在Auryn依赖注入器中按位置设置注入定义

Question

As seen in the example here

interface Engine {}

class V8 implements Engine {}

class Car {
    private $engine;
    public function __construct(Engine $engine) {
        $this->engine = $engine;
    }
}

$injector = new Auryn\Injector;
$injector->define('Car', ['engine' => 'V8']);
$car = $injector->make('Car');

In the line $injector->define('Car', ['engine' => 'V8']);, engine is literally based on the parameter variable name of Car's constructor ($engine).

There's no problem with that but what if someday, the author of Car decided to change the parameter variable name of its constructor to something else (e.g., public function __construct(Engine $motor))? This would break the injector.

Is there a way to avoid this, perhaps define by position instead of literal parameter names?