1/*
2 * [The "BSD licence"]
3 * Copyright (c) 2005-2008 Terence Parr
4 * All rights reserved.
5 *
6 * Conversion to C#:
7 * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33namespace Antlr.Runtime.Debug {
34    using Antlr.Runtime.JavaExtensions;
35
36    using Console = System.Console;
37    using ITreeAdaptor = Antlr.Runtime.Tree.ITreeAdaptor;
38
39    /** <summary>Print out (most of) the events... Useful for debugging, testing...</summary> */
40    public class TraceDebugEventListener : BlankDebugEventListener {
41        ITreeAdaptor adaptor;
42
43        public TraceDebugEventListener(ITreeAdaptor adaptor) {
44            this.adaptor = adaptor;
45        }
46
47        public void EnterRule(string ruleName) {
48            Console.Out.WriteLine("enterRule " + ruleName);
49        }
50        public void ExitRule(string ruleName) {
51            Console.Out.WriteLine("exitRule " + ruleName);
52        }
53        public override void EnterSubRule(int decisionNumber) {
54            Console.Out.WriteLine("enterSubRule");
55        }
56        public override void ExitSubRule(int decisionNumber) {
57            Console.Out.WriteLine("exitSubRule");
58        }
59        public override void Location(int line, int pos) {
60            Console.Out.WriteLine("location " + line + ":" + pos);
61        }
62
63        #region Tree parsing stuff
64
65        public override void ConsumeNode(object t) {
66            int ID = adaptor.GetUniqueID(t);
67            string text = adaptor.GetText(t);
68            int type = adaptor.GetType(t);
69            Console.Out.WriteLine("consumeNode " + ID + " " + text + " " + type);
70        }
71
72        public override void LT(int i, object t) {
73            int ID = adaptor.GetUniqueID(t);
74            string text = adaptor.GetText(t);
75            int type = adaptor.GetType(t);
76            Console.Out.WriteLine("LT " + i + " " + ID + " " + text + " " + type);
77        }
78
79        #endregion
80
81
82        #region AST stuff
83
84        public override void NilNode(object t) {
85            Console.Out.WriteLine("nilNode " + adaptor.GetUniqueID(t));
86        }
87
88        public override void CreateNode(object t) {
89            int ID = adaptor.GetUniqueID(t);
90            string text = adaptor.GetText(t);
91            int type = adaptor.GetType(t);
92            Console.Out.WriteLine("create " + ID + ": " + text + ", " + type);
93        }
94
95        public override void CreateNode(object node, IToken token) {
96            int ID = adaptor.GetUniqueID(node);
97            string text = adaptor.GetText(node);
98            int tokenIndex = token.TokenIndex;
99            Console.Out.WriteLine("create " + ID + ": " + tokenIndex);
100        }
101
102        public override void BecomeRoot(object newRoot, object oldRoot) {
103            Console.Out.WriteLine("becomeRoot " + adaptor.GetUniqueID(newRoot) + ", " +
104                               adaptor.GetUniqueID(oldRoot));
105        }
106
107        public override void AddChild(object root, object child) {
108            Console.Out.WriteLine("addChild " + adaptor.GetUniqueID(root) + ", " +
109                               adaptor.GetUniqueID(child));
110        }
111
112        public override void SetTokenBoundaries(object t, int tokenStartIndex, int tokenStopIndex) {
113            Console.Out.WriteLine("setTokenBoundaries " + adaptor.GetUniqueID(t) + ", " +
114                               tokenStartIndex + ", " + tokenStopIndex);
115        }
116
117        #endregion
118    }
119}
120