[GHC] #12164: Type signatures in patterns not (yet) handled by Template Haskell

[GHC]

#12164: Type signatures in patterns not (yet) handled by Template Haskell
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        Reporter:  ezyang            |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2490
       Wiki Page:                    |
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Comment (by Matthew Pickering <matthewtpickering@…>):

 In [changeset:"b0121209f8fb47a7cb8fc32e10d8e2c06d4502c2/ghc"
 b0121209/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="b0121209f8fb47a7cb8fc32e10d8e2c06d4502c2"
 Handle types w/ type variables in signatures inside patterns (DsMeta)

 The comment indicated that scoping of type variables was a large problem
 but Simon fixed it in e21e13fb52b99b14770cc5857df57bbcc9c85102.

 Thus, we can implement repP for signatures very easily in the usual way
 now.

 Reviewers: goldfire, simonpj, austin, bgamari

 Reviewed By: simonpj

 Subscribers: mpickering, simonpj, thomie

 Differential Revision: https://phabricator.haskell.org/D2490

 GHC Trac Issues: #12164
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12164#comment:5>
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