Exemplo n.º 1
0
        void ProtoBuf.Serializers.IProtoSerializer.EmitWrite(CompilerContext ctx, Local valueFrom)
        {
            ProtoTypeCode typeCode = this.GetTypeCode();

            if (this.map == null)
            {
                ctx.LoadValue(valueFrom);
                ctx.ConvertToInt32(typeCode, false);
                ctx.EmitBasicWrite("WriteInt32", null);
                return;
            }
            using (Local localWithValue = ctx.GetLocalWithValue(this.ExpectedType, valueFrom))
            {
                CodeLabel codeLabel = ctx.DefineLabel();
                for (int i = 0; i < (int)this.map.Length; i++)
                {
                    CodeLabel codeLabel1 = ctx.DefineLabel();
                    CodeLabel codeLabel2 = ctx.DefineLabel();
                    ctx.LoadValue(localWithValue);
                    EnumSerializer.WriteEnumValue(ctx, typeCode, this.map[i].RawValue);
                    ctx.BranchIfEqual(codeLabel2, true);
                    ctx.Branch(codeLabel1, true);
                    ctx.MarkLabel(codeLabel2);
                    ctx.LoadValue(this.map[i].WireValue);
                    ctx.EmitBasicWrite("WriteInt32", null);
                    ctx.Branch(codeLabel, false);
                    ctx.MarkLabel(codeLabel1);
                }
                ctx.LoadReaderWriter();
                ctx.LoadValue(localWithValue);
                ctx.CastToObject(this.ExpectedType);
                ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("ThrowEnumException"));
                ctx.MarkLabel(codeLabel);
            }
        }
Exemplo n.º 2
0
        private void EmitBeq(CompilerContext ctx, CodeLabel label, Type type)
        {
            switch (Helpers.GetTypeCode(type))
            {
            case ProtoTypeCode.Boolean:
            case ProtoTypeCode.Char:
            case ProtoTypeCode.SByte:
            case ProtoTypeCode.Byte:
            case ProtoTypeCode.Int16:
            case ProtoTypeCode.UInt16:
            case ProtoTypeCode.Int32:
            case ProtoTypeCode.UInt32:
            case ProtoTypeCode.Int64:
            case ProtoTypeCode.UInt64:
            case ProtoTypeCode.Single:
            case ProtoTypeCode.Double:
                ctx.BranchIfEqual(label, false);
                return;
            }
            MethodInfo method = type.GetMethod("op_Equality", BindingFlags.Public | BindingFlags.Static, null, new Type[] { type, type }, null);

            if ((method == null) || (method.ReturnType != ctx.MapType(typeof(bool))))
            {
                throw new InvalidOperationException("No suitable equality operator found for default-values of type: " + type.FullName);
            }
            ctx.EmitCall(method);
            ctx.BranchIfTrue(label, false);
        }
Exemplo n.º 3
0
 protected override void EmitRead(CompilerContext ctx, Local valueFrom)
 {
     using (Local localWithValue = ctx.GetLocalWithValue(this.expectedType, valueFrom))
     {
         using (Local local = new Local(ctx, ctx.MapType(typeof(SubItemToken))))
         {
             using (Local local1 = new Local(ctx, ctx.MapType(typeof(int))))
             {
                 ctx.LoadReaderWriter();
                 ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("StartSubItem"));
                 ctx.StoreValue(local);
                 CodeLabel codeLabel  = ctx.DefineLabel();
                 CodeLabel codeLabel1 = ctx.DefineLabel();
                 CodeLabel codeLabel2 = ctx.DefineLabel();
                 ctx.MarkLabel(codeLabel);
                 ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int)));
                 ctx.CopyValue();
                 ctx.StoreValue(local1);
                 ctx.LoadValue(1);
                 ctx.BranchIfEqual(codeLabel1, true);
                 ctx.LoadValue(local1);
                 ctx.LoadValue(1);
                 ctx.BranchIfLess(codeLabel2, false);
                 ctx.LoadReaderWriter();
                 ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField"));
                 ctx.Branch(codeLabel, true);
                 ctx.MarkLabel(codeLabel1);
                 if (this.Tail.RequiresOldValue)
                 {
                     if (!this.expectedType.IsValueType)
                     {
                         ctx.LoadValue(localWithValue);
                     }
                     else
                     {
                         ctx.LoadAddress(localWithValue, this.expectedType);
                         ctx.EmitCall(this.expectedType.GetMethod("GetValueOrDefault", Helpers.EmptyTypes));
                     }
                 }
                 this.Tail.EmitRead(ctx, null);
                 if (this.expectedType.IsValueType)
                 {
                     Type   type         = this.expectedType;
                     Type[] expectedType = new Type[] { this.Tail.ExpectedType };
                     ctx.EmitCtor(type, expectedType);
                 }
                 ctx.StoreValue(localWithValue);
                 ctx.Branch(codeLabel, false);
                 ctx.MarkLabel(codeLabel2);
                 ctx.LoadValue(local);
                 ctx.LoadReaderWriter();
                 ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("EndSubItem"));
                 ctx.LoadValue(localWithValue);
             }
         }
     }
 }
Exemplo n.º 4
0
        protected override void EmitRead(CompilerContext ctx, Local valueFrom)
        {
            bool returnList     = this.ReturnList;
            bool castListForAdd = !this.add.DeclaringType.IsAssignableFrom(this.declaredType);

            using (Local local = this.AppendToCollection ? ctx.GetLocalWithValue(this.ExpectedType, valueFrom) : new Local(ctx, this.declaredType))
            {
                using (Local local2 = (returnList && this.AppendToCollection) ? new Local(ctx, this.ExpectedType) : null)
                {
                    if (!this.AppendToCollection)
                    {
                        ctx.LoadNullRef();
                        ctx.StoreValue(local);
                    }
                    else if (returnList)
                    {
                        ctx.LoadValue(local);
                        ctx.StoreValue(local2);
                    }
                    if (this.concreteType != null)
                    {
                        ctx.LoadValue(local);
                        CodeLabel label = ctx.DefineLabel();
                        ctx.BranchIfTrue(label, true);
                        ctx.EmitCtor(this.concreteType);
                        ctx.StoreValue(local);
                        ctx.MarkLabel(label);
                    }
                    EmitReadList(ctx, local, base.Tail, this.add, this.packedWireType, castListForAdd);
                    if (returnList)
                    {
                        if (this.AppendToCollection)
                        {
                            ctx.LoadValue(local2);
                            ctx.LoadValue(local);
                            CodeLabel label2 = ctx.DefineLabel();
                            CodeLabel label3 = ctx.DefineLabel();
                            ctx.BranchIfEqual(label2, true);
                            ctx.LoadValue(local);
                            ctx.Branch(label3, true);
                            ctx.MarkLabel(label2);
                            ctx.LoadNullRef();
                            ctx.MarkLabel(label3);
                        }
                        else
                        {
                            ctx.LoadValue(local);
                        }
                    }
                }
            }
        }
Exemplo n.º 5
0
 internal static void EmitReadList(CompilerContext ctx, Local list, IProtoSerializer tail, MethodInfo add, WireType packedWireType, bool castListForAdd)
 {
     using (Local local = new Local(ctx, ctx.MapType(typeof(int))))
     {
         CodeLabel codeLabel = (packedWireType == WireType.None ? new CodeLabel() : ctx.DefineLabel());
         if (packedWireType != WireType.None)
         {
             ctx.LoadReaderWriter();
             ctx.LoadValue(typeof(ProtoReader).GetProperty("WireType"));
             ctx.LoadValue(2);
             ctx.BranchIfEqual(codeLabel, false);
         }
         ctx.LoadReaderWriter();
         ctx.LoadValue(typeof(ProtoReader).GetProperty("FieldNumber"));
         ctx.StoreValue(local);
         CodeLabel codeLabel1 = ctx.DefineLabel();
         ctx.MarkLabel(codeLabel1);
         ListDecorator.EmitReadAndAddItem(ctx, list, tail, add, castListForAdd);
         ctx.LoadReaderWriter();
         ctx.LoadValue(local);
         ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("TryReadFieldHeader"));
         ctx.BranchIfTrue(codeLabel1, false);
         if (packedWireType != WireType.None)
         {
             CodeLabel codeLabel2 = ctx.DefineLabel();
             ctx.Branch(codeLabel2, false);
             ctx.MarkLabel(codeLabel);
             ctx.LoadReaderWriter();
             ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("StartSubItem"));
             CodeLabel codeLabel3 = ctx.DefineLabel();
             CodeLabel codeLabel4 = ctx.DefineLabel();
             ctx.MarkLabel(codeLabel3);
             ctx.LoadValue((int)packedWireType);
             ctx.LoadReaderWriter();
             ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("HasSubValue"));
             ctx.BranchIfFalse(codeLabel4, false);
             ListDecorator.EmitReadAndAddItem(ctx, list, tail, add, castListForAdd);
             ctx.Branch(codeLabel3, false);
             ctx.MarkLabel(codeLabel4);
             ctx.LoadReaderWriter();
             ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("EndSubItem"));
             ctx.MarkLabel(codeLabel2);
         }
     }
 }
Exemplo n.º 6
0
        protected override void EmitRead(CompilerContext ctx, Local valueFrom)
        {
            Local local;
            bool  returnList = this.ReturnList;

            using (Local local1 = (this.AppendToCollection ? ctx.GetLocalWithValue(this.ExpectedType, valueFrom) : new Local(ctx, this.declaredType)))
