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  • Glasgow Haskell Compiler
  • GHCGHC
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  • #9518
Closed
Open
Created Aug 28, 2014 by dmcclean@trac-dmcclean

Improve error message for unacceptable role annotations

It would be nice if this message:

Role mismatch on variable a:
  Annotation says representational but role nominal is required
while checking a role annotation for `Point'

Could be extended to say where the requirement arises.

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Version 7.8.3
Type FeatureRequest
TypeOfFailure OtherFailure
Priority low
Resolution Unresolved
Component Compiler
Test case
Differential revisions
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