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Designor-sub

Change-designor-sub

Modifying constructor for designor-sub structures.

Syntax

(change-designor-sub x 
                     [:index <index>] 
                     [:range? <range?>])

This is an often useful alternative to make-designor-sub.

We construct a new designor-sub structure that is a copy of x, except that you can explicitly change some particular fields. Any fields you don't mention just keep their values from x.

Definition

This is an ordinary change- macro introduced by fty::defprod.

Macro: change-designor-sub

(defmacro change-designor-sub (x &rest args)
  (std::change-aggregate 'designor-sub
                         x args
                         '((:index . designor-sub->index)
                           (:range? . designor-sub->range?))
                         'change-designor-sub
                         'remake-designor-sub))