JavaScriptCore-7600.1.4.15.12.tar.gz

[apple/javascriptcore.git] / runtime / JSNotAnObject.h

diff --git a/runtime/JSNotAnObject.h b/runtime/JSNotAnObject.h
index 339d41f5a2294413c140ae9fdff58347f30fa6fb..a84100288a5961ffe5955d05a8a49416464d135e 100644 (file)
--- a/runtime/JSNotAnObject.h
+++ b/runtime/JSNotAnObject.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.
  *
@@ -33,67 +33,51 @@
 
 namespace JSC {
 
-    class JSNotAnObjectErrorStub : public JSObject {
-    public:
-        JSNotAnObjectErrorStub(ExecState* exec, bool isNull)
-            : JSObject(exec->globalData().notAnObjectErrorStubStructure)
-            , m_isNull(isNull)
-        {
-        }
-
-        bool isNull() const { return m_isNull; }
-
-    private:
-        virtual bool isNotAnObjectErrorStub() const { return true; }
-
-        bool m_isNull;
-    };
-    
     // This unholy class is used to allow us to avoid multiple exception checks
     // in certain SquirrelFish bytecodes -- effectively it just silently consumes
     // any operations performed on the result of a failed toObject call.
-    class JSNotAnObject : public JSObject {
+    class JSNotAnObject : public JSNonFinalObject {
+    private:
+        explicit JSNotAnObject(VM& vm)
+            : JSNonFinalObject(vm, vm.notAnObjectStructure.get())
+        {
+        }
+        
     public:
-        JSNotAnObject(ExecState* exec, JSNotAnObjectErrorStub* exception)
-            : JSObject(exec->globalData().notAnObjectStructure)
-            , m_exception(exception)
+        typedef JSNonFinalObject Base;
+
+        static JSNotAnObject* create(VM& vm)
         {
+            JSNotAnObject* object = new (NotNull, allocateCell<JSNotAnObject>(vm.heap)) JSNotAnObject(vm);
+            object->finishCreation(vm);
+            return object;
         }
 
-        static PassRefPtr<Structure> createStructure(JSValue prototype)
+        static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
         {
-            return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
+            return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
         }
 
+        DECLARE_INFO;
+
      private:
         
-        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesMarkChildren | OverridesGetPropertyNames | JSObject::StructureFlags;
+        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | OverridesGetPropertyNames | JSObject::StructureFlags;
 
         // JSValue methods
-        virtual JSValue toPrimitive(ExecState*, PreferredPrimitiveType) const;
-        virtual bool getPrimitiveNumber(ExecState*, double& number, JSValue&);
-        virtual bool toBoolean(ExecState*) const;
-        virtual double toNumber(ExecState*) const;
-        virtual UString toString(ExecState*) const;
-        virtual JSObject* toObject(ExecState*) const;
-
-        // Marking
-        virtual void markChildren(MarkStack&);
+        static JSValue defaultValue(const JSObject*, ExecState*, PreferredPrimitiveType);
 
         // JSObject methods
-        virtual bool getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot&);
-        virtual bool getOwnPropertySlot(ExecState*, unsigned propertyName, PropertySlot&);
-        virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
-
-        virtual void put(ExecState*, const Identifier& propertyName, JSValue, PutPropertySlot&);
-        virtual void put(ExecState*, unsigned propertyName, JSValue);
+        static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
+        static bool getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned propertyName, PropertySlot&);
 
-        virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
-        virtual bool deleteProperty(ExecState*, unsigned propertyName);
+        static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
+        static void putByIndex(JSCell*, ExecState*, unsigned propertyName, JSValue, bool shouldThrow);
 
-        virtual void getOwnPropertyNames(ExecState*, PropertyNameArray&, EnumerationMode mode = ExcludeDontEnumProperties);
+        static bool deleteProperty(JSCell*, ExecState*, PropertyName);
+        static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned propertyName);
 
-        JSNotAnObjectErrorStub* m_exception;
+        static void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
     };
 
 } // namespace JSC