[GHC] #12030: GHCi Proposal: Display (Data.Kind.)Type instead of *

GHC ghc-devs at haskell.org
Tue Jul 31 13:29:35 UTC 2018


#12030: GHCi Proposal: Display (Data.Kind.)Type instead of *
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  johnleo
            Type:  feature request   |               Status:  closed
        Priority:  normal            |            Milestone:  8.6.1
       Component:  GHCi              |              Version:  8.1
      Resolution:  fixed             |             Keywords:  TypeInType
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 RyanGlScott):

 * status:  new => closed
 * resolution:   => fixed
 * milestone:   => 8.6.1


Comment:

 My understanding is that the `-XNoStarIsType` extension gives you exactly
 what you seek here, since that displays `*` as `Type` in GHCi:

 {{{
 GHCi, version 8.6.0.20180714: http://www.haskell.org/ghc/  :? for help
 Loaded GHCi configuration from /home/rgscott/.ghci
 λ> :kind Int
 Int :: *
 λ> :set -XNoStarIsType
 λ> :kind Int
 Int :: Type
 }}}

 As such, I'm opting to close this.

 (There's still an [https://github.com/ghc-proposals/ghc-proposals/pull/143
 ongoing discussion] about whether `-XNoStarIsType` should be the default,
 but that's a separate matter.)

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12030#comment:4>
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