[GHC] #9672: Error message too long (full case statement printed)

[GHC]

#9672: Error message too long (full case statement printed)
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              Reporter:              |            Owner:
  andreas.abel                       |           Status:  new
                  Type:  bug         |        Milestone:
              Priority:  normal      |          Version:  7.8.3
             Component:  Compiler    |         Keywords:
  (Type checker)                     |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Easy (less than 1
      Operating System:              |  hour)
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Other       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by andreas.abel):

 A simple-minded fix is to just surpress the printing of the error context
 if it is too long.  Let's say, if it is more than 7 lines (or put some
 other magic number here), it does not print it, as it will probably not be
 helpful to the user.

 I hardly ever read the surrounding context of an error, I just look at the
 error position and jump to that line in my editor. The problem with long
 error contexts is that errors scroll way up in my terminal and I have to
 go a long way back to read the error position.  Also, it is not easy to
 get an overview over all the errors one got.

 If there was a flag --short-error-messages, I had it on always, for that
 very reason.

 Andreas

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9672#comment:2>
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