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Statement

Statement-kind

Get the kind (tag) of a statement structure.

Signature
(statement-kind x) → kind
Arguments: x — Guard (statementp x).

Definitions and Theorems

Function: statement-kind$inline

(defun statement-kind$inline (x)
  (declare (xargs :guard (statementp x)))
  (let ((__function__ 'statement-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :let)) :let)
                      ((eq (car x) :const) :const)
                      ((eq (car x) :assign) :assign)
                      ((eq (car x) :return) :return)
                      ((eq (car x) :for) :for)
                      ((eq (car x) :if) :if)
                      ((eq (car x) :console) :console)
                      ((eq (car x) :block) :block)
                      ((eq (car x) :finalize) :finalize)
                      ((eq (car x) :increment) :increment)
                      (t :decrement))
         :exec (car x))))

Theorem: statement-kind-possibilities

(defthm statement-kind-possibilities
  (or (equal (statement-kind x) :let)
      (equal (statement-kind x) :const)
      (equal (statement-kind x) :assign)
      (equal (statement-kind x) :return)
      (equal (statement-kind x) :for)
      (equal (statement-kind x) :if)
      (equal (statement-kind x) :console)
      (equal (statement-kind x) :block)
      (equal (statement-kind x) :finalize)
      (equal (statement-kind x) :increment)
      (equal (statement-kind x) :decrement))
  :rule-classes
  ((:forward-chaining :trigger-terms ((statement-kind x)))))