FBX_SceneProxySupport.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        FBX_SceneSupport.h (FBX Library, C++)
 *
 * COMMENTS:    
 *
 */

#ifndef __FBX_SCENEPROXYSUPPORT_H_INCLUDED__
#define __FBX_SCENEPROXYSUPPORT_H_INCLUDED__

#include <SYS/SYS_Compiler.h>
#include <SYS/SYS_Hash.h>
#include <SYS/SYS_TypeDecorate.h>

#define FBX_SCENEPROXY_DECLARE_ID(TYPE) \
    class TYPE \
    { \
    public: \
        TYPE() : myPtr(nullptr) { } \
        SYS_SAFE_BOOL operator bool() const { return myPtr!=nullptr; } \
        bool operator==(const TYPE& x) const { return myPtr == x.myPtr; } \
        bool operator!=(const TYPE& x) const { return !(*this == x); } \
        size_t hash() const { return SYShash(myPtr); } \
    protected: \
        TYPE(void *p) : myPtr(p) { } \
    private: \
        void* myPtr; \
        friend class FBX_SceneProxy; \
        friend struct FBX_Detail; \
        friend struct UT::DefaultClearer<TYPE>; \
    }; \
    inline size_t hash_value(TYPE id) { return id.hash(); } \
    SYS_DECLARE_IS_POD(TYPE); \
    namespace UT { \
        template <typename T> struct DefaultClearer; \
        template <> \
        struct DefaultClearer<TYPE> \
        { \
            using VoidP = void*; \
            static void clear(TYPE& v) { v.myPtr = VoidP(-1LL); } \
            static bool isClear(const TYPE& v) { return v.myPtr==VoidP(-1LL); } \
            static void clearConstruct(TYPE* p) { clear(*p); } \
            static const bool clearNeedsDestruction = false; \
        }; \
    } \
    /**/

#endif // __FBX_SCENEPROXYSUPPORT_H_INCLUDED__