public override ImmutableArray <CSharpAttributeData> GetAttributes()
{
if (_lazyCustomAttributes.IsDefault)
{
var containingPEModuleSymbol = _containingType.ContainingPEModule;
// Could this possibly be an extension method?
bool alreadySet = _packedFlags.IsExtensionMethodIsPopulated;
bool checkForExtension = alreadySet
? _packedFlags.IsExtensionMethod
: this.MethodKind == MethodKind.Ordinary &&
IsValidExtensionMethodSignature() &&
_containingType.MightContainExtensionMethods;
bool isExtensionMethod = false;
if (checkForExtension)
{
containingPEModuleSymbol.LoadCustomAttributesFilterExtensions(_handle,
ref _lazyCustomAttributes,
out isExtensionMethod);
}
else
{
containingPEModuleSymbol.LoadCustomAttributes(_handle,
ref _lazyCustomAttributes);
}
if (!alreadySet)
{
_packedFlags.InitializeIsExtensionMethod(isExtensionMethod);
}
}
return(_lazyCustomAttributes);
}
public override ImmutableArray <CSharpAttributeData> GetAttributes()
{
if (!_packedFlags.IsCustomAttributesPopulated)
{
// Compute the value
var attributeData = default(ImmutableArray <CSharpAttributeData>);
var containingPEModuleSymbol = _containingType.ContainingPEModule;
// Could this possibly be an extension method?
bool alreadySet = _packedFlags.IsExtensionMethodIsPopulated;
bool checkForExtension = alreadySet
? _packedFlags.IsExtensionMethod
: this.MethodKind == MethodKind.Ordinary &&
IsValidExtensionMethodSignature() &&
_containingType.MightContainExtensionMethods;
bool isExtensionMethod = false;
if (checkForExtension)
{
containingPEModuleSymbol.LoadCustomAttributesFilterExtensions(_handle,
ref attributeData,
out isExtensionMethod);
}
else
{
containingPEModuleSymbol.LoadCustomAttributes(_handle,
ref attributeData);
}
if (!alreadySet)
{
_packedFlags.InitializeIsExtensionMethod(isExtensionMethod);
}
// Store the result in uncommon fields only if it's not empty.
Debug.Assert(!attributeData.IsDefault);
if (!attributeData.IsEmpty)
{
attributeData = InterlockedOperations.Initialize(ref AccessUncommonFields()._lazyCustomAttributes, attributeData);
}
_packedFlags.SetIsCustomAttributesPopulated();
return(attributeData);
}
// Retrieve cached or inferred value.
var uncommonFields = _uncommonFields;
if (uncommonFields == null)
{
return(ImmutableArray <CSharpAttributeData> .Empty);
}
else
{
var attributeData = uncommonFields._lazyCustomAttributes;
return(attributeData.IsDefault
? InterlockedOperations.Initialize(ref uncommonFields._lazyCustomAttributes, ImmutableArray <CSharpAttributeData> .Empty)
: attributeData);
}
}
