[GHC] #10807: PatternGuards and MultiWayIf layout rules

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Wed Aug 16 23:02:36 UTC 2017


#10807: PatternGuards and MultiWayIf layout rules
-------------------------------------+-------------------------------------
        Reporter:  htebalaka         |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  lowest            |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  7.10.2
  (Parser)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Documentation     |  Unknown/Multiple
  bug                                |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #7783             |  Differential Rev(s):  Phab:D2524
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"b0ed07fafbe96c3eee6c7f41ef937973bedbf1dc/ghc"
 b0ed07fa/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="b0ed07fafbe96c3eee6c7f41ef937973bedbf1dc"
 Allow TcDerivInfer to compile with GHC 8.0.1

 As of ed7a830de6a2ea74dd6bb81f8ec55b9fe0b52f28 this module uses
 MultiWayIf, the parsing behavior of which changed in 8.0.2 due
 to #10807. Reformat the code so that it compiles under both 8.0.1 and
 8.0.2/8.2.1.

 Test Plan: Validate bootstrapping with 8.0.1

 Reviewers: austin

 Subscribers: rwbarton, thomie, RyanGlScott

 GHC Trac Issues: #14130

 Differential Revision: https://phabricator.haskell.org/D3863
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10807#comment:11>
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