private void EmitReadArray(Compiler.CompilerContext ctx, Compiler.Local list, Compiler.Local oldArr, Compiler.Local newArr, IProtoSerializer tail, MethodInfo add, Type listType) { Compiler.CodeLabel readPacked = packedWireType == WireType.None ? new Compiler.CodeLabel() : ctx.DefineLabel(); Compiler.CodeLabel @end = ctx.DefineLabel(); if (packedWireType != WireType.None) { ctx.LoadReaderWriter(); ctx.LoadValue(typeof(ProtoReader).GetProperty("WireType")); ctx.LoadValue((int)WireType.String); ctx.BranchIfEqual(readPacked, false); } using (Compiler.Local fieldNumber = new Compiler.Local(ctx, typeof(int))) { // int fieldNumber = source.FieldNumber; ctx.LoadReaderWriter(); ctx.LoadValue(typeof (ProtoReader).GetProperty("FieldNumber")); ctx.StoreValue(fieldNumber); using (Compiler.Local readObject = new Compiler.Local(ctx, typeof (bool))) using (Compiler.Local arrayKey = new Compiler.Local(ctx, typeof (int))) { // bool readObject = true; ctx.LoadValue(true); ctx.StoreValue(readObject); // value = value ?? Array.CreateInstance(itemType, 0); Compiler.CodeLabel @endCreateInstance = ctx.DefineLabel(); ctx.LoadValue(oldArr); ctx.LoadNullRef(); ctx.TestEqual(); ctx.BranchIfFalse(@endCreateInstance, true); ctx.LoadValue(itemType); ctx.LoadValue(0); ctx.EmitCall(typeof(Array).GetMethod("CreateInstance", new Type[] { typeof(Type), typeof(int) })); ctx.StoreValue(oldArr); ctx.MarkLabel(@endCreateInstance); if (AsReference) { using (Compiler.Local objectKey = new Compiler.Local(ctx, typeof(int))) { //int objectKey = source.ReadInt32(); ctx.LoadReaderWriter(); ctx.EmitCall(typeof(ProtoReader).GetMethod("ReadInt32")); ctx.StoreValue(objectKey); Compiler.CodeLabel @ifNotThere = ctx.DefineLabel(); Compiler.CodeLabel @endIf = ctx.DefineLabel(); //if (objectKey > 0) ctx.LoadValue(objectKey); ctx.LoadValue(0); ctx.BranchIfLessOrEqual(@ifNotThere, true); // value = source.NetCache.GetKeyedObject(objectKey); ctx.LoadReaderWriter(); ctx.LoadValue(typeof(ProtoReader).GetProperty("NetCache")); ctx.LoadValue(objectKey); ctx.EmitCall(typeof(NetObjectCache).GetMethod("GetKeyedObject")); ctx.StoreValue(oldArr); //readObject = false; ctx.LoadValue(false); ctx.StoreValue(readObject); //} ctx.Branch(@endIf, true); //else ctx.MarkLabel(@ifNotThere); //bool dummy; //arrayKey = source.NetCache.AddObjectKey(value, out dummy); using (Compiler.Local dummy = new Compiler.Local(ctx, typeof(bool))) { ctx.LoadReaderWriter(); ctx.LoadValue(typeof(ProtoReader).GetProperty("NetCache")); ctx.LoadValue(oldArr); ctx.LoadAddress(dummy, typeof(bool)); ctx.EmitCall(typeof(NetObjectCache).GetMethod("AddObjectKey", new Type[] { typeof(object), typeof(bool).MakeByRefType() })); ctx.StoreValue(arrayKey); } ctx.MarkLabel(@endIf); } } else { using (Compiler.Local readValue = new Compiler.Local(ctx, typeof(int))) { ctx.LoadReaderWriter(); ctx.EmitCall(typeof(ProtoReader).GetMethod("ReadInt32")); ctx.StoreValue(readValue); Compiler.CodeLabel @codeContinues = ctx.DefineLabel(); ctx.LoadValue(readValue); ctx.LoadValue(0); ctx.BranchIfEqual(@codeContinues, true); ctx.LoadValue(oldArr); ctx.Branch(@end, false); ctx.MarkLabel(@codeContinues); } } /* if (readObject) { while (source.TryReadFieldHeader(field)) { list.Add(Tail.Read(null, source)); } */ Compiler.CodeLabel @finishRead = ctx.DefineLabel(); ctx.LoadValue(readObject); ctx.BranchIfFalse(@finishRead, false); Compiler.CodeLabel @beginWhileLoop = ctx.DefineLabel(); Compiler.CodeLabel @endWhileLoop = ctx.DefineLabel(); ctx.MarkLabel(@beginWhileLoop); ctx.LoadReaderWriter(); ctx.LoadValue(fieldNumber); ctx.EmitCall(typeof (ProtoReader).GetMethod("TryReadFieldHeader")); ctx.BranchIfFalse(@endWhileLoop, false); ListDecorator.EmitReadAndAddItem(ctx, list, tail, add, null); ctx.Branch(@beginWhileLoop, false); ctx.MarkLabel(@endWhileLoop); // Array newArray = Array.CreateInstance(itemType, list.Count); ctx.LoadValue(itemType); ctx.LoadValue(list); ctx.LoadValue(listType.GetProperty("Count")); ctx.EmitCall(typeof(Array).GetMethod("CreateInstance", new Type[] { typeof(Type), typeof(int) })); ctx.StoreValue(newArr); // list.CopyTo(newArray, 0); ctx.LoadValue(list); ctx.LoadValue(newArr); ctx.LoadValue(0); ctx.EmitCall(listType.GetMethod("CopyTo", new Type[] { ExpectedType, typeof(int) })); if (AsReference) { //source.NetCache.UpdateKeyedObject(arrayKey, value, newArray); ctx.LoadReaderWriter(); ctx.LoadValue(typeof(ProtoReader).GetProperty("NetCache")); ctx.LoadValue(arrayKey); ctx.LoadValue(oldArr); ctx.LoadValue(newArr); ctx.EmitCall(typeof(NetObjectCache).GetMethod("UpdateKeyedObject")); } //value = newArray; ctx.LoadValue(newArr); ctx.StoreValue(oldArr); ctx.MarkLabel(@finishRead); ctx.LoadValue(oldArr); ctx.MarkLabel(@end); } } if (packedWireType != WireType.None) { Compiler.CodeLabel allDone = ctx.DefineLabel(); ctx.Branch(allDone, false); ctx.MarkLabel(readPacked); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("StartSubItem")); Compiler.CodeLabel testForData = ctx.DefineLabel(), noMoreData = ctx.DefineLabel(); ctx.MarkLabel(testForData); ctx.LoadValue((int) packedWireType); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("HasSubValue")); ctx.BranchIfFalse(noMoreData, false); ListDecorator.EmitReadAndAddItem(ctx, list, tail, add, null); ctx.Branch(testForData, false); ctx.MarkLabel(noMoreData); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("EndSubItem")); EmitReadEndPacked(ctx, list, oldArr, newArr, listType); ctx.MarkLabel(allDone); } }
public void EmitRead(Compiler.CompilerContext ctx, Compiler.Local incoming) { bool issueReferenceDirectives = !baseTupleAsReference && asReference; Compiler.CodeLabel @end = ctx.DefineLabel(); using (Compiler.Local tupleKey = new Compiler.Local(ctx, typeof(int))) using (Compiler.Local oldTuple = new Compiler.Local(ctx, typeof(object))) using (Compiler.Local objValue = ctx.GetLocalWithValue(ExpectedType, incoming)) { Compiler.Local[] locals = new Compiler.Local[members.Length]; try { if (issueReferenceDirectives) { //int tupleKey = 0; ctx.LoadValue(0); ctx.StoreValue(tupleKey); //object oldTuple = null; ctx.LoadNullRef(); ctx.StoreValue(oldTuple); //tupleKey = (int)source.ReadUInt32(); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("ReadUInt32")); //ctx.CastToObject(typeof (int)); ctx.StoreValue(tupleKey); Compiler.CodeLabel @objectNotFound = ctx.DefineLabel(); ctx.LoadValue(tupleKey); ctx.LoadValue(0); ctx.BranchIfEqual(@objectNotFound, true); //// return source.NetCache.GetKeyedObject(tupleKey); ctx.LoadReaderWriter(); ctx.LoadValue(typeof (ProtoReader).GetProperty("NetCache")); ctx.LoadValue(tupleKey); ctx.EmitCall(typeof (NetObjectCache).GetMethod("GetKeyedObject")); ctx.CastFromObject(ExpectedType); ctx.StoreValue(objValue); ctx.Branch(@end, false); ctx.MarkLabel(@objectNotFound); ctx.EmitCtor(typeof (object)); ctx.StoreValue(oldTuple); // tupleKey = source.NetCache.AddObjectKey(oldTuple, out dummy); using (Compiler.Local dummy = new Compiler.Local(ctx, typeof (bool))) { ctx.LoadReaderWriter(); ctx.LoadValue(typeof (ProtoReader).GetProperty("NetCache")); ctx.LoadValue(oldTuple); ctx.LoadAddress(dummy, typeof (bool)); ctx.EmitCall(typeof (NetObjectCache).GetMethod("AddObjectKey", new Type[] { typeof(object), typeof(bool).MakeByRefType() })); ctx.StoreValue(tupleKey); } } 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, typeof (int))) using (Compiler.Local j = new Compiler.Local(ctx, typeof (int))) { // j = 0 ctx.LoadValue(0); ctx.StoreValue(j); Compiler.CodeLabel @continue = ctx.DefineLabel(), processField = ctx.DefineLabel(), notRecognised = ctx.DefineLabel(), @endWhileLoop = 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(typeof (ProtoReader).GetMethod("SkipField")); ctx.MarkLabel(@continue); // j < values.Length ctx.LoadValue(j); ctx.LoadValue(members.Length); ctx.BranchIfGreaterOrEqual(@endWhileLoop, false); //j++ ctx.LoadValue(j); ctx.LoadValue(1); ctx.Add(); ctx.StoreValue(j); // source.ReadNextFieldHack() > 0 ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("ReadNextFieldHack")); ctx.LoadValue(0); ctx.BranchIfLessOrEqual(@endWhileLoop, true); // field = source.ReadFieldHeader(); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("ReadFieldHeader")); ctx.StoreValue(fieldNumber); ctx.Branch(processField, false); ctx.MarkLabel(@endWhileLoop); } for (int i = 0; i < locals.Length; i++) { ctx.LoadValue(locals[i]); } ctx.EmitCtor(ctor); ctx.StoreValue(objValue); if (issueReferenceDirectives) { //source.NetCache.UpdateKeyedObject(tupleKey, oldTuple, result); ctx.LoadReaderWriter(); ctx.LoadValue(typeof (ProtoReader).GetProperty("NetCache")); ctx.LoadValue(tupleKey); ctx.LoadValue(oldTuple); ctx.LoadValue(objValue); ctx.CastToObject(ExpectedType); ctx.EmitCall(typeof (NetObjectCache).GetMethod("UpdateKeyedObject")); } if (forceIssueFakeHeader) { //source.ReadEndGroupFieldHeaderHack(); ctx.LoadReaderWriter(); ctx.EmitCall(typeof (ProtoReader).GetMethod("ReadEndGroupFieldHeaderHack")); } ctx.MarkLabel(@end); ctx.LoadValue(objValue); } finally { for (int i = 0; i < locals.Length; i++) { if (locals[i] != null) locals[i].Dispose(); // release for re-use } } } }