[slime-devel] sb-impl::indenting-streams on the chopping block

[Matthias Koeppe]

On Thu, Oct 30, 2008 at 9:39 AM, Nikodemus Siivola
<nikodemus at random-state.net> wrote:
> Aside from slime/contrib/swank-presentations.lisp
>
>  (or (and (typep stream 'sb-impl::indenting-stream)
>           (slime-stream-p (sb-impl::indenting-stream-stream stream)))
>      (and (typep stream (find-symbol "PRETTY-STREAM" 'sb-pretty))
>           (find-symbol "ENQUEUE-ANNOTATION" 'sb-pretty)
>           (not *use-dedicated-output-stream*)
>           (slime-stream-p (sb-pretty::pretty-stream-target stream)))))
>
> SB-IMPL::INDENTING-STREAM is, as far as I can tell, otherwise unused.
>
> Does someone actually use them? Any objections to deleting them? (And
> the first leg of the OR in Slime.)

CMUCL uses these streams within DESCRIBE. The above code in SLIME was
meant to ensure that "presentations" work inside the DESCRIBE output
-- I must have added it under the assumption that if INDENTING-STREAMS
exist in SBCL, they are also used.

I have now checked that SBCL does actually not use INDENTING-STREAMs
in DESCRIBE, so please feel free to remove them from SBCL and also
this code from SLIME.

Matthias
-- 
Matthias Koeppe -- http://www.math.ucdavis.edu/~mkoeppe