1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * [The "BSD licence"] 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2005-2008 Terence Parr 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Conversion to C#: 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Redistribution and use in source and binary forms, with or without 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * modification, are permitted provided that the following conditions 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * are met: 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 1. Redistributions of source code must retain the above copyright 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 2. Redistributions in binary form must reproduce the above copyright 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer in the 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * documentation and/or other materials provided with the distribution. 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 3. The name of the author may not be used to endorse or promote products 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * derived from this software without specific prior written permission. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvernamespace Antlr.Runtime.Debug { 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using Antlr.Runtime.JavaExtensions; 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using Console = System.Console; 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using IOException = System.IO.IOException; 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public class DebugParser : Parser { 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary>Who to notify when events in the parser occur.</summary> */ 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public IDebugEventListener dbg = null; 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Used to differentiate between fixed lookahead and cyclic DFA decisions 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * while profiling. 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public bool isCyclicDecision = false; 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Create a normal parser except wrap the token stream in a debug 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * proxy that fires consume events. 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugParser(ITokenStream input, IDebugEventListener dbg, RecognizerSharedState state) 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : base(input is DebugTokenStream ? input : new DebugTokenStream(input, dbg), state) { 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SetDebugListener(dbg); 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugParser(ITokenStream input, RecognizerSharedState state) 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : base(input is DebugTokenStream ? input : new DebugTokenStream(input, null), state) { 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugParser(ITokenStream input, IDebugEventListener dbg) 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : this(input is DebugTokenStream ? input : new DebugTokenStream(input, dbg), dbg, null) { 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override IDebugEventListener DebugListener { 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver get { 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return dbg; 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Provide a new debug event listener for this parser. Notify the 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * input stream too that it should send events to this listener. 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void SetDebugListener(IDebugEventListener value) { 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver DebugTokenStream debugTokenStream = input as DebugTokenStream; 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (debugTokenStream != null) 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver debugTokenStream.DebugListener = value; 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg = value; 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void ReportError(IOException e) { 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Console.Error.WriteLine(e); 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ExceptionExtensions.PrintStackTrace(e, Console.Error); 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void BeginResync() { 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.BeginResync(); 94324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver base.BeginResync(); 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void EndResync() { 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.EndResync(); 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver base.EndResync(); 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void BeginBacktrack(int level) { 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.BeginBacktrack(level); 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void EndBacktrack(int level, bool successful) { 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.EndBacktrack(level, successful); 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 109324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void ReportError(RecognitionException e) { 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver base.ReportError(e); 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.RecognitionException(e); 113324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 116