#7169: Warning for incomplete record field label used as function -------------------------------------+------------------------------------- Reporter: goldfire | Owner: nakaji_dayo Type: feature request | Status: closed Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 7.7 Resolution: fixed | Keywords: Warnings, | newcomer Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4083 Wiki Page: | -------------------------------------+------------------------------------- Comment (by AntC): Replying to [comment:27 Ben Gamari <ben@…>]:

{{{ Warning on declaring a partial record selector. However, disable warn with field names that start with underscore.

}}}

Eek. I may be too late. Don't the lenses people use underscore prefix on record labels? So that TH can detect that and produce a lens name with the `_` stripped off? Then they're going to miss out on this warning of partiality. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7169#comment:29> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler