private int GetConstructionOrder(MetadataType type)
{
// For EagerOrderedStaticConstructorAttribute, order is defined by an integer.
// For the other case (EagerStaticClassConstructionAttribute), order is defined
// implicitly.
type = (MetadataType)type.GetTypeDefinition();
EcmaType ecmaType = (EcmaType)type;
MetadataReader metadataReader = ecmaType.MetadataReader;
foreach (var attributeHandle in metadataReader.GetTypeDefinition(ecmaType.Handle).GetCustomAttributes())
{
EntityHandle attributeType, attributeCtor;
if (!metadataReader.GetAttributeTypeAndConstructor(attributeHandle,
out attributeType, out attributeCtor))
{
continue;
}
StringHandle namespaceHandle, nameHandle;
if (!metadataReader.GetAttributeTypeNamespaceAndName(attributeType,
out namespaceHandle, out nameHandle))
{
continue;
}
if (metadataReader.StringComparer.Equals(namespaceHandle, "System.Runtime.CompilerServices") &&
metadataReader.StringComparer.Equals(nameHandle, "EagerOrderedStaticConstructorAttribute"))
{
var attributeBlob = metadataReader.GetCustomAttributeBlobReader(attributeHandle);
return(attributeBlob.ReadInt32());
}
}
Debug.Assert(type.HasCustomAttribute("System.Runtime.CompilerServices", "EagerStaticClassConstructionAttribute"));
// RhBind on .NET Native for UWP will sort these based on static dependencies of the .cctors.
// We could probably do the same, but this attribute is pretty much deprecated in favor of
// EagerOrderedStaticConstructorAttribute that has explicit order. The remaining uses of
// the unordered one don't appear to have dependencies, so sorting them all before the
// ordered ones should do.
return(-1);
}