diff options
Diffstat (limited to 'antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/debug/TraceDebugEventListener.java')
| -rw-r--r-- | antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/debug/TraceDebugEventListener.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/debug/TraceDebugEventListener.java b/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/debug/TraceDebugEventListener.java new file mode 100644 index 0000000..de9366d --- /dev/null +++ b/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/debug/TraceDebugEventListener.java @@ -0,0 +1,96 @@ +/* + [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); + } +} + |