void PatchRawFatMethod (ByteBuffer buffer, MethodSymbols symbols, CodeWriter writer, out MetadataToken local_var_token)
		{
			var flags = ReadUInt16 ();
			buffer.WriteUInt16 (flags);
			buffer.WriteUInt16 (ReadUInt16 ());
			symbols.code_size = ReadInt32 ();
			buffer.WriteInt32 (symbols.code_size);
			local_var_token = ReadToken ();

			if (local_var_token.RID > 0) {
				var variables = symbols.variables = ReadVariables (local_var_token);
				buffer.WriteUInt32 (variables != null
					? writer.GetStandAloneSignature (symbols.variables).ToUInt32 ()
					: 0);
			} else
				buffer.WriteUInt32 (0);

			PatchRawCode (buffer, symbols.code_size, writer);

			if ((flags & 0x8) != 0)
				PatchRawSection (buffer, writer.metadata);
		}
		void PatchRawCode (ByteBuffer buffer, int code_size, CodeWriter writer)
		{
			var metadata = writer.metadata;
			buffer.WriteBytes (ReadBytes (code_size));
			var end = buffer.position;
			buffer.position -= code_size;

			while (buffer.position < end) {
				OpCode opcode;
				var il_opcode = buffer.ReadByte ();
				if (il_opcode != 0xfe) {
					opcode = OpCodes.OneByteOpCode [il_opcode];
				} else {
					var il_opcode2 = buffer.ReadByte ();
					opcode = OpCodes.TwoBytesOpCode [il_opcode2];
				}

				switch (opcode.OperandType) {
				case OperandType.ShortInlineI:
				case OperandType.ShortInlineBrTarget:
				case OperandType.ShortInlineVar:
				case OperandType.ShortInlineArg:
					buffer.position += 1;
					break;
				case OperandType.InlineVar:
				case OperandType.InlineArg:
					buffer.position += 2;
					break;
				case OperandType.InlineBrTarget:
				case OperandType.ShortInlineR:
				case OperandType.InlineI:
					buffer.position += 4;
					break;
				case OperandType.InlineI8:
				case OperandType.InlineR:
					buffer.position += 8;
					break;
				case OperandType.InlineSwitch:
					var length = buffer.ReadInt32 ();
					buffer.position += length * 4;
					break;
				case OperandType.InlineString:
					var @string = GetString (new MetadataToken (buffer.ReadUInt32 ()));
					buffer.position -= 4;
					buffer.WriteUInt32 (
						new MetadataToken (
							TokenType.String,
							metadata.user_string_heap.GetStringIndex (@string)).ToUInt32 ());
					break;
				case OperandType.InlineSig:
					var call_site = GetCallSite (new MetadataToken (buffer.ReadUInt32 ()));
					buffer.position -= 4;
					buffer.WriteUInt32 (writer.GetStandAloneSignature (call_site).ToUInt32 ());
					break;
				case OperandType.InlineTok:
				case OperandType.InlineType:
				case OperandType.InlineMethod:
				case OperandType.InlineField:
					var provider = reader.LookupToken (new MetadataToken (buffer.ReadUInt32 ()));
					buffer.position -= 4;
					buffer.WriteUInt32 (metadata.LookupToken (provider).ToUInt32 ());
					break;
				}
			}
		}
		public ByteBuffer PatchRawMethodBody (MethodDefinition method, CodeWriter writer, out MethodSymbols symbols)
		{
			var buffer = new ByteBuffer ();
			symbols = new MethodSymbols (method.Name);

			this.method = method;
			reader.context = method;

			MoveTo (method.RVA);

			var flags = ReadByte ();

			MetadataToken local_var_token;

			switch (flags & 0x3) {
			case 0x2: // tiny
				buffer.WriteByte (flags);
				local_var_token = MetadataToken.Zero;
				symbols.code_size = flags >> 2;
				PatchRawCode (buffer, symbols.code_size, writer);
				break;
			case 0x3: // fat
				base.position--;

				PatchRawFatMethod (buffer, symbols, writer, out local_var_token);
				break;
			default:
				throw new NotSupportedException ();
			}

			var symbol_reader = reader.module.SymbolReader;
			if (symbol_reader != null && writer.metadata.write_symbols) {
				symbols.method_token = GetOriginalToken (writer.metadata, method);
				symbols.local_var_token = local_var_token;
				symbol_reader.Read (symbols);
			}

			return buffer;
		}