#8581: Add support for explicitly-bidirectional pattern synonyms -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: Resolution: | Keywords: Operating System: Unknown/Multiple | PatternSynonyms Type of failure: None/Unknown | Architecture: Blocked By: 5144 | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by rwbarton): dmcclean, I was able to compile your program with ghc-7.10.0.20150123, though I had to add the RankNTypes language extension as well; can you double check? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8581#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler