[GHC] #15697: Typed holes inferring a more polymorphic type

GHC ghc-devs at haskell.org
Tue Oct 2 16:07:19 UTC 2018


#15697: Typed holes inferring a more polymorphic type
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        Reporter:  sreenidhi         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.6.1
      Resolution:                    |             Keywords:  TypedHoles
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Tritlo):

 Thanks for breaking it down, Ryan. I think this would be covered by what I
 call "more specific fits", like I touched on (i.e. suggesting `pi ::
 Floating a => a` for `_ :: Fractional a => a`). In those fits, we could
 also include fits that would be suggested if `MonoLocalBinds` were
 enabled.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15697#comment:7>
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