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Input-item

Input-itemp

Recognizer for input-item structures.

Signature
(input-itemp x) → *

Definitions and Theorems

Function: input-itemp

(defun input-itemp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'input-itemp))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :input-item)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x))
                                 '(name type value)))
              :exec (fty::alist-with-carsp (cdr x)
                                           '(name type value)))
         (b* ((name (cdr (std::da-nth 0 (cdr x))))
              (type (cdr (std::da-nth 1 (cdr x))))
              (value (cdr (std::da-nth 2 (cdr x)))))
           (and (identifierp name)
                (input-typep type)
                (input-expressionp value))))))

Theorem: consp-when-input-itemp

(defthm consp-when-input-itemp
  (implies (input-itemp x) (consp x))
  :rule-classes :compound-recognizer)