How to remove a class

Question

Is it possible to remove classes from a plugin and add theme into to theme?

I need to modify Woocommerce WP_Checkout class but I want to move it to my theme folder so if woocommerce will be updated my changes will not be effected. Is theme some way to make an remove and add action/hook? Or maybe unhook page and add my custom page with the class?

Thanks in advance Patrick

Answer 1

The class WC_Checkout is assigned to a member of the class Woocommerce. So maybe something like this could work:

add_action( "plugins_loaded", "wpse_91273_custom_checkout", 999 );

function wpse_91273_custom_checkout()
{
    $GLOBALS['woocommerce']->checkout = new Custom_Checkout;
}