#14996: Typed holes are very slow -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- If you type at the GHCi prompt {{{ ghci> 3 _ 4 }}} (which I did for #14969), you get a multi-second pause before the error message comes out. I think this is because the error-message generator is looking through the entire type environment. But it's really too slow. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14996 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler