} // updates field directly #if FEAT_COMPILER void IProtoSerializer.EmitWrite(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { Type expected = ExpectedType; using (Compiler.Local loc = ctx.GetLocalWithValue(expected, valueFrom)) { // pre-callbacks EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeSerialize); Compiler.CodeLabel startFields = ctx.DefineLabel(); // inheritance if (CanHaveInheritance) { for (int i = 0; i < serializers.Length; i++) { IProtoSerializer ser = serializers[i]; if (ser.ExpectedType != forType) { Compiler.CodeLabel ifMatch = ctx.DefineLabel(), nextTest = ctx.DefineLabel(); ctx.LoadValue(loc); ctx.TryCast(ser.ExpectedType); ctx.CopyValue(); ctx.BranchIfTrue(ifMatch, true); ctx.DiscardValue(); ctx.Branch(nextTest, true); ctx.MarkLabel(ifMatch); ser.EmitWrite(ctx, null); ctx.Branch(startFields, false); ctx.MarkLabel(nextTest); } } if (constructType != null && constructType != forType) { using (Compiler.Local actualType = new Compiler.Local(ctx, ctx.MapType(typeof(System.Type)))) { // would have jumped to "fields" if an expected sub-type, so two options: // a: *exactly* that type, b: an *unexpected* type ctx.LoadValue(loc); ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType")); ctx.CopyValue(); ctx.StoreValue(actualType); ctx.LoadValue(forType); ctx.BranchIfEqual(startFields, true); ctx.LoadValue(actualType); ctx.LoadValue(constructType); ctx.BranchIfEqual(startFields, true); } } else { // would have jumped to "fields" if an expected sub-type, so two options: // a: *exactly* that type, b: an *unexpected* type ctx.LoadValue(loc); ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType")); ctx.LoadValue(forType); ctx.BranchIfEqual(startFields, true); } // unexpected, then... note that this *might* be a proxy, which // is handled by ThrowUnexpectedSubtype ctx.LoadValue(forType); ctx.LoadValue(loc); ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType")); ctx.EmitCall(ctx.MapType(typeof(TypeModel)).GetMethod("ThrowUnexpectedSubtype", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static)); } // fields ctx.MarkLabel(startFields); for (int i = 0; i < serializers.Length; i++) { IProtoSerializer ser = serializers[i]; if (ser.ExpectedType == forType) { ser.EmitWrite(ctx, loc); } } // extension data if (isExtensible) { ctx.LoadValue(loc); ctx.LoadReaderWriter(); ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("AppendExtensionData")); } // post-callbacks EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.AfterSerialize); } }
void IProtoSerializer.EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { Type expected = ExpectedType; Helpers.DebugAssert(valueFrom != null); using (Compiler.Local loc = ctx.GetLocalWithValue(expected, valueFrom)) using (Compiler.Local fieldNumber = new Compiler.Local(ctx, ctx.MapType(typeof(int)))) { // pre-callbacks if (HasCallbacks(TypeModel.CallbackType.BeforeDeserialize)) { if (ExpectedType.IsValueType) { EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeDeserialize); } else { // could be null Compiler.CodeLabel callbacksDone = ctx.DefineLabel(); ctx.LoadValue(loc); ctx.BranchIfFalse(callbacksDone, false); EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeDeserialize); ctx.MarkLabel(callbacksDone); } } Compiler.CodeLabel @continue = ctx.DefineLabel(), processField = ctx.DefineLabel(); ctx.Branch(@continue, false); ctx.MarkLabel(processField); foreach (BasicList.Group group in BasicList.GetContiguousGroups(fieldNumbers, serializers)) { Compiler.CodeLabel tryNextField = ctx.DefineLabel(); int groupItemCount = group.Items.Count; if (groupItemCount == 1) { // discreet group; use an equality test ctx.LoadValue(fieldNumber); ctx.LoadValue(group.First); Compiler.CodeLabel processThisField = ctx.DefineLabel(); ctx.BranchIfEqual(processThisField, true); ctx.Branch(tryNextField, false); WriteFieldHandler(ctx, expected, loc, processThisField, @continue, (IProtoSerializer)group.Items[0]); } else { // implement as a jump-table-based switch ctx.LoadValue(fieldNumber); ctx.LoadValue(group.First); ctx.Subtract(); // jump-tables are zero-based Compiler.CodeLabel[] jmp = new Compiler.CodeLabel[groupItemCount]; for (int i = 0; i < groupItemCount; i++) { jmp[i] = ctx.DefineLabel(); } ctx.Switch(jmp); // write the default... ctx.Branch(tryNextField, false); for (int i = 0; i < groupItemCount; i++) { WriteFieldHandler(ctx, expected, loc, jmp[i], @continue, (IProtoSerializer)group.Items[i]); } } ctx.MarkLabel(tryNextField); } EmitCreateIfNull(ctx, loc); ctx.LoadReaderWriter(); if (isExtensible) { ctx.LoadValue(loc); ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("AppendExtensionData")); } else { ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField")); } ctx.MarkLabel(@continue); ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int))); ctx.CopyValue(); ctx.StoreValue(fieldNumber); ctx.LoadValue(0); ctx.BranchIfGreater(processField, false); EmitCreateIfNull(ctx, loc); // post-callbacks EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.AfterDeserialize); } }
