#15857: Need for better warnings arising from StarIsType extension -------------------------------------+------------------------------------- Reporter: jrp | Owner: (none) Type: feature request | Status: new Priority: low | Milestone: Component: Compiler | Version: 8.6.1 Resolution: | Keywords: StarIsType | NoStarIsType Operating System: Unknown/Multiple | Architecture: Type of failure: Poor/confusing | Unknown/Multiple error message | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Description changed by jrp: Old description:

If I redefine `type (*) = (,)` I am given not given a warning that it doesn't do what I expect, when building with cabal new-repl or cabal new- build, because the `StarIsType` extension is now enabled by default. Instead or a warning, I get (correct but confusing) error messages.

New description: If I redefine `type (*) = (,)` I am given not given a warning that it doesn't do what I expect, when building with cabal new-repl or cabal new- build, because the `StarIsType` extension is now enabled by default. Instead of a warning, I get (correct but confusing) error messages. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15857#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler