diff options
Diffstat (limited to 'Source/JavaScriptCore/runtime/DateInstanceCache.h')
| -rw-r--r-- | Source/JavaScriptCore/runtime/DateInstanceCache.h | 95 |
1 files changed, 47 insertions, 48 deletions
diff --git a/Source/JavaScriptCore/runtime/DateInstanceCache.h b/Source/JavaScriptCore/runtime/DateInstanceCache.h index 1c8c011ec..865ee8ff2 100644 --- a/Source/JavaScriptCore/runtime/DateInstanceCache.h +++ b/Source/JavaScriptCore/runtime/DateInstanceCache.h @@ -30,65 +30,64 @@ #include "JSDateMath.h" #include <array> #include <wtf/HashFunctions.h> -#include <wtf/PassRefPtr.h> #include <wtf/RefCounted.h> namespace JSC { - class DateInstanceData : public RefCounted<DateInstanceData> { - public: - static PassRefPtr<DateInstanceData> create() { return adoptRef(new DateInstanceData); } - - double m_gregorianDateTimeCachedForMS; - GregorianDateTime m_cachedGregorianDateTime; - double m_gregorianDateTimeUTCCachedForMS; - GregorianDateTime m_cachedGregorianDateTimeUTC; - - private: - DateInstanceData() - : m_gregorianDateTimeCachedForMS(QNaN) - , m_gregorianDateTimeUTCCachedForMS(QNaN) - { - } - }; +class DateInstanceData : public RefCounted<DateInstanceData> { +public: + static Ref<DateInstanceData> create() { return adoptRef(*new DateInstanceData); } - class DateInstanceCache { - public: - DateInstanceCache() - { - reset(); - } - - void reset() - { - for (size_t i = 0; i < cacheSize; ++i) - m_cache[i].key = QNaN; - } - - DateInstanceData* add(double d) - { - CacheEntry& entry = lookup(d); - if (d == entry.key) - return entry.value.get(); - - entry.key = d; - entry.value = DateInstanceData::create(); - return entry.value.get(); - } + double m_gregorianDateTimeCachedForMS; + GregorianDateTime m_cachedGregorianDateTime; + double m_gregorianDateTimeUTCCachedForMS; + GregorianDateTime m_cachedGregorianDateTimeUTC; + +private: + DateInstanceData() + : m_gregorianDateTimeCachedForMS(PNaN) + , m_gregorianDateTimeUTCCachedForMS(PNaN) + { + } +}; + +class DateInstanceCache { +public: + DateInstanceCache() + { + reset(); + } - private: - static const size_t cacheSize = 16; + void reset() + { + for (size_t i = 0; i < cacheSize; ++i) + m_cache[i].key = PNaN; + } - struct CacheEntry { - double key; - RefPtr<DateInstanceData> value; - }; + DateInstanceData* add(double d) + { + CacheEntry& entry = lookup(d); + if (d == entry.key) + return entry.value.get(); + + entry.key = d; + entry.value = DateInstanceData::create(); + return entry.value.get(); + } - CacheEntry& lookup(double d) { return m_cache[WTF::FloatHash<double>::hash(d) & (cacheSize - 1)]; } +private: + static const size_t cacheSize = 16; - std::array<CacheEntry, cacheSize> m_cache; + struct CacheEntry { + double key; + RefPtr<DateInstanceData> value; }; + CacheEntry& lookup(double d) { return m_cache[WTF::FloatHash<double>::hash(d) & (cacheSize - 1)]; } + + std::array<CacheEntry, cacheSize> m_cache; +}; + } // namespace JSC #endif // DateInstanceCache_h |
