Subversion Repositories openrisc

// Check that stack trace's work, and stack trace line numbers, if available,

// are correct.

public class StackTrace2

{

  public static void main(String[] args)

  {

    try

    {

      new StackTrace2().a();

    }

    catch (Exception x)

    {

      StackTraceElement[] trace = x.getStackTrace();

      checkTrace(trace);

    }

  }

  void a()

  {

    new Inner().foo();

  }

  class Inner

  {

    public void foo()

    {

      doCrash(null);

    }

    public void doCrash(Object o)

    {

      o.toString();

    }

  }

  static void checkTrace(StackTraceElement[] trace)

  {

    System.out.println("Trace length = " + trace.length);

    checkLine(trace[0], "StackTrace2$Inner", "doCrash", 33);

    checkLine(trace[1], "StackTrace2$Inner", "foo", 28);

    checkLine(trace[2], "StackTrace2", "a", 21);

    checkLine(trace[3], "StackTrace2", "main", 10);

  }

  static void checkLine(StackTraceElement frame, String expected_cl,

                        String expected_method, int expected_line)

  {

    if (frame.getClassName().equals(expected_cl))

      System.out.print(expected_cl);

    else

      System.out.print("FAIL - expected " + expected_cl + ", got: " +

                       frame.getClassName());

    System.out.print(".");

    if (frame.getMethodName().equals(expected_method))

      System.out.print(expected_method);

    else

      System.out.print("FAIL - expected " + expected_method + ", got: " +

                       frame.getMethodName());

    System.out.print(":");

    // Permit either the correct line number or no line number. This is so

    // we don't fail on platforms that don't yet support reading debug info 

    // for stack traces, or when no debug info is available.

    if (frame.getLineNumber() < 0

        || (frame.getLineNumber() == expected_line

            && frame.getFileName().equals("StackTrace2.java")))

      System.out.println("OK");

    else

      System.out.println("FAIL - expected " + expected_line + ", got: "

                         + frame.getLineNumber() + ", in file "

                         + frame.getFileName());

  }

}