| /* |
| * 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; |
| |
| import antlr.collections.AST; |
| import antlr.*; |
| |
| import java.util.List; |
| import java.util.ArrayList; |
| |
| /** |
| * We have an AST subclass so we can track source information. |
| * Very odd that ANTLR doesn't do this by default. |
| * |
| * @author Mike Spille |
| * @author Jeremy Rayner <groovy@ross-rayner.com> |
| */ |
| public class GroovySourceAST extends CommonAST implements Comparable { |
| private int line; |
| private int col; |
| private int lineLast; |
| private int colLast; |
| private String snippet; |
| |
| public GroovySourceAST() { |
| } |
| |
| public GroovySourceAST(Token t) { |
| super(t); |
| } |
| |
| public void initialize(AST ast) { |
| super.initialize(ast); |
| line = ast.getLine(); |
| col = ast.getColumn(); |
| } |
| |
| public void initialize(Token t) { |
| super.initialize(t); |
| line = t.getLine(); |
| col = t.getColumn(); |
| } |
| |
| public void setLast(Token last) { |
| lineLast = last.getLine(); |
| colLast = last.getColumn(); |
| } |
| |
| public int getLineLast() { |
| return lineLast; |
| } |
| |
| public void setLineLast(int lineLast) { |
| this.lineLast = lineLast; |
| } |
| |
| public int getColumnLast() { |
| return colLast; |
| } |
| |
| public void setColumnLast(int colLast) { |
| this.colLast = colLast; |
| } |
| |
| public void setLine(int line) { |
| this.line = line; |
| } |
| |
| public int getLine() { |
| return (line); |
| } |
| |
| public void setColumn(int column) { |
| this.col = column; |
| } |
| |
| public int getColumn() { |
| return (col); |
| } |
| |
| public void setSnippet(String snippet) { |
| this.snippet = snippet; |
| } |
| |
| public String getSnippet() { |
| return snippet; |
| } |
| |
| public int compareTo(Object object) { |
| if (object == null) { |
| return 0; |
| } |
| if (!(object instanceof AST)) { |
| return 0; |
| } |
| AST that = (AST) object; |
| |
| // todo - possibly check for line/col with values of 0 or less... |
| |
| if (this.getLine() < that.getLine()) { |
| return -1; |
| } |
| if (this.getLine() > that.getLine()) { |
| return 1; |
| } |
| |
| if (this.getColumn() < that.getColumn()) { |
| return -1; |
| } |
| if (this.getColumn() > that.getColumn()) { |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| public GroovySourceAST childAt(int position) { |
| List list = new ArrayList(); |
| AST child = this.getFirstChild(); |
| while (child != null) { |
| list.add(child); |
| child = child.getNextSibling(); |
| } |
| try { |
| return (GroovySourceAST)list.get(position); |
| } catch (IndexOutOfBoundsException e) { |
| return null; |
| } |
| } |
| |
| public GroovySourceAST childOfType(int type) { |
| AST child = this.getFirstChild(); |
| while (child != null) { |
| if (child.getType() == type) { return (GroovySourceAST)child; } |
| child = child.getNextSibling(); |
| } |
| return null; |
| } |
| |
| } |