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-rw-r--r--Source/JavaScriptCore/runtime/SmallStrings.h20
1 files changed, 13 insertions, 7 deletions
diff --git a/Source/JavaScriptCore/runtime/SmallStrings.h b/Source/JavaScriptCore/runtime/SmallStrings.h
index cd9c325..b54d020 100644
--- a/Source/JavaScriptCore/runtime/SmallStrings.h
+++ b/Source/JavaScriptCore/runtime/SmallStrings.h
@@ -33,13 +33,16 @@
namespace JSC {
+ class HeapRootMarker;
class JSGlobalData;
class JSString;
class MarkStack;
class SmallStringsStorage;
+ static const unsigned maxSingleCharacterString = 0xFF;
+
class SmallStrings {
- WTF_MAKE_NONCOPYABLE(SmallStrings); WTF_MAKE_FAST_ALLOCATED;
+ WTF_MAKE_NONCOPYABLE(SmallStrings);
public:
SmallStrings();
~SmallStrings();
@@ -48,30 +51,33 @@ namespace JSC {
{
if (!m_emptyString)
createEmptyString(globalData);
- return m_emptyString.get();
+ return m_emptyString;
}
+
JSString* singleCharacterString(JSGlobalData* globalData, unsigned char character)
{
if (!m_singleCharacterStrings[character])
createSingleCharacterString(globalData, character);
- return m_singleCharacterStrings[character].get();
+ return m_singleCharacterStrings[character];
}
StringImpl* singleCharacterStringRep(unsigned char character);
- void markChildren(MarkStack&);
+ void markChildren(HeapRootMarker&);
void clear();
unsigned count() const;
- JSCell** singleCharacterStrings() { return m_singleCharacterStrings[0].slot(); }
+ JSString** singleCharacterStrings() { return &m_singleCharacterStrings[0]; }
private:
+ static const unsigned singleCharacterStringCount = maxSingleCharacterString + 1;
+
void createEmptyString(JSGlobalData*);
void createSingleCharacterString(JSGlobalData*, unsigned char);
- DeprecatedPtr<JSString> m_emptyString;
- FixedArray<DeprecatedPtr<JSString>, 0x100> m_singleCharacterStrings;
+ JSString* m_emptyString;
+ JSString* m_singleCharacterStrings[singleCharacterStringCount];
OwnPtr<SmallStringsStorage> m_storage;
};