Hi Patrik On Thu, May 16, 2024 at 10:31 PM Patrik Václavek <patr...@email.cz> wrote: > > Introduce a new type guard syntax for classes: > > ```php > (Foo) $variable; > ``` > > This syntax will internally perform the following operations: > > 1. Check if `$variable` is an instance of `Foo`. > 2. If the check fails, throw a `TypeError` with a message indicating the > expected and actual types.
Note that this feature is covered under the pattern matching RFC with the "Throwing alternative" extension. https://wiki.php.net/rfc/pattern-matching#throwing_alternative In addition to just class types, it would support all other patterns, including scalar types, union types, array shapes, etc. Ilija
