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{ 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using Antlr.Runtime.JavaExtensions; 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using Console = System.Console; 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using IOException = System.IO.IOException; 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using ITreeNodeStream = Antlr.Runtime.Tree.ITreeNodeStream; 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using TreeParser = Antlr.Runtime.Tree.TreeParser; 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public class DebugTreeParser : TreeParser 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary>Who to notify when events in the parser occur.</summary> */ 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public IDebugEventListener dbg = null; 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Used to differentiate between fixed lookahead and cyclic DFA decisions 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * while profiling. 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public bool isCyclicDecision = false; 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Create a normal parser except wrap the token stream in a debug 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * proxy that fires consume events. 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugTreeParser( ITreeNodeStream input, IDebugEventListener dbg, RecognizerSharedState state ) 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : base( input is DebugTreeNodeStream ? input : new DebugTreeNodeStream( input, dbg ), state ) 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SetDebugListener(dbg); 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugTreeParser( ITreeNodeStream input, RecognizerSharedState state ) 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : base( input is DebugTreeNodeStream ? input : new DebugTreeNodeStream( input, null ), state ) 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public DebugTreeParser( ITreeNodeStream input, IDebugEventListener dbg ) 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : this( input is DebugTreeNodeStream ? input : new DebugTreeNodeStream( input, dbg ), dbg, null ) 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override IDebugEventListener DebugListener 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver get 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return dbg; 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Provide a new debug event listener for this parser. Notify the 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * input stream too that it should send events to this listener. 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void SetDebugListener(IDebugEventListener value) 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (input is DebugTreeNodeStream) 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ((DebugTreeNodeStream)input).DebugListener = value; 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver this.dbg = value; 94324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void ReportError( IOException e ) 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Console.Error.WriteLine( e ); 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ExceptionExtensions.PrintStackTrace( e, Console.Error ); 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void ReportError( RecognitionException e ) 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.RecognitionException( e ); 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver protected override object GetMissingSymbol( IIntStream input, 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver RecognitionException e, 109324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int expectedTokenType, 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BitSet follow ) 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver object o = base.GetMissingSymbol( input, e, expectedTokenType, follow ); 113324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.ConsumeNode( o ); 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return o; 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 116324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 117324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void BeginResync() 118324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 119324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.BeginResync(); 120324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 121324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 122324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override void EndResync() 123324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 124324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.EndResync(); 125324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 126324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 127324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void BeginBacktrack( int level ) 128324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 129324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.BeginBacktrack( level ); 130324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 131324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 132324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void EndBacktrack( int level, bool successful ) 133324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 134324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver dbg.EndBacktrack( level, successful ); 135324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 136324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 137324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 138