Static methods

[iluuu1994]

The RFC says:

Specifically, the following features of objects are not allowed on enumerations: Static methods

Any specific reason this shouldn't be allowed? Also, are we talking about enums or the enum cases?

Example where this would be useful:

enum Foo {
    ...

    public static function fromRepresentation1($value) {
        return match ($value) { ... };
    }

    public static function fromRepresentation2($value) {
        return match ($value) { ... };
    }
}

$foo = Foo::fromRepresentation1(1);
$foo = Foo::fromRepresentation2('foo');

[Crell]

I had intended for both, because I couldn't think of a use case for them. But that's a good one. Should we allow static methods on both, or just on the Enum?

[iluuu1994]

Should we allow static methods on both, or just on the Enum?

I'd say just on enums, there's no obvious way to invoke them on enum cases (other than through the instance in which case they could just be an instance method in the first place).

[Crell]

Added that, and an example of using a "named constructor" for an enum to demonstrate it.

[iluuu1994]

Thank you :)