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Jexpr-cond

Make-jexpr-cond

Basic constructor macro for jexpr-cond structures.

Syntax

(make-jexpr-cond [:test <test>] 
                 [:then <then>] 
                 [:else <else>])

This is the usual way to construct jexpr-cond structures. It simply conses together a structure with the specified fields.

This macro generates a new jexpr-cond structure from scratch. See also change-jexpr-cond, which can "change" an existing structure, instead.

Definition

This is an ordinary make- macro introduced by fty::defprod.

Macro: make-jexpr-cond

(defmacro make-jexpr-cond (&rest args)
  (std::make-aggregate 'jexpr-cond
                       args '((:test) (:then) (:else))
                       'make-jexpr-cond
                       nil))

Function: jexpr-cond

(defun jexpr-cond (test then else)
  (declare (xargs :guard (and (jexprp test)
                              (jexprp then)
                              (jexprp else))))
  (declare (xargs :guard t))
  (let ((__function__ 'jexpr-cond))
    (declare (ignorable __function__))
    (b* ((test (mbe :logic (jexpr-fix test)
                    :exec test))
         (then (mbe :logic (jexpr-fix then)
                    :exec then))
         (else (mbe :logic (jexpr-fix else)
                    :exec else)))
      (cons :cond (list test then else)))))