| /* |
| [The "BSD license"] |
| Copyright (c) 2005-2009 Terence Parr |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| 3. The name of the author may not be used to endorse or promote products |
| derived from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.antlr.runtime.debug; |
| |
| import org.antlr.runtime.Token; |
| import org.antlr.runtime.tree.TreeAdaptor; |
| |
| /** Print out (most of) the events... Useful for debugging, testing... */ |
| public class TraceDebugEventListener extends BlankDebugEventListener { |
| TreeAdaptor adaptor; |
| |
| public TraceDebugEventListener(TreeAdaptor adaptor) { |
| this.adaptor = adaptor; |
| } |
| |
| public void enterRule(String ruleName) { System.out.println("enterRule "+ruleName); } |
| public void exitRule(String ruleName) { System.out.println("exitRule "+ruleName); } |
| public void enterSubRule(int decisionNumber) { System.out.println("enterSubRule"); } |
| public void exitSubRule(int decisionNumber) { System.out.println("exitSubRule"); } |
| public void location(int line, int pos) {System.out.println("location "+line+":"+pos);} |
| |
| // Tree parsing stuff |
| |
| public void consumeNode(Object t) { |
| int ID = adaptor.getUniqueID(t); |
| String text = adaptor.getText(t); |
| int type = adaptor.getType(t); |
| System.out.println("consumeNode "+ID+" "+text+" "+type); |
| } |
| |
| public void LT(int i, Object t) { |
| int ID = adaptor.getUniqueID(t); |
| String text = adaptor.getText(t); |
| int type = adaptor.getType(t); |
| System.out.println("LT "+i+" "+ID+" "+text+" "+type); |
| } |
| |
| |
| // AST stuff |
| public void nilNode(Object t) {System.out.println("nilNode "+adaptor.getUniqueID(t));} |
| |
| public void createNode(Object t) { |
| int ID = adaptor.getUniqueID(t); |
| String text = adaptor.getText(t); |
| int type = adaptor.getType(t); |
| System.out.println("create "+ID+": "+text+", "+type); |
| } |
| |
| public void createNode(Object node, Token token) { |
| int ID = adaptor.getUniqueID(node); |
| String text = adaptor.getText(node); |
| int tokenIndex = token.getTokenIndex(); |
| System.out.println("create "+ID+": "+tokenIndex); |
| } |
| |
| public void becomeRoot(Object newRoot, Object oldRoot) { |
| System.out.println("becomeRoot "+adaptor.getUniqueID(newRoot)+", "+ |
| adaptor.getUniqueID(oldRoot)); |
| } |
| |
| public void addChild(Object root, Object child) { |
| System.out.println("addChild "+adaptor.getUniqueID(root)+", "+ |
| adaptor.getUniqueID(child)); |
| } |
| |
| public void setTokenBoundaries(Object t, int tokenStartIndex, int tokenStopIndex) { |
| System.out.println("setTokenBoundaries "+adaptor.getUniqueID(t)+", "+ |
| tokenStartIndex+", "+tokenStopIndex); |
| } |
| } |
| |