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Closure-output

Closure-output->reg

Get the reg field from a closure-output.

Signature
(closure-output->reg x) → reg
Arguments: x — Guard (closure-outputp x).
Returns: reg — Type (regaccessp reg).

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

Definitions and Theorems

Function: closure-output->reg$inline

(defun closure-output->reg$inline (x)
  (declare (xargs :guard (closure-outputp x)))
  (declare (xargs :guard t))
  (let ((__function__ 'closure-output->reg))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (regaccess-fix (cdr (std::da-nth 0 (cdr x)))))
         :exec (cdr (std::da-nth 0 (cdr x))))))

Theorem: regaccessp-of-closure-output->reg

(defthm regaccessp-of-closure-output->reg
  (b* ((reg (closure-output->reg$inline x)))
    (regaccessp reg))
  :rule-classes :rewrite)

Theorem: closure-output->reg$inline-of-closure-output-fix-x

(defthm closure-output->reg$inline-of-closure-output-fix-x
  (equal (closure-output->reg$inline (closure-output-fix x))
         (closure-output->reg$inline x)))

Theorem: closure-output->reg$inline-closure-output-equiv-congruence-on-x

(defthm
    closure-output->reg$inline-closure-output-equiv-congruence-on-x
  (implies (closure-output-equiv x x-equiv)
           (equal (closure-output->reg$inline x)
                  (closure-output->reg$inline x-equiv)))
  :rule-classes :congruence)