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Mapping

Mappingp

Recognizer for mapping structures.

Signature
(mappingp x) → *

Definitions and Theorems

Function: mappingp

(defun mappingp (x)
 (declare (xargs :guard t))
 (let ((__function__ 'mappingp))
  (declare (ignorable __function__))
  (and
   (consp x)
   (eq (car x) :mapping)
   (mbe
     :logic (and (alistp (cdr x))
                 (equal (strip-cars (cdr x))
                        '(name key-name
                               key-type value-name value-type)))
     :exec
     (fty::alist-with-carsp (cdr x)
                            '(name key-name
                                   key-type value-name value-type)))
   (b* ((name (cdr (std::da-nth 0 (cdr x))))
        (key-name (cdr (std::da-nth 1 (cdr x))))
        (key-type (cdr (std::da-nth 2 (cdr x))))
        (value-name (cdr (std::da-nth 3 (cdr x))))
        (value-type (cdr (std::da-nth 4 (cdr x)))))
     (and (identifierp name)
          (identifierp key-name)
          (finalize-typep key-type)
          (identifierp value-name)
          (finalize-typep value-type))))))

Theorem: consp-when-mappingp

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