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Vl-lucidocc

Vl-lucidocc-p

Recognizer for vl-lucidocc structures.

Signature
(vl-lucidocc-p x) → *

Definitions and Theorems

Function: vl-lucidocc-p

(defun vl-lucidocc-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'vl-lucidocc-p))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :solo))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 2)
                     (b* ((ctx (std::da-nth 0 (cdr x)))
                          (ss (std::da-nth 1 (cdr x))))
                       (and (vl-context1-p ctx)
                            (vl-scopestack-p ss)))))
               ((eq (car x) :slice)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 4)
                     (b* ((left (std::da-nth 0 (cdr x)))
                          (right (std::da-nth 1 (cdr x)))
                          (ctx (std::da-nth 2 (cdr x)))
                          (ss (std::da-nth 3 (cdr x))))
                       (and (vl-expr-p left)
                            (vl-expr-p right)
                            (vl-context1-p ctx)
                            (vl-scopestack-p ss)))))
               (t (and (eq (car x) :tail)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 2))
                       (b* ((ctx (std::da-nth 0 (cdr x)))
                            (ss (std::da-nth 1 (cdr x))))
                         (and (vl-context1-p ctx)
                              (vl-scopestack-p ss)))))))))

Theorem: consp-when-vl-lucidocc-p

(defthm consp-when-vl-lucidocc-p
  (implies (vl-lucidocc-p x) (consp x))
  :rule-classes :compound-recognizer)