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Statement-assign

Change-statement-assign

Modifying constructor for statement-assign structures.

Syntax

(change-statement-assign x 
                         [:op <op>] 
                         [:left <left>] 
                         [:right <right>])

This is an often useful alternative to make-statement-assign.

We construct a new statement-assign 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-statement-assign

(defmacro change-statement-assign (x &rest args)
  (std::change-aggregate 'statement-assign
                         x args
                         '((:op . statement-assign->op)
                           (:left . statement-assign->left)
                           (:right . statement-assign->right))
                         'change-statement-assign
                         'nil))