[GHC] #10209: parser: opt_kind_sig has incorrect SrcSpan

28 Mar 2015

      #10209: parser: opt_kind_sig has incorrect SrcSpan
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              Reporter:  alanz       |             Owner:  alanz
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.1
  (Parser)                           |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  Other
  ApiAnnotations                     |        Blocked By:
          Architecture:              |   Related Tickets:
  Unknown/Multiple                   |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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 The production for opt_kind_sig is

 {{{#!hs
 opt_kind_sig :: { Located (Maybe (LHsKind RdrName)) }
         :                             { noLoc Nothing }
         | '::' kind                   {% ajl (sLL $1 $> (Just $2))
 AnnDcolon (gl $1) }

 }}}

 The outer Location is used only to get the full span for the enclosing
 declration, and is then stripped.  The inner LHsKind then has a SrcSpan
 that does not include the '::'

 Extend the SrcSpan on $2 to include $1

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10209
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