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• Parstate$

Parstate$-p

Recognizer for parstate$ structures.

Signature

(parstate$-p x) → *

Definitions and Theorems

Function: parstate$-p

(defun parstate$-p (x)
  (declare (xargs :guard t))
  (and (consp x)
       (consp (car x))
       (consp (cdr (car x)))
       (consp (cdr x))
       (consp (car (cdr x)))
       (consp (cdr (cdr x)))
       (b* ((bytes (car (car x)))
            (position (car (cdr (car x))))
            (chars-read (cdr (cdr (car x))))
            (chars-unread (car (car (cdr x))))
            (tokens-read (cdr (car (cdr x))))
            (tokens-unread (car (cdr (cdr x))))
            (version (cdr (cdr (cdr x)))))
         (and (byte-listp bytes)
              (positionp position)
              (char+position-listp chars-read)
              (char+position-listp chars-unread)
              (token+span-listp tokens-read)
              (token+span-listp tokens-unread)
              (c::versionp version)))))

Theorem: consp-when-parstate$-p

(defthm consp-when-parstate$-p
  (implies (parstate$-p x) (consp x))
  :rule-classes :compound-recognizer)