protected sealed override void MethodChecks(DiagnosticBag diagnostics)
{
Debug.Assert(_lazyParameters.IsDefault != _lazyReturnType.HasType);
// CONSIDER: currently, we're copying the custom modifiers of the event overridden
// by this method's associated event (by using the associated event's type, which is
// copied from the overridden event). It would be more correct to copy them from
// the specific accessor that this method is overriding (as in SourceMemberMethodSymbol).
if (_lazyReturnType.IsDefault)
{
CSharpCompilation compilation = this.DeclaringCompilation;
Debug.Assert(compilation != null);
// NOTE: LazyMethodChecks calls us within a lock, so we use regular assignments,
// rather than Interlocked.CompareExchange.
if (_event.IsWindowsRuntimeEvent)
{
TypeSymbol eventTokenType = compilation.GetWellKnownType(WellKnownType.System_Runtime_InteropServices_WindowsRuntime_EventRegistrationToken);
Binder.ReportUseSiteDiagnostics(eventTokenType, diagnostics, this.Location);
if (this.MethodKind == MethodKind.EventAdd)
{
// EventRegistrationToken add_E(EventDelegate d);
// Leave the returns void bit in this.flags false.
_lazyReturnType = TypeWithAnnotations.Create(eventTokenType);
var parameter = new SynthesizedAccessorValueParameterSymbol(this, _event.TypeWithAnnotations, 0);
_lazyParameters = ImmutableArray.Create <ParameterSymbol>(parameter);
}
else
{
Debug.Assert(this.MethodKind == MethodKind.EventRemove);
// void remove_E(EventRegistrationToken t);
TypeSymbol voidType = compilation.GetSpecialType(SpecialType.System_Void);
Binder.ReportUseSiteDiagnostics(voidType, diagnostics, this.Location);
_lazyReturnType = TypeWithAnnotations.Create(voidType);
this.SetReturnsVoid(returnsVoid: true);
var parameter = new SynthesizedAccessorValueParameterSymbol(this, TypeWithAnnotations.Create(eventTokenType), 0);
_lazyParameters = ImmutableArray.Create <ParameterSymbol>(parameter);
}
}
else
{
// void add_E(EventDelegate d);
// void remove_E(EventDelegate d);
TypeSymbol voidType = compilation.GetSpecialType(SpecialType.System_Void);
Binder.ReportUseSiteDiagnostics(voidType, diagnostics, this.Location);
_lazyReturnType = TypeWithAnnotations.Create(voidType);
this.SetReturnsVoid(returnsVoid: true);
var parameter = new SynthesizedAccessorValueParameterSymbol(this, _event.TypeWithAnnotations, 0);
_lazyParameters = ImmutableArray.Create <ParameterSymbol>(parameter);
}
}
}
protected sealed override void MethodChecks(DiagnosticBag diagnostics)
{
Debug.Assert(this.lazyParameters.IsDefault == ((object)this.lazyReturnType == null));
// CONSIDER: currently, we're copying the custom modifiers of the event overridden
// by this method's associated event (by using the associated event's type, which is
// copied from the overridden event). It would be more correct to copy them from
// the specific accessor that this method is overriding (as in SourceMemberMethodSymbol).
if ((object)this.lazyReturnType == null)
{
Debug.Assert((this.flags & MakeReturnsVoidFlags(returnsVoid: true)) == 0, "Default should be false so we never have to clear the bit.");
CSharpCompilation compilation = this.DeclaringCompilation;
Debug.Assert(compilation != null);
// NOTE: LazyMethodChecks calls us within a lock, so we use regular assignments,
// rather than Interlocked.CompareExchange.
if ([email protected])
{
TypeSymbol eventTokenType = compilation.GetWellKnownType(WellKnownType.System_Runtime_InteropServices_WindowsRuntime_EventRegistrationToken);
Binder.ReportUseSiteDiagnostics(eventTokenType, diagnostics, this.Location);
if (this.MethodKind == MethodKind.EventAdd)
{
// EventRegistrationToken add_E(EventDelegate d);
// Leave the returns void bit in this.flags false.
this.lazyReturnType = eventTokenType;
var parameter = new SynthesizedAccessorValueParameterSymbol(this, [email protected], 0, ImmutableArray<CustomModifier>.Empty);
this.lazyParameters = ImmutableArray.Create<ParameterSymbol>(parameter);
}
else
{
Debug.Assert(this.MethodKind == MethodKind.EventRemove);
// void remove_E(EventRegistrationToken t);
TypeSymbol voidType = compilation.GetSpecialType(SpecialType.System_Void);
Binder.ReportUseSiteDiagnostics(voidType, diagnostics, this.Location);
this.lazyReturnType = voidType;
this.flags |= MakeReturnsVoidFlags(returnsVoid: true);
var parameter = new SynthesizedAccessorValueParameterSymbol(this, eventTokenType, 0, ImmutableArray<CustomModifier>.Empty);
this.lazyParameters = ImmutableArray.Create<ParameterSymbol>(parameter);
}
}
else
{
// void add_E(EventDelegate d);
// void remove_E(EventDelegate d);
TypeSymbol voidType = compilation.GetSpecialType(SpecialType.System_Void);
Binder.ReportUseSiteDiagnostics(voidType, diagnostics, this.Location);
this.lazyReturnType = voidType;
this.flags |= MakeReturnsVoidFlags(returnsVoid: true);
var parameter = new SynthesizedAccessorValueParameterSymbol(this, [email protected], 0, ImmutableArray<CustomModifier>.Empty);
this.lazyParameters = ImmutableArray.Create<ParameterSymbol>(parameter);
}
}
}
