#15562: `-XStrict -XNoStrict` is not neutral -------------------------------------+------------------------------------- Reporter: hvr | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: 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 hvr): Replying to [comment:4 goldfire]:
My vote would be simply not to make any guarantees of this sort. It's not hard for a tool to consult `DynFlags.impliedXFlags` and figure out what reorderings are OK.
While I agree now with that it's hopeless to give any guarantees; I disagree that consulting `DynFlags.impliedXFlags` is "not hard" for tools -- tools most often avoid to link against `lib:ghc` so they wouldn't have access to it; instead they tend to query e.g. `ghc --supported-languages` which unfortunately does not expose the relationships between those flags. It would be very useful for tooling if `ghc`'s CLI had some flag to dump an extended version of `--supported-languages` that's easy to parse -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15562#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler