David Roundy wrote:
On Mon, Jan 02, 2006 at 04:23:32PM -0800, Ashley Yakeley wrote:

One open question (in my mind) would be whether we'd allow

data Foo = FooInt { foo :: Int } | FooChar { foo :: Char }

In the "new" system, there's no reason this need be illegal.

How would this behave?

 data Foo a b = FooA {foo :: a} | FooB {foo :: b}


I'm not sure I understand the problem.  Why would there be any difficulty
with this?

What type would "foo" have? And what would that imply for the type of "foo" in your Int/Char example?

--
Ashley Yakeley

_______________________________________________
Haskell mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/haskell

Reply via email to