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1   /***
2    *
3    * Copyright 2005 Jeremy Rayner
4    *
5    * Licensed under the Apache License, Version 2.0 (the "License");
6    * you may not use this file except in compliance with the License.
7    * You may obtain a copy of the License at
8    *
9    * http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   *
17   **/
18  package org.codehaus.groovy.antlr.treewalker;
19  
20  import org.codehaus.groovy.antlr.GroovySourceAST;
21  
22  /***
23   * A simple preorder traversal over the supplied antlr AST.
24   *
25   * @author <a href="mailto:groovy@ross-rayner.com">Jeremy Rayner</a>
26   * @version $Revision: 1.3 $
27   */
28  public class PreOrderTraversal extends TraversalHelper {
29      
30      /***
31       * A simple preorder traversal over the supplied antlr AST.
32       * @param visitor the Visitor to call for each node visited 
33       */
34      public PreOrderTraversal(Visitor visitor) {
35          super(visitor);
36      }
37  
38      public void accept(GroovySourceAST currentNode) {
39          openingVisit(currentNode);
40          acceptChildren(currentNode);
41          closingVisit(currentNode);
42      }
43  }