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-rw-r--r--runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreeVisitor.cs83
1 files changed, 0 insertions, 83 deletions
diff --git a/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreeVisitor.cs b/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreeVisitor.cs
deleted file mode 100644
index f6e49ea..0000000
--- a/runtime/CSharp3/Sources/Antlr3.Runtime/Tree/TreeVisitor.cs
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * [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.Tree
-{
- using Antlr.Runtime.Misc;
-
- /** <summary>Do a depth first walk of a tree, applying pre() and post() actions as we go.</summary> */
- public class TreeVisitor
- {
- protected ITreeAdaptor adaptor;
-
- public TreeVisitor( ITreeAdaptor adaptor )
- {
- this.adaptor = adaptor;
- }
- public TreeVisitor()
- : this( new CommonTreeAdaptor() )
- {
- }
-
- /** <summary>
- * Visit every node in tree t and trigger an action for each node
- * before/after having visited all of its children. Bottom up walk.
- * Execute both actions even if t has no children. Ignore return
- * results from transforming children since they will have altered
- * the child list of this node (their parent). Return result of
- * applying post action to this node.
- * </summary>
- */
- public object Visit( object t, ITreeVisitorAction action )
- {
- // System.out.println("visit "+((Tree)t).toStringTree());
- bool isNil = adaptor.IsNil( t );
- if ( action != null && !isNil )
- {
- t = action.Pre( t ); // if rewritten, walk children of new t
- }
- for ( int i = 0; i < adaptor.GetChildCount(t); i++ )
- {
- object child = adaptor.GetChild( t, i );
- Visit( child, action );
- }
- if ( action != null && !isNil )
- t = action.Post( t );
- return t;
- }
-
- public object Visit( object t, Func<object, object> preAction, Func<object, object> postAction )
- {
- return Visit( t, new TreeVisitorAction( preAction, postAction ) );
- }
- }
-}