object ReadValue(Type type, string name)
{
var valueType = type;
object value = null;
bool shouldAssignNullableValue = false;
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)
{
context.ReadAttributes(xmlReader);
string objectId = context.ReadIfNullOrRef(xmlReader, type, DataContract.IsTypeSerializable(type));
// Deserialize null
if (objectId == Globals.NullObjectId)
{
if (nullables != 0)
{
value = Activator.CreateInstance(valueType);
}
else if (type.IsValueType)
{
throw new SerializationException(SR.GetString(SR.ValueTypeCannotBeNull, DataContract.GetClrTypeFullName(type)));
}
else
{
value = null;
}
}
else if (objectId == string.Empty)
{
// Deserialize value
// Compare against Globals.NewObjectId, which is set to string.Empty
objectId = context.GetObjectId();
if (type.IsValueType)
{
if (!string.IsNullOrEmpty(objectId))
{
throw new SerializationException(SR.GetString(SR.ValueTypeCannotHaveId, DataContract.GetClrTypeFullName(type)));
}
}
object innerValueRead = null;
if (nullables != 0)
{
shouldAssignNullableValue = true;
}
if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject)
{
value = primitiveContract.XmlFormatReaderMethod.Invoke(xmlReader, new object [0]);
if (!type.IsValueType)
{
context.AddNewObject(value);
}
}
else
{
value = InternalDeserialize(type, name);
}
}
else
{
// Deserialize ref
if (type.IsValueType)
{
throw new SerializationException(SR.GetString(SR.ValueTypeCannotHaveRef, DataContract.GetClrTypeFullName(type)));
}
else
{
value = CodeInterpreter.ConvertValue(context.GetExistingObject(objectId, type, name, string.Empty), Globals.TypeOfObject, type);
}
}
if (shouldAssignNullableValue)
{
if (objectId != Globals.NullObjectId)
{
value = WrapNullableObject(type, value, valueType, nullables);
}
}
}
else
{
value = InternalDeserialize(type, name);
}
return(value);
}