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    • Funarg

    Change-funarg

    Modifying constructor for funarg structures.

    Syntax
    (change-funarg x 
                   [:name <name>] 
                   [:sort <sort>] 
                   [:value <value>]) 
    

    This is an often useful alternative to make-funarg.

    We construct a new funarg 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-funarg

    (defmacro change-funarg (x &rest args)
      (std::change-aggregate 'funarg
                             x args
                             '((:name . funarg->name)
                               (:sort . funarg->sort)
                               (:value . funarg->value))
                             'change-funarg
                             'nil))