[MIT-Scheme-devel] [patch #9205] Fix deinstall of multiplexer when a default exists.

[Daniel White]

URL:
  <http://savannah.gnu.org/patch/?9205>

                 Summary: Fix deinstall of multiplexer when a default exists.
                 Project: MIT/GNU Scheme
            Submitted by: dwhite
            Submitted on: Mon 02 Jan 2017 03:17:39 PM GMT
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

This copes with a somewhat subtle case where a default exists but the
last generator is removed. By inverting the checks, we can ensure we
only look at the cdr of the generator list when generators is actually a
pair.

The bug was originally exhibited by an error when removing the last
generator with remove-generic-procedure-generator on a generic procedure
with a default generator.

I've added a somewhat clumsy test case, which I figured was an improvement
over having nothing at all. I'm happy to twiddle with it a bit more if there
are
any better suggestions or recommendations around how to tackle it.



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File Attachments:


-------------------------------------------------------
Date: Mon 02 Jan 2017 03:17:39 PM GMT  Name:
0001-Fix-deinstall-of-multiplexer-when-a-default-exists.patch  Size: 4kB   By:
dwhite

<http://savannah.gnu.org/patch/download.php?file_id=39341>

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