#16232: Add setField to HasField -------------------------------------+------------------------------------- Reporter: adamgundry | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: 8.10.1 Component: Compiler (Type | Version: 8.7 checker) | 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: | -------------------------------------+------------------------------------- Comment (by mpickering): It seems quite straightforward to generate the necessary core. I think you mean that you would generate: {{{ \ r x -> case r of MkT _ bar -> MkT x bar }}} You don't need to mention any wired-in Ids or anything so it seems simple? It also doesn't seem like a lot of work to me in the grand scheme of things so I wouldn't mind doing it every time one of these constraints is solved. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16232#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler