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Closure

Change-closure

Modifying constructor for closure structures.

Syntax

(change-closure x 
                [:name <name>] 
                [:inputs <inputs>] 
                [:instrs <instrs>] 
                [:outputs <outputs>])

This is an often useful alternative to make-closure.

We construct a new closure 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-closure

(defmacro change-closure (x &rest args)
  (std::change-aggregate 'closure
                         x args
                         '((:name . closure->name)
                           (:inputs . closure->inputs)
                           (:instrs . closure->instrs)
                           (:outputs . closure->outputs))
                         'change-closure
                         'nil))