On Tue, Sep 23, 2014 at 10:03:11AM +0200, Johan Tibell wrote: > I must say that requiring a language pragma makes the feature quite a bit more > heavy weight. We're not changing the meaning of any existing programs, just > allowing some new ones.
Without using a new language pragma you will get more or less telling error messages if you're trying to compile code using this new syntax with older ghcs. Using a new language pragma will give you quite telling error messages. Greetings, Daniel _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
