[GHC] #10299: Inconsistent parsing of lifted list constructor

GHC ghc-devs at haskell.org
Wed May 6 13:09:25 UTC 2015


#10299: Inconsistent parsing of lifted list constructor
-------------------------------------+-------------------------------------
        Reporter:  mpickering        |                   Owner:
            Type:  bug               |                  Status:  patch
        Priority:  normal            |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:  Phab:D840
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"caeae1a33e28745b51d952b034e253d3e51e0605/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="caeae1a33e28745b51d952b034e253d3e51e0605"
 Correct parsing of lifted empty list constructor

 See #10299

 Previously `'[]` was parsed to a `HsTyVar` rather than a
 `HsExplicitListTy`. This patch fixes the
 shift-reduce conflict which caused this problem.

 Reviewed By: alanz, austin

 Differential Revision: https://phabricator.haskell.org/D840
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10299#comment:4>
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