/// <summary>
/// Check arguments of custom attribute.
/// </summary>
/// <param name="attributeArgs">The list of custom attribute arguments (types).</param>
private void CheckCustomAttributes(IEnumerable <CustomAttributeArgument> attributeArgs)
{
IMetadataScope forwardedFrom;
foreach (CustomAttributeArgument customAttributeArgument in attributeArgs)
{
TypeDefinition typeDefinition = customAttributeArgument.Value is TypeReference
? (customAttributeArgument.Value as TypeReference).Resolve(out forwardedFrom)
: customAttributeArgument.Type.Resolve(out forwardedFrom);
_sharedData.RemoveFromCandidates(forwardedFrom);
if (typeDefinition != null && !_sharedData.IsUsedTypeExists(typeDefinition.AssemblyQualifiedName()))
{
_sharedData.RemoveFromCandidates(typeDefinition.Scope);
if (!_sharedData.HasCandidateReferences)
{
return;
}
_sharedData.AddToUsedTypes(typeDefinition.AssemblyQualifiedName());
_interfaceCheckHelper.Check(typeDefinition, _sharedData);
}
}
}
private void ResolveTypeReference(TypeReference paramTypeRef, CheckerSharedData sharedData)
{
var typeRef = GetNativeTypeOfTypeReference(paramTypeRef);
if (typeRef == null || typeRef.IsGenericParameter)
{
return;
}
IMetadataScope forwardedFrom;
var typeDef = typeRef.Resolve(out forwardedFrom);
sharedData.RemoveFromCandidates(forwardedFrom);
if (typeDef != null && !sharedData.IsUsedTypeExists(typeDef.AssemblyQualifiedName()))
{
sharedData.RemoveFromCandidates(typeDef.Scope);
_classCheckHeper.Check(typeDef, sharedData);
_interfaceCheckHelper.Check(typeDef, sharedData);
}
else if (typeDef == null)
{
sharedData.AddToUsedTypes(typeRef.AssemblyQualifiedName());
sharedData.RemoveFromCandidates(typeRef.Scope);
}
// check generic parameters of the type.
if (typeRef is GenericInstanceType && ((GenericInstanceType)typeRef).HasGenericArguments)
{
var genericType = ((GenericInstanceType)typeRef);
foreach (var genericArg in genericType.GenericArguments)
{
ResolveTypeReference(genericArg, sharedData);
}
}
}