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Denv

Change-denv

Modifying constructor for denv structures.

Syntax

(change-denv x 
             [:call-stack <call-stack>] 
             [:functions <functions>] 
             [:structs <structs>] 
             [:screen <screen>] 
             [:curve <curve>])

This is an often useful alternative to make-denv.

We construct a new denv 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-denv

(defmacro change-denv (x &rest args)
  (std::change-aggregate 'denv
                         x args
                         '((:call-stack . denv->call-stack)
                           (:functions . denv->functions)
                           (:structs . denv->structs)
                           (:screen . denv->screen)
                           (:curve . denv->curve))
                         'change-denv
                         'nil))