private void InitEnumData() { if (!IsEnum) throw new InvalidOperationException("Type is not an Enum."); _enumData = new EnumData(); ICorDebug.IMetadataImport import = null; if (DesktopModule != null) import = DesktopModule.GetMetadataImport(); if (import == null) { _enumData = new EnumData(); return; } IntPtr hnd = IntPtr.Zero; int tokens; List<string> names = new List<string>(); int[] fields = new int[64]; do { int res = import.EnumFields(ref hnd, (int)_token, fields, fields.Length, out tokens); for (int i = 0; i < tokens; ++i) { FieldAttributes attr; int mdTypeDef, pchField, pcbSigBlob, pdwCPlusTypeFlag, pcchValue; IntPtr ppvSigBlob, ppValue = IntPtr.Zero; StringBuilder builder = new StringBuilder(256); res = import.GetFieldProps(fields[i], out mdTypeDef, builder, builder.Capacity, out pchField, out attr, out ppvSigBlob, out pcbSigBlob, out pdwCPlusTypeFlag, out ppValue, out pcchValue); if ((int)attr == 0x606 && builder.ToString() == "value__") { SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob); int sigType, elemType; if (parser.GetCallingConvInfo(out sigType) && parser.GetElemType(out elemType)) _enumData.ElementType = (ClrElementType)elemType; } // public, static, literal, has default int intAttr = (int)attr; if ((int)attr == 0x8056) { string name = builder.ToString(); names.Add(name); int ccinfo; SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob); parser.GetCallingConvInfo(out ccinfo); int elemType; parser.GetElemType(out 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; } } } } while (fields.Length == tokens); import.CloseEnum(hnd); }
public DesktopInstanceField(DesktopGCHeap heap, IFieldData data, string name, FieldAttributes attributes, IntPtr sig, int sigLen) { _name = name; _field = data; _attributes = attributes; ulong mt = data.TypeMethodTable; if (mt != 0) _type = (BaseDesktopHeapType)heap.GetTypeByTypeHandle(mt, 0); if (_type == null) { if (sig != IntPtr.Zero && sigLen > 0) { SigParser sigParser = new SigParser(sig, sigLen); bool res; int sigType, etype = 0; if (res = sigParser.GetCallingConvInfo(out sigType)) Debug.Assert(sigType == SigParser.IMAGE_CEE_CS_CALLCONV_FIELD); res = res && sigParser.SkipCustomModifiers(); res = res && sigParser.GetElemType(out etype); if (res) { ClrElementType type = (ClrElementType)etype; if (type == ClrElementType.Array) { res = sigParser.PeekElemType(out etype); res = res && sigParser.SkipExactlyOne(); int ranks = 0; res = res && sigParser.GetData(out ranks); if (res) _type = heap.GetArrayType((ClrElementType)etype, ranks, null); } else if (type == ClrElementType.SZArray) { res = sigParser.PeekElemType(out etype); type = (ClrElementType)etype; if (DesktopRuntimeBase.IsObjectReference(type)) _type = (BaseDesktopHeapType)heap.GetBasicType(ClrElementType.SZArray); else _type = (BaseDesktopHeapType)heap.GetArrayType(type, -1, null); } else if (type == ClrElementType.Pointer) { // Only deal with single pointers for now and types that have already been constructed res = sigParser.GetElemType(out etype); type = (ClrElementType)etype; int token; sigParser.GetToken(out token); BaseDesktopHeapType innerType = (BaseDesktopHeapType)heap.GetGCHeapTypeFromModuleAndToken(data.Module, Convert.ToUInt32(token)); if (innerType == null) { innerType = (BaseDesktopHeapType)heap.GetBasicType(type); } _type = heap.CreatePointerType(innerType, type, null); } } } if (_type == null) _type = (BaseDesktopHeapType)heap.GetBasicType(ElementType); } else if (ElementType != ClrElementType.Class) { _type.ElementType = ElementType; } }