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Diffstat (limited to 'runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugEventHub.cs')
| -rw-r--r-- | runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugEventHub.cs | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugEventHub.cs b/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugEventHub.cs new file mode 100644 index 0000000..bea6799 --- /dev/null +++ b/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugEventHub.cs @@ -0,0 +1,366 @@ +/* + * [The "BSD licence"] + * Copyright (c) 2005-2008 Terence Parr + * All rights reserved. + * + * Conversion to C#: + * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. + * 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. + */ + +namespace Antlr.Runtime.Debug +{ + using System.Collections.Generic; + + /** <summary> + * Broadcast debug events to multiple listeners. Lets you debug and still + * use the event mechanism to build parse trees etc... Not thread-safe. + * Don't add events in one thread while parser fires events in another. + * </summary> + * + * <seealso cref="DebugEventRepeater"/> + */ + public class DebugEventHub : IDebugEventListener + { + List<IDebugEventListener> _listeners = new List<IDebugEventListener>(); + + public DebugEventHub( params IDebugEventListener[] listeners ) + { + _listeners = new List<IDebugEventListener>( listeners ); + } + + public virtual void Initialize() + { + } + + /** <summary> + * Add another listener to broadcast events too. Not thread-safe. + * Don't add events in one thread while parser fires events in another. + * </summary> + */ + public virtual void AddListener( IDebugEventListener listener ) + { + _listeners.Add( listener ); + } + + /* To avoid a mess like this: + public void enterRule(final String ruleName) { + broadcast(new Code(){ + public void exec(DebugEventListener listener) {listener.enterRule(ruleName);}} + ); + } + I am dup'ing the for-loop in each. Where are Java closures!? blech! + */ + + public virtual void EnterRule( string grammarFileName, string ruleName ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EnterRule( grammarFileName, ruleName ); + } + } + + public virtual void ExitRule( string grammarFileName, string ruleName ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ExitRule( grammarFileName, ruleName ); + } + } + + public virtual void EnterAlt( int alt ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EnterAlt( alt ); + } + } + + public virtual void EnterSubRule( int decisionNumber ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EnterSubRule( decisionNumber ); + } + } + + public virtual void ExitSubRule( int decisionNumber ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ExitSubRule( decisionNumber ); + } + } + + public virtual void EnterDecision(int decisionNumber, bool couldBacktrack) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EnterDecision( decisionNumber, couldBacktrack ); + } + } + + public virtual void ExitDecision( int decisionNumber ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ExitDecision( decisionNumber ); + } + } + + public virtual void Location( int line, int pos ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Location( line, pos ); + } + } + + public virtual void ConsumeToken( IToken token ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ConsumeToken( token ); + } + } + + public virtual void ConsumeHiddenToken( IToken token ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ConsumeHiddenToken( token ); + } + } + + public virtual void LT( int index, IToken t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.LT( index, t ); + } + } + + public virtual void Mark( int index ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Mark( index ); + } + } + + public virtual void Rewind( int index ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Rewind( index ); + } + } + + public virtual void Rewind() + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Rewind(); + } + } + + public virtual void BeginBacktrack( int level ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.BeginBacktrack( level ); + } + } + + public virtual void EndBacktrack( int level, bool successful ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EndBacktrack( level, successful ); + } + } + + public virtual void RecognitionException( RecognitionException e ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.RecognitionException( e ); + } + } + + public virtual void BeginResync() + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.BeginResync(); + } + } + + public virtual void EndResync() + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.EndResync(); + } + } + + public virtual void SemanticPredicate( bool result, string predicate ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.SemanticPredicate( result, predicate ); + } + } + + public virtual void Commence() + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Commence(); + } + } + + public virtual void Terminate() + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.Terminate(); + } + } + + + #region Tree parsing stuff + + public virtual void ConsumeNode( object t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ConsumeNode( t ); + } + } + + public virtual void LT( int index, object t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.LT( index, t ); + } + } + + #endregion + + + #region AST Stuff + + public virtual void NilNode( object t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.NilNode( t ); + } + } + + public virtual void ErrorNode( object t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.ErrorNode( t ); + } + } + + public virtual void CreateNode( object t ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.CreateNode( t ); + } + } + + public virtual void CreateNode( object node, IToken token ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.CreateNode( node, token ); + } + } + + public virtual void BecomeRoot( object newRoot, object oldRoot ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.BecomeRoot( newRoot, oldRoot ); + } + } + + public virtual void AddChild( object root, object child ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.AddChild( root, child ); + } + } + + public virtual void SetTokenBoundaries( object t, int tokenStartIndex, int tokenStopIndex ) + { + for ( int i = 0; i < _listeners.Count; i++ ) + { + IDebugEventListener listener = _listeners[i]; + listener.SetTokenBoundaries( t, tokenStartIndex, tokenStopIndex ); + } + } + + #endregion + } +} |