Hello Máté, internals,
I have been waiting for this to happen :)
Some feedback
> However, in some cases it would be useful to reference property names as
> expressions, e.g. when one needs to use “clone with” in a foreach loop where
> the index is the property name and the loop variable is the value to be
> assigned. This is also possible using a slightly more verbose syntax:
What about argument unpacking?
I don't know if we can combine this with ":" syntax or only with "=>".
clone $object with {
...$arr,
...['a' => 'A', $b => 'B'],
...(function () {yield 'x' => 'X';})(),
c: 'C', // or
d => 'D', // No mixing of ':' and '=>', we have to choose one.
}
If we want to go crazy in the future:
(This would require another language feature of inline code blocks
with return value or behaving as generator)
clone $object with {
...{
yield 'a' => 'A';
yield 'b' => 'B';
},
...{
return ['c' => 'C'],
}
}
-- Andreas
On Mon, 17 Apr 2023 at 08:32, Máté Kocsis <[email protected]> wrote:
>
> Hi Everyone,
>
> Quite some time after mentioning the "clone with" construct the first time
> (at the end of the
> https://wiki.php.net/rfc/write_once_properties#run-time_behaviour section),
> finally I managed to create a working implementation for this feature which
> would make it possible to properly modify readonly properties
> while simplifying how we write "wither" methods:
> https://wiki.php.net/rfc/clone_with
>
> Regards,
> Máté Kocsis
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