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Bexp-equal

Change-bexp-equal

Modifying constructor for bexp-equal structures.

Syntax

(change-bexp-equal x 
                   [:left <left>] 
                   [:right <right>])

This is an often useful alternative to make-bexp-equal.

We construct a new bexp-equal 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-bexp-equal

(defmacro change-bexp-equal (x &rest args)
  (std::change-aggregate 'bexp-equal
                         x args
                         '((:left . bexp-equal->left)
                           (:right . bexp-equal->right))
                         'change-bexp-equal
                         'nil))