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Structdeclor

Change-structdeclor

Modifying constructor for structdeclor structures.

Syntax

(change-structdeclor x 
                     [:declor? <declor?>] 
                     [:expr? <expr?>])

This is an often useful alternative to make-structdeclor.

We construct a new structdeclor 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-structdeclor

(defmacro change-structdeclor (x &rest args)
  (std::change-aggregate 'structdeclor
                         x args
                         '((:declor? . structdeclor->declor?)
                           (:expr? . structdeclor->expr?))
                         'change-structdeclor
                         'nil))