[GHC] #9898: Wanted: higher-order type-level programming

GHC ghc-devs at haskell.org
Sun Dec 21 21:01:01 UTC 2014


#9898: Wanted: higher-order type-level programming
-------------------------------------+-------------------------------------
              Reporter:  erisco      |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:
              Priority:  normal      |          Version:  7.8.3
             Component:  Compiler    |         Keywords:
  (Type checker)                     |     Architecture:  x86_64 (amd64)
            Resolution:              |       Difficulty:  Unknown
      Operating System:  Windows     |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  rejects valid program              |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by rwbarton):

 Replying to [comment:5 jstolarek]:
 > > will such usage be banned n 7.8.4?
 > No. But that's still a bug and you shouldn't construct your code around
 this.

 Really? #9433 is marked as merged as 7.8.4, or am I misunderstanding
 something here? Or is there a distinction between the "applied to zero
 arguments" case and the "applied to at least one, but fewer than its
 arity" case?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9898#comment:6>
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