[GHC] #14164: GHC hangs on type family dependency

GHC ghc-devs at haskell.org
Mon Jun 18 08:31:16 UTC 2018


#14164: GHC hangs on type family dependency
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:
                                     |  InjectiveFamilies
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  indexed-
                                     |  types/should_compile/T14164
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => merge
 * testcase:   => indexed-types/should_compile/T14164


Comment:

 Well that was harder than I thought.  I've committed the change, but I'd
 welcome any review (eg Richard).

 It fixes an outright bug, so I suggest merging to 8.6

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14164#comment:6>
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