#14097: -ddump-json doesn't interact as expected with -ddump-to-file -------------------------------------+------------------------------------- Reporter: mpickering | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Keywords: JSON | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Usually with dump flags, if you set `ddump-to-file` then the dumped file will be outputted in the current directory if `-dumpdir` or `-ddump-file- prefix` is not set. This doesn't work with `-ddump-json`, if you do not specify `-ddump-file-prefix` then the output is always on stdout. Clearly stated, here are the two problems which I think have the same solution. 1. `-ddump-to-file -ddump-json` should output a file in the currect directory. 2. `-ddump-to-file -ddump-json` does not respect `-dumpdir` It seems that a stale set of DynFlags is used to direct the output of `-ddump-json`. The relevant function is `DynFlags.jsonLogFinaliser`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14097 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler