> Le 5 août 2022 à 19:08, Larry Garfield <la...@garfieldtech.com> a écrit :
>
> Ilija Tovilo and I are happy to present the first new RFC for PHP 8.3:
> Asymmetric Visibility.
>
> https://wiki.php.net/rfc/asymmetric-visibility
>
> Details are in the RFC, but it's largely a copy of Swift's support for the
> same.
>
> --
> Larry Garfield
> la...@garfieldtech.com
>
Hi,
I like the RFC, and in particular allowing property visibility to remain
orthogonal to property accessors.
There are few missing details in the RFC (which is otherwise good):
1. Are static properties supported?
2. What about properties that are overridden/redeclared in a subclass? Given
that extending the visibility is generally allowed:
```php
class A {
protected int $x;
}
class B extends A {
public int $x; // ok
}
```
I expect that the following should be allowed as well:
```php
class A {
public protected(set) int $x;
}
class B extends A {
public int $x; // ok
}
```
On the other hand, I expect that the two following cases should *not* be
allowed, because it would break encapsulation of class A:
```php
class A {
public private(set) int $x;
}
class B extends A {
public int $x; // error: cannot change a private property to public (or
protected)
}
```
and:
```php
class A {
public private(set) int $x;
}
class B extends A {
public private(set) int $x; // error: cannot make a private property in
A as private in B
}
```
—Claude
--
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