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 
33 using System;
34 using System.Diagnostics;
35 
36 using TargetInvocationException = System.Reflection.TargetInvocationException;
37 
38 namespace Antlr.Runtime.JavaExtensions {
39     public static class ExceptionExtensions {
40 #if DEBUG
41         [Obsolete]
getMessage(Exception e)42         public static string getMessage(Exception e) {
43             return e.Message;
44         }
45 #endif
46 
getStackTrace(Exception e)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]
getMethodName(StackFrame frame)60         public static string getMethodName(StackFrame frame) {
61             return frame.GetMethod().Name;
62         }
63 
64         [Obsolete]
getClassName(StackFrame frame)65         public static string getClassName(StackFrame frame) {
66             return frame.GetMethod().DeclaringType.Name;
67         }
68 #endif
69 
PrintStackTrace(Exception e)70         public static void PrintStackTrace(Exception e) {
71             ExceptionExtensions.PrintStackTrace(e, Console.Out);
72         }
PrintStackTrace(Exception e, System.IO.TextWriter writer)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]
getTargetException(TargetInvocationException e)84         public static Exception getTargetException(TargetInvocationException e) {
85             return e.InnerException ?? e;
86         }
87 #endif
88     }
89 }
90