpecialType.System_Void) : null,
parameterCount,
refKinds);
return(new SynthesizedDelegateValue(this, symbol));
}
internal InvokeMethod(SynthesizedDelegateSymbol containingType, BitVector byRefParameters, TypeSymbol voidReturnTypeOpt)
{
var typeParams = containingType.TypeParameters;
_containingType = containingType;
// if we are given Void type the method returns Void, otherwise its return type is the last type parameter of the delegate:
_returnType = voidReturnTypeOpt ?? typeParams.Last();
var parameters = new ParameterSymbol[typeParams.Length - ((object)voidReturnTypeOpt != null ? 0 : 1)];
for (int i = 0; i < parameters.Length; i++)
{
// we don't need to distinguish between out and ref since this is an internal synthesized symbol:
var refKind = !byRefParameters.IsNull && byRefParameters[i] ? RefKind.Ref : RefKind.None;
parameters[i] = SynthesizedParameterSymbol.Create(this, typeParams[i], i, refKind);
}
_parameters = parameters.AsImmutableOrNull();
}