private void InitEnumData()
{
if (!IsEnum)
{
throw new InvalidOperationException("Type is not an Enum.");
}
_enumData = new EnumData();
MetaDataImport import = DesktopModule?.GetMetadataImport();
if (import == null)
{
return;
}
IntPtr hnd = IntPtr.Zero;
List <string> names = new List <string>();
foreach (int token in import.EnumerateFields((int)_token))
{
if (import.GetFieldProps(token, out string name, out FieldAttributes attr, out IntPtr ppvSigBlob, out int pcbSigBlob, out int pdwCPlusTypeFlag, out IntPtr ppValue))
{
if ((int)attr == 0x606 && name == "value__")
{
SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob);
if (parser.GetCallingConvInfo(out int sigType) && parser.GetElemType(out int elemType))
{
_enumData.ElementType = (ClrElementType)elemType;
}
}
// public, static, literal, has default
int intAttr = (int)attr;
if ((int)attr == 0x8056)
{
names.Add(name);
SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob);
parser.GetCallingConvInfo(out int ccinfo);
parser.GetElemType(out int elemType);
Type type = ClrRuntime.GetTypeForElementType((ClrElementType)pdwCPlusTypeFlag);
if (type != null)
{
object o = System.Runtime.InteropServices.Marshal.PtrToStructure(ppValue, type);
_enumData.NameToValue[name] = o;
_enumData.ValueToName[o] = name;
}
}
}
}
}
