Object.prototype.toString() should use cached strings for null/undefined.

[WebKit-https.git] / Source / JavaScriptCore / runtime / SmallStrings.h

diff --git a/Source/JavaScriptCore/runtime/SmallStrings.h b/Source/JavaScriptCore/runtime/SmallStrings.h
index 0e8646a..e3d3981 100644 (file)
--- a/Source/JavaScriptCore/runtime/SmallStrings.h
+++ b/Source/JavaScriptCore/runtime/SmallStrings.h
@@ -86,6 +86,9 @@ namespace JSC {
         JSC_COMMON_STRINGS_EACH_NAME(JSC_COMMON_STRINGS_ACCESSOR_DEFINITION)
 #undef JSC_COMMON_STRINGS_ACCESSOR_DEFINITION
 
+        JSString* nullObjectString() const { return m_nullObjectString; }
+        JSString* undefinedObjectString() const { return m_undefinedObjectString; }
+
     private:
         static const unsigned singleCharacterStringCount = maxSingleCharacterString + 1;
 
@@ -98,6 +101,8 @@ namespace JSC {
 #define JSC_COMMON_STRINGS_ATTRIBUTE_DECLARATION(name) JSString* m_##name;
         JSC_COMMON_STRINGS_EACH_NAME(JSC_COMMON_STRINGS_ATTRIBUTE_DECLARATION)
 #undef JSC_COMMON_STRINGS_ATTRIBUTE_DECLARATION
+        JSString* m_nullObjectString;
+        JSString* m_undefinedObjectString;
         JSString* m_singleCharacterStrings[singleCharacterStringCount];
         OwnPtr<SmallStringsStorage> m_storage;
     };