/*
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

package macromedia.asc.semantics;

public final class PrototypeWalker extends ObjectValueWalker
{
	private ObjectValue curObjVal  = null;

	public PrototypeWalker(ObjectValue startObj) {
		curObjVal = startObj;
	}

	public boolean hasNext() {
		return (curObjVal != null);
	}

	public ObjectValue next() {
		final ObjectValue ret = curObjVal;
		curObjVal = curObjVal.proto();
		return ret;
	}

	void clear() {
		curObjVal = null;
	}
}
