use Jobcloud\ClosureValidator\Parameter;
use Jobcloud\ClosureValidator\Signature;
use Jobcloud\ClosureValidator\Validator;

$closure = function($param1, $param2) {};

$validator = new Validator;

$givenSignature = $validator->getSignatureFromClosure($closure);

$wishedSignature = new Signature(
    [
        new Parameter('param1'),
        new Parameter('param2')
    ]
);

$diff = $validator->compare($givenSignature, $wishedSignature);

if (!$diff->isIdentical()) {
    throw new \Exception('Invalid closure signature');
}

$validator->validOrException($givenSignature, $wishedSignature);