| /* |
| * 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 java.util.Iterator; |
| import java.util.List; |
| |
| import org.codehaus.groovy.antlr.AntlrASTProcessor; |
| import org.codehaus.groovy.antlr.GroovySourceAST; |
| |
| import antlr.collections.AST; |
| |
| /** |
| * A simple iterator over an ordered (flat) List of the nodes of the AST. |
| * |
| * @author <a href="mailto:groovy@ross-rayner.com">Jeremy Rayner</a> |
| * @version $Revision: 3626 $ |
| */ |
| public class FlatNodeListTraversal extends TraversalHelper { |
| |
| public FlatNodeListTraversal(Visitor visitor) { |
| super(visitor); |
| } |
| |
| public AST process(AST t) { |
| GroovySourceAST node = (GroovySourceAST) t; |
| |
| // fetch all the nodes in this AST into a List |
| NodeCollector collector = new NodeCollector(); |
| AntlrASTProcessor internalTraversal = new PreOrderTraversal(collector); |
| internalTraversal.process(t); |
| List listOfAllNodesInThisAST = collector.getNodes(); |
| |
| // process each node in turn |
| setUp(node); |
| Iterator itr = listOfAllNodesInThisAST.iterator(); |
| while (itr.hasNext()) { |
| GroovySourceAST currentNode = (GroovySourceAST) itr.next(); |
| accept(currentNode); |
| } |
| tearDown(node); |
| return null; |
| } |
| |
| protected void accept(GroovySourceAST currentNode) { |
| openingVisit(currentNode); |
| closingVisit(currentNode); |
| } |
| } |