diff options
Diffstat (limited to 'runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugTreeNodeStream.cs')
| -rw-r--r-- | runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugTreeNodeStream.cs | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugTreeNodeStream.cs b/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugTreeNodeStream.cs new file mode 100644 index 0000000..4af8c5b --- /dev/null +++ b/runtime/CSharp3/Sources/Antlr3.Runtime.Debug/DebugTreeNodeStream.cs @@ -0,0 +1,216 @@ +/* + * [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 Obsolete = System.ObsoleteAttribute; + using ITreeAdaptor = Antlr.Runtime.Tree.ITreeAdaptor; + using ITreeNodeStream = Antlr.Runtime.Tree.ITreeNodeStream; + + /** <summary> + * Debug any tree node stream. The constructor accepts the stream + * and a debug listener. As node stream calls come in, debug events + * are triggered. + * </summary> + */ + public class DebugTreeNodeStream : ITreeNodeStream + { + protected IDebugEventListener dbg; + protected ITreeAdaptor adaptor; + protected ITreeNodeStream input; + protected bool initialStreamState = true; + + /** <summary>Track the last mark() call result value for use in rewind().</summary> */ + protected int lastMarker; + + public DebugTreeNodeStream( ITreeNodeStream input, + IDebugEventListener dbg ) + { + this.input = input; + this.adaptor = input.TreeAdaptor; + this.input.UniqueNavigationNodes = true; + DebugListener = dbg; + } + + #region Properties + public virtual IDebugEventListener DebugListener + { + get + { + return dbg; + } + set + { + dbg = value; + } + } + public virtual int Index + { + get + { + return input.Index; + } + } + public virtual ITokenStream TokenStream + { + get + { + return input.TokenStream; + } + } + public virtual ITreeAdaptor TreeAdaptor + { + get + { + return adaptor; + } + } + public virtual object TreeSource + { + get + { + return input; + } + } + /** <summary> + * It is normally this object that instructs the node stream to + * create unique nav nodes, but to satisfy interface, we have to + * define it. It might be better to ignore the parameter but + * there might be a use for it later, so I'll leave. + * </summary> + */ + public bool UniqueNavigationNodes + { + get + { + return input.UniqueNavigationNodes; + } + set + { + input.UniqueNavigationNodes = value; + } + } + + #endregion + + public virtual void Consume() + { + object node = input.LT( 1 ); + input.Consume(); + dbg.ConsumeNode( node ); + } + + public virtual object this[int i] + { + get + { + return input[i]; + } + } + + public virtual object LT( int i ) + { + object node = input.LT( i ); + int ID = adaptor.GetUniqueID( node ); + string text = adaptor.GetText( node ); + int type = adaptor.GetType( node ); + dbg.LT( i, node ); + return node; + } + + public virtual int LA( int i ) + { + object node = input.LT( i ); + int ID = adaptor.GetUniqueID( node ); + string text = adaptor.GetText( node ); + int type = adaptor.GetType( node ); + dbg.LT( i, node ); + return type; + } + + public virtual int Mark() + { + lastMarker = input.Mark(); + dbg.Mark( lastMarker ); + return lastMarker; + } + + public virtual void Rewind( int marker ) + { + dbg.Rewind( marker ); + input.Rewind( marker ); + } + + public virtual void Rewind() + { + dbg.Rewind(); + input.Rewind( lastMarker ); + } + + public virtual void Release( int marker ) + { + } + + public virtual void Seek( int index ) + { + // TODO: implement seek in dbg interface + // db.seek(index); + input.Seek( index ); + } + + public virtual int Count + { + get + { + return input.Count; + } + } + + public virtual string SourceName + { + get + { + return TokenStream.SourceName; + } + } + + public virtual void ReplaceChildren( object parent, int startChildIndex, int stopChildIndex, object t ) + { + input.ReplaceChildren( parent, startChildIndex, stopChildIndex, t ); + } + + public virtual string ToString( object start, object stop ) + { + return input.ToString( start, stop ); + } + } +} |