#15248: Coercions from plugins cannot be stopped from floating out -------------------------------------+------------------------------------- Reporter: goldfire | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by adamgundry): * cc: adamgundry (added) Comment: In this case, in principle, shouldn't the evidence produced for the plugin directly depend on the evidence for the assumptions? That is, rather than "proving" `(a a True) }}} by `UnivCo` and then instantiate it with your evidence for `(a http://ghc.haskell.org/trac/ghc/ticket/15248#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler