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Jstatem-ifelse

Make-jstatem-ifelse

Basic constructor macro for jstatem-ifelse structures.

Syntax

(make-jstatem-ifelse [:test <test>] 
                     [:then <then>] 
                     [:else <else>])

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

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

Definition

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

Macro: make-jstatem-ifelse

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

Function: jstatem-ifelse

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