private LocalBuilder ReadValue(Type type, string name, string ns)
{
LocalBuilder value = _ilg.DeclareLocal(type, "valueRead");
LocalBuilder?nullableValue = null;
int nullables = 0;
while (type.IsGenericType && type.GetGenericTypeDefinition() == Globals.TypeOfNullable)
{
nullables++;
type = type.GetGenericArguments()[0];
}
PrimitiveDataContract?primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(type);
if ((primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject) || nullables != 0 || type.IsValueType)
{
LocalBuilder objectId = _ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.ReadAttributesMethod, _xmlReaderArg);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.ReadIfNullOrRefMethod, _xmlReaderArg, type, DataContract.IsTypeSerializable(type));
_ilg.Stloc(objectId);
// Deserialize null
_ilg.If(objectId, Cmp.EqualTo, Globals.NullObjectId);
if (nullables != 0)
{
_ilg.LoadAddress(value);
_ilg.InitObj(value.LocalType);
}
else if (type.IsValueType)
{
ThrowValidationException(SR.Format(SR.ValueTypeCannotBeNull, DataContract.GetClrTypeFullName(type)));
}
else
{
_ilg.Load(null);
_ilg.Stloc(value);
}
// Deserialize value
// Compare against Globals.NewObjectId, which is set to string.Empty
_ilg.ElseIfIsEmptyString(objectId);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
_ilg.Stloc(objectId);
if (type.IsValueType)
{
_ilg.IfNotIsEmptyString(objectId);
ThrowValidationException(SR.Format(SR.ValueTypeCannotHaveId, DataContract.GetClrTypeFullName(type)));
_ilg.EndIf();
}
if (nullables != 0)
{
nullableValue = value;
value = _ilg.DeclareLocal(type, "innerValueRead");
}
if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject)
{
_ilg.Call(_xmlReaderArg, primitiveContract.XmlFormatReaderMethod);
_ilg.Stloc(value);
if (!type.IsValueType)
{
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, value);
}
}
else
{
InternalDeserialize(value, type, name, ns);
}
// Deserialize ref
_ilg.Else();
if (type.IsValueType)
{
ThrowValidationException(SR.Format(SR.ValueTypeCannotHaveRef, DataContract.GetClrTypeFullName(type)));
}
else
{
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetExistingObjectMethod, objectId, type, name, ns);
_ilg.ConvertValue(Globals.TypeOfObject, type);
_ilg.Stloc(value);
}
_ilg.EndIf();
if (nullableValue != null)
{
_ilg.If(objectId, Cmp.NotEqualTo, Globals.NullObjectId);
WrapNullableObject(value, nullableValue, nullables);
_ilg.EndIf();
value = nullableValue;
}
}
else
{
InternalDeserialize(value, type, name, ns);
}
return(value);
}
private void ReadMembers(ClassDataContract classContract, LocalBuilder extensionDataLocal)
{
int memberCount = classContract.MemberNames.Length;
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.IncrementItemCountMethod, memberCount);
LocalBuilder memberIndexLocal = _ilg.DeclareLocal(Globals.TypeOfInt, "memberIndex", -1);
int firstRequiredMember;
bool[] requiredMembers = GetRequiredMembers(classContract, out firstRequiredMember);
bool hasRequiredMembers = (firstRequiredMember < memberCount);
LocalBuilder requiredIndexLocal = hasRequiredMembers ? _ilg.DeclareLocal(Globals.TypeOfInt, "requiredIndex", firstRequiredMember) : null;
object forReadElements = _ilg.For(null, null, null);
_ilg.Call(null, XmlFormatGeneratorStatics.MoveToNextElementMethod, _xmlReaderArg);
_ilg.IfFalseBreak(forReadElements);
if (hasRequiredMembers)
{
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetMemberIndexWithRequiredMembersMethod, _xmlReaderArg, _memberNamesArg, _memberNamespacesArg, memberIndexLocal, requiredIndexLocal, extensionDataLocal);
}
else
{
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetMemberIndexMethod, _xmlReaderArg, _memberNamesArg, _memberNamespacesArg, memberIndexLocal, extensionDataLocal);
}
Label[] memberLabels = _ilg.Switch(memberCount);
ReadMembers(classContract, requiredMembers, memberLabels, memberIndexLocal, requiredIndexLocal);
_ilg.EndSwitch();
_ilg.EndFor();
if (hasRequiredMembers)
{
_ilg.If(requiredIndexLocal, Cmp.LessThan, memberCount);
_ilg.Call(null, XmlFormatGeneratorStatics.ThrowRequiredMemberMissingExceptionMethod, _xmlReaderArg, memberIndexLocal, requiredIndexLocal, _memberNamesArg);
_ilg.EndIf();
}
}
private void WriteValue(LocalBuilder memberValue, bool writeXsiType)
{
Type memberType = memberValue.LocalType;
bool isNullableOfT = (memberType.IsGenericType &&
memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);
if (memberType.IsValueType && !isNullableOfT)
{
PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
if (primitiveContract != null && !writeXsiType)
{
_ilg.Call(_xmlWriterArg, primitiveContract.XmlFormatContentWriterMethod, memberValue);
}
else
{
InternalSerialize(XmlFormatGeneratorStatics.InternalSerializeMethod, memberValue, memberType, writeXsiType);
}
}
else
{
if (isNullableOfT)
{
memberValue = UnwrapNullableObject(memberValue);//Leaves !HasValue on stack
memberType = memberValue.LocalType;
}
else
{
_ilg.Load(memberValue);
_ilg.Load(null);
_ilg.Ceq();
}
_ilg.If();
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.WriteNullMethod, _xmlWriterArg, memberType, DataContract.IsTypeSerializable(memberType));
_ilg.Else();
PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject && !writeXsiType)
{
if (isNullableOfT)
{
_ilg.Call(_xmlWriterArg, primitiveContract.XmlFormatContentWriterMethod, memberValue);
}
else
{
_ilg.Call(_contextArg, primitiveContract.XmlFormatContentWriterMethod, _xmlWriterArg, memberValue);
}
}
else
{
if (memberType == Globals.TypeOfObject ||//boxed Nullable<T>
memberType == Globals.TypeOfValueType ||
((IList)Globals.TypeOfNullable.GetInterfaces()).Contains(memberType))
{
_ilg.Load(memberValue);
_ilg.ConvertValue(memberValue.LocalType, Globals.TypeOfObject);
memberValue = _ilg.DeclareLocal(Globals.TypeOfObject, "unwrappedMemberValue");
memberType = memberValue.LocalType;
_ilg.Stloc(memberValue);
_ilg.If(memberValue, Cmp.EqualTo, null);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.WriteNullMethod, _xmlWriterArg, memberType, DataContract.IsTypeSerializable(memberType));
_ilg.Else();
}
InternalSerialize((isNullableOfT ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod),
memberValue, memberType, writeXsiType);
if (memberType == Globals.TypeOfObject) //boxed Nullable<T>
{
_ilg.EndIf();
}
}
_ilg.EndIf();
}
}
