diff options
Diffstat (limited to 'JavaScriptCore/runtime/NumericStrings.h')
| -rw-r--r-- | JavaScriptCore/runtime/NumericStrings.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/JavaScriptCore/runtime/NumericStrings.h b/JavaScriptCore/runtime/NumericStrings.h index c0696a4..89235af 100644 --- a/JavaScriptCore/runtime/NumericStrings.h +++ b/JavaScriptCore/runtime/NumericStrings.h @@ -45,6 +45,8 @@ namespace JSC { UString add(int i) { + if (static_cast<unsigned>(i) < cacheSize) + return lookupSmallString(static_cast<unsigned>(i)); CacheEntry<int>& entry = lookup(i); if (i == entry.key && !entry.value.isNull()) return entry.value; @@ -53,6 +55,17 @@ namespace JSC { return entry.value; } + UString add(unsigned i) + { + if (i < cacheSize) + return lookupSmallString(static_cast<unsigned>(i)); + CacheEntry<unsigned>& entry = lookup(i); + if (i == entry.key && !entry.value.isNull()) + return entry.value; + entry.key = i; + entry.value = UString::from(i); + return entry.value; + } private: static const size_t cacheSize = 64; @@ -64,9 +77,19 @@ namespace JSC { CacheEntry<double>& lookup(double d) { return doubleCache[WTF::FloatHash<double>::hash(d) & (cacheSize - 1)]; } CacheEntry<int>& lookup(int i) { return intCache[WTF::IntHash<int>::hash(i) & (cacheSize - 1)]; } + CacheEntry<unsigned>& lookup(unsigned i) { return unsignedCache[WTF::IntHash<unsigned>::hash(i) & (cacheSize - 1)]; } + const UString& lookupSmallString(unsigned i) + { + ASSERT(i < cacheSize); + if (smallIntCache[i].isNull()) + smallIntCache[i] = UString::from(i); + return smallIntCache[i]; + } CacheEntry<double> doubleCache[cacheSize]; CacheEntry<int> intCache[cacheSize]; + CacheEntry<unsigned> unsignedCache[cacheSize]; + UString smallIntCache[cacheSize]; }; } // namespace JSC |