#15617: Unboxed tuples/sum error message on `a = show 5` in expression evaluation and interactive modes -------------------------------------+------------------------------------- Reporter: ChaiTRex | Owner: | JulianLeviston Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.6.1-beta1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Poor/confusing | Unknown/Multiple error message | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by JulianLeviston): I'm leaving this here for myself as WIP notes for later. Execution path: 1. ghc/Main.hs main function 1. (mode, argv3, flagWarnings) <- parseModeFlags argv2 1. case mode of ... Right postStartupMode -> 1. case postStartupMode of -> 1. Right postLoadMode -> main' postLoadMode dflags argv3 flagWarnings 1. this hits the main' function after getting a postLoadMode of DoInteractive or DoEval 1. this is the meat, where we're pulling apart the flags then throwing them at ghciUI which calls interactiveUI defaultGhciSettings for both cases 1. This function comes from GHCi.UI -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15617#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler