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Stmt-if

Change-stmt-if

Modifying constructor for stmt-if structures.

Syntax

(change-stmt-if x 
                [:test <test>] 
                [:then <then>])

This is an often useful alternative to make-stmt-if.

We construct a new stmt-if 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-stmt-if

(defmacro change-stmt-if (x &rest args)
  (std::change-aggregate 'stmt-if
                         x args
                         '((:test . stmt-if->test)
                           (:then . stmt-if->then))
                         'change-stmt-if
                         'nil))