protected function addClass(string $class)
    {
        if ($this->initialized) {
            throw new RuntimeException("You can't register provider class as registry as been initialized.");
        }

        if (!class_exists($class)) {
            throw new InvalidArgumentException("Class $class does not exist.");
        }

        if (!is_subclass_of($class, ProviderInterface::class)) {
            throw new InvalidArgumentException("Class $class must implement " . ProviderInterface::class);
        }

        $this->classes[] = $class;
    }
protected function addClass(string $class)
    {
        if ($this->initialized) {
            throw new RuntimeException("You can't register provider class as registry as been initialized.");
        }

        if (!class_exists($class)) {
            throw new InvalidArgumentException("Class $class does not exist.");
        }

        if (!is_subclass_of($class, ProviderInterface::class)) {
            throw new InvalidArgumentException("Class $class must implement " . ProviderInterface::class);
        }

        $this->classes[] = $class;
    }
protected function addClass ( string $ class ) { if ( $ this -> initialized ) { throw new RuntimeException ( "You can't register provider class as registry as been initialized." ) ; } if ( ! class_exists ( $ class ) ) { throw new InvalidArgumentException ( "Class $class does not exist." ) ; } if ( ! is_subclass_of ( $ class , ProviderInterface :: class ) ) { throw new InvalidArgumentException ( "Class $class must implement " . ProviderInterface :: class ) ; } $ this -> classes [ ] = $ class ; }
Adds the given provider class.

@param string $class
Adds the given provider class .