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 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
33using System;
34using System.Diagnostics;
35
36using TargetInvocationException = System.Reflection.TargetInvocationException;
37
38namespace Antlr.Runtime.JavaExtensions {
39    public static class ExceptionExtensions {
40#if DEBUG
41        [Obsolete]
42        public static string getMessage(Exception e) {
43            return e.Message;
44        }
45#endif
46
47        public static StackFrame[] getStackTrace(Exception e) {
48            StackTrace trace = new StackTrace(e, true);
49            StackFrame[] frames = trace.GetFrames();
50            if (frames == null) {
51                // don't include this helper function in the trace
52                Array stackTrace = new StackTrace(true).GetFrames();
53                Array.Copy(stackTrace, 1, frames, 0, stackTrace.Length);
54            }
55            return frames;
56        }
57
58#if DEBUG
59        [Obsolete]
60        public static string getMethodName(StackFrame frame) {
61            return frame.GetMethod().Name;
62        }
63
64        [Obsolete]
65        public static string getClassName(StackFrame frame) {
66            return frame.GetMethod().DeclaringType.Name;
67        }
68#endif
69
70        public static void PrintStackTrace(Exception e) {
71            ExceptionExtensions.PrintStackTrace(e, Console.Out);
72        }
73        public static void PrintStackTrace(Exception e, System.IO.TextWriter writer) {
74            writer.WriteLine(e.ToString());
75            string trace = e.StackTrace ?? string.Empty;
76            foreach (string line in trace.Split('\n', '\r')) {
77                if (!string.IsNullOrEmpty(line))
78                    writer.WriteLine("        " + line);
79            }
80        }
81
82#if DEBUG
83        [Obsolete]
84        public static Exception getTargetException(TargetInvocationException e) {
85            return e.InnerException ?? e;
86        }
87#endif
88    }
89}
90