#14541: Stg lint failure while building ghc-stage2: compiler/stage2/build/Hoopl/Block.o -------------------------------------+------------------------------------- Reporter: duog | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.3 Resolution: | Keywords: stg-lint 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 simonpj): This is another example of how, after the unarisation pass, we have discarded void argument. (A void argument is one of zero width.) The type of `JustO` is {{{ JustO :: forall ex t. (ex ~# O) => t -> MaybeO ex t }}} So it does take two value arguments, one of zero width. After unarisation these void arguments are gone; so the Lint check will have to account for that. I suppose there could be a flag passed in to STG-Lint to tell it whether or not those void args are there. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14541#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler