Same name in other branches

1. 11.x core/lib/Drupal/Core/Utility/CallableResolver.php \Drupal\Core\Utility\CallableResolver::getCallableFromDefinition()

Gets a callable from a definition.

Parameters

callable|array|string $definition: A callable definition.

Return value

callable A callable.

Throws

\InvalidArgumentException Thrown when no valid callable could be resolved from the definition.

File

core/lib/Drupal/Core/Utility/CallableResolver.php, line 62

Class

CallableResolver

Resolves PHP callables.

Namespace

Drupal\Core\Utility

Code

public function getCallableFromDefinition(callable|array|string $definition) : callable {
    // If the definition is natively a callable, we can return it immediately.
    if (is_callable($definition)) {
        return $definition;
    }
    if (is_array($definition)) {
        throw new \InvalidArgumentException(sprintf('The callable definition provided "[%s]" is not a valid callable.', implode(",", $definition)));
    }
    if (!is_string($definition)) {
        throw new \InvalidArgumentException(sprintf('The callable definition provided was invalid. Illegal format of type: %s', gettype($definition)));
    }
    // Callable with __invoke().
    if (!str_contains($definition, ':')) {
        $instance = $this->classResolver
            ->getInstanceFromDefinition($definition);
        if (!is_callable($instance)) {
            throw new \InvalidArgumentException(sprintf('The callable definition provided was invalid. Class "%s" does not have a method "__invoke" and is not callable.', $instance::class));
        }
        return $instance;
    }
    // Callable in the service:method notation.
    $class_or_service = NULL;
    $method = NULL;
    $count = substr_count($definition, ':');
    if ($count == 1) {
        [
            $class_or_service,
            $method,
        ] = explode(':', $definition, 2);
    }
    // Callable in the class::method notation.
    if (str_contains($definition, '::')) {
        [
            $class_or_service,
            $method,
        ] = explode('::', $definition, 2);
    }
    if (empty($class_or_service) || empty($method)) {
        throw new \InvalidArgumentException(sprintf('The callable definition provided was invalid. Could not get class and method from definition "%s".', $definition));
    }
    $instance = $this->classResolver
        ->getInstanceFromDefinition($class_or_service);
    if (!is_callable([
        $instance,
        $method,
    ])) {
        throw new \InvalidArgumentException(sprintf('The callable definition provided was invalid. Either class "%s" does not have a method "%s", or it is not callable.', $instance::class, $method));
    }
    return [
        $instance,
        $method,
    ];
}

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