[GHC] #10056: Inconsistent precedence of ~

[GHC]

#10056: Inconsistent precedence of ~
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        Reporter:  crockeea          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
  (Parser)                           |
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10059            |  Differential Revisions:
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Comment (by dfeuer):

 Replying to [comment:16 RyanGlScott]:
 > Replying to [comment:14 dfeuer]:
 > > I would think we'd want it to have even lower precedence than `->` to
 support easy use in contexts.
 >
 > Is that even possible at the moment? I thought that `(->)` had the
 lowest possible precedence:
 >
 > {{{#!hs
 > $ inplace/bin/ghc-stage2 --interactive
 > GHCi, version 7.11.20150727: http://www.haskell.org/ghc/  :? for help
 > λ> :i (->)
 > data (->) a b   -- Defined in ‘GHC.Prim’
 > infixr 0 `(->)`
 > }}}

 Ze who writes the parser makes the rules.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10056#comment:17>
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