#15034: Desugaring `mdo` moves a `let` where it shouldn't be -------------------------------------+------------------------------------- Reporter: parsonsmatt | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.2.2 Resolution: | Keywords: RecursiveDo 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 parsonsmatt):
That is indeed odd. Are you sure your example is right in comment:2? You don't even use theUsual before its definition in the "However, when I move..." version.
Yes. [https://github.com/parsonsmatt/mesa- verde/blob/81d2fb68ec87ff3f97eed1463f86f5f7e0b77240/src/MesaVerde/Internal.hs This is a repository] containing all of the code and definitions. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15034#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler