throw exception override stacktrace double click log

Question

With a custom exception, I'm trying to give it a stacktrace without throwing so I can throw it later (holding the same stack trace). The problem I'm having is the new StackTrace is providing a different output than throw Exception.StackTrace, most notably missing [0x00002] which I'm guessing is what Unity is using to jump to the line number in visual studio when double-clicking the log. Is there any way to do this and have the double-click functionality still work?

 public class MyException : Exception
 {
     public MyException(string stackTrace)
     {
         _stackTrace = stackTrace;
     }
 
     string _stackTrace;
 
     public override string StackTrace
     {
         get
         {
             return _stackTrace;
         }
     }
 }

 try
 {
     throw new Exception(); // double-click goes right here
 }
 catch (Exception e)
 {
     Debug.Log("StackTrace: {" + e.StackTrace + "}"); // output: "StackTrace: {  at TestScript.Awake () [0x00002] in /Users/lol_tim/New Unity Project/Assets/TestScript.cs:28 }"
     throw new MyException(e.StackTrace);
 }

 try
 {
     throw new MyException(new System.Diagnostics.StackTrace(0, true).ToString()); // double-click does nothing
 }
 catch (Exception e)
 {
     Debug.Log("StackTrace: {" + e.StackTrace + "}"); // output: "StackTrace: {   at TestScript.Awake() in /Users/lol_tim/New Unity Project/Assets/TestScript.cs:line 28}"
     throw new MyException(e.StackTrace);
 }

Answer 1

Best Answer

Answer by ProtoTerminator · Dec 13, 2018 at 06:23 PM

It looks like I can get the double-click to work by substituting a gibberish code (not really sure what that's used for) and realigning the formatting to match, at least in english culture. I'm not sure if this works with non-english cultures (I tried changing my culture before running this code, but everything still came out in english for some reason). Of course this is extremely ugly and I wish there was a better way to do it.

 System.Text.StringBuilder sb = new System.Text.StringBuilder(new System.Diagnostics.StackTrace(0, true).ToString());
 sb.Remove(0, 1);
 sb.Append(" ");
 sb.Replace("(", " (");
 sb.Replace(") in", ") [0x00000] in");
 sb.Replace("\n ", " \n");
 sb.Replace("line ", string.Empty);
 newTrace = sb.ToString();

Add comment · Share

Answer 2

Convert an Exception stacktrace so that it keeps its links

         private const string format = "{0} in <a href=\"{1}\" line=\"{2}\">{3}:{4}</a>";
         private static string GetUnityFormatStacktrace(Exception pException )
         {
             string[] lines = pException.StackTrace.Split("\n");
 
             System.Text.StringBuilder builder = new System.Text.StringBuilder();
             for (int l = 0; l < lines.Length; l++)
             {
                 string currentLine = lines[l];
                 if (currentLine.Contains("Assets\\") == false)
                 {
                     builder.AppendLine(currentLine);
                     continue;
                 }
 
                 string[] pathLine = currentLine.Substring(lines[l].IndexOf("Assets\\")).Split(":");
                 string path = pathLine[0];
                 string line = pathLine[1];
                 string newLine = string.Format(format, currentLine.Split(" in ")[0], path, line, path, line);
                 builder.AppendLine(newLine);
             }
             return builder.ToString();
         }

throw exception override stacktrace double click log

2 Replies

Your answer

Follow this Question

Related Questions