Modifying constructor for expression-product-update structures.
(change-expression-product-update x [:type <type>] [:target <target>] [:fields <fields>])
This is an often useful alternative to make-expression-product-update.
We construct a new expression-product-update structure that is a copy of
This is an ordinary
Macro:
(defmacro change-expression-product-update (x &rest args) (std::change-aggregate 'expression-product-update x args '((:type . expression-product-update->type) (:target . expression-product-update->target) (:fields . expression-product-update->fields)) 'change-expression-product-update 'nil))