[GHC] #13804: MonoLocalBinds/RankNTypes type inference regression in GHC 8.2

GHC ghc-devs at haskell.org
Fri Jun 9 03:01:35 UTC 2017


#13804: MonoLocalBinds/RankNTypes type inference regression in GHC 8.2
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:
       Component:  Compiler (Type    |              Version:  8.2.1-rc2
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11698            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * cc: facundo.dominguez (added)
 * related:   => #11698


Comment:

 This behavior was introduced in commit
 c9e8f801170b213b85735ed403f24b2842aedf1b (Set tct_closed to TopLevel for
 closed bindings). Facundo, is this expected?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13804#comment:2>
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