On 18/12/14 12:51, Dr. ERDI Gergo wrote: > On Thu, 18 Dec 2014, Carter Schonwald wrote: > >> Hey all,I was trying to define some pattern synonyms in ghci recently, >> and that doesnt >> seem to work. Is that something slated to be fix in 7.10 or something? > > I thought GHCi accepts things that would be valid in a 'do' section? So > e.g. > > x = () > > doesn't work in GHCi, but > > let x = () > > does. > > Pattern synonyms don't work for the exact same reason: they are not > valid inside a 'do' block.
That's not true. Since 7.6, IIRC, you can define data types and instances in ghci. See also https://ghc.haskell.org/trac/ghc/ticket/7253 Roman _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
