#12975: Suggested type signature for a pattern synonym causes program to fail to type check -------------------------------------+------------------------------------- Reporter: ocharles | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Keywords: Resolution: | 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 mpickering): The required one. `req => t` is the same as `req => () => t`. This is different from the first implementation, we changed it last release. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12975#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler