Re: [j-devel] pprint bug

[Andras S. <as...@ma...>]

On Fri, 8 Oct 2004, Peter Graves wrote:

> On Fri, 24 Sep 2004 at 16:15:26 +0200, Andras Simon wrote:
>> (defun listener-eval (&rest x))
>>
>> (let ((*print-circle* t))
>>      (pprint (list 'apply
>>                    '((listener-eval "(setq a (backtrace-as-list)) ")
>>                    "COMMON-LISP-USER"
>>                     123))))
>>
>> Debugger invoked on condition of type TYPE-ERROR:
>>    The value #S(XP::XP-STRUCTURE :BASE-STREAM #<STREAM @ #x17cd15d> :LINEL 70 .....) is not of type character output stream.
>>
>> I would've liked to trigger the bug with a simpler case but this is
>> how far I could get.
>
> This morning I checked in new versions of print.lisp and pprint.lisp
> that fix this bug.

Thanks Peter, this fix lets me pretty print frames in backtraces in
slime, which makes them much more readable.

> With these changes, ABCL in current CVS fails 114 out of 18159 tests in
> the ANSI test suite, down from 164 failures out of 17942 tests two
> weeks ago.

Impressive figures!

> Barring interrupts, my next project (starting today) will be to fix the
> aforementioned awful CLOS slowness.

Perhaps this is a good time to ask why you decided to adapt closette,
and not pcl (or its CMUCL/SBCL version). Just curious.

Andras