Re: [GHC] #13921: LANGUAGE pragma is accepted in module body

4 Jul 2017

      #13921: LANGUAGE pragma is accepted in module body
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
  (Parser)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by svenpanne):

 I would even go a step further: Syntactically, pragmas are just comments
 with a special content, so the example in the OP **must** be accepted from
 a language lawyer POV. It is equivalent (modulo column numbers) to:

 {{{#!haskell
 module Hi where

 h = 0
 }}}

 From a developer POV, a warning would be nice, though. :-)

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13921#comment:3
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