internal void ComputeReturnType()
{
if (_lazyReturnTypeAndDiagnostics != null)
{
return;
}
var diagnostics = DiagnosticBag.GetInstance();
RefKind refKind;
TypeSyntax returnTypeSyntax = _syntax.ReturnType.SkipRef(out refKind);
TypeSymbol returnType = _binder.BindType(returnTypeSyntax, diagnostics);
if (IsAsync &&
returnType.SpecialType != SpecialType.System_Void &&
!returnType.IsNonGenericTaskType(_binder.Compilation) &&
!returnType.IsGenericTaskType(_binder.Compilation))
{
// The return type of an async method must be void, Task or Task<T>
diagnostics.Add(ErrorCode.ERR_BadAsyncReturn, this.Locations[0]);
}
if (refKind != RefKind.None && returnType.SpecialType == SpecialType.System_Void)
{
Debug.Assert(returnTypeSyntax.HasErrors);
}
var value = new ReturnTypeAndDiagnostics(returnType, diagnostics.ToReadOnlyAndFree());
Interlocked.CompareExchange(ref _lazyReturnTypeAndDiagnostics, value, null);
}
internal void ComputeReturnType()
{
if (_lazyReturnTypeAndDiagnostics != null)
{
return;
}
var diagnostics = DiagnosticBag.GetInstance();
RefKind refKind;
TypeSyntax returnTypeSyntax = _syntax.ReturnType.SkipRef(out refKind);
TypeSymbol returnType = _binder.BindType(returnTypeSyntax, diagnostics);
if (IsAsync &&
returnType.SpecialType != SpecialType.System_Void &&
!returnType.IsNonGenericTaskType(_binder.Compilation) &&
!returnType.IsGenericTaskType(_binder.Compilation))
{
// The return type of an async method must be void, Task or Task<T>
diagnostics.Add(ErrorCode.ERR_BadAsyncReturn, this.Locations[0]);
}
if (refKind != RefKind.None && returnType.SpecialType == SpecialType.System_Void)
{
Debug.Assert(returnTypeSyntax.HasErrors);
}
var value = new ReturnTypeAndDiagnostics(returnType, diagnostics.ToReadOnlyAndFree());
Interlocked.CompareExchange(ref _lazyReturnTypeAndDiagnostics, value, null);
}