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Stmt

Stmt-kind

Get the kind (tag) of a stmt structure.

Signature
(stmt-kind x) → kind
Arguments: x — Guard (stmtp x).

Definitions and Theorems

Function: stmt-kind$inline

(defun stmt-kind$inline (x)
  (declare (xargs :guard (stmtp x)))
  (let ((__function__ 'stmt-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((eq (car x) :labeled) :labeled)
                      ((eq (car x) :compound) :compound)
                      ((or (atom x) (eq (car x) :expr)) :expr)
                      ((eq (car x) :null) :null)
                      ((eq (car x) :if) :if)
                      ((eq (car x) :ifelse) :ifelse)
                      ((eq (car x) :switch) :switch)
                      ((eq (car x) :while) :while)
                      ((eq (car x) :dowhile) :dowhile)
                      ((eq (car x) :for) :for)
                      ((eq (car x) :goto) :goto)
                      ((eq (car x) :continue) :continue)
                      ((eq (car x) :break) :break)
                      (t :return))
         :exec (car x))))

Theorem: stmt-kind-possibilities

(defthm stmt-kind-possibilities
 (or (equal (stmt-kind x) :labeled)
     (equal (stmt-kind x) :compound)
     (equal (stmt-kind x) :expr)
     (equal (stmt-kind x) :null)
     (equal (stmt-kind x) :if)
     (equal (stmt-kind x) :ifelse)
     (equal (stmt-kind x) :switch)
     (equal (stmt-kind x) :while)
     (equal (stmt-kind x) :dowhile)
     (equal (stmt-kind x) :for)
     (equal (stmt-kind x) :goto)
     (equal (stmt-kind x) :continue)
     (equal (stmt-kind x) :break)
     (equal (stmt-kind x) :return))
 :rule-classes ((:forward-chaining :trigger-terms ((stmt-kind x)))))