Re: [GHC] #14479: Partial type signatures and generalisation

21 Dec 2017

      #14479: Partial type signatures and generalisation
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        Reporter:  simonpj           |                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:                    |
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Comment (by Simon Peyton Jones ):

 In [changeset:"72938f5890dac81afad52bf58175c1e29ffbc6dd/ghc"
 72938f58/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="72938f5890dac81afad52bf58175c1e29ffbc6dd"
 Check for bogus quantified tyvars in partial type sigs

 This fixes Trac #14479.  Not difficult.

 See Note [Quantification and partial signatures] Wrinkle 4,
 in TcSimplify.
 }}}

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14479#comment:1
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