webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 87 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/JSWrapperObject.h b/Source/JavaScriptCore/runtime/JSWrapperObject.h
new file mode 100644
index 000000000..1036add59
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/JSWrapperObject.h
@@ -0,0 +1,87 @@
+/*
+ *  Copyright (C) 2006 Maks Orlovich
+ *  Copyright (C) 2006, 2007, 2008, 2009 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
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef JSWrapperObject_h
+#define JSWrapperObject_h
+
+#include "JSDestructibleObject.h"
+
+namespace JSC {
+
+// This class is used as a base for classes such as String,
+// Number, Boolean and Date which are wrappers for primitive types.
+class JSWrapperObject : public JSDestructibleObject {
+public:
+    typedef JSDestructibleObject Base;
+
+    static size_t allocationSize(size_t inlineCapacity)
+    {
+        ASSERT_UNUSED(inlineCapacity, !inlineCapacity);
+        return sizeof(JSWrapperObject);
+    }
+
+    JSValue internalValue() const;
+    void setInternalValue(VM&, JSValue);
+
+    static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) 
+    { 
+        return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
+    }
+
+    static ptrdiff_t internalValueOffset() { return OBJECT_OFFSETOF(JSWrapperObject, m_internalValue); }
+    static ptrdiff_t internalValueCellOffset()
+    {
+#if USE(JSVALUE64)
+        return internalValueOffset();
+#else
+        return internalValueOffset() + OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload);
+#endif
+    }
+
+protected:
+    explicit JSWrapperObject(VM&, Structure*);
+
+    JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
+
+private:
+    WriteBarrier<Unknown> m_internalValue;
+};
+
+inline JSWrapperObject::JSWrapperObject(VM& vm, Structure* structure)
+    : JSDestructibleObject(vm, structure)
+{
+}
+
+inline JSValue JSWrapperObject::internalValue() const
+{
+    return m_internalValue.get();
+}
+
+inline void JSWrapperObject::setInternalValue(VM& vm, JSValue value)
+{
+    ASSERT(value);
+    ASSERT(!value.isObject());
+    m_internalValue.set(vm, this, value);
+}
+
+} // namespace JSC
+
+#endif // JSWrapperObject_h