[LiveComponent] Fix default option extraction ignores Translatable #2621

[stehled]

Q	A
Bug fix?	yes
New feature?	no
Issues	Fix #2621
License	MIT

Select placeholder in LiveForm will now accept string and TranslatableInterface from symfony/translation-contracts. Therefore mimicking of default browser behaviour will not happen for TranslatableInterface.

[smnandre]

Your composer.json change is not needed here, so let's avoid adding a new dependency for this single check :)

<?php

use Not\Installed\TranslatableInterface;

if ('aa' instanceof TranslatableInterface) {
    echo 'yep';
} else {
    echo 'nope';
}

--> "nope" and no error/warning (see https://3v4l.org/4nHHd )

(on contrary to something like this where an error would occur)

<?php

use Not\Installed\TranslatableInterface;

// This would trigger a Fatal Error Interface "Not\Installed\TranslatableInterface" not found
$foo = new class implements TranslatableInterface {};

[stehled]

I've committed the suggestion, thank you for this comment, I've learned something new :)

[smnandre]

Thank you @stehled !

[Kocal]

Thank you @stehled.