#11128: New `-fwarn-noncanonical-monad-instances` warning -------------------------------------+------------------------------------- Reporter: hvr | Owner: hvr Type: feature request | Status: patch Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1516 Wiki Page: | -------------------------------------+------------------------------------- Comment (by nomeata): Do you intentionally disallow `return x = pure x`, which some people might write? (No strong opinion here, having precisely one official way is probably desirable, but let’s at least document that it has been given thought.) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11128#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler