My Kingdom For ...

[Derek Parnell]

On Thu, 21 Feb 2008 23:55:29 +0100, Ary Borenszweig wrote:

>> I guess I was. I suppose I was saying, let's make "== null" illegal
>> for /all/ types. "== null" just isn't needed, because in /all/ cases,
>> "is null" works.
> 
> That's even better than an error. :-)
> 
> But programmers are used to use "==" for comparisons with null... 
> Another alternative would be for the compiler to rewrite "== null" as 
> "is null", always.

For what its worth, I'm also in the camp that feels that "== null" and "is
null" should be treated semantically the same by the language. I realize
that his would add a bit of complexity in a compiler that automatically
translates "==" into an opEquals() call.

-- 
Derek
(skype: derek.j.parnell)
Melbourne, Australia
22/02/2008 9:58:03 AM