[GHC] #14838: missing "incomplete-patterns" warning for TH-generated functions

[GHC]

#14838: missing "incomplete-patterns" warning for TH-generated functions
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        Reporter:  gelisam           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  8.2.2
      Resolution:                    |             Keywords:
                                     |  PatternMatchWarnings
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Nothing in the commit message explains why we suppress pattern match
 checks for generated code.  Perhaps we shouldn't?

 I favour (1) until we see why it's a bad idea.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14838#comment:3>
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