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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
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  • #8961
Closed
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Issue created Apr 06, 2014 by Gergő Érdi@cactusContributor

Require PatternSynonyms language extension to *use* pattern synonyms

To keep in the spirit of #2905, especially in light of the immaturity of the pattern synonyms extensions, GHC should require the PatternSynonyms language extension to be turned on when encountering a pattern synonym occurance.

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Version 7.8.1-rc2
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (Type checker)
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