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Macro-info

Macro-infop

Recognizer for macro-info structures.

Signature
(macro-infop x) → *

Definitions and Theorems

Function: macro-infop

(defun macro-infop (x)
 (declare (xargs :guard t))
 (and
    (consp x)
    (cond ((or (atom x) (eq (car x) :object))
           (and (true-listp (cdr x))
                (eql (len (cdr x)) 1)
                (b* ((replace (std::da-nth 0 (cdr x))))
                  (and (plexeme-listp replace)
                       (plexeme-list-token/space-p replace)))))
          (t (and (eq (car x) :function)
                  (and (true-listp (cdr x))
                       (eql (len (cdr x)) 3))
                  (b* ((params (std::da-nth 0 (cdr x)))
                       (ellipsis (std::da-nth 1 (cdr x)))
                       (replace (std::da-nth 2 (cdr x))))
                    (and (ident-listp params)
                         (booleanp ellipsis)
                         (plexeme-listp replace)
                         (plexeme-list-token/space-p replace))))))))

Theorem: consp-when-macro-infop

(defthm consp-when-macro-infop
  (implies (macro-infop x) (consp x))
  :rule-classes :compound-recognizer)