#10009: type inference regression when faking injective type families -------------------------------------+------------------------------------- Reporter: aavogt | Owner: Type: bug | Status: new Priority: high | Milestone: 7.10.2 Component: Compiler (Type | Version: 7.10.1-rc1 checker) | Keywords: Resolution: | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: GHC rejects | Test Case: valid program | Blocking: Blocked By: | Differential Revisions: Related Tickets: #10226 | -------------------------------------+------------------------------------- Comment (by rwbarton): Replying to [comment:29 jeltsch]:
Is this code accepted by GHC HEAD?
Yes, though it also gives a warning about a redundant constraint `G (F a) ~ a`... -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10009#comment:31 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler