[GHC] #10892: ApplicativeDo should use *> and <*

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Fri Oct 27 13:48:43 UTC 2017


#10892: ApplicativeDo should use *> and <*
-------------------------------------+-------------------------------------
        Reporter:  simonmar          |                Owner:  bollu
            Type:  task              |               Status:  new
        Priority:  high              |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:  ApplicativeDo
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:  12143
 Related Tickets:  #13309            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Simon Marlow <marlowsd@…>):

 In [changeset:"41f905596dc2560f29657753e4c69ce695161786/ghc" 41f9055/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="41f905596dc2560f29657753e4c69ce695161786"
 ApplicativeDo: handle BodyStmt (#12143)

 Summary:
 It's simple to treat BodyStmt just like a BindStmt with a wildcard
 pattern, which is enough to fix #12143 without going all the way to
 using `<*` and `*>` (#10892).

 Test Plan:
 * new test cases in `ado004.hs`
 * validate

 Reviewers: niteria, simonpj, bgamari, austin, erikd

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #12143

 Differential Revision: https://phabricator.haskell.org/D4128
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10892#comment:28>
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