Re: Re: [RFC] "arrayable" pseudo type hint
| From: | Aimeos | Norbert Sendetzky | Date: | Tue, 04 Feb 2020 18:40:01 +0000 |
| Subject: | Re: Re: [RFC] "arrayable" pseudo type hint | ||
| References: | 1 2 3 4 5 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-108400@lists.php.net to get a copy of this message | ||
Am 04.02.20 um 19:17 schrieb Rowan Tommins:
> I think Larry's point was that the flexibility of PHP's array type makes it
> really hard to pin down whether a given object is "array-like" or not, and
> which attributes a particular function actually cares about.
What else besides array access, counting and traversing is possible that
may differ from classes that implement those interfaces?
> A general "intersection type" system might be more useful, because then you
> could require the parts you specifically needed, such as
> "traversable&ArrayAccess" or "traversable&countable".
I think that's too complicated and we should make it as easy as possible
for PHP developers.
Also, there's already an RFC for intersection types but it was never
adopted: https://wiki.php.net/rfc/intersection_types