[Tcl-bugs] [ tcl-Bugs-2850901 ] bad line count from [info frame]

[SourceForge.net <no...@so...>]

Bugs item #2850901, was opened at 2009-09-04 00:48
Message generated for change (Comment added) made by dgp
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=2850901&group_id=10894

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: 47. Bytecode Compiler
Group: development: 8.6b1.1
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Don Porter (dgp)
>Assigned to: Don Porter (dgp)
Summary: bad line count from [info frame]

Initial Comment:

I think this is due to a flaw in TclCompileScript:

$ cat lines.tcl
puts [format %s {}
][info frame 0]

$ make shell SCRIPT=lines.tcl
...
type source line 1 file /home/dgp/cvs/tcl-only/unix/lines.tcl cmd {info frame 0} level 0

Ought to report line 2 instead of line 1.

----------------------------------------------------------------------

>Comment By: Don Porter (dgp)
Date: 2009-09-07 16:02

Message:

fix committed to HEAD

----------------------------------------------------------------------

Comment By: Andreas Kupries (andreas_kupries)
Date: 2009-09-04 16:29

Message:
Uh. Crash.

    info.test
    ---- info-30.30 start
   ++++ info-30.30 PASSED
    ---- info-30.31 start
    Test file error:
    Bad stack top 5 at pc 59 in TclExecuteByteCode (min 0, max 4)
      executing info frame 0
    TclExecuteByteCode execution failure: bad stack top


----------------------------------------------------------------------

Comment By: Andreas Kupries (andreas_kupries)
Date: 2009-09-04 15:57

Message:
Thanks for the #280 work.


----------------------------------------------------------------------

Comment By: Don Porter (dgp)
Date: 2009-09-04 13:34

Message:

Patch 2314561 included the fix for the
TclCompileScript flaw.  Ticket still open
for the other path to be fixed up.

----------------------------------------------------------------------

Comment By: Don Porter (dgp)
Date: 2009-09-04 09:12

Message:
Actually that original demo shows the
same problem in TclSubstTokens.

To see it in TclCompileScript, do this:

$ make shell
...
% source lines.tcl

I have a fix for TclCompileScript in my sandbox.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=2850901&group_id=10894