Re: What's new in 8.2: DNF types
| From: | Robert Landers | Date: | Thu, 08 Dec 2022 14:40:03 +0000 |
| Subject: | Re: What's new in 8.2: DNF types | ||
| References: | 1 2 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-119100@lists.php.net to get a copy of this message | ||
On Thu, Dec 8, 2022 at 1:39 PM Thomas Gutbier
<thomas.gutbier@anthrotec.de> wrote:
>
> I think in this example the check for null can be removed.
> The feature is so much more useful than presented here.
>
> (https://www.php.net/releases/8.2/en.php#dnf_types)
>
> class Foo {
> public function bar((A&B)|null $entity) {
> - if ($entity === null) {
> - return null;
> - }
>
> return $entity;
> }
> }
>
> Best regards
> Thomas Gutbier
>
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>
I'd also like to point out that this doesn't cause a fatal error, at
least in the latest RC (I haven't tried the official release yet).
trait Foo
{
public const CONSTANT = 1;
public function bar(): int
{
return self::CONSTANT; // Fatal error
}
}
class Bar
{
use Foo;
}
var_dump(Bar::CONSTANT); // 1
var_dump((new Bar)->bar()); // 1