#11735: Optimize coercionKind -------------------------------------+------------------------------------- Reporter: goldfire | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj):
Instead, I would have mkNthCo require a role and make a new mkNthCoNoRole that computes it.
Yes, but then `mkNthCo` relies on the caller to guarantee the invariant. That's fine; Lint will check. That's all I meant `mkNthCoDirect` to do. But I'm not fussy about naming, so long as the comments are clear. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11735#comment:31 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler