John Meacham wrote:
On Thu, Oct 19, 2006 at 12:55:48PM +0100, Simon Marlow wrote:
As for extending lambda to allow multiple guards and/or multiple pattern matches, I don't think we need that either. Lambda is a quiet syntax and will be lost at the beginning of a sequence of pattern matches/guards; it's best used for simple lambda expressions, complicated pattern matches should be done using function equations.
I think I would like to allow a (single) guard on a lambda. for assertion checking, I am a sucker for assertion checking and the more lightweight the better when it comes to that sort of thing.
I like idea of a single guard on a lambda as well. I think it simplifies the language (slightly) by eliminating a special case where patterns are allowed but guards are not. - Ravi