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Value-object

Value-object->members

Get the members field from a value-object.

Signature
(value-object->members x) → members
Arguments: x — Guard (valuep x).
Returns: members — Type (member-listp members).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: value-object->members$inline

(defun value-object->members$inline (x)
  (declare (xargs :guard (valuep x)))
  (declare (xargs :guard (equal (value-kind x) :object)))
  (let ((__function__ 'value-object->members))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (value-kind x) :object) x)))
           (member-list-fix (std::da-nth 0 (cdr x))))
         :exec (std::da-nth 0 (cdr x)))))

Theorem: member-listp-of-value-object->members

(defthm member-listp-of-value-object->members
  (b* ((members (value-object->members$inline x)))
    (member-listp members))
  :rule-classes :rewrite)

Theorem: value-object->members$inline-of-value-fix-x

(defthm value-object->members$inline-of-value-fix-x
  (equal (value-object->members$inline (value-fix x))
         (value-object->members$inline x)))

Theorem: value-object->members$inline-value-equiv-congruence-on-x

(defthm value-object->members$inline-value-equiv-congruence-on-x
  (implies (value-equiv x x-equiv)
           (equal (value-object->members$inline x)
                  (value-object->members$inline x-equiv)))
  :rule-classes :congruence)

Theorem: value-object->members-when-wrong-kind

(defthm value-object->members-when-wrong-kind
  (implies (not (equal (value-kind x) :object))
           (equal (value-object->members x)
                  (member-list-fix nil))))