[GHC] #10572: Type signatures are not implicitly quantified over TH type variables

GHC ghc-devs at haskell.org
Fri May 4 15:29:25 UTC 2018


#10572: Type signatures are not implicitly quantified over TH type variables
-------------------------------------+-------------------------------------
        Reporter:  spinda            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  7.10.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by sighingnow):

 * status:  patch => new
 * testcase:  tests/th/T10572a, tests/th/T10572a =>
 * differential:  Phab:D4641 =>


Comment:

 I have realized that my previous patch couldn't remedy the situation. I
 have mark my previous patch as abandoned.

 For

 > f :: $(g 'a) -> a

 This patch doesn't work. Sorry for the noise.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10572#comment:7>
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