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Enumer

Enumer->value

Get the value field from a enumer.

Signature
(enumer->value x) → value
Arguments: x — Guard (enumerp x).
Returns: value — Type (const-expr-optionp value).

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

Definitions and Theorems

Function: enumer->value$inline

(defun enumer->value$inline (x)
  (declare (xargs :guard (enumerp x)))
  (declare (xargs :guard t))
  (mbe :logic
       (b* ((x (and t x)))
         (const-expr-option-fix (cdr x)))
       :exec (cdr x)))

Theorem: const-expr-optionp-of-enumer->value

(defthm const-expr-optionp-of-enumer->value
  (b* ((value (enumer->value$inline x)))
    (const-expr-optionp value))
  :rule-classes :rewrite)

Theorem: enumer->value$inline-of-enumer-fix-x

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

Theorem: enumer->value$inline-enumer-equiv-congruence-on-x

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