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Alias

Change-alias

Modifying constructor for alias structures.

Syntax

(change-alias x 
              [:name <name>] 
              [:val <val>])

This is an often useful alternative to make-alias.

We construct a new alias 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-alias

(defmacro change-alias (x &rest args)
  (std::change-aggregate 'alias
                         x args
                         '((:name . alias->name)
                           (:val . alias->val))
                         'change-alias
                         'nil))