#8581: Add support for explicitly-bidirectional pattern synonyms -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: feature | Status: new request | Milestone: 7.10.1 Priority: normal | Version: Component: Compiler | Keywords: pattern synonyms Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: 5144 Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by mpickering): It does feel unnecessary to insist on the extra constraint. That being said, it does match up better with the original semantics of the constructor. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8581#comment:18 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler