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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 
     36 using TargetInvocationException = System.Reflection.TargetInvocationException;
     37 
     38 namespace 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