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Vl-timeunit

Vl-timeunit->string

Get the string corresponding to a vl-timeunit-p.

Signature
(vl-timeunit->string x) → str
Arguments: x — Guard (vl-timeunit-p x).
Returns: str — Type (stringp str).

Definitions and Theorems

Function: vl-timeunit->string

(defun vl-timeunit->string (x)
  (declare (xargs :guard (vl-timeunit-p x)))
  (let ((__function__ 'vl-timeunit->string))
    (declare (ignorable __function__))
    (let ((x (mbe :logic (vl-timeunit-fix x)
                  :exec x)))
      (case x (:vl-s "s")
            (:vl-ms "ms")
            (:vl-us "us")
            (:vl-ns "ns")
            (:vl-ps "ps")
            (:vl-fs "fs")
            (otherwise (progn$ (impossible) "s"))))))

Theorem: stringp-of-vl-timeunit->string

(defthm stringp-of-vl-timeunit->string
  (b* ((str (vl-timeunit->string x)))
    (stringp str))
  :rule-classes :type-prescription)

Theorem: vl-timeunit->string-of-vl-timeunit-fix-x

(defthm vl-timeunit->string-of-vl-timeunit-fix-x
  (equal (vl-timeunit->string (vl-timeunit-fix x))
         (vl-timeunit->string x)))

Theorem: vl-timeunit->string-vl-timeunit-equiv-congruence-on-x

(defthm vl-timeunit->string-vl-timeunit-equiv-congruence-on-x
  (implies (vl-timeunit-equiv x x-equiv)
           (equal (vl-timeunit->string x)
                  (vl-timeunit->string x-equiv)))
  :rule-classes :congruence)