Re: [GHC] #14169: ghci panics when using type applications on variables that aren't in scope

29 Aug 2017

      #14169: ghci panics when using type applications on variables that aren't in scope
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        Reporter:  tysonzero         |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13466            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * status:  new => closed
 * resolution:   => duplicate
 * related:   => #13466

Comment:

 Thanks for the bug report. This is a duplicate of #13466, which has been
 fixed in GHC 8.2.1:

 {{{
 GHCi, version 8.2.1: http://www.haskell.org/ghc/  :? for help
 Loaded GHCi configuration from /home/rgscott/.ghci
 λ> :set -XTypeApplications
 λ> foo @Int

 <interactive>:2:1: error: Variable not in scope: foo

 <interactive>:2:1: error:
     • Cannot apply expression of type ‘t1’
       to a visible type argument ‘Int’
     • In the expression: foo @Int
       In an equation for ‘it’: it = foo @Int
 }}}

-- 
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14169#comment:1
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The Glasgow Haskell Compiler