#10998: Parser should suggest -XMagicHash -------------------------------------+------------------------------------- Reporter: osa1 | Owner: Type: bug | Status: new Priority: low | Milestone: Component: Compiler | Version: 7.10.2 (Parser) | 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: | -------------------------------------+------------------------------------- Comment (by rwbarton): Probably rather more common is the case `unsafeCoerce# foo`, and now this is not a parse error but rather an out-of-scope variable error (for both `unsafeCoerce` and `#`). Would be nice to catch this case too, perhaps by checking, when raising an out-of-scope error for `#`, whether it immediately follows a letter-type identifier? Also be sure not to suggest `-XMagicHash` if it is on already (e.g. `:t foo #`). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10998#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler