Fast path for jsStringWithCache() when asked for the same string repeatedly.

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

diff --git a/Source/JavaScriptCore/runtime/VM.h b/Source/JavaScriptCore/runtime/VM.h
index 5d648c6..3251809 100644 (file)
--- a/Source/JavaScriptCore/runtime/VM.h
+++ b/Source/JavaScriptCore/runtime/VM.h
@@ -297,6 +297,7 @@ namespace JSC {
         DateInstanceCache dateInstanceCache;
         WTF::SimpleStats machineCodeBytesPerBytecodeWordForBaselineJIT;
         WeakGCMap<StringImpl*, JSString, PtrHash<StringImpl*>> stringCache;
+        Weak<JSString> lastCachedString;
 
         AtomicStringTable* atomicStringTable() const { return m_atomicStringTable; }