On Fri, Apr 29, 2011 at 02:38:31AM +1000, Ben Schmidt wrote:

> I also see the value of such type checking for such a use case, obviously.
> 
> I guess there's a reason for it after all.
> 
> I'd still like to see something neat to handle more than just named 
> classes, though, e.g. scalars, and things like "false on error" for return 
> values.

That is why I suggested, in addition to the above, a syntax like:

    function (Foo | NULL) foo($something) {

to be able to specify where a function can return more than one type.
The 'extra' types/values are nearly always either NULL or FALSE.

I agree that being able to specify as types: array, scalar, int, string, ...
would be useful for a compiler but prob have little value for Zend - other than
documentation/reflection.

-- 
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT 
Lecturer.
+44 (0) 787 668 0256  http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information: 
http://www.phcomp.co.uk/contact.php
#include <std_disclaimer.h>

-- 
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php

Reply via email to