protected override void EmitWrite(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (Compiler.Local valOrNull = ctx.GetLocalWithValue(expectedType, valueFrom)) using (Compiler.Local token = new Compiler.Local(ctx, ctx.MapType(typeof(SubItemToken)))) { ctx.LoadNullRef(); ctx.LoadReaderWriter(); ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("StartSubItem")); ctx.StoreValue(token); if (expectedType.IsValueType) { ctx.LoadAddress(valOrNull, expectedType); ctx.LoadValue(expectedType.GetProperty("HasValue")); } else { ctx.LoadValue(valOrNull); } Compiler.CodeLabel @end = ctx.DefineLabel(); ctx.BranchIfFalse(@end, false); if (expectedType.IsValueType) { ctx.LoadAddress(valOrNull, expectedType); ctx.EmitCall(expectedType.GetMethod("GetValueOrDefault", Helpers.EmptyTypes)); } else { ctx.LoadValue(valOrNull); } Tail.EmitWrite(ctx, null); ctx.MarkLabel(@end); ctx.LoadValue(token); ctx.LoadReaderWriter(); ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("EndSubItem")); } }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (Compiler.Local oldList = AppendToCollection ? ctx.GetLocalWithValue(ExpectedType, valueFrom) : null) using (Compiler.Local builder = new Compiler.Local(ctx, builderFactory.ReturnType)) { ctx.EmitCall(builderFactory); ctx.StoreValue(builder); if (AppendToCollection) { Compiler.CodeLabel done = ctx.DefineLabel(); if (!Helpers.IsValueType(ExpectedType)) { ctx.LoadValue(oldList); ctx.BranchIfFalse(done, false); // old value null; nothing to add } #if COREFX TypeInfo typeInfo = ExpectedType.GetTypeInfo(); #else Type typeInfo = ExpectedType; #endif PropertyInfo prop = Helpers.GetProperty(typeInfo, "Length", false); if (prop == null) { prop = Helpers.GetProperty(typeInfo, "Count", false); } #if !NO_GENERICS if (prop == null) { prop = Helpers.GetProperty(ResolveIReadOnlyCollection(ExpectedType, Tail.ExpectedType), "Count", false); } #endif ctx.LoadAddress(oldList, oldList.Type); ctx.EmitCall(Helpers.GetGetMethod(prop, false, false)); ctx.BranchIfFalse(done, false); // old list is empty; nothing to add Type voidType = ctx.MapType(typeof(void)); if (addRange != null) { ctx.LoadValue(builder); ctx.LoadValue(oldList); ctx.EmitCall(addRange); if (addRange.ReturnType != null && add.ReturnType != voidType) { ctx.DiscardValue(); } } else { // loop and call Add repeatedly MethodInfo moveNext, current, getEnumerator = GetEnumeratorInfo(ctx.Model, out moveNext, out current); Helpers.DebugAssert(moveNext != null); Helpers.DebugAssert(current != null); Helpers.DebugAssert(getEnumerator != null); Type enumeratorType = getEnumerator.ReturnType; using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType)) { ctx.LoadAddress(oldList, ExpectedType); ctx.EmitCall(getEnumerator); ctx.StoreValue(iter); using (ctx.Using(iter)) { Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel(); ctx.Branch(next, false); ctx.MarkLabel(body); ctx.LoadAddress(builder, builder.Type); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(current); ctx.EmitCall(add); if (add.ReturnType != null && add.ReturnType != voidType) { ctx.DiscardValue(); } ctx.MarkLabel(@next); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(moveNext); ctx.BranchIfTrue(body, false); } } } ctx.MarkLabel(done); } EmitReadList(ctx, builder, Tail, add, packedWireType, false); ctx.LoadAddress(builder, builder.Type); ctx.EmitCall(finish); if (ExpectedType != finish.ReturnType) { ctx.Cast(ExpectedType); } } }
private static MethodBuilder EmitBoxedSerializer(TypeBuilder type, int i, Type valueType, SerializerPair[] methodPairs) { MethodInfo dedicated = methodPairs[i].Deserialize; MethodBuilder boxedSerializer = type.DefineMethod("_" + i, MethodAttributes.Static, CallingConventions.Standard, typeof(object), new Type[] { typeof(object), typeof(ProtoReader) }); Compiler.CompilerContext ctx = new Compiler.CompilerContext(boxedSerializer.GetILGenerator(), true, false, methodPairs); ctx.LoadValue(Compiler.Local.InputValue); Compiler.CodeLabel @null = ctx.DefineLabel(); ctx.BranchIfFalse(@null, true); ctx.LoadValue(Compiler.Local.InputValue); ctx.CastFromObject(valueType); ctx.LoadReaderWriter(); ctx.EmitCall(dedicated); ctx.CastToObject(valueType); ctx.Return(); ctx.MarkLabel(@null); using(Compiler.Local typedVal = new Compiler.Local(ctx, valueType)) { // create a new valueType ctx.LoadAddress(typedVal, valueType); ctx.EmitCtor(valueType); ctx.LoadValue(typedVal); ctx.LoadReaderWriter(); ctx.EmitCall(dedicated); ctx.CastToObject(valueType); ctx.Return(); } return boxedSerializer; }
private void WriteGetKeyImpl(TypeBuilder type, bool hasInheritance, SerializerPair[] methodPairs, Compiler.CompilerContext.ILVersion ilVersion, string assemblyName, out ILGenerator il, out int knownTypesCategory, out FieldBuilder knownTypes, out Type knownTypesLookupType) { il = Override(type, "GetKeyImpl"); Compiler.CompilerContext ctx = new Compiler.CompilerContext(il, false, false, methodPairs, this, ilVersion, assemblyName, MapType(typeof(System.Type), true)); if (types.Count <= KnownTypes_ArrayCutoff) { knownTypesCategory = KnownTypes_Array; knownTypesLookupType = MapType(typeof(System.Type[]), true); } else { #if NO_GENERICS knownTypesLookupType = null; #else knownTypesLookupType = MapType(typeof(System.Collections.Generic.Dictionary<System.Type, int>), false); #endif if (knownTypesLookupType == null) { knownTypesLookupType = MapType(typeof(Hashtable), true); knownTypesCategory = KnownTypes_Hashtable; } else { knownTypesCategory = KnownTypes_Dictionary; } } knownTypes = type.DefineField("knownTypes", knownTypesLookupType, FieldAttributes.Private | FieldAttributes.InitOnly | FieldAttributes.Static); switch (knownTypesCategory) { case KnownTypes_Array: { il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); // note that Array.IndexOf is not supported under CF il.EmitCall(OpCodes.Callvirt, MapType(typeof(IList)).GetMethod( "IndexOf", new Type[] { MapType(typeof(object)) }), null); if (hasInheritance) { il.DeclareLocal(MapType(typeof(int))); // loc-0 il.Emit(OpCodes.Dup); il.Emit(OpCodes.Stloc_0); BasicList getKeyLabels = new BasicList(); int lastKey = -1; for (int i = 0; i < methodPairs.Length; i++) { if (methodPairs[i].MetaKey == methodPairs[i].BaseKey) break; if (lastKey == methodPairs[i].BaseKey) { // add the last label again getKeyLabels.Add(getKeyLabels[getKeyLabels.Count - 1]); } else { // add a new unique label getKeyLabels.Add(ctx.DefineLabel()); lastKey = methodPairs[i].BaseKey; } } Compiler.CodeLabel[] subtypeLabels = new Compiler.CodeLabel[getKeyLabels.Count]; getKeyLabels.CopyTo(subtypeLabels, 0); ctx.Switch(subtypeLabels); il.Emit(OpCodes.Ldloc_0); // not a sub-type; use the original value il.Emit(OpCodes.Ret); lastKey = -1; // now output the different branches per sub-type (not derived type) for (int i = subtypeLabels.Length - 1; i >= 0; i--) { if (lastKey != methodPairs[i].BaseKey) { lastKey = methodPairs[i].BaseKey; // find the actual base-index for this base-key (i.e. the index of // the base-type) int keyIndex = -1; for (int j = subtypeLabels.Length; j < methodPairs.Length; j++) { if (methodPairs[j].BaseKey == lastKey && methodPairs[j].MetaKey == lastKey) { keyIndex = j; break; } } ctx.MarkLabel(subtypeLabels[i]); Compiler.CompilerContext.LoadValue(il, keyIndex); il.Emit(OpCodes.Ret); } } } else { il.Emit(OpCodes.Ret); } } break; case KnownTypes_Dictionary: { LocalBuilder result = il.DeclareLocal(MapType(typeof(int))); Label otherwise = il.DefineLabel(); il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); il.Emit(OpCodes.Ldloca_S, result); il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetMethod("TryGetValue", BindingFlags.Instance | BindingFlags.Public), null); il.Emit(OpCodes.Brfalse_S, otherwise); il.Emit(OpCodes.Ldloc_S, result); il.Emit(OpCodes.Ret); il.MarkLabel(otherwise); il.Emit(OpCodes.Ldc_I4_M1); il.Emit(OpCodes.Ret); } break; case KnownTypes_Hashtable: { Label otherwise = il.DefineLabel(); il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetProperty("Item").GetGetMethod(), null); il.Emit(OpCodes.Dup); il.Emit(OpCodes.Brfalse_S, otherwise); #if FX11 il.Emit(OpCodes.Unbox, MapType(typeof(int))); il.Emit(OpCodes.Ldobj, MapType(typeof(int))); #else if (ilVersion == Compiler.CompilerContext.ILVersion.Net1) { il.Emit(OpCodes.Unbox, MapType(typeof(int))); il.Emit(OpCodes.Ldobj, MapType(typeof(int))); } else { il.Emit(OpCodes.Unbox_Any, MapType(typeof(int))); } #endif il.Emit(OpCodes.Ret); il.MarkLabel(otherwise); il.Emit(OpCodes.Pop); il.Emit(OpCodes.Ldc_I4_M1); il.Emit(OpCodes.Ret); } break; default: throw new InvalidOperationException(); } }
private void WriteGetKeyImpl(TypeBuilder type, bool hasInheritance, SerializerPair[] methodPairs, Compiler.CompilerContext.ILVersion ilVersion, string assemblyName, out ILGenerator il, out int knownTypesCategory, out FieldBuilder knownTypes, out Type knownTypesLookupType) { var genInfo = Override(type, "GetKeyImpl"); il = genInfo.GetILGenerator(); Compiler.CompilerContext ctx = new Compiler.CompilerContext(genInfo, false, false, methodPairs, this, ilVersion, assemblyName, MapType(typeof(System.Type), true)); if (_types.Count <= KnownTypes_ArrayCutoff) { knownTypesCategory = KnownTypes_Array; knownTypesLookupType = MapType(typeof(System.Type[]), true); } else { #if NO_GENERICS knownTypesLookupType = null; #else knownTypesLookupType = MapType(typeof(System.Collections.Generic.Dictionary <System.Type, int>), false); #endif if (knownTypesLookupType == null) { knownTypesLookupType = MapType(typeof(Hashtable), true); knownTypesCategory = KnownTypes_Hashtable; } else { knownTypesCategory = KnownTypes_Dictionary; } } knownTypes = type.DefineField("knownTypes", knownTypesLookupType, FieldAttributes.Private | FieldAttributes.InitOnly | FieldAttributes.Static); switch (knownTypesCategory) { case KnownTypes_Array: { il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); // note that Array.IndexOf is not supported under CF il.EmitCall(OpCodes.Callvirt, MapType(typeof(IList)).GetMethod( "IndexOf", new Type[] { MapType(typeof(object)) }), null); if (hasInheritance) { il.DeclareLocal(MapType(typeof(int))); // loc-0 il.Emit(OpCodes.Dup); il.Emit(OpCodes.Stloc_0); BasicList getKeyLabels = new BasicList(); int lastKey = -1; for (int i = 0; i < methodPairs.Length; i++) { if (methodPairs[i].MetaKey == methodPairs[i].BaseKey) { break; } if (lastKey == methodPairs[i].BaseKey) { // add the last label again getKeyLabels.Add(getKeyLabels[getKeyLabels.Count - 1]); } else { // add a new unique label getKeyLabels.Add(ctx.DefineLabel()); lastKey = methodPairs[i].BaseKey; } } Compiler.CodeLabel[] subtypeLabels = new Compiler.CodeLabel[getKeyLabels.Count]; getKeyLabels.CopyTo(subtypeLabels, 0); ctx.Switch(subtypeLabels); il.Emit(OpCodes.Ldloc_0); // not a sub-type; use the original value il.Emit(OpCodes.Ret); lastKey = -1; // now output the different branches per sub-type (not derived type) for (int i = subtypeLabels.Length - 1; i >= 0; i--) { if (lastKey != methodPairs[i].BaseKey) { lastKey = methodPairs[i].BaseKey; // find the actual base-index for this base-key (i.e. the index of // the base-type) int keyIndex = -1; for (int j = subtypeLabels.Length; j < methodPairs.Length; j++) { if (methodPairs[j].BaseKey == lastKey && methodPairs[j].MetaKey == lastKey) { keyIndex = j; break; } } ctx.MarkLabel(subtypeLabels[i]); Compiler.CompilerContext.LoadValue(il, keyIndex); il.Emit(OpCodes.Ret); } } } else { il.Emit(OpCodes.Ret); } } break; case KnownTypes_Dictionary: { LocalBuilder result = il.DeclareLocal(MapType(typeof(int))); Label otherwise = il.DefineLabel(); il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); il.Emit(OpCodes.Ldloca_S, result); il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetMethod("TryGetValue", BindingFlags.Instance | BindingFlags.Public), null); il.Emit(OpCodes.Brfalse_S, otherwise); il.Emit(OpCodes.Ldloc_S, result); il.Emit(OpCodes.Ret); il.MarkLabel(otherwise); il.Emit(OpCodes.Ldc_I4_M1); il.Emit(OpCodes.Ret); } break; case KnownTypes_Hashtable: { Label otherwise = il.DefineLabel(); il.Emit(OpCodes.Ldsfld, knownTypes); il.Emit(OpCodes.Ldarg_1); il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetProperty("Item").GetGetMethod(), null); il.Emit(OpCodes.Dup); il.Emit(OpCodes.Brfalse_S, otherwise); #if FX11 il.Emit(OpCodes.Unbox, MapType(typeof(int))); il.Emit(OpCodes.Ldobj, MapType(typeof(int))); #else if (ilVersion == Compiler.CompilerContext.ILVersion.Net1) { il.Emit(OpCodes.Unbox, MapType(typeof(int))); il.Emit(OpCodes.Ldobj, MapType(typeof(int))); } else { il.Emit(OpCodes.Unbox_Any, MapType(typeof(int))); } #endif il.Emit(OpCodes.Ret); il.MarkLabel(otherwise); il.Emit(OpCodes.Pop); il.Emit(OpCodes.Ldc_I4_M1); il.Emit(OpCodes.Ret); } break; default: throw new InvalidOperationException(); } }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { bool writeValue; SanityCheck(ctx.Model, property, Tail, out writeValue, ctx.NonPublic, ctx.AllowInternal(property)); if (ExpectedType.IsValueType && valueFrom == null) { throw new InvalidOperationException("Attempt to mutate struct on the head of the stack; changes would be lost"); } ctx.LoadAddress(valueFrom, ExpectedType); // stack is: old-addr if (writeValue && Tail.RequiresOldValue) { // need to read and write ctx.CopyValue(); } // stack is: [old-addr]|old-addr if (Tail.RequiresOldValue) { ctx.LoadValue(property); // stack is: [old-addr]|old-value } Type propertyType = property.PropertyType; ctx.ReadNullCheckedTail(propertyType, Tail, null); // stack is [old-addr]|[new-value] if (writeValue) { // stack is old-addr|new-value Compiler.CodeLabel @skip = new Compiler.CodeLabel(), allDone = new Compiler.CodeLabel(); // <=== default structs if (!propertyType.IsValueType) { // if the tail returns a null, intepret that as *no assign* ctx.CopyValue(); // old-addr|new-value|new-value @skip = ctx.DefineLabel(); allDone = ctx.DefineLabel(); ctx.BranchIfFalse(@skip, true); // old-addr|new-value } if (shadowSetter == null) { ctx.StoreValue(property); } else { ctx.EmitCall(shadowSetter); } if (!propertyType.IsValueType) { ctx.Branch(allDone, true); ctx.MarkLabel(@skip); // old-addr|new-value ctx.DiscardValue(); ctx.DiscardValue(); ctx.MarkLabel(allDone); } } else { // don't want return value; drop it if anything there // stack is [new-value] if (Tail.ReturnsValue) { ctx.DiscardValue(); } } }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (Compiler.Local oldValue = ctx.GetLocalWithValue(ExpectedType, valueFrom)) using (Compiler.Local token = new Compiler.Local(ctx, typeof(SubItemToken))) using (Compiler.Local field = new Compiler.Local(ctx, typeof(int))) { ctx.LoadReader(true); ctx.EmitCall(typeof(ProtoReader).GetMethod("StartSubItem", Compiler.ReaderUtil.ReaderStateTypeArray)); ctx.StoreValue(token); Compiler.CodeLabel next = ctx.DefineLabel(), processField = ctx.DefineLabel(), end = ctx.DefineLabel(); ctx.MarkLabel(next); ctx.EmitBasicRead("ReadFieldHeader", typeof(int)); ctx.CopyValue(); ctx.StoreValue(field); ctx.LoadValue(Tag); // = 1 - process ctx.BranchIfEqual(processField, true); ctx.LoadValue(field); ctx.LoadValue(1); // < 1 - exit ctx.BranchIfLess(end, false); // default: skip ctx.LoadReader(true); ctx.EmitCall(typeof(ProtoReader).GetMethod("SkipField", Compiler.ReaderUtil.StateTypeArray)); ctx.Branch(next, true); // process ctx.MarkLabel(processField); if (Tail.RequiresOldValue) { if (Helpers.IsValueType(ExpectedType)) { ctx.LoadAddress(oldValue, ExpectedType); ctx.EmitCall(ExpectedType.GetMethod("GetValueOrDefault", Helpers.EmptyTypes)); } else { ctx.LoadValue(oldValue); } } Tail.EmitRead(ctx, null); // note we demanded always returns a value if (Helpers.IsValueType(ExpectedType)) { ctx.EmitCtor(ExpectedType, Tail.ExpectedType); // re-nullable<T> it } ctx.StoreValue(oldValue); ctx.Branch(next, false); // outro ctx.MarkLabel(end); ctx.LoadValue(token); ctx.LoadReader(true); ctx.EmitCall(typeof(ProtoReader).GetMethod("EndSubItem", new[] { typeof(SubItemToken), typeof(ProtoReader), Compiler.ReaderUtil.ByRefStateType })); ctx.LoadValue(oldValue); // load the old value } }
private Compiler.CompilerContext WriteSerializeDeserialize(string assemblyName, TypeBuilder type, SerializerPair[] methodPairs, SerializerPair[] rootMethodPairs, Compiler.CompilerContext.ILVersion ilVersion, ref ILGenerator il) { Compiler.CompilerContext ctx; // arg0 = this, arg1 = key, arg2=obj, arg3=dest Compiler.CodeLabel[] jumpTable; { var genInfo = Override(type, "Serialize"); il = genInfo.GetILGenerator(); ctx = new Compiler.CompilerContext(genInfo, false, true, methodPairs, this, ilVersion, assemblyName, MapType(typeof(object))); jumpTable = new Compiler.CodeLabel[_types.Count]; for (int i = 0; i < jumpTable.Length; i++) { jumpTable[i] = ctx.DefineLabel(); } il.Emit(OpCodes.Ldarg_1); ctx.Switch(jumpTable); ctx.Return(); for (int i = 0; i < jumpTable.Length; i++) { SerializerPair pair = methodPairs[i]; ctx.MarkLabel(jumpTable[i]); var labelNoRoot = ctx.DefineLabel(); il.Emit(OpCodes.Ldarg_S, 4); ctx.BranchIfFalse(labelNoRoot, true); WriteSerializePair(il, ctx, rootMethodPairs[i]); ctx.MarkLabel(labelNoRoot); WriteSerializePair(il, ctx, pair); } } { var genInfo = Override(type, "Deserialize"); il = genInfo.GetILGenerator(); ctx = new Compiler.CompilerContext(genInfo, false, false, methodPairs, this, ilVersion, assemblyName, MapType(typeof(object))); // arg0 = this, arg1 = key, arg2=obj, arg3=source for (int i = 0; i < jumpTable.Length; i++) { jumpTable[i] = ctx.DefineLabel(); } il.Emit(OpCodes.Ldarg_1); ctx.Switch(jumpTable); ctx.LoadNullRef(); ctx.Return(); for (int i = 0; i < jumpTable.Length; i++) { SerializerPair pair = methodPairs[i]; ctx.MarkLabel(jumpTable[i]); var labelNoRoot = ctx.DefineLabel(); il.Emit(OpCodes.Ldarg_S, 4); ctx.BranchIfFalse(labelNoRoot, true); WriteDeserializePair(assemblyName, type, rootMethodPairs, ilVersion, il, rootMethodPairs[i], i, ctx); ctx.MarkLabel(labelNoRoot); WriteDeserializePair(assemblyName, type, methodPairs, ilVersion, il, pair, i, ctx); } } return(ctx); }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { bool writeValue; SanityCheck(ctx.Model, property, Tail, out writeValue, ctx.NonPublic, ctx.AllowInternal(property)); if (Helpers.IsValueType(ExpectedType) && valueFrom == null) { throw new InvalidOperationException("Attempt to mutate struct on the head of the stack; changes would be lost"); } using (Compiler.Local loc = ctx.GetLocalWithValue(ExpectedType, valueFrom)) { if (Tail.RequiresOldValue) { ctx.LoadAddress(loc, ExpectedType); // stack is: old-addr ctx.LoadValue(property); // stack is: old-value } Type propertyType = property.PropertyType; ctx.ReadNullCheckedTail(propertyType, Tail, null, overrideType); // stack is [new-value] if (writeValue) { var newType = overrideType != null ? overrideType : property.PropertyType; using (Compiler.Local newVal = new Compiler.Local(ctx, newType)) { ctx.StoreValue(newVal); // stack is empty Compiler.CodeLabel allDone = new Compiler.CodeLabel(); // <=== default structs if (!Helpers.IsValueType(propertyType)) { // if the tail returns a null, intepret that as *no assign* allDone = ctx.DefineLabel(); ctx.LoadValue(newVal); // stack is: new-value ctx.BranchIfFalse(@allDone, true); // stack is empty } // assign the value ctx.LoadAddress(loc, ExpectedType); // parent-addr ctx.LoadValue(newVal); // parent-obj|new-value if (overrideType != null) { ctx.Cast(property.PropertyType); } if (shadowSetter == null) { ctx.StoreValue(property); // empty } else { ctx.EmitCall(shadowSetter); // empty } if (!Helpers.IsValueType(propertyType)) { ctx.MarkLabel(allDone); } } } else { // don't want return value; drop it if anything there // stack is [new-value] if (Tail.ReturnsValue) { ctx.DiscardValue(); } } } }
private void WriteFieldHandler( Compiler.CompilerContext ctx, Type expected, Compiler.Local loc, Compiler.CodeLabel handler, Compiler.CodeLabel @continue, IProtoSerializer serializer) { ctx.MarkLabel(handler); Type serType = serializer.ExpectedType; if (serType == forType) { EmitCreateIfNull(ctx, loc); serializer.EmitRead(ctx, loc); } else { //RuntimeTypeModel rtm = (RuntimeTypeModel)ctx.Model; if (((IProtoTypeSerializer)serializer).CanCreateInstance()) { Compiler.CodeLabel allDone = ctx.DefineLabel(); ctx.LoadValue(loc); ctx.BranchIfFalse(allDone, false); // null is always ok ctx.LoadValue(loc); ctx.TryCast(serType); ctx.BranchIfTrue(allDone, false); // not null, but of the correct type // otherwise, need to convert it ctx.LoadReaderWriter(); ctx.LoadValue(loc); ((IProtoTypeSerializer)serializer).EmitCreateInstance(ctx); ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("Merge")); ctx.Cast(expected); ctx.StoreValue(loc); // Merge always returns a value // nothing needs doing ctx.MarkLabel(allDone); } ctx.LoadValue(loc); ctx.Cast(serType); serializer.EmitRead(ctx, null); } if (serializer.ReturnsValue) { // update the variable ctx.StoreValue(loc); } ctx.Branch(@continue, false); // "continue" }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (Compiler.Local oldList = AppendToCollection ? ctx.GetLocalWithValue(ExpectedType, valueFrom) : null) using (Compiler.Local builder = new Compiler.Local(ctx, builderFactory.ReturnType)) { ctx.EmitCall(builderFactory); ctx.StoreValue(builder); if (AppendToCollection) { Compiler.CodeLabel done = ctx.DefineLabel(); if (!Helpers.IsValueType(ExpectedType)) { ctx.LoadValue(oldList); ctx.BranchIfFalse(done, false); // old value null; nothing to add } ctx.LoadAddress(oldList, oldList.Type); if (isEmpty != null) { ctx.EmitCall(Helpers.GetGetMethod(isEmpty, false, false)); ctx.BranchIfTrue(done, false); // old list is empty; nothing to add } else { ctx.EmitCall(Helpers.GetGetMethod(length, false, false)); ctx.BranchIfFalse(done, false); // old list is empty; nothing to add } Type voidType = typeof(void); if (addRange != null) { ctx.LoadValue(builder); ctx.LoadValue(oldList); ctx.EmitCall(addRange); if (addRange.ReturnType != null && add.ReturnType != voidType) { ctx.DiscardValue(); } } else { // loop and call Add repeatedly MethodInfo moveNext, current, getEnumerator = GetEnumeratorInfo(out moveNext, out current); Helpers.DebugAssert(moveNext != null); Helpers.DebugAssert(current != null); Helpers.DebugAssert(getEnumerator != null); Type enumeratorType = getEnumerator.ReturnType; using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType)) { ctx.LoadAddress(oldList, ExpectedType); ctx.EmitCall(getEnumerator); ctx.StoreValue(iter); using (ctx.Using(iter)) { Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel(); ctx.Branch(next, false); ctx.MarkLabel(body); ctx.LoadAddress(builder, builder.Type); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(current); ctx.EmitCall(add); if (add.ReturnType != null && add.ReturnType != voidType) { ctx.DiscardValue(); } ctx.MarkLabel(@next); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(moveNext); ctx.BranchIfTrue(body, false); } } } ctx.MarkLabel(done); } EmitReadList(ctx, builder, Tail, add, packedWireType, false); ctx.LoadAddress(builder, builder.Type); ctx.EmitCall(finish); if (ExpectedType != finish.ReturnType) { ctx.Cast(ExpectedType); } } }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (ctx.StartDebugBlockAuto(this)) { Type voidType = ctx.MapType(typeof(void)); using (Compiler.Local value = ctx.GetLocalWithValueForEmitRead(this, valueFrom)) using (Compiler.Local builderInstance = new Compiler.Local(ctx, _builderFactory.ReturnType)) using (Compiler.Local trappedKey = new Compiler.Local(ctx, typeof(int))) { ctx.G.Assign(trappedKey, ctx.G.ReaderFunc.ReserveNoteObject_int()); ctx.EmitCall(_builderFactory); ctx.StoreValue(builderInstance); if (AppendToCollection) { Compiler.CodeLabel done = ctx.DefineLabel(); if (!ExpectedType.IsValueType) { ctx.LoadValue(value); ctx.BranchIfFalse(done, false); // old value null; nothing to add } PropertyInfo prop = Helpers.GetProperty(ExpectedType, "Length", false) ?? Helpers.GetProperty(ExpectedType, "Count", false); #if !NO_GENERICS if (prop == null) { prop = Helpers.GetProperty(ResolveIReadOnlyCollection(ExpectedType, Tail.ExpectedType), "Count", false); } #endif ctx.LoadAddress(value, value.Type); ctx.EmitCall(Helpers.GetGetMethod(prop, false, false)); ctx.BranchIfFalse(done, false); // old list is empty; nothing to add if (_addRange != null) { ctx.LoadValue(builderInstance); ctx.LoadValue(value); ctx.EmitCall(_addRange); if (_addRange.ReturnType != null && _add.ReturnType != voidType) { ctx.DiscardValue(); } } else { // loop and call Add repeatedly MethodInfo moveNext, current, getEnumerator = GetEnumeratorInfo(ctx.Model, out moveNext, out current); Helpers.DebugAssert(moveNext != null); Helpers.DebugAssert(current != null); Helpers.DebugAssert(getEnumerator != null); Type enumeratorType = getEnumerator.ReturnType; using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType)) { ctx.LoadAddress(value, ExpectedType); ctx.EmitCall(getEnumerator); ctx.StoreValue(iter); using (ctx.Using(iter)) { Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel(); ctx.Branch(next, false); ctx.MarkLabel(body); ctx.LoadAddress(builderInstance, builderInstance.Type); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(current); ctx.EmitCall(_add); if (_add.ReturnType != null && _add.ReturnType != voidType) { ctx.DiscardValue(); } ctx.MarkLabel(@next); ctx.LoadAddress(iter, enumeratorType); ctx.EmitCall(moveNext); ctx.BranchIfTrue(body, false); } } } ctx.MarkLabel(done); } ListHelpers.EmitRead( ctx.G, null, null, o => { using (ctx.StartDebugBlockAuto(this, "add")) { ctx.LoadAddress(builderInstance, builderInstance.Type); ctx.LoadValue(o); ctx.EmitCall(_add); if (_add.ReturnType != null && _add.ReturnType != voidType) { ctx.DiscardValue(); } } }); ctx.LoadAddress(builderInstance, builderInstance.Type); ctx.EmitCall(_finish); if (ExpectedType != _finish.ReturnType) { ctx.Cast(ExpectedType); } ctx.StoreValue(value); ctx.G.Reader.NoteReservedTrappedObject(trappedKey, value); if (EmitReadReturnsValue) { ctx.LoadValue(value); } } } }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using (Compiler.Local loc = ctx.GetLocalWithValue(ExpectedType, valueFrom)) { if (Tail.RequiresOldValue) { ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(field); } // value is either now on the stack or not needed ctx.ReadNullCheckedTail(field.FieldType, Tail, null); if (Tail.ReturnsValue) { using (Compiler.Local newVal = new Compiler.Local(ctx, field.FieldType)) { ctx.StoreValue(newVal); if (field.FieldType.IsValueType) { ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(newVal); ctx.StoreValue(field); } else { Compiler.CodeLabel allDone = ctx.DefineLabel(); ctx.LoadValue(newVal); ctx.BranchIfFalse(allDone, true); // interpret null as "don't assign" ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(newVal); ctx.StoreValue(field); ctx.MarkLabel(allDone); } } } } }
void IProtoSerializer.EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { ProtoTypeCode typeCode = GetTypeCode(); if (map == null) { ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int))); ctx.ConvertFromInt32(typeCode, false); } else { int[] wireValues = new int[map.Length]; object[] values = new object[map.Length]; for (int i = 0; i < map.Length; i++) { wireValues[i] = map[i].WireValue; values[i] = map[i].RawValue; } using (Compiler.Local result = new Compiler.Local(ctx, ExpectedType)) using (Compiler.Local wireValue = new Compiler.Local(ctx, ctx.MapType(typeof(int)))) { ctx.EmitBasicRead("ReadInt32", ctx.MapType(typeof(int))); ctx.StoreValue(wireValue); Compiler.CodeLabel @continue = ctx.DefineLabel(); foreach (BasicList.Group group in BasicList.GetContiguousGroups(wireValues, values)) { Compiler.CodeLabel tryNextGroup = ctx.DefineLabel(); int groupItemCount = group.Items.Count; if (groupItemCount == 1) { // discreet group; use an equality test ctx.LoadValue(wireValue); ctx.LoadValue(group.First); Compiler.CodeLabel processThisValue = ctx.DefineLabel(); ctx.BranchIfEqual(processThisValue, true); ctx.Branch(tryNextGroup, false); WriteEnumValue(ctx, typeCode, processThisValue, @continue, group.Items[0], @result); } else { // implement as a jump-table-based switch ctx.LoadValue(wireValue); ctx.LoadValue(group.First); ctx.Subtract(); // jump-tables are zero-based Compiler.CodeLabel[] jmp = new Compiler.CodeLabel[groupItemCount]; for (int i = 0; i < groupItemCount; i++) { jmp[i] = ctx.DefineLabel(); } ctx.Switch(jmp); // write the default... ctx.Branch(tryNextGroup, false); for (int i = 0; i < groupItemCount; i++) { WriteEnumValue(ctx, typeCode, jmp[i], @continue, group.Items[i], @result); } } ctx.MarkLabel(tryNextGroup); } // throw source.CreateEnumException(ExpectedType, wireValue); ctx.LoadReaderWriter(); ctx.LoadValue(ExpectedType); ctx.LoadValue(wireValue); ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("ThrowEnumException")); ctx.MarkLabel(@continue); ctx.LoadValue(result); } } }
void IProtoTypeSerializer.EmitCallback(Compiler.CompilerContext ctx, Compiler.Local valueFrom, TypeModel.CallbackType callbackType) { bool actuallyHasInheritance = false; if (CanHaveInheritance) { for (int i = 0; i < serializers.Length; i++) { IProtoSerializer ser = serializers[i]; if (ser.ExpectedType != forType && ((IProtoTypeSerializer)ser).HasCallbacks(callbackType)) { actuallyHasInheritance = true; } } } Helpers.DebugAssert(((IProtoTypeSerializer)this).HasCallbacks(callbackType), "Shouldn't be calling this if there is nothing to do"); MethodInfo method = callbacks?[callbackType]; if (method == null && !actuallyHasInheritance) { return; } if (!method.IsStatic) { ctx.LoadAddress(valueFrom, ExpectedType); } EmitInvokeCallback(ctx, method, actuallyHasInheritance, null, forType); if (actuallyHasInheritance) { // Make sure that the object is on the top of the stack. // If the callback is non-static, it's already here from the EmitInvokeCallback call. if (method.IsStatic) { ctx.LoadAddress(valueFrom, ExpectedType); } Compiler.CodeLabel @break = ctx.DefineLabel(); for (int i = 0; i < serializers.Length; i++) { IProtoSerializer ser = serializers[i]; IProtoTypeSerializer typeser; Type serType = ser.ExpectedType; if (serType != forType && (typeser = (IProtoTypeSerializer)ser).HasCallbacks(callbackType)) { Compiler.CodeLabel ifMatch = ctx.DefineLabel(), nextTest = ctx.DefineLabel(); ctx.CopyValue(); ctx.TryCast(serType); ctx.CopyValue(); ctx.BranchIfTrue(ifMatch, true); ctx.DiscardValue(); ctx.Branch(nextTest, false); ctx.MarkLabel(ifMatch); typeser.EmitCallback(ctx, null, callbackType); ctx.Branch(@break, false); ctx.MarkLabel(nextTest); } } ctx.MarkLabel(@break); ctx.DiscardValue(); } }
public void EmitRead(Compiler.CompilerContext ctx, Compiler.Local incoming) { using (Compiler.Local objValue = ctx.GetLocalWithValue(ExpectedType, incoming)) { Compiler.Local[] locals = new Compiler.Local[members.Length]; try { for (int i = 0; i < locals.Length; i++) { Type type = GetMemberType(i); bool store = true; locals[i] = new Compiler.Local(ctx, type); if (!ExpectedType.IsValueType) { // value-types always read the old value if (type.IsValueType) { switch (Helpers.GetTypeCode(type)) { case ProtoTypeCode.Boolean: case ProtoTypeCode.Byte: case ProtoTypeCode.Int16: case ProtoTypeCode.Int32: case ProtoTypeCode.SByte: case ProtoTypeCode.UInt16: case ProtoTypeCode.UInt32: ctx.LoadValue(0); break; case ProtoTypeCode.Int64: case ProtoTypeCode.UInt64: ctx.LoadValue(0L); break; case ProtoTypeCode.Single: ctx.LoadValue(0.0F); break; case ProtoTypeCode.Double: ctx.LoadValue(0.0D); break; case ProtoTypeCode.Decimal: ctx.LoadValue(0M); break; case ProtoTypeCode.Guid: ctx.LoadValue(Guid.Empty); break; default: ctx.LoadAddress(locals[i], type); ctx.EmitCtor(type); store = false; break; } } else { ctx.LoadNullRef(); } if (store) { ctx.StoreValue(locals[i]); } } } Compiler.CodeLabel skipOld = ExpectedType.IsValueType ? new Compiler.CodeLabel() : ctx.DefineLabel(); if (!ExpectedType.IsValueType) { ctx.LoadAddress(objValue, ExpectedType); ctx.BranchIfFalse(skipOld, false); } for (int i = 0; i < members.Length; i++) { ctx.LoadAddress(objValue, ExpectedType); switch (members[i].MemberType) { case MemberTypes.Field: ctx.LoadValue((FieldInfo)members[i]); break; case MemberTypes.Property: ctx.LoadValue((PropertyInfo)members[i]); break; } ctx.StoreValue(locals[i]); } if (!ExpectedType.IsValueType) { ctx.MarkLabel(skipOld); } using (Compiler.Local fieldNumber = new Compiler.Local(ctx, ctx.MapType(typeof(int)))) { Compiler.CodeLabel @continue = ctx.DefineLabel(), processField = ctx.DefineLabel(), notRecognised = ctx.DefineLabel(); ctx.Branch(@continue, false); Compiler.CodeLabel[] handlers = new Compiler.CodeLabel[members.Length]; for (int i = 0; i < members.Length; i++) { handlers[i] = ctx.DefineLabel(); } ctx.MarkLabel(processField); ctx.LoadValue(fieldNumber); ctx.LoadValue(1); ctx.Subtract(); // jump-table is zero-based ctx.Switch(handlers); // and the default: ctx.Branch(notRecognised, false); for (int i = 0; i < handlers.Length; i++) { ctx.MarkLabel(handlers[i]); IProtoSerializer tail = tails[i]; Compiler.Local oldValIfNeeded = tail.RequiresOldValue ? locals[i] : null; ctx.ReadNullCheckedTail(locals[i].Type, tail, oldValIfNeeded); if (tail.ReturnsValue) { if (locals[i].Type.IsValueType) { ctx.StoreValue(locals[i]); } else { Compiler.CodeLabel hasValue = ctx.DefineLabel(), allDone = ctx.DefineLabel(); ctx.CopyValue(); ctx.BranchIfTrue(hasValue, true); // interpret null as "don't assign" ctx.DiscardValue(); ctx.Branch(allDone, true); ctx.MarkLabel(hasValue); ctx.StoreValue(locals[i]); ctx.MarkLabel(allDone); } } ctx.Branch(@continue, false); } ctx.MarkLabel(notRecognised); ctx.LoadReaderWriter(); ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField")); ctx.MarkLabel(@continue); ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int))); ctx.CopyValue(); ctx.StoreValue(fieldNumber); ctx.LoadValue(0); ctx.BranchIfGreater(processField, false); } for (int i = 0; i < locals.Length; i++) { ctx.LoadValue(locals[i]); } ctx.EmitCtor(ctor); ctx.StoreValue(objValue); } finally { for (int i = 0; i < locals.Length; i++) { if (locals[i] != null) { locals[i].Dispose(); // release for re-use } } } } }
private void WriteFieldHandler( Compiler.CompilerContext ctx, Type expected, Compiler.Local loc, Compiler.CodeLabel handler, Compiler.CodeLabel @continue, IProtoSerializer serializer) { ctx.MarkLabel(handler); Type serType = serializer.ExpectedType; if (serType == ExpectedType) { EmitCreateIfNull(ctx, loc); serializer.EmitRead(ctx, loc); } else { //RuntimeTypeModel rtm = (RuntimeTypeModel)ctx.Model; if (((IProtoTypeSerializer)serializer).CanCreateInstance()) { Compiler.CodeLabel allDone = ctx.DefineLabel(); ctx.LoadValue(loc); ctx.BranchIfFalse(allDone, false); // null is always ok ctx.LoadValue(loc); ctx.TryCast(serType); ctx.BranchIfTrue(allDone, false); // not null, but of the correct type // otherwise, need to convert it ctx.LoadReader(false); ctx.LoadValue(loc); ((IProtoTypeSerializer)serializer).EmitCreateInstance(ctx); ctx.EmitCall(typeof(ProtoReader).GetMethod("Merge", new[] { typeof(ProtoReader), typeof(object), typeof(object) })); ctx.Cast(expected); ctx.StoreValue(loc); // Merge always returns a value // nothing needs doing ctx.MarkLabel(allDone); } if (Helpers.IsValueType(serType)) { Compiler.CodeLabel initValue = ctx.DefineLabel(); Compiler.CodeLabel hasValue = ctx.DefineLabel(); using (Compiler.Local emptyValue = new Compiler.Local(ctx, serType)) { ctx.LoadValue(loc); ctx.BranchIfFalse(initValue, false); ctx.LoadValue(loc); ctx.CastFromObject(serType); ctx.Branch(hasValue, false); ctx.MarkLabel(initValue); ctx.InitLocal(serType, emptyValue); ctx.LoadValue(emptyValue); ctx.MarkLabel(hasValue); } } else { ctx.LoadValue(loc); ctx.Cast(serType); } serializer.EmitRead(ctx, null); } if (serializer.ReturnsValue) { // update the variable if (Helpers.IsValueType(serType)) { // but box it first in case of value type ctx.CastToObject(serType); } ctx.StoreValue(loc); } ctx.Branch(@continue, false); // "continue" }
private Compiler.CompilerContext WriteSerializeDeserialize(string assemblyName, TypeBuilder type, SerializerPair[] methodPairs, Compiler.CompilerContext.ILVersion ilVersion, ref ILGenerator il) { il = Override(type, "Serialize"); Compiler.CompilerContext ctx = new Compiler.CompilerContext(il, false, true, methodPairs, this, ilVersion, assemblyName, MapType(typeof(object))); // arg0 = this, arg1 = key, arg2=obj, arg3=dest Compiler.CodeLabel[] jumpTable = new Compiler.CodeLabel[types.Count]; for (int i = 0; i < jumpTable.Length; i++) { jumpTable[i] = ctx.DefineLabel(); } il.Emit(OpCodes.Ldarg_1); ctx.Switch(jumpTable); ctx.Return(); for (int i = 0; i < jumpTable.Length; i++) { SerializerPair pair = methodPairs[i]; ctx.MarkLabel(jumpTable[i]); il.Emit(OpCodes.Ldarg_2); ctx.CastFromObject(pair.Type.Type); il.Emit(OpCodes.Ldarg_3); il.EmitCall(OpCodes.Call, pair.Serialize, null); ctx.Return(); } il = Override(type, "Deserialize"); ctx = new Compiler.CompilerContext(il, false, false, methodPairs, this, ilVersion, assemblyName, MapType(typeof(object))); // arg0 = this, arg1 = key, arg2=obj, arg3=source for (int i = 0; i < jumpTable.Length; i++) { jumpTable[i] = ctx.DefineLabel(); } il.Emit(OpCodes.Ldarg_1); ctx.Switch(jumpTable); ctx.LoadNullRef(); ctx.Return(); for (int i = 0; i < jumpTable.Length; i++) { SerializerPair pair = methodPairs[i]; ctx.MarkLabel(jumpTable[i]); Type keyType = pair.Type.Type; if (keyType.IsValueType) { il.Emit(OpCodes.Ldarg_2); il.Emit(OpCodes.Ldarg_3); il.EmitCall(OpCodes.Call, EmitBoxedSerializer(type, i, keyType, methodPairs, this, ilVersion, assemblyName), null); ctx.Return(); } else { il.Emit(OpCodes.Ldarg_2); ctx.CastFromObject(keyType); il.Emit(OpCodes.Ldarg_3); il.EmitCall(OpCodes.Call, pair.Deserialize, null); ctx.Return(); } } return ctx; }
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom) { using Compiler.Local loc = ctx.GetLocalWithValue(ExpectedType, valueFrom); if (Tail.RequiresOldValue) { ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(field); } // value is either now on the stack or not needed ctx.ReadNullCheckedTail(field.FieldType, Tail, null); // the field could be a backing field that needs to be raised back to // the property if we're doing a full compile MemberInfo member = field; ctx.CheckAccessibility(ref member); bool writeValue = member is FieldInfo; if (writeValue) { if (Tail.ReturnsValue) { var localType = PropertyDecorator.ChooseReadLocalType(field.FieldType, Tail.ExpectedType); using Compiler.Local newVal = new Compiler.Local(ctx, localType); ctx.StoreValue(newVal); if (field.FieldType.IsValueType) { ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(newVal); ctx.StoreValue(field); } else { Compiler.CodeLabel allDone = ctx.DefineLabel(); ctx.LoadValue(newVal); ctx.BranchIfFalse(allDone, true); // interpret null as "don't assign" ctx.LoadAddress(loc, ExpectedType); ctx.LoadValue(newVal); // cast if needed (this is mostly for ReadMap/ReadRepeated) if (!field.FieldType.IsValueType && !localType.IsValueType && !field.FieldType.IsAssignableFrom(localType)) { ctx.Cast(field.FieldType); } ctx.StoreValue(field); ctx.MarkLabel(allDone); } } } else { // can't use result if (Tail.ReturnsValue) { ctx.DiscardValue(); } } }
private static MethodBuilder EmitBoxedSerializer(TypeBuilder type, int i, Type valueType, SerializerPair[] methodPairs, TypeModel model, Compiler.CompilerContext.ILVersion ilVersion, string assemblyName) { MethodInfo dedicated = methodPairs[i].Deserialize; MethodBuilder boxedSerializer = type.DefineMethod("_" + i.ToString(), MethodAttributes.Static, CallingConventions.Standard, model.MapType(typeof(object)), new Type[] { model.MapType(typeof(object)), model.MapType(typeof(ProtoReader)) }); Compiler.CompilerContext ctx = new Compiler.CompilerContext(boxedSerializer.GetILGenerator(), true, false, methodPairs, model, ilVersion, assemblyName, model.MapType(typeof(object))); ctx.LoadValue(ctx.InputValue); Compiler.CodeLabel @null = ctx.DefineLabel(); ctx.BranchIfFalse(@null, true); Type mappedValueType = valueType; ctx.LoadValue(ctx.InputValue); ctx.CastFromObject(mappedValueType); ctx.LoadReaderWriter(); ctx.EmitCall(dedicated); ctx.CastToObject(mappedValueType); ctx.Return(); ctx.MarkLabel(@null); using (Compiler.Local typedVal = new Compiler.Local(ctx, mappedValueType)) { // create a new valueType ctx.LoadAddress(typedVal, mappedValueType); ctx.EmitCtor(mappedValueType); ctx.LoadValue(typedVal); ctx.LoadReaderWriter(); ctx.EmitCall(dedicated); ctx.CastToObject(mappedValueType); ctx.Return(); } return boxedSerializer; }
private void EmitWriteArrayLoop(Compiler.CompilerContext ctx, Compiler.Local i, Compiler.Local arr) { // i = 0 ctx.LoadValue(0); ctx.StoreValue(i); // range test is last (to minimise branches) Compiler.CodeLabel loopTest = ctx.DefineLabel(), processItem = ctx.DefineLabel(); ctx.Branch(loopTest, false); ctx.MarkLabel(processItem); // {...} ctx.LoadArrayValue(arr, i); if (SupportNull) { Tail.EmitWrite(ctx, null); } else { ctx.WriteNullCheckedTail(itemType, Tail, null); } // i++ ctx.LoadValue(i); ctx.LoadValue(1); ctx.Add(); ctx.StoreValue(i); // i < arr.Length ctx.MarkLabel(loopTest); ctx.LoadValue(i); ctx.LoadLength(arr, false); ctx.BranchIfLess(processItem, false); }