            {
                if (!returnList || !this.AppendToCollection)
                {
                    local = null;
                }
                else
                {
                    local = new Local(ctx, this.ExpectedType);
                }
                using (Local local2 = local)
                {
                    if (!this.AppendToCollection)
                    {
                        ctx.LoadNullRef();
                        ctx.StoreValue(local1);
                    }
                    else if (returnList)
                    {
                        ctx.LoadValue(local1);
                        ctx.StoreValue(local2);
                    }
                    if (this.concreteType != null)
                    {
                        ctx.LoadValue(local1);
                        CodeLabel codeLabel = ctx.DefineLabel();
                        ctx.BranchIfTrue(codeLabel, true);
                        ctx.EmitCtor(this.concreteType);
                        ctx.StoreValue(local1);
                        ctx.MarkLabel(codeLabel);
                    }
                    bool flag = [email protected](this.declaredType);
                    ListDecorator.EmitReadList(ctx, local1, this.Tail, this.@add, this.packedWireType, flag);
                    if (returnList)
                    {
                        if (!this.AppendToCollection)
                        {
                            ctx.LoadValue(local1);
                        }
                        else
                        {
                            ctx.LoadValue(local2);
                            ctx.LoadValue(local1);
                            CodeLabel codeLabel1 = ctx.DefineLabel();
                            CodeLabel codeLabel2 = ctx.DefineLabel();
                            ctx.BranchIfEqual(codeLabel1, true);
                            ctx.LoadValue(local1);
                            ctx.Branch(codeLabel2, true);
                            ctx.MarkLabel(codeLabel1);
                            ctx.LoadNullRef();
                            ctx.MarkLabel(codeLabel2);
                        }
                    }
                }
            }
        }
Exemplo n.º 7
0
        void IProtoSerializer.EmitRead(CompilerContext ctx, Local valueFrom)
        {
            ProtoTypeCode typeCode = this.GetTypeCode();

            if (this.map == null)
            {
                ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int)));
                ctx.ConvertFromInt32(typeCode, false);
            }
            else
            {
                int[]    keys   = new int[this.map.Length];
                object[] values = new object[this.map.Length];
                for (int i = 0; i < this.map.Length; i++)
                {
                    keys[i]   = this.map[i].WireValue;
                    values[i] = this.map[i].RawValue;
                }
                using (Local local = new Local(ctx, this.ExpectedType))
                {
                    using (Local local2 = new Local(ctx, ctx.MapType(typeof(int))))
                    {
                        ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int)));
                        ctx.StoreValue(local2);
                        CodeLabel label = ctx.DefineLabel();
                        BasicList.NodeEnumerator enumerator = BasicList.GetContiguousGroups(keys, values).GetEnumerator();
                        while (enumerator.MoveNext())
                        {
                            BasicList.Group current = (BasicList.Group)enumerator.Current;
                            CodeLabel       label2  = ctx.DefineLabel();
                            int             count   = current.Items.Count;
                            if (count == 1)
                            {
                                ctx.LoadValue(local2);
                                ctx.LoadValue(current.First);
                                CodeLabel label3 = ctx.DefineLabel();
                                ctx.BranchIfEqual(label3, true);
                                ctx.Branch(label2, false);
                                WriteEnumValue(ctx, typeCode, label3, label, current.Items[0], local);
                            }
                            else
                            {
                                ctx.LoadValue(local2);
                                ctx.LoadValue(current.First);
                                ctx.Subtract();
                                CodeLabel[] jumpTable = new CodeLabel[count];
                                for (int j = 0; j < count; j++)
                                {
                                    jumpTable[j] = ctx.DefineLabel();
                                }
                                ctx.Switch(jumpTable);
                                ctx.Branch(label2, false);
                                for (int k = 0; k < count; k++)
                                {
                                    WriteEnumValue(ctx, typeCode, jumpTable[k], label, current.Items[k], local);
                                }
                            }
                            ctx.MarkLabel(label2);
                        }
                        ctx.LoadReaderWriter();
                        ctx.LoadValue(this.ExpectedType);
                        ctx.LoadValue(local2);
                        ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("ThrowEnumException"));
                        ctx.MarkLabel(label);
                        ctx.LoadValue(local);
                    }
                }
            }
        }
Exemplo n.º 8
0
        void IProtoSerializer.EmitWrite(CompilerContext ctx, Local valueFrom)
        {
            Type expectedType = this.ExpectedType;

            using (Local local = ctx.GetLocalWithValue(expectedType, valueFrom))
            {
                this.EmitCallbackIfNeeded(ctx, local, TypeModel.CallbackType.BeforeSerialize);
                CodeLabel label = ctx.DefineLabel();
                if (!this.CanHaveInheritance)
                {
                    goto Label_0206;
                }
                for (int i = 0; i < this.serializers.Length; i++)
                {
                    IProtoSerializer serializer = this.serializers[i];
                    Type             type       = serializer.ExpectedType;
                    if (type != this.forType)
                    {
                        CodeLabel label2 = ctx.DefineLabel();
                        CodeLabel label3 = ctx.DefineLabel();
                        ctx.LoadValue(local);
                        ctx.TryCast(type);
                        ctx.CopyValue();
                        ctx.BranchIfTrue(label2, true);
                        ctx.DiscardValue();
                        ctx.Branch(label3, true);
                        ctx.MarkLabel(label2);
                        serializer.EmitWrite(ctx, null);
                        ctx.Branch(label, false);
                        ctx.MarkLabel(label3);
                    }
                }
                if ((this.constructType != null) && (this.constructType != this.forType))
                {
                    using (Local local2 = new Local(ctx, ctx.MapType(typeof(Type))))
                    {
                        ctx.LoadValue(local);
                        ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
                        ctx.CopyValue();
                        ctx.StoreValue(local2);
                        ctx.LoadValue(this.forType);
                        ctx.BranchIfEqual(label, true);
                        ctx.LoadValue(local2);
                        ctx.LoadValue(this.constructType);
                        ctx.BranchIfEqual(label, true);
                        goto Label_01B1;
                    }
                }
                ctx.LoadValue(local);
                ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
                ctx.LoadValue(this.forType);
                ctx.BranchIfEqual(label, true);
Label_01B1:
                ctx.LoadValue(this.forType);
                ctx.LoadValue(local);
                ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
                ctx.EmitCall(ctx.MapType(typeof(TypeModel)).GetMethod("ThrowUnexpectedSubtype", BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static));
Label_0206:
                ctx.MarkLabel(label);
                for (int j = 0; j < this.serializers.Length; j++)
                {
                    IProtoSerializer serializer2 = this.serializers[j];
                    if (serializer2.ExpectedType == this.forType)
                    {
                        serializer2.EmitWrite(ctx, local);
                    }
                }
                if (this.isExtensible)
                {
                    ctx.LoadValue(local);
                    ctx.LoadReaderWriter();
                    ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("AppendExtensionData"));
                }
                this.EmitCallbackIfNeeded(ctx, local, TypeModel.CallbackType.AfterSerialize);
            }
        }
Exemplo n.º 9
0
        void IProtoSerializer.EmitRead(CompilerContext ctx, Local valueFrom)
        {
            Type expectedType = this.ExpectedType;

            using (Local local = ctx.GetLocalWithValue(expectedType, valueFrom))
            {
                using (Local local2 = new Local(ctx, ctx.MapType(typeof(int))))
                {
                    if (this.HasCallbacks(TypeModel.CallbackType.BeforeDeserialize))
                    {
                        if (this.ExpectedType.IsValueType)
                        {
                            this.EmitCallbackIfNeeded(ctx, local, TypeModel.CallbackType.BeforeDeserialize);
                        }
                        else
                        {
                            CodeLabel label = ctx.DefineLabel();
                            ctx.LoadValue(local);
                            ctx.BranchIfFalse(label, false);
                            this.EmitCallbackIfNeeded(ctx, local, TypeModel.CallbackType.BeforeDeserialize);
                            ctx.MarkLabel(label);
                        }
                    }
                    CodeLabel label2 = ctx.DefineLabel();
                    CodeLabel label3 = ctx.DefineLabel();
                    ctx.Branch(label2, false);
                    ctx.MarkLabel(label3);
                    BasicList.NodeEnumerator enumerator = BasicList.GetContiguousGroups(this.fieldNumbers, this.serializers).GetEnumerator();
                    while (enumerator.MoveNext())
                    {
                        BasicList.Group current = (BasicList.Group)enumerator.Current;
                        CodeLabel       label4  = ctx.DefineLabel();
                        int             count   = current.Items.Count;
                        if (count == 1)
                        {
                            ctx.LoadValue(local2);
                            ctx.LoadValue(current.First);
                            CodeLabel label5 = ctx.DefineLabel();
                            ctx.BranchIfEqual(label5, true);
                            ctx.Branch(label4, false);
                            this.WriteFieldHandler(ctx, expectedType, local, label5, label2, (IProtoSerializer)current.Items[0]);
                        }
                        else
                        {
                            ctx.LoadValue(local2);
                            ctx.LoadValue(current.First);
                            ctx.Subtract();
                            CodeLabel[] jumpTable = new CodeLabel[count];
                            for (int i = 0; i < count; i++)
                            {
                                jumpTable[i] = ctx.DefineLabel();
                            }
                            ctx.Switch(jumpTable);
                            ctx.Branch(label4, false);
                            for (int j = 0; j < count; j++)
                            {
                                this.WriteFieldHandler(ctx, expectedType, local, jumpTable[j], label2, (IProtoSerializer)current.Items[j]);
                            }
                        }
                        ctx.MarkLabel(label4);
                    }
                    this.EmitCreateIfNull(ctx, local);
                    ctx.LoadReaderWriter();
                    if (this.isExtensible)
                    {
                        ctx.LoadValue(local);
                        ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("AppendExtensionData"));
                    }
                    else
                    {
                        ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField"));
                    }
                    ctx.MarkLabel(label2);
                    ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int)));
                    ctx.CopyValue();
                    ctx.StoreValue(local2);
                    ctx.LoadValue(0);
                    ctx.BranchIfGreater(label3, false);
                    this.EmitCreateIfNull(ctx, local);
                    this.EmitCallbackIfNeeded(ctx, local, TypeModel.CallbackType.AfterDeserialize);
                    if ((valueFrom != null) && !local.IsSame(valueFrom))
                    {
                        ctx.LoadValue(local);
                        ctx.Cast(valueFrom.Type);
                        ctx.StoreValue(valueFrom);
                    }
                }
            }
        }
Exemplo n.º 10
0
        void ProtoBuf.Serializers.IProtoSerializer.EmitRead(CompilerContext ctx, Local valueFrom)
        {
            ProtoTypeCode typeCode = this.GetTypeCode();

            if (this.map == null)
            {
                ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int)));
                ctx.ConvertFromInt32(typeCode, false);
                return;
            }
            int[]    wireValue = new int[(int)this.map.Length];
            object[] rawValue  = new object[(int)this.map.Length];
            for (int i = 0; i < (int)this.map.Length; i++)
            {
                wireValue[i] = this.map[i].WireValue;
                rawValue[i]  = this.map[i].RawValue;
            }
            using (Local local = new Local(ctx, this.ExpectedType))
            {
                using (Local local1 = new Local(ctx, ctx.MapType(typeof(int))))
                {
                    ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int)));
                    ctx.StoreValue(local1);
                    CodeLabel codeLabel = ctx.DefineLabel();
                    BasicList.NodeEnumerator enumerator = BasicList.GetContiguousGroups(wireValue, rawValue).GetEnumerator();
                    while (enumerator.MoveNext())
                    {
                        BasicList.Group current    = (BasicList.Group)enumerator.Current;
                        CodeLabel       codeLabel1 = ctx.DefineLabel();
                        int             count      = current.Items.Count;
                        if (count != 1)
                        {
                            ctx.LoadValue(local1);
                            ctx.LoadValue(current.First);
                            ctx.Subtract();
                            CodeLabel[] codeLabelArray = new CodeLabel[count];
                            for (int j = 0; j < count; j++)
                            {
                                codeLabelArray[j] = ctx.DefineLabel();
                            }
                            ctx.Switch(codeLabelArray);
                            ctx.Branch(codeLabel1, false);
                            for (int k = 0; k < count; k++)
                            {
                                EnumSerializer.WriteEnumValue(ctx, typeCode, codeLabelArray[k], codeLabel, current.Items[k], local);
                            }
                        }
                        else
                        {
                            ctx.LoadValue(local1);
                            ctx.LoadValue(current.First);
                            CodeLabel codeLabel2 = ctx.DefineLabel();
                            ctx.BranchIfEqual(codeLabel2, true);
                            ctx.Branch(codeLabel1, false);
                            EnumSerializer.WriteEnumValue(ctx, typeCode, codeLabel2, codeLabel, current.Items[0], local);
                        }
                        ctx.MarkLabel(codeLabel1);
                    }
                    ctx.LoadReaderWriter();
                    ctx.LoadValue(this.ExpectedType);
                    ctx.LoadValue(local1);
                    ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("ThrowEnumException"));
                    ctx.MarkLabel(codeLabel);
                    ctx.LoadValue(local);
                }
            }
        }
Exemplo n.º 11
0
 void ProtoBuf.Serializers.IProtoSerializer.EmitWrite(CompilerContext ctx, Local valueFrom)
 {
     using (Local localWithValue = ctx.GetLocalWithValue(this.ExpectedType, valueFrom))
     {
         this.EmitCallbackIfNeeded(ctx, localWithValue, TypeModel.CallbackType.BeforeSerialize);
         CodeLabel codeLabel = ctx.DefineLabel();
         if (this.CanHaveInheritance)
         {
             for (int i = 0; i < (int)this.serializers.Length; i++)
             {
                 IProtoSerializer protoSerializer = this.serializers[i];
                 Type             expectedType    = protoSerializer.ExpectedType;
                 if (expectedType != this.forType)
                 {
                     CodeLabel codeLabel1 = ctx.DefineLabel();
                     CodeLabel codeLabel2 = ctx.DefineLabel();
                     ctx.LoadValue(localWithValue);
                     ctx.TryCast(expectedType);
                     ctx.CopyValue();
                     ctx.BranchIfTrue(codeLabel1, true);
                     ctx.DiscardValue();
                     ctx.Branch(codeLabel2, true);
                     ctx.MarkLabel(codeLabel1);
                     protoSerializer.EmitWrite(ctx, null);
                     ctx.Branch(codeLabel, false);
                     ctx.MarkLabel(codeLabel2);
                 }
             }
             if (this.constructType == null || this.constructType == this.forType)
             {
                 ctx.LoadValue(localWithValue);
                 ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
                 ctx.LoadValue(this.forType);
                 ctx.BranchIfEqual(codeLabel, true);
             }
             else
             {
                 using (Local local = new Local(ctx, ctx.MapType(typeof(Type))))
                 {
                     ctx.LoadValue(localWithValue);
                     ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
                     ctx.CopyValue();
                     ctx.StoreValue(local);
                     ctx.LoadValue(this.forType);
                     ctx.BranchIfEqual(codeLabel, true);
                     ctx.LoadValue(local);
                     ctx.LoadValue(this.constructType);
                     ctx.BranchIfEqual(codeLabel, true);
                 }
             }
             ctx.LoadValue(this.forType);
             ctx.LoadValue(localWithValue);
             ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
             ctx.EmitCall(ctx.MapType(typeof(TypeModel)).GetMethod("ThrowUnexpectedSubtype", BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic));
         }
         ctx.MarkLabel(codeLabel);
         for (int j = 0; j < (int)this.serializers.Length; j++)
         {
             IProtoSerializer protoSerializer1 = this.serializers[j];
             if (protoSerializer1.ExpectedType == this.forType)
             {
                 protoSerializer1.EmitWrite(ctx, localWithValue);
             }
         }
         if (this.isExtensible)
         {
             ctx.LoadValue(localWithValue);
             ctx.LoadReaderWriter();
             ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("AppendExtensionData"));
         }
         this.EmitCallbackIfNeeded(ctx, localWithValue, TypeModel.CallbackType.AfterSerialize);
     }
 }