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Expr-funcall

Change-expr-funcall

Modifying constructor for expr-funcall structures.

Syntax

(change-expr-funcall x 
                     [:fun <fun>] 
                     [:args <args>])

This is an often useful alternative to make-expr-funcall.

We construct a new expr-funcall 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-expr-funcall

(defmacro change-expr-funcall (x &rest args)
  (std::change-aggregate 'expr-funcall
                         x args
                         '((:fun . expr-funcall->fun)
                           (:args . expr-funcall->args))
                         'change-expr-funcall
                         'nil))