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 using System.Linq;
36 
37 using TargetInvocationException = System.Reflection.TargetInvocationException;
38 
39 namespace Antlr.Runtime.JavaExtensions
40 {
41     public static class ExceptionExtensions
42     {
43 #if DEBUG
44         [Obsolete]
45         public static string getMessage( this Exception e )
46         {
47             return e.Message;
48         }
49 #endif
50 
51         public static StackFrame[] getStackTrace( this Exception e )
52         {
53             StackTrace trace = new StackTrace( e, true );
54             StackFrame[] frames = trace.GetFrames();
55             if ( frames == null )
56             {
57                 // don't include this helper function in the trace
58                 frames = new StackTrace( true ).GetFrames().Skip( 1 ).ToArray();
59             }
60             return frames;
61         }
62 
63 #if DEBUG
64         [Obsolete]
65         public static string getMethodName( this StackFrame frame )
66         {
67             return frame.GetMethod().Name;
68         }
69 
70         [Obsolete]
71         public static string getClassName( this StackFrame frame )
72         {
73             return frame.GetMethod().DeclaringType.Name;
74         }
75 #endif
76 
77         public static void PrintStackTrace( this Exception e )
78         {
79             e.PrintStackTrace( Console.Out );
80         }
81         public static void PrintStackTrace( this Exception e, System.IO.TextWriter writer )
82         {
83             writer.WriteLine( e.ToString() );
84             string trace = e.StackTrace ?? string.Empty;
85             foreach ( string line in trace.Split( '\n', '\r' ) )
86             {
87                 if ( !string.IsNullOrEmpty( line ) )
88                     writer.WriteLine( "        " + line );
89             }
90         }
91 
92 #if DEBUG
93         [Obsolete]
94         public static Exception getTargetException( this TargetInvocationException e )
95         {
96             return e.InnerException ?? e;
97         }
98 #endif
99     }
100 }
101