001 /* 002 * Copyright (C) 2006-2007 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package org.codehaus.gmaven.runtime.support.stubgen.parser; 018 019 import org.codehaus.gmaven.runtime.support.stubgen.UnexpectedNodeException; 020 021 /** 022 * Abstraction of nodes of a parse tree. 023 * 024 * @version $Id: Node.java 18 2009-07-16 09:39:40Z user57 $ 025 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a> 026 */ 027 public interface Node 028 { 029 String text(); 030 031 boolean isLeaf(); 032 033 Node firstChild(); 034 035 Node nextSibling(); 036 037 int line(); 038 039 int column(); 040 041 // 042 // Type helpers 043 // 044 045 boolean is(String name); 046 047 boolean is(String[] names); 048 049 void ensure(String name) throws UnexpectedNodeException; 050 051 Node skip(String name) throws UnexpectedNodeException; 052 053 // 054 // Debug helpers 055 // 056 057 void dump(); 058 059 void dump(String pad); 060 }