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;
35using System.Linq;
36
37using TargetInvocationException = System.Reflection.TargetInvocationException;
38
39namespace 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