Modules.php

<?php namespace Config;

// Cannot extend BaseConfig or looping resources occurs.
class Modules
{
    /*
	 |--------------------------------------------------------------------------
	 | Auto-Discovery Enabled?
	 |--------------------------------------------------------------------------
	 |
	 | If true, then auto-discovery will happen across all elements listed in
	 | $activeExplorers below. If false, no auto-discovery will happen at all,
	 | giving a slight performance boost.
	 */
    public $enabled = true;

    /*
	 |--------------------------------------------------------------------------
	 | Auto-Discovery Within Composer Packages Enabled?
	 |--------------------------------------------------------------------------
	 |
	 | If true, then auto-discovery will happen across all namespaces loaded
	 | by Composer, as well as the namespaces configured locally.
	 */
    public $discoverInComposer = true;

    /*
	|--------------------------------------------------------------------------
	| Auto-discover Rules
	|--------------------------------------------------------------------------
	|
	| Lists the aliases of all discovery classes that will be active
	| and used during the current application request. If it is not
	| listed here, only the base application elements will be used.
	*/
    public $activeExplorers = ['events', 'registrars', 'routes', 'services'];

    /**
     * Should the application auto-discover the requested resources.
     *
     * Valid values are:
     *  - events
     *  - registrars
     *  - routes
     *  - services
     *
     * @param string $alias
     *
     * @return boolean
     */
    public function shouldDiscover(string $alias)
    {
        if (!$this->enabled) {
            return false;
        }

        $alias = strtolower($alias);

        return in_array($alias, $this->activeExplorers);
    }
}