Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 84 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/JSStaticScopeObject.h b/Source/JavaScriptCore/runtime/JSStaticScopeObject.h
new file mode 100644
index 000000000..6a2e51a15
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/JSStaticScopeObject.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef JSStaticScopeObject_h
+#define JSStaticScopeObject_h
+
+#include "JSVariableObject.h"
+
+namespace JSC{
+    
+    class JSStaticScopeObject : public JSVariableObject {
+    public:
+        typedef JSVariableObject Base;
+
+        static JSStaticScopeObject* create(ExecState* exec, const Identifier& identifier, JSValue value, unsigned attributes)
+        {
+            JSStaticScopeObject* scopeObject = new (NotNull, allocateCell<JSStaticScopeObject>(*exec->heap())) JSStaticScopeObject(exec);
+            scopeObject->finishCreation(exec, identifier, value, attributes);
+            return scopeObject;
+        }
+
+        static void visitChildren(JSCell*, SlotVisitor&);
+        bool isDynamicScope(bool& requiresDynamicChecks) const;
+        static JSObject* toThisObject(JSCell*, ExecState*);
+        static bool getOwnPropertySlot(JSCell*, ExecState*, const Identifier&, PropertySlot&);
+        static void put(JSCell*, ExecState*, const Identifier&, JSValue, PutPropertySlot&);
+
+        static void putWithAttributes(JSObject*, ExecState*, const Identifier&, JSValue, unsigned attributes);
+
+        static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto) { return Structure::create(globalData, globalObject, proto, TypeInfo(StaticScopeObjectType, StructureFlags), &s_info); }
+
+        static const ClassInfo s_info;
+
+    protected:
+        void finishCreation(ExecState* exec, const Identifier& identifier, JSValue value, unsigned attributes)
+        {
+            Base::finishCreation(exec->globalData());
+            m_registerStore.set(exec->globalData(), this, value);
+            symbolTable().add(identifier.impl(), SymbolTableEntry(-1, attributes));
+        }
+        static const unsigned StructureFlags = IsEnvironmentRecord | OverridesGetOwnPropertySlot | OverridesVisitChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags;
+
+    private:
+        JSStaticScopeObject(ExecState* exec)
+            : JSVariableObject(exec->globalData(), exec->globalData().staticScopeStructure.get(), &m_symbolTable, reinterpret_cast<Register*>(&m_registerStore + 1))
+        {
+        }
+
+        static void destroy(JSCell*);
+
+        SymbolTable m_symbolTable;
+        WriteBarrier<Unknown> m_registerStore;
+    };
+
+    inline bool JSStaticScopeObject::isDynamicScope(bool&) const
+    {
+        return false;
+    }
+
+}
+
+#endif // JSStaticScopeObject_h