[GHC] #14163: Stack Overflow with ApplicativeDo

GHC ghc-devs at haskell.org
Tue Aug 29 23:20:19 UTC 2017


#14163: Stack Overflow with ApplicativeDo
-------------------------------------+-------------------------------------
        Reporter:  lippling          |                Owner:  simonmar
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.2.2
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:  ApplicativeDo
Operating System:  MacOS X           |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3900
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by dfeuer):

 * differential:   => Phab:D3900


Comment:

 I have a workaround: if the splitter doesn't actually split, just pull off
 the first statement and the rest and form a `StmtTreeBind`. But I don't
 yet understand enough to see why we have this problem with strict patterns
 and not with other dependencies.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14163#comment:8>
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