[Chicken-janitors] #1383: Add unexport form for modules

[Chicken Trac]

#1383: Add unexport form for modules
-------------------------+--------------------------------
 Reporter:  evhan        |                 Owner:
     Type:  enhancement  |                Status:  new
 Priority:  minor        |             Milestone:  someday
Component:  compiler     |               Version:  5.0
 Keywords:  modules      |  Estimated difficulty:  medium
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 An "unexport" form for modules would be useful. For example, this would
 only export the identifier "b":

 {{{
 (module m1 *
   (import chicken scheme)
   (define a 1)
   (define b 2)
   (unexport a))
 }}}


 This idea came out of #1376 and [http://lists.nongnu.org/archive/html
 /chicken-hackers/2017-06/msg00012.html associated discussions] on the
 mailing list. This would be a counterpart to "export", used to adjust the
 export list of a module from within its body.

 megane has posted a patch on [http://lists.nongnu.org/archive/html
 /chicken-hackers/2017-06/msg00027.html chicken-hackers], but it will need
 to be updated to apply to chicken-5.

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Ticket URL: <https://bugs.call-cc.org/ticket/1383>
CHICKEN Scheme <https://www.call-cc.org/>
CHICKEN Scheme is a compiler for the Scheme programming language.