#11671: Allow labels starting with uppercase with OverloadedLabels -------------------------------------+------------------------------------- Reporter: inaki | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1-rc1 (Parser) | Resolution: | Keywords: ORF 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) * keywords: => ORF * component: Compiler => Compiler (Parser) Comment: This is simply because overloaded labels are lexed similarly to variables after the initial `#`. I don't think there is a fundamental reason we couldn't permit uppercase letters here, it would just require a bit of lexer hacking. That said, the original motivation for overloaded labels came from record fields, where the initial letter must be lowercase. So I'm two minds as to whether this is worthwhile or not. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11671#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler