void EmitWriteContent(SerializerCodeGen g, Local enumerable, Operand fieldNumber, bool pack, Action first = null)
{
Type listType = g.ctx.MapType(typeof(IList <>)).MakeGenericType(_itemType);
if (_skipIList || (!enumerable.Type.IsArray && !Helpers.IsAssignableFrom(listType, enumerable.Type)))
{
EmitWriteContentEnumerable(g, enumerable, fieldNumber, pack, first);
return;
}
using (var list = g.ctx.Local(listType))
using (var len = g.ctx.Local(typeof(int)))
using (var i = g.ctx.Local(typeof(int)))
{
g.Assign(list, enumerable.AsOperand.Cast(listType));
g.Assign(len, list.AsOperand.Property("Count"));
g.If(len.AsOperand > 0);
{
first?.Invoke();
g.For(i.AsOperand.Assign(0), i.AsOperand < len.AsOperand, i.AsOperand.Increment());
{
EmitWriteElement(g, list.AsOperand[i], fieldNumber, pack, i.AsOperand == 0);
}
g.End();
}
g.End();
if (enumerable.Type.IsValueType)
{
g.Assign(enumerable, list);
}
}
}
void EmitWriteContentEnumerable(SerializerCodeGen g, Local enumerable, Operand fieldNumber, bool pack, Action first = null)
{
Type enumerableGenericType = g.ctx.MapType(typeof(IEnumerable <>)).MakeGenericType(_itemType);
bool castNeeded = !Helpers.IsAssignableFrom(enumerableGenericType, enumerable.Type);
using (var isFirst = g.ctx.Local(typeof(bool)))
{
g.Assign(isFirst, true);
var el = g.ForEach(castNeeded ? g.ctx.MapType(typeof(object)) : _itemType, enumerable);
{
g.If(isFirst);
{
first?.Invoke();
}
g.End();
EmitWriteElement(g, castNeeded ? el.Cast(_itemType) : el, fieldNumber, pack, isFirst);
g.Assign(isFirst, false);
}
g.End();
}
}
void EmitRead_CreateInstance(SerializerCodeGen g, Local valueArr, Local[] lengths, Operand optionalOutOldFirstDimLength, Local outResult)
{
using (g.ctx.StartDebugBlockAuto(this))
{
if (AppendToCollection)
{
g.If(valueArr.AsOperand != null);
{
g.AssignAdd(lengths[0], optionalOutOldFirstDimLength.Assign(valueArr.AsOperand.Invoke("GetLength", 0)));
}
g.End();
}
g.Assign(outResult, g.ExpressionFactory.NewArray(_itemType, lengths.Select(l => (Operand)l.AsOperand).ToArray()));
g.Reader.NoteObject(outResult);
if (AppendToCollection)
{
g.If(valueArr.AsOperand != null && optionalOutOldFirstDimLength > 0);
{
g.Invoke(typeof(Array), "Copy", valueArr, outResult, valueArr.AsOperand.Property("Length"));
}
g.End();
}
}
}
void EmitWrite(SerializerCodeGen g, Label?endLabel, MetaType metaType, Local actualValue, Local actualType, int recursionLevel = 0)
{
using (g.ctx.StartDebugBlockAuto(this, metaType.GetFinalSettingsCopy().Name + ", level = " + recursionLevel))
{
WriterGen dest = g.Writer;
var breakLabel = g.DefineLabel();
g.If(metaType.Type != actualType.AsOperand);
{
foreach (var subType in metaType.GetSubtypes().OrderBy(st => st.FieldNumber))
{
MetaType derivedType = subType.DerivedType;
if (derivedType.Type == metaType.Type)
{
continue;
}
g.If(actualValue.AsOperand.Is(derivedType.Type));
{
if (recursionLevel == 0)
{
g.If(derivedType.Type == actualType.AsOperand);
{
dest.WriteFieldHeaderComplete(WireType.Variant);
dest.WriteInt32(subType.FieldNumber + 1);
g.Goto(endLabel ?? breakLabel);
}
g.End();
using (var token = g.ctx.Local(typeof(SubItemToken)))
{
g.Assign(token, g.WriterFunc.StartSubItem(null, true));
dest.WriteFieldHeaderIgnored(WireType.Variant);
dest.WriteInt32(subType.FieldNumber + 1);
EmitWrite(g, null, derivedType, actualValue, actualType, 1);
dest.EndSubItem(token);
}
}
else
{
dest.WriteFieldHeaderIgnored(WireType.Variant);
dest.WriteInt32(subType.FieldNumber + 1);
EmitWrite(g, null, derivedType, actualValue, actualType, recursionLevel + 1);
}
g.Goto(endLabel ?? breakLabel);
}
g.End();
}
}
g.End();
g.MarkLabel(breakLabel);
if (recursionLevel == 0)
{
dest.WriteFieldHeaderComplete(WireType.Variant);
dest.WriteInt32(0);
}
}
}
void EmitTryRead(SerializerCodeGen g, Local fieldNumber, MetaType metaType, int recursionLevel, Action <MetaType> returnGen)
{
Debug.Assert(metaType != null);
using (g.ctx.StartDebugBlockAuto(this, metaType.GetFinalSettingsCopy().Name + ", level = " + recursionLevel))
{
SubType[] subTypes = metaType.GetSubtypes();
if (recursionLevel == 0)
{
g.If(g.ReaderFunc.WireType() != WireType.String);
{
g.Assign(fieldNumber, g.ReaderFunc.ReadInt32() - 1);
EmitTryRead_GenSwitch(g, fieldNumber, metaType, subTypes, returnGen);
}
g.End();
}
Local token = null;
if (recursionLevel == 0)
{
token = new Local(g.ctx, typeof(SubItemToken));
g.Assign(token, g.ReaderFunc.StartSubItem());
returnGen = (r => g.Reader.EndSubItem(token)) + returnGen;
}
g.If(!g.ReaderFunc.HasSubValue_bool(WireType.Variant));
{
returnGen(metaType);
}
g.End();
g.Assign(fieldNumber, g.ReaderFunc.ReadInt32() - 1);
EmitTryRead_GenSwitch(
g,
fieldNumber,
metaType,
subTypes,
r =>
{
if (r == metaType)
{
returnGen(metaType);
}
else
{
EmitTryRead(g, fieldNumber, r, recursionLevel + 1, returnGen);
}
});
token?.Dispose();
}
}
void EmitWriteElement(SerializerCodeGen g, Operand obj, Operand fieldNumber, bool pack, Operand isFirst)
{
if (_protoCompatibility)
{
if (!pack)
{
g.Writer.WriteFieldHeaderBegin(fieldNumber);
}
else
{
g.Writer.WriteFieldHeaderBeginIgnored();
}
}
else
{
// this can only be supported when wire type of elements will be the same each time and no field cancellations
// we write only first header to get wire type
// the difference between standard pack and this
// is that we write wiretype here at the first time
if (pack)
{
g.If(isFirst);
}
g.Writer.WriteFieldHeaderBegin(fieldNumber);
if (pack)
{
g.Else();
g.Writer.WriteFieldHeaderBeginIgnored();
g.End();
}
}
g.LeaveNextReturnOnStack();
g.Eval(obj);
_tail.EmitWrite(g.ctx, null);
}
void EmitTryRead_GenSwitch(SerializerCodeGen g, Local fieldNumber, MetaType metaType, SubType[] subTypes, Action <MetaType> returnGen)
{
using (g.ctx.StartDebugBlockAuto(this))
{
if (subTypes.Length == 0)
{
returnGen(metaType);
return;
}
// may be optimized to check -1
g.ctx.MarkDebug("// Start of switch");
g.Switch(fieldNumber);
{
foreach (var subType in subTypes)
{
g.ctx.MarkDebug("// Switch case");
g.Case(subType.FieldNumber);
returnGen(subType.DerivedType);
g.ctx.MarkDebug("// Switch case - break");
g.Break();
}
g.ctx.MarkDebug("// Default switch case");
g.DefaultCase();
returnGen(metaType);
g.ctx.MarkDebug("// Default switch case - break");
g.Break();
}
g.ctx.MarkDebug("// End of switch");
g.End();
}
}
public void EmitTryRead(SerializerCodeGen g, Local oldValue, MetaType metaType, Action <MetaType> returnGen)
{
Debug.Assert(metaType != null);
using (g.ctx.StartDebugBlockAuto(this, metaType.GetFinalSettingsCopy().Name))
using (var fieldNumber = new Local(g.ctx, typeof(int)))
{
var jumpOut = g.DefineLabel();
returnGen += mt =>
{
g.ctx.MarkDebug("// jump out of SubTypeHelpers.EmitTryRead");
g.Goto(jumpOut);
};
EmitTryRead(
g,
fieldNumber,
metaType,
0,
r =>
{
while (r != null && !r.Serializer.CanCreateInstance() && r != metaType)
{
r = r.BaseType;
}
if (r == null)
{
returnGen(null);
}
else if (!oldValue.IsNullRef()) // check local exists
{
g.If(oldValue.AsOperand.Is(r.Type));
{
returnGen(null);
}
g.Else();
{
returnGen(r);
}
g.End();
}
else
{
returnGen(r);
}
});
g.MarkLabel(jumpOut);
}
}
void EmitRead_CreateInstance(SerializerCodeGen g, Local value, Operand appendCount, Local reservedTrap, Local outOldLen, Local outResult)
{
using (g.ctx.StartDebugBlockAuto(this))
{
g.Assign(outOldLen, AppendToCollection ? (value.AsOperand != null).Conditional(value.AsOperand.Property("Length"), 0) : (Operand)0);
g.Assign(outResult, g.ExpressionFactory.NewArray(_itemType, outOldLen + appendCount));
if (!reservedTrap.IsNullRef())
{
g.Reader.NoteReservedTrappedObject(reservedTrap, outResult);
}
else
{
g.Reader.NoteObject(outResult);
}
g.If(outOldLen.AsOperand != 0);
{
g.Invoke(value, "CopyTo", outResult, 0);
}
g.End();
}
}
public void EmitRead(SerializerCodeGen g, EmitReadMetaDelegate readNextMeta, Action prepareInstance, Action <Local> add)
{
if (readNextMeta == null)
{
readNextMeta = (s, f) => f();
}
using (g.ctx.StartDebugBlockAuto(this))
{
WireType packedWireType = _packedWireTypeForRead;
bool packedAllowedStatic = (!_protoCompatibility || packedWireType != WireType.None);
using (var packed = packedAllowedStatic ? g.ctx.Local(typeof(bool)) : null)
using (var token = g.ctx.Local(typeof(SubItemToken)))
using (var fieldNumber = _protoCompatibility ? g.ctx.Local(typeof(int)):null)
using (var loop = g.ctx.Local(typeof(bool)))
{
if (!fieldNumber.IsNullRef())
{
g.Assign(fieldNumber, g.ReaderFunc.FieldNumber());
}
if (packedAllowedStatic)
{
g.Assign(packed, g.ReaderFunc.WireType() == WireType.String);
}
bool subItemNeededStatic = !_protoCompatibility;
if (subItemNeededStatic || packedAllowedStatic)
{
if (!subItemNeededStatic)
{
g.If(packed);
}
g.Assign(token, g.ReaderFunc.StartSubItem());
if (!subItemNeededStatic)
{
g.End();
}
}
g.ctx.MarkDebug("ProtoCompatibility: " + _protoCompatibility);
if (_protoCompatibility)
{
// this is not an error that we don't wait for the first item
// if field is present there is at least one element
prepareInstance?.Invoke();
if (packedAllowedStatic)
{
g.If(packed);
{
g.While(g.ReaderFunc.HasSubValue_bool(packedWireType));
{
EmitReadElementContent(g, add);
}
g.End();
}
g.Else();
}
g.DoWhile();
{
EmitReadElementContent(g, add);
}
g.EndDoWhile(g.ReaderFunc.TryReadFieldHeader_bool(fieldNumber));
if (packedAllowedStatic)
{
g.End();
}
}
else
{
var breakLabel = g.DefineLabel();
g.DoWhile();
{
g.Assign(loop, false);
readNextMeta(
() =>
{
using (g.ctx.StartDebugBlockAuto(this, "readNextMeta.OnSuccess"))
{
g.Assign(loop, true);
}
},
() =>
{
using (g.ctx.StartDebugBlockAuto(this, "readNextMeta.OnFail"))
{
g.If(!g.ReaderFunc.TryReadFieldHeader_bool(FieldItem));
{
g.If(g.ReaderFunc.ReadFieldHeader_int() == 0);
{
g.Goto(breakLabel);
}
g.End();
g.Reader.SkipField();
g.Assign(loop, true);
}
g.End();
}
});
}
g.EndDoWhile(loop);
g.MarkLabel(breakLabel);
prepareInstance?.Invoke();
g.If(g.ReaderFunc.FieldNumber() == FieldItem);
{
g.If(packed);
{
using (var packedWireTypeDynamic = g.ctx.Local(typeof(WireType)))
{
g.Assign(packedWireTypeDynamic, g.ReaderFunc.WireType());
g.DoWhile();
{
EmitReadElementContent(g, add);
}
g.EndDoWhile(g.ReaderFunc.HasSubValue_bool(packedWireTypeDynamic));
}
}
g.Else();
{
g.DoWhile();
{
EmitReadElementContent(g, add);
}
g.EndDoWhile(g.ReaderFunc.TryReadFieldHeader_bool(FieldItem));
}
g.End();
}
g.End();
}
if (subItemNeededStatic || packedAllowedStatic)
{
if (!subItemNeededStatic)
{
g.If(packed);
}
g.Reader.EndSubItem(token);
if (!subItemNeededStatic)
{
g.End();
}
}
}
}
}
