src/Filter/Filters.php
protected static function _ref($context, $method)
    {
        if (is_string($context)) {
            return $context . "::{$method}";
        }
        return get_class($context) . '#' . spl_object_hash($context) . "::{$method}";
    }
protected static function _ref($context, $method)
    {
        if (is_string($context)) {
            return $context . "::{$method}";
        }
        return get_class($context) . '#' . spl_object_hash($context) . "::{$method}";
    }
protected static function _ref ( $ context , $ method ) { if ( is_string ( $ context ) ) { return $ context . "::{$method}" ; } return get_class ( $ context ) . '#' . spl_object_hash ( $ context ) . "::{$method}" ; }
Generates a reference id from a provided callable definition.

@param  mixed  $context An instance or fully-namespaced class name.
@param  string $method  A method name.
@return string          A reference id.
Generates a reference id from a provided callable definition .