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Exec-outcome

Exec-outcome-kind

Get the kind (tag) of a exec-outcome structure.

Signature
(exec-outcome-kind x) → kind
Arguments: x — Guard (exec-outcome-p x).

Definitions and Theorems

Function: exec-outcome-kind$inline

(defun exec-outcome-kind$inline (x)
  (declare (xargs :guard (exec-outcome-p x)))
  (let ((__function__ 'exec-outcome-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :terminating))
                       :terminating)
                      ((eq (car x) :error) :error)
                      (t :nonterminating))
         :exec (car x))))

Theorem: exec-outcome-kind-possibilities

(defthm exec-outcome-kind-possibilities
  (or (equal (exec-outcome-kind x)
             :terminating)
      (equal (exec-outcome-kind x) :error)
      (equal (exec-outcome-kind x)
             :nonterminating))
  :rule-classes
  ((:forward-chaining :trigger-terms ((exec-outcome-kind x)))))