BuddyPress::autoload( string $class )

	public function autoload( $class ) {
		$class_parts = explode( '_', strtolower( $class ) );

		if ( 'bp' !== $class_parts[0] ) {
			return;
		}

		$components = array(
			'activity',
			'blogs',
			'core',
			'friends',
			'groups',
			'members',
			'messages',
			'notifications',
			'settings',
			'xprofile',
			'profiletype',
			'forums',
			'search',
			'media',
			'gdpr',
			'invites',
		);

		// These classes don't have a name that matches their component.
		$irregular_map = array(
			'BP_Akismet'                     => 'activity',
			'BP_Admin'                       => 'core',
			'BP_Attachment_Avatar'           => 'core',
			'BP_Attachment_Cover_Image'      => 'core',
			'BP_Attachment'                  => 'core',
			'BP_Button'                      => 'core',
			'BP_Component'                   => 'core',
			'BP_Integration'                 => 'core',
			'BP_Customizer_Control_Range'    => 'core',
			'BP_Date_Query'                  => 'core',
			'BP_Email_Tokens'                => 'core',
			'BP_Email_Delivery'              => 'core',
			'BP_Email_Recipient'             => 'core',
			'BP_Email'                       => 'core',
			'BP_Embed'                       => 'core',
			'BP_Media_Extractor'             => 'core',
			'BP_Members_Suggestions'         => 'core',
			'BP_PHPMailer'                   => 'core',
			'BP_Recursive_Query'             => 'core',
			'BP_Suggestions'                 => 'core',
			'BP_Theme_Compat'                => 'core',
			'BP_User_Query'                  => 'core',
			'BP_Walker_Category_Checklist'   => 'core',
			'BP_Walker_Nav_Menu_Checklist'   => 'core',
			'BP_Walker_Nav_Menu'             => 'core',
			'BP_Core_Gdpr'                   => 'gdpr',
			'BP_Activity_Export'             => 'gdpr',
			'BP_Export'                      => 'gdpr',
			'BP_Friendship_Export'           => 'gdpr',
			'BP_Group_Export'                => 'gdpr',
			'BP_Group_Membership_Export'     => 'gdpr',
			'BP_Message_Export'              => 'gdpr',
			'BP_Notification_Export'         => 'gdpr',
			'BP_Settings_Export'             => 'gdpr',
			'BP_Xprofile_Export'             => 'gdpr',
			'BP_Bbp_Gdpr_Forums'             => 'gdpr',
			'BP_Bbp_Gdpr_Replies'            => 'gdpr',
			'BP_Bbp_Gdpr_Topics'             => 'gdpr',
			'BP_Core_Friends_Widget'         => 'friends',
            'BP_Core_Network_Posts_Widget'   => 'core',
            'BP_Core_Follow_Following_Widget'=> 'core',
			'BP_Group_Extension'             => 'groups',
			'BP_Group_Member_Query'          => 'groups',
			'BP_Core_Members_Template'       => 'members',
			'BP_Core_Members_Widget'         => 'members',
			'BP_Core_Recently_Active_Widget' => 'members',
			'BP_Core_Whos_Online_Widget'     => 'members',
			'BP_Registration_Theme_Compat'   => 'members',
			'BP_Signup'                      => 'members',
			'BP_BuddyBoss_Platform_Updater'  => 'core',
		);

		$component = null;

		// First check to see if the class is one without a properly namespaced name.
		if ( isset( $irregular_map[ $class ] ) ) {
			$component = $irregular_map[ $class ];

		// Next chunk is usually the component name.
		} elseif ( in_array( $class_parts[1], $components, true ) ) {
			$component = $class_parts[1];
		}

		if ( ! $component ) {
			return;
		}

		// Sanitize class name.
		$class = strtolower( str_replace( '_', '-', $class ) );
		if ( 'gdpr' === $component ) {
			$path = dirname( __FILE__ ) . "/bp-core/gdpr/class-{$class}.php";
		} else {
			$path = dirname( __FILE__ ) . "/bp-{$component}/classes/class-{$class}.php";
		}

		// Sanity check.
		if ( ! file_exists( $path ) ) {
			return;
		}

		/*
		 * Sanity check 2 - Check if component is active before loading class.
		 * Skip if PHPUnit is running, or BuddyPress is installing for the first time.
		 */
		if (
			! in_array( $component, array( 'core', 'members', 'xprofile', 'gdpr', 'profiletype' ), true ) &&
			! bp_is_active( $component ) &&
			! function_exists( 'tests_add_filter' )
		) {
			return;
		}

		require $path;
	}