SerializableAttributeTyped.h

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// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
// SPDX-License-Identifier: MIT
 
#pragma once
 
#ifdef JPH_OBJECT_STREAM
 
#include <Jolt/ObjectStream/SerializableAttribute.h>
#include <Jolt/ObjectStream/GetPrimitiveTypeOfType.h>
#include <Jolt/ObjectStream/ObjectStream.h>
 
JPH_NAMESPACE_BEGIN
 
// Macros to add properties to be serialized
 
template <class MemberType>
inline void AddSerializableAttributeTyped(RTTI &inRTTI, uint inOffset, const char *inName)
{
    inRTTI.AddAttribute(SerializableAttribute(inName, inOffset,
        []()
        {
            return GetPrimitiveTypeOfType((MemberType *)nullptr);
        },
        [](int inArrayDepth, EOSDataType inDataType, const char *inClassName)
        {
            return OSIsType((MemberType *)nullptr, inArrayDepth, inDataType, inClassName);
        },
        [](IObjectStreamIn &ioStream, void *inObject)
        {
            return OSReadData(ioStream, *reinterpret_cast<MemberType *>(inObject));
        },
        [](IObjectStreamOut &ioStream, const void *inObject)
        {
            OSWriteData(ioStream, *reinterpret_cast<const MemberType *>(inObject));
        },
        [](IObjectStreamOut &ioStream)
        {
            OSWriteDataType(ioStream, (MemberType *)nullptr);
        }));
}
 
// JPH_ADD_ATTRIBUTE
#define JPH_ADD_ATTRIBUTE_WITH_ALIAS(class_name, member_name, alias_name) \
    AddSerializableAttributeTyped<decltype(class_name::member_name)>(inRTTI, offsetof(class_name, member_name), alias_name);
 
// JPH_ADD_ATTRIBUTE
#define JPH_ADD_ATTRIBUTE(class_name, member_name) \
    JPH_ADD_ATTRIBUTE_WITH_ALIAS(class_name, member_name, #member_name)
 
JPH_NAMESPACE_END
 
#else
 
#define JPH_ADD_ATTRIBUTE_WITH_ALIAS(...)
#define JPH_ADD_ATTRIBUTE(...)
 
#endif // JPH_OBJECT_STREAM