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Jresult

Jresult-kind

Get the kind (tag) of a jresult structure.

Signature
(jresult-kind x) → kind
Arguments: x — Guard (jresultp x).

Definitions and Theorems

Function: jresult-kind$inline

(defun jresult-kind$inline (x)
  (declare (xargs :guard (jresultp x)))
  (let ((__function__ 'jresult-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :type)) :type)
                      (t :void))
         :exec (car x))))

Theorem: jresult-kind-possibilities

(defthm jresult-kind-possibilities
  (or (equal (jresult-kind x) :type)
      (equal (jresult-kind x) :void))
  :rule-classes
  ((:forward-chaining :trigger-terms ((jresult-kind x)))))