On Tue, Apr 2, 2024 at 8:05 PM Ilija Tovilo <[email protected]> wrote:
> Equality for data objects is based on data, rather than the object
> handle.
I believe equality should always consider the type of the object.
```php
new Problem(size:'big') === new Universe(size:'big')
&& new Problem(size:'big') === new Shoe(size:'big');
```
If the above can ever be true then I'm not sure how big is the problem
(but probably very big).
Also see the examples of non-comparable ids - `new CompanyId(1)`
should not be equal to `new PersonId(1)`
And I'd find it very confusing if the following crashed
```php
function f(Universe $_u): void {}
$universe = new Universe(size:'big');
$shoe = new Shoe(size:'big);
if ($shoe === $universe) {
f($shoe); // shoe is *identical* to the universe, so it should be
accepted wherever the universe is
}
```
--
Best regards,
Bruce Weirdan mailto:[email protected]
