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/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed 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 org.codehaus.groovy.antlr.treewalker;

import org.codehaus.groovy.antlr.GroovySourceAST;

/**
 * A simple preorder traversal over the supplied antlr AST.
 *
 * @author Jeremy Rayner
 * @version $Revision$
 */
public class PreOrderTraversal extends TraversalHelper {
    
    /**
     * A simple preorder traversal over the supplied antlr AST.
     * @param visitor the Visitor to call for each node visited 
     */
    public PreOrderTraversal(Visitor visitor) {
        super(visitor);
    }

    public void accept(GroovySourceAST currentNode) {
        push(currentNode);
        openingVisit(currentNode);
        acceptChildren(currentNode);
        closingVisit(currentNode);
        pop();
    }
}