internal MarshalPseudoCustomAttributeData WithTranslatedTypes <TTypeSymbol, TArg>(
Func <TTypeSymbol, TArg, TTypeSymbol> translator,
TArg arg
) where TTypeSymbol : ITypeSymbolInternal
{
if (
_marshalType != Cci.Constants.UnmanagedType_SafeArray ||
_marshalTypeNameOrSymbol == null
)
{
return(this);
}
var translatedType = translator((TTypeSymbol)_marshalTypeNameOrSymbol, arg);
if ((object)translatedType == (object)_marshalTypeNameOrSymbol)
{
return(this);
}
var result = new MarshalPseudoCustomAttributeData();
result.SetMarshalAsSafeArray((Cci.VarEnum)_marshalArrayElementType, translatedType);
return(result);
}
MarshalPseudoCustomAttributeData IMarshalAsAttributeTarget.GetOrCreateData()
{
VerifySealed(expected: false);
if (_lazyMarshalAsData == null)
{
_lazyMarshalAsData = new MarshalPseudoCustomAttributeData();
SetDataStored();
}
return(_lazyMarshalAsData);
}
private static void DecodeMarshalAsArray(ref DecodeWellKnownAttributeArguments <TAttributeSyntax, TAttributeData, TAttributeLocation> arguments, CommonMessageProvider messageProvider, bool isFixed)
{
Debug.Assert((object)arguments.AttributeSyntaxOpt != null);
UnmanagedType?elementType = null;
int? elementCount = isFixed ? 1 : (int?)null;
short? parameterIndex = null;
bool hasErrors = false;
int position = 1;
foreach (System.Collections.Generic.KeyValuePair <string, TypedConstant> namedArg in arguments.Attribute.NamedArguments)
{
switch (namedArg.Key)
{
// array:
case "ArraySubType":
elementType = namedArg.Value.DecodeValue <UnmanagedType>(SpecialType.System_Enum);
// for some reason, Dev10 metadata writer disallows CustomMarshaler type as an element type of non-fixed arrays
if (!isFixed && elementType == Cci.Constants.UnmanagedType_CustomMarshaler ||
(int)elementType < 0 ||
(int)elementType > MarshalPseudoCustomAttributeData.MaxMarshalInteger)
{
messageProvider.ReportInvalidNamedArgument(arguments.Diagnostics, arguments.AttributeSyntaxOpt, position, arguments.Attribute.AttributeClass, namedArg.Key);
hasErrors = true;
}
break;
case "SizeConst":
elementCount = namedArg.Value.DecodeValue <int>(SpecialType.System_Int32);
if (elementCount < 0 || elementCount > MarshalPseudoCustomAttributeData.MaxMarshalInteger)
{
messageProvider.ReportInvalidNamedArgument(arguments.Diagnostics, arguments.AttributeSyntaxOpt, position, arguments.Attribute.AttributeClass, namedArg.Key);
hasErrors = true;
}
break;
case "SizeParamIndex":
if (isFixed)
{
goto case "SafeArraySubType";
}
parameterIndex = namedArg.Value.DecodeValue <short>(SpecialType.System_Int16);
if (parameterIndex < 0)
{
messageProvider.ReportInvalidNamedArgument(arguments.Diagnostics, arguments.AttributeSyntaxOpt, position, arguments.Attribute.AttributeClass, namedArg.Key);
hasErrors = true;
}
break;
case "SafeArraySubType":
messageProvider.ReportParameterNotValidForType(arguments.Diagnostics, arguments.AttributeSyntaxOpt, position);
hasErrors = true;
break;
// other parameters ignored with no error
}
position++;
}
if (!hasErrors)
{
MarshalPseudoCustomAttributeData data = arguments.GetOrCreateData <TWellKnownAttributeData>().GetOrCreateData();
if (isFixed)
{
data.SetMarshalAsFixedArray(elementType, elementCount);
}
else
{
data.SetMarshalAsArray(elementType, elementCount, parameterIndex);
}
}
}
