#15559: fromJust has no HasCallStack -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: 8.6.1 Component: Core Libraries | Version: 8.4.3 Resolution: | Keywords: newcomer 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 goldfire): I really like GHC's internal `HasDebugCallStack`, which disappears (that is, becomes `()`) when `DEBUG` is not defined via CPP and becomes `HasCallStack` when `DEBUG` is defined. As far as I know, there's no standard way to mark a build meant for debugging, but perhaps there should be. Then, we could do the same for all applications instead of just GHC. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15559#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler