[GHC] #9634: "data X = 1": "Illegal literal in type (use DataKinds to enable): 1"

GHC ghc-devs at haskell.org
Fri Sep 26 11:40:45 UTC 2014


#9634: "data X = 1": "Illegal literal in type (use DataKinds to enable): 1"
-------------------------------------+-------------------------------------
              Reporter:  rwbarton    |            Owner:
                  Type:  bug         |           Status:  closed
              Priority:  low         |        Milestone:
             Component:  Compiler    |          Version:  7.9
  (Type checker)                     |         Keywords:
            Resolution:  fixed       |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
  typecheck/should_fail/T9634        |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => closed
 * testcase:   => typecheck/should_fail/T9634
 * resolution:   => fixed


Comment:

 Good point, thank you.  We now get
 {{{
 T9634.hs:3:10:
     Cannot parse data constructor in a data/newtype declaration: 1
 }}}
 whether or not `DataKinds` is on

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9634#comment:2>
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