#14070: Allow ‘unsafe’ deriving strategy, deriving code with ‘unsafeCoerce’ -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: | QuantifiedContexts, deriving Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Replying to [comment:16 Iceland_jack]:
Should the ticket be closed or kept open until we have `QuantifiedContexts`?
That's up to you. At some point (be it now or after `QuantifiedContexts` is a thing) I'd like to have a ticket for modifying `GeneralizedNewtypeDeriving` to infer quantified `Coercible` constraints. I'd be fine with either making this the ticket for that feature, or for closing this in favor of a different one. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14070#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler