+++ /dev/null
-/*
- * Copyright (C) 2008 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.
- * 3. Neither the name of Apple Computer, 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 JSPropertyNameIterator_h
-#define JSPropertyNameIterator_h
-
-#include "JSObject.h"
-#include "JSString.h"
-#include "PropertyNameArray.h"
-
-namespace JSC {
-
- class Identifier;
- class JSObject;
-
- class JSPropertyNameIterator : public JSCell {
- public:
- static JSPropertyNameIterator* create(ExecState*, JSValuePtr);
-
- virtual ~JSPropertyNameIterator();
-
- virtual JSValuePtr toPrimitive(ExecState*, PreferredPrimitiveType) const;
- virtual bool getPrimitiveNumber(ExecState*, double&, JSValuePtr&);
- virtual bool toBoolean(ExecState*) const;
- virtual double toNumber(ExecState*) const;
- virtual UString toString(ExecState*) const;
- virtual JSObject* toObject(ExecState*) const;
-
- virtual void mark();
-
- JSValuePtr next(ExecState*);
- void invalidate();
-
- private:
- JSPropertyNameIterator();
- JSPropertyNameIterator(JSObject*, PassRefPtr<PropertyNameArrayData> propertyNameArrayData);
-
- JSObject* m_object;
- RefPtr<PropertyNameArrayData> m_data;
- PropertyNameArrayData::const_iterator m_position;
- PropertyNameArrayData::const_iterator m_end;
- };
-
-inline JSPropertyNameIterator::JSPropertyNameIterator()
- : JSCell(0)
- , m_object(0)
- , m_position(0)
- , m_end(0)
-{
-}
-
-inline JSPropertyNameIterator::JSPropertyNameIterator(JSObject* object, PassRefPtr<PropertyNameArrayData> propertyNameArrayData)
- : JSCell(0)
- , m_object(object)
- , m_data(propertyNameArrayData)
- , m_position(m_data->begin())
- , m_end(m_data->end())
-{
-}
-
-inline JSPropertyNameIterator* JSPropertyNameIterator::create(ExecState* exec, JSValuePtr v)
-{
- if (v.isUndefinedOrNull())
- return new (exec) JSPropertyNameIterator;
-
- JSObject* o = v.toObject(exec);
- PropertyNameArray propertyNames(exec);
- o->getPropertyNames(exec, propertyNames);
- return new (exec) JSPropertyNameIterator(o, propertyNames.releaseData());
-}
-
-inline JSValuePtr JSPropertyNameIterator::next(ExecState* exec)
-{
- if (m_position == m_end)
- return noValue();
-
- if (m_data->cachedStructure() == m_object->structure() && m_data->cachedPrototypeChain() == m_object->structure()->prototypeChain(exec))
- return jsOwnedString(exec, (*m_position++).ustring());
-
- do {
- if (m_object->hasProperty(exec, *m_position))
- return jsOwnedString(exec, (*m_position++).ustring());
- m_position++;
- } while (m_position != m_end);
-
- return noValue();
-}
-
-} // namespace JSC
-
-#endif // JSPropertyNameIterator_h