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Date: Mon, 16 Mar 2020 20:26:57 -0500
Message-ID: <CAJmjfvWtFr0vb+ZAku0CJW5HTtwiyDdza1NtcSkcx8x3Yo6RGQ@mail.gmail.com>
To: Marco Pivetta <ocramius@gmail.com>
Cc: php internals <internals@lists.php.net>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] [RFC] [DISCUSSION] Compact Object Property Assignment
From: jakob@givoni.dk (Jakob Givoni)

On Mon, Mar 16, 2020 at 9:31 AM Marco Pivetta <ocramius@gmail.com> wrote:
> What happens if you have an expression that throws?
>
> class Foo
> {
>     public $a;
>     public $b;
>     public $c;
> }
>
> $instance = new Foo();
>
> function iThrow() {
>     throw new \Exception();
> }
>
> try {
>     $foo ->[
>         a = 'a',
>         b = iThrow(),
>         c = 'c',
>     ];
> } catch (\Throwable $e) {
>     var_export($foo); // ???
> }

Hi Marco!
Trivial question - let's see what happens:

Just replace COPA with the old syntax and run it:

try {
    $foo->a = 'a';
    $foo->b = iThrow();
    $foo->x = 'c';
} catch (\Throwable $e) {
    var_export($foo); // ???
}

Result:
Foo::__set_state(array(
   'a' => 'a',
   'b' => NULL,
   'c' => NULL,
))

So the first property will be set, the rest will be left as they were.

Best,
Jakob