#10892: ApplicativeDo should use *> and <* -------------------------------------+------------------------------------- Reporter: simonmar | Owner: bollu Type: task | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 7.11 Resolution: | Keywords: ApplicativeDo Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: 12143 Related Tickets: #13309 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): I think they're both equivalent. Can you write down the desugaring rule? It seems to me we can use `*>` for *initial* ApplicativeArgNils in the group, and `<*` for *trailing* ApplicativeArgNils in the group. Anything in the middle will just need to behave like a wildcard pattern. Does that seem reasonable? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10892#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler