#7989: "No constructor has all these fields" message can be improved
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Reporter: akio | Owner:
Type: feature request | Status: patch
Priority: normal | Milestone:
Component: Compiler | Version: 7.7
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Other
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by monoidal):
Do you handle this situation?
{{{
data T = A { x,y :: Int} | B { y,z :: Int } | C { z,x :: Int}
f a = a { x=0, y=0, z=0 }
}}}
Error message here cannot mention only two fields.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7989#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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