[GHC] #14286: Different behavior between type application and type annotation.

GHC ghc-devs at haskell.org
Wed Sep 27 11:28:30 UTC 2017


#14286: Different behavior between type application and type annotation.
-------------------------------------+-------------------------------------
        Reporter:  vagarenko         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      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:                    |
-------------------------------------+-------------------------------------

Comment (by vagarenko):

 Silly me.

 Of course `foo () (Just "bar") [()] :: IO ()` means type of `foo` applied
 to 3 arguments is `IO ()`
 while `foo @(IO ())` means `foo` has no arguments.

 Sorry for the noise.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14286#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list