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Expression-path

Change-expression-path

Modifying constructor for expression-path structures.

Syntax

(change-expression-path x 
                        [:get <get>])

This is an often useful alternative to make-expression-path.

We construct a new expression-path 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-expression-path

(defmacro change-expression-path (x &rest args)
  (std::change-aggregate 'expression-path
                         x args '((:get . expression-path->get))
                         'change-expression-path
                         'nil))