JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / bytecode / EvalCodeCache.h

diff --git a/bytecode/EvalCodeCache.h b/bytecode/EvalCodeCache.h
index 1e181b9d7c359e9ef21d014c61fbea00670d1700..b0e5aac98d8f2e702e71fee498e3a331cf103f60 100644 (file)
--- a/bytecode/EvalCodeCache.h
+++ b/bytecode/EvalCodeCache.h
@@ -10,7 +10,7 @@
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
@@ -31,38 +31,34 @@
 
 #include "Executable.h"
 #include "JSGlobalObject.h"
-#include "Nodes.h"
-#include "Parser.h"
+#include "Options.h"
 #include "SourceCode.h"
-#include "UString.h"
 #include <wtf/HashMap.h>
 #include <wtf/RefPtr.h>
 #include <wtf/text/StringHash.h>
 
 namespace JSC {
 
-    class MarkStack;
-    typedef MarkStack SlotVisitor;
+    class SlotVisitor;
 
     class EvalCodeCache {
     public:
-        EvalExecutable* get(ExecState* exec, ScriptExecutable* owner, bool inStrictContext, const UString& evalSource, ScopeChainNode* scopeChain, JSValue& exceptionValue)
+        EvalExecutable* tryGet(bool inStrictContext, const String& evalSource, JSScope* scope)
         {
-            EvalExecutable* evalExecutable = 0;
-
-            if (!inStrictContext && evalSource.length() < maxCacheableSourceLength && (*scopeChain->begin())->isVariableObject())
-                evalExecutable = m_cacheMap.get(evalSource.impl()).get();
-
-            if (!evalExecutable) {
-                evalExecutable = EvalExecutable::create(exec, makeSource(evalSource), inStrictContext);
-                exceptionValue = evalExecutable->compile(exec, scopeChain);
-                if (exceptionValue)
-                    return 0;
-
-                if (!inStrictContext && evalSource.length() < maxCacheableSourceLength && (*scopeChain->begin())->isVariableObject() && m_cacheMap.size() < maxCacheEntries)
-                    m_cacheMap.set(evalSource.impl(), WriteBarrier<EvalExecutable>(exec->globalData(), owner, evalExecutable));
-            }
+            if (!inStrictContext && evalSource.length() < Options::maximumEvalCacheableSourceLength() && scope->begin()->isVariableObject())
+                return m_cacheMap.get(evalSource.impl()).get();
+            return 0;
+        }
+        
+        EvalExecutable* getSlow(ExecState* exec, ScriptExecutable* owner, bool inStrictContext, ThisTDZMode thisTDZMode, const String& evalSource, JSScope* scope)
+        {
+            EvalExecutable* evalExecutable = EvalExecutable::create(exec, makeSource(evalSource), inStrictContext, thisTDZMode);
+            if (!evalExecutable)
+                return 0;
 
+            if (!inStrictContext && evalSource.length() < Options::maximumEvalCacheableSourceLength() && scope->begin()->isVariableObject() && m_cacheMap.size() < maxCacheEntries)
+                m_cacheMap.set(evalSource.impl(), WriteBarrier<EvalExecutable>(exec->vm(), owner, evalExecutable));
+            
             return evalExecutable;
         }
 
@@ -76,10 +72,9 @@ namespace JSC {
         }
 
     private:
-        static const unsigned maxCacheableSourceLength = 256;
         static const int maxCacheEntries = 64;
 
-        typedef HashMap<RefPtr<StringImpl>, WriteBarrier<EvalExecutable> > EvalCacheMap;
+        typedef HashMap<RefPtr<StringImpl>, WriteBarrier<EvalExecutable>> EvalCacheMap;
         EvalCacheMap m_cacheMap;
     };