public static void ParseTypes(AdsStream dataTypeStream, Encoding encoding, IBinder binder, bool buildInTypesInStream, DataTypeCollection <IDataType> buildInTypes) { AdsBinaryReader reader = new AdsBinaryReader(dataTypeStream); string referencedType = null; while (dataTypeStream.Position < dataTypeStream.Length) { AdsDataTypeEntry entry = new AdsDataTypeEntry(true, encoding, reader); try { IDataType type = null; bool flag1 = buildInTypes.TryGetType(entry.entryName, out type); DataType type2 = (DataType)type; if (buildInTypesInStream && flag1) { continue; } DataType type3 = null; int length = 0; if (DataTypeStringParser.TryParseReference(entry.entryName, out referencedType)) { type3 = new ReferenceType(entry, referencedType); } else if (DataTypeStringParser.TryParsePointer(entry.entryName, out referencedType)) { type3 = new PointerType(entry, referencedType); } else { bool flag2; if (DataTypeStringParser.TryParseString(entry.entryName, out length, out flag2)) { type3 = !flag2 ? ((DataType) new StringType(length)) : ((DataType) new WStringType(length)); } else if (entry.methodCount > 0) { type3 = new RpcStructType(entry); } else if (entry.subItems > 0) { bool flag3 = false; bool flag4 = false; if (entry.subItems > 1) { int num2 = 0; AdsFieldEntry[] subEntries = entry.subEntries; int index = 0; while (true) { if (index >= subEntries.Length) { flag3 = entry.BitSize < num2; break; } AdsFieldEntry entry2 = subEntries[index]; if (!entry2.IsStatic && !entry2.IsProperty) { int num4 = 0; num4 = !entry2.IsBitType ? (entry2.Offset * 8) : entry2.Offset; flag4 |= num4 < num2; num2 += entry2.BitSize; } index++; } } type3 = !flag3 ? ((DataType) new StructType(entry)) : ((DataType) new UnionType(entry)); } else if (entry.arrayDim > 0) { type3 = new ArrayType(entry); } else if (entry.enumInfoCount <= 0) { if (DataTypeStringParser.TryParseSubRange(entry.entryName, out referencedType)) { type3 = (DataType)SubRangeTypeFactory.Create(entry, binder); } else if (((entry.baseTypeId > AdsDatatypeId.ADST_VOID) && (entry.typeName != null)) && (entry.typeName != string.Empty)) { type3 = new AliasType(entry); } else { DataTypeCategory cat = CategoryConverter.FromId(entry.DataTypeId); if (cat != DataTypeCategory.Unknown) { Type tp = null; if (PrimitiveTypeConverter.TryGetManagedType(entry.DataTypeId, out tp)) { if (cat == DataTypeCategory.Primitive) { type3 = new PrimitiveType(entry, PrimitiveTypeConverter.GetPrimitiveFlags(entry.DataTypeId), tp); } else if (cat == DataTypeCategory.String) { type3 = new StringType(entry); } } } if (type3 == null) { type3 = new DataType(cat, entry); } } } else { AdsDatatypeId baseTypeId = entry.baseTypeId; if (baseTypeId == AdsDatatypeId.ADST_INT16) { type3 = new EnumType <short>(entry); } else if (baseTypeId == AdsDatatypeId.ADST_INT32) { type3 = new EnumType <int>(entry); } else { switch (baseTypeId) { case AdsDatatypeId.ADST_INT8: type3 = new EnumType <sbyte>(entry); break; case AdsDatatypeId.ADST_UINT8: type3 = new EnumType <byte>(entry); break; case AdsDatatypeId.ADST_UINT16: type3 = new EnumType <ushort>(entry); break; case AdsDatatypeId.ADST_UINT32: type3 = new EnumType <uint>(entry); break; case AdsDatatypeId.ADST_INT64: type3 = new EnumType <long>(entry); break; case AdsDatatypeId.ADST_UINT64: type3 = new EnumType <ulong>(entry); break; default: throw new AdsException("Enum base type mismatch!"); } } } } binder.RegisterType(type3); } catch (Exception exception) { Module.Trace.TraceWarning($"Cannot parse DataTypeEntry. Skipping dataType '{entry.entryName}'!", exception); } } }