#9671: Allow expressions in patterns -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: Resolution: | Keywords: | PatternSynonyms Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): Replying to [comment:3 cactus]:
The implementation is a straightforward desugaring into pattern synonyms and view patterns
That's how I started the work on pattern synonyms in the first place... spoiler alert: it never is :)
+1 to SPJ on distinguishing ''pat'' and ''expr'' arguments. In fact, I
;) think they should be distinguished even when introducing them as formal arguments. Can you elaborate on last part -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9671#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler