[12.x] Command typed arguments and options via service container contextual attribute dependency injection

[shaedrich]

like, for example, with \Illuminate\Support\Facades\Config (#50140) and \Illuminate\Support\Arr (#55567)

Enhancements

• return value is typed
• when value has unexpected type, an exception is thrown

Example

<?php

namespace App\Console\Commands;

use App\Models\User;
use App\Support\DripEmailer;
use Illuminate\Console\Command;
 
class SendEmails extends Command
{
    protected $signature = 'mail:send {user} {--flag} {--subject=} {--cc=*}';
    protected $description = 'Send a marketing email to a user';
 
    /**
     * Execute the console command.
     * 
     * @param int[] $cc
     */
    public function handle(
        #[Argument('user')] int $userId,
        #[Option('flag') bool $flag,
        #[Option('cc') array $cc,
        #[Option('subject') string $subject = 'Default subject',
        DripEmailer $drip,
    ): void {
        $user = User::find($userId);
        $cc = User::whereIn('id', $cc)->get();

        if ($flag) {
            // do something
        }

        $drip->send($user, $cc, $subject);
    }
}

[taylorotwell]

Maybe I'm crazy but can you not just type options and arguments like this:

$foo = (string) $this->option('bar');

[shaedrich]

Same goes with many other contextual other attributes in controllers