internal NamedTypeSymbol GetCallSiteDelegateType(
TypeSymbol loweredReceiver,
RefKind receiverRefKind,
ImmutableArray <TypeSymbol> loweredArguments,
ImmutableArray <RefKind> refKinds,
TypeSymbol loweredRight,
TypeSymbol resultType)
{
Debug.Assert(refKinds.IsDefaultOrEmpty || refKinds.Length == loweredArguments.Length);
var callSiteType = this.CallSite;
if (callSiteType.IsErrorType())
{
return(null);
}
var delegateSignature = MakeCallSiteDelegateSignature(callSiteType, loweredReceiver, loweredArguments, loweredRight, resultType);
bool returnsVoid = resultType.SpecialType == SpecialType.System_Void;
bool hasByRefs = receiverRefKind != RefKind.None || !refKinds.IsDefaultOrEmpty;
if (!hasByRefs)
{
var wkDelegateType = returnsVoid ?
WellKnownTypes.GetWellKnownActionDelegate(invokeArgumentCount: delegateSignature.Length) :
WellKnownTypes.GetWellKnownFunctionDelegate(invokeArgumentCount: delegateSignature.Length - 1);
if (wkDelegateType != WellKnownType.Unknown)
{
var delegateType = _compilation.GetWellKnownType(wkDelegateType);
if (delegateType != null && !delegateType.IsErrorType())
{
return(delegateType.Construct(delegateSignature));
}
}
}
BitVector byRefs;
if (hasByRefs)
{
byRefs = BitVector.Create(1 + (loweredReceiver != null ? 1 : 0) + loweredArguments.Length + (loweredRight != null ? 1 : 0));
int j = 1;
if (loweredReceiver != null)
{
byRefs[j++] = receiverRefKind != RefKind.None;
}
if (!refKinds.IsDefault)
{
for (int i = 0; i < refKinds.Length; i++, j++)
{
if (refKinds[i] != RefKind.None)
{
byRefs[j] = true;
}
}
}
}
else
{
byRefs = default(BitVector);
}
int parameterCount = delegateSignature.Length - (returnsVoid ? 0 : 1);
return(_compilation.AnonymousTypeManager.SynthesizeDelegate(parameterCount, byRefs, returnsVoid).Construct(delegateSignature));
}
internal NamedTypeSymbol GetDelegateType(
BoundExpression loweredReceiver,
RefKind receiverRefKind,
ImmutableArray <BoundExpression> loweredArguments,
ImmutableArray <RefKind> refKinds,
BoundExpression loweredRight,
TypeSymbol resultType)
{
Debug.Assert(refKinds.IsDefaultOrEmpty || refKinds.Length == loweredArguments.Length);
var callSiteType = _factory.WellKnownType(WellKnownType.core_runtime_compiler_CallSite);
if (callSiteType.IsErrorType())
{
return(null);
}
var delegateSignature = MakeCallSiteDelegateSignature(callSiteType, loweredReceiver, loweredArguments, loweredRight, resultType);
bool returnsVoid = resultType.SpecialType == SpecialType.System_Void;
bool hasByRefs = receiverRefKind != RefKind.None || !refKinds.IsDefaultOrEmpty;
if (!hasByRefs)
{
var wkDelegateType = returnsVoid ?
WellKnownTypes.GetWellKnownActionDelegate(invokeArgumentCount: delegateSignature.Length) :
WellKnownTypes.GetWellKnownFunctionDelegate(invokeArgumentCount: delegateSignature.Length - 1);
if (wkDelegateType != WellKnownType.Unknown)
{
var delegateType = _factory.Compilation.GetWellKnownType(wkDelegateType);
if (!delegateType.HasUseSiteError)
{
return(delegateType.Construct(delegateSignature));
}
}
}
BitVector byRefs;
if (hasByRefs)
{
byRefs = BitVector.Create(1 + (loweredReceiver != null ? 1 : 0) + loweredArguments.Length + (loweredRight != null ? 1 : 0));
int j = 1;
if (loweredReceiver != null)
{
byRefs[j++] = receiverRefKind != RefKind.None;
}
if (!refKinds.IsDefault)
{
for (int i = 0; i < refKinds.Length; i++, j++)
{
if (refKinds[i] != RefKind.None)
{
byRefs[j] = true;
}
}
}
}
else
{
byRefs = default(BitVector);
}
int parameterCount = delegateSignature.Length - (returnsVoid ? 0 : 1);
int generation = _factory.CompilationState.ModuleBuilderOpt.CurrentGenerationOrdinal;
var synthesizedType = _factory.Compilation.AnonymousTypeManager.SynthesizeDelegate(parameterCount, byRefs, returnsVoid, generation);
return(synthesizedType.Construct(delegateSignature));
}
