[GHC] #14323: Occurs check regressions in GHC 8.2.1 (and HEAD)

GHC ghc-devs at haskell.org
Wed Oct 18 11:43:33 UTC 2017


#14323: Occurs check regressions in GHC 8.2.1 (and HEAD)
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler (Type    |              Version:  8.2.1
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14333            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * status:  new => closed
 * resolution:   => fixed
 * related:   => #14333
 * milestone:   => 8.4.1


Comment:

 Thanks to commit 5a66d574890ed09859ca912c9e0969dba72f4a23 (`Better solving
 for representational equalities`), both `hm2` and `hm3` from the original
 description now typecheck. See `typecheck/should_compile/T14333` from the
 testsuite.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14323#comment:10>
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