#15192: Refactor of Coercion -------------------------------------+------------------------------------- Reporter: ningning | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 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:D4747 Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): As a follow-on to comment:8: even with homogeneous equality, coercions will still be heterogeneous, and thus the need for a coherence coercion (of some form) will remain. The type of `~#` becomes homogeneous, but that affects only what coercions we can quantify over, not what ones we can form. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15192#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler