diff options
Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h')
-rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h index f4527df741..5d0bd2aec0 100644 --- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h +++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/PtrAndFlags.h @@ -34,10 +34,8 @@ #include <wtf/Assertions.h> namespace WTF { - template<class T, typename FlagEnum> class PtrAndFlags { + template<class T, typename FlagEnum> class PtrAndFlagsBase { public: - PtrAndFlags() : m_ptrAndFlags(0) {} - bool isFlagSet(FlagEnum flagNumber) const { ASSERT(flagNumber < 2); return m_ptrAndFlags & (1 << flagNumber); } void setFlag(FlagEnum flagNumber) { ASSERT(flagNumber < 2); m_ptrAndFlags |= (1 << flagNumber);} void clearFlag(FlagEnum flagNumber) { ASSERT(flagNumber < 2); m_ptrAndFlags &= ~(1 << flagNumber);} @@ -51,14 +49,31 @@ namespace WTF { #endif } - private: + bool operator!() const { return !get(); } + T* operator->() const { return reinterpret_cast<T*>(m_ptrAndFlags & ~3); } + + protected: intptr_t m_ptrAndFlags; #ifndef NDEBUG void* m_leaksPtr; // Only used to allow tools like leaks on OSX to detect that the memory is referenced. #endif }; + + template<class T, typename FlagEnum> class PtrAndFlags : public PtrAndFlagsBase<T, FlagEnum> { + public: + PtrAndFlags() + { + PtrAndFlagsBase<T, FlagEnum>::m_ptrAndFlags = 0; + } + PtrAndFlags(T* ptr) + { + PtrAndFlagsBase<T, FlagEnum>::m_ptrAndFlags = 0; + set(ptr); + } + }; } // namespace WTF +using WTF::PtrAndFlagsBase; using WTF::PtrAndFlags; #endif // PtrAndFlags_h |