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      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