#14998: Sort out the strictness mess for exceptions -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.3 Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Exceptions 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 sgraf): As expressed in Phab:D4574#126789 I have doubts that we should really merge the diff for item 2. According to `#exceptions_and_strictness#` in GHC.IO `catchException` and `catchAny` have that bang on purpose, as a helper function when `catch#` moved to a lazy signature in #11555. ticket:11222#comment:6 is very relevant. Such a `raiseIO#` is exactly what `catchException` and `catchAny` would need. Somewhere above, I discovered that `GHC.IO.Handle.Internals.want*Handle` aren't strict in their `act`ions. I'm currently evaluating any performance benefits by adding bangs in appropriate positions. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14998#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler