#11339: Possible type-checker regression in GHC 8.0 -------------------------------------+------------------------------------- Reporter: hvr | Owner: simonpj Type: bug | Status: closed Priority: highest | Milestone: 8.0.2 Component: Compiler (Type | Version: 8.0.1-rc1 checker) | Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T11339, | T11339b, T11339c, T11339d; partial- | sigs/should_compile/T11339a Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): Agreed about comment:4 item (2): it does hit the MR, when reading the Report closely. I hadn't known that the MR struck annotated variables if they are bound in a pattern binding. Otherwise, hooray! This does seem all fixed now -- including rejecting (once again) the original program in the description. (That should be rejected as it correctly runs afoul of the MR.) Thanks! :) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11339#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler