#7994: Make foldl into a good consumer -------------------------------------+------------------------------------ Reporter: simonpj | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by Joachim Breitner <mail@…>): In [changeset:"c271e32eac65ee95ba1aacc72ed1b24b58ef17ad/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="c271e32eac65ee95ba1aacc72ed1b24b58ef17ad" Add GHC.Prim.oneShot to allow the programer to explictitly set the oneShot flag. This helps with #7994 and will be used in left folds. Also see https://ghc.haskell.org/trac/ghc/wiki/OneShot This commit touches libraries/base/GHC/Event/Manager.hs (which used to have a local definition of the name oneShot) to avoid a shadowing error. Differential Revision: https://phabricator.haskell.org/D392 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7994#comment:22> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler