JavaScriptCore-7600.1.4.15.12.tar.gz

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

diff --git a/runtime/PropertyNameArray.h b/runtime/PropertyNameArray.h
index b4382f4228d9cb92ced635ef7925089a71c84a73..bfbddaa60c1c96127a13c2e8a7f13aec58fe564f 100644 (file)
--- a/runtime/PropertyNameArray.h
+++ b/runtime/PropertyNameArray.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
@@ -23,88 +23,91 @@
 
 #include "CallFrame.h"
 #include "Identifier.h"
-#include "Structure.h"
 #include <wtf/HashSet.h>
 #include <wtf/Vector.h>
 
 namespace JSC {
+    
+    class Structure;
+    class StructureChain;
 
+    // FIXME: Rename to PropertyNameArray.
     class PropertyNameArrayData : public RefCounted<PropertyNameArrayData> {
     public:
         typedef Vector<Identifier, 20> PropertyNameVector;
-        typedef PropertyNameVector::const_iterator const_iterator;
 
         static PassRefPtr<PropertyNameArrayData> create() { return adoptRef(new PropertyNameArrayData); }
 
-        const_iterator begin() const { return m_propertyNameVector.begin(); }
-        const_iterator end() const { return m_propertyNameVector.end(); }
-
         PropertyNameVector& propertyNameVector() { return m_propertyNameVector; }
 
-        void setCachedStructure(Structure* structure) { m_cachedStructure = structure; }
-        Structure* cachedStructure() const { return m_cachedStructure; }
-
-        void setCachedPrototypeChain(PassRefPtr<StructureChain> cachedPrototypeChain) { m_cachedPrototypeChain = cachedPrototypeChain; }
-        StructureChain* cachedPrototypeChain() { return m_cachedPrototypeChain.get(); }
-
     private:
         PropertyNameArrayData()
-            : m_cachedStructure(0)
         {
         }
 
         PropertyNameVector m_propertyNameVector;
-        Structure* m_cachedStructure;
-        RefPtr<StructureChain> m_cachedPrototypeChain;
     };
 
+    // FIXME: Rename to PropertyNameArrayBuilder.
     class PropertyNameArray {
     public:
-        typedef PropertyNameArrayData::const_iterator const_iterator;
-
-        PropertyNameArray(JSGlobalData* globalData)
+        PropertyNameArray(VM* vm)
             : m_data(PropertyNameArrayData::create())
-            , m_globalData(globalData)
-            , m_shouldCache(true)
+            , m_vm(vm)
+            , m_numCacheableSlots(0)
+            , m_baseObject(0)
         {
         }
 
         PropertyNameArray(ExecState* exec)
             : m_data(PropertyNameArrayData::create())
-            , m_globalData(&exec->globalData())
-            , m_shouldCache(true)
+            , m_vm(&exec->vm())
+            , m_numCacheableSlots(0)
+            , m_baseObject(0)
         {
         }
 
-        JSGlobalData* globalData() { return m_globalData; }
+        VM* vm() { return m_vm; }
 
-        void add(const Identifier& identifier) { add(identifier.ustring().rep()); }
-        void add(UString::Rep*);
-        void addKnownUnique(UString::Rep* identifier) { m_data->propertyNameVector().append(Identifier(m_globalData, identifier)); }
-
-        size_t size() const { return m_data->propertyNameVector().size(); }
+        void add(const Identifier& identifier) { add(identifier.impl()); }
+        JS_EXPORT_PRIVATE void add(StringImpl*);
+        void addKnownUnique(StringImpl* identifier) { m_data->propertyNameVector().append(Identifier(m_vm, identifier)); }
 
         Identifier& operator[](unsigned i) { return m_data->propertyNameVector()[i]; }
         const Identifier& operator[](unsigned i) const { return m_data->propertyNameVector()[i]; }
 
-        const_iterator begin() const { return m_data->begin(); }
-        const_iterator end() const { return m_data->end(); }
-
         void setData(PassRefPtr<PropertyNameArrayData> data) { m_data = data; }
         PropertyNameArrayData* data() { return m_data.get(); }
-
         PassRefPtr<PropertyNameArrayData> releaseData() { return m_data.release(); }
 
-        void setShouldCache(bool shouldCache) { m_shouldCache = shouldCache; }
-        bool shouldCache() const { return m_shouldCache; }
+        // FIXME: Remove these functions.
+        typedef PropertyNameArrayData::PropertyNameVector::const_iterator const_iterator;
+        size_t size() const { return m_data->propertyNameVector().size(); }
+        const_iterator begin() const { return m_data->propertyNameVector().begin(); }
+        const_iterator end() const { return m_data->propertyNameVector().end(); }
+
+        size_t numCacheableSlots() const { return m_numCacheableSlots; }
+        void setNumCacheableSlotsForObject(JSObject* object, size_t numCacheableSlots)
+        {
+            if (object != m_baseObject)
+                return;
+            m_numCacheableSlots = numCacheableSlots;
+        }
+        void setBaseObject(JSObject* object)
+        {
+            if (m_baseObject)
+                return;
+            m_baseObject = object;
+        }
 
     private:
-        typedef HashSet<UString::Rep*, PtrHash<UString::Rep*> > IdentifierSet;
+        typedef HashSet<StringImpl*, PtrHash<StringImpl*>> IdentifierSet;
 
         RefPtr<PropertyNameArrayData> m_data;
         IdentifierSet m_set;
-        JSGlobalData* m_globalData;
-        bool m_shouldCache;
+        VM* m_vm;
+        size_t m_numCacheableSlots;
+        JSObject* m_baseObject;
     };
 
 } // namespace JSC