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Fundecl

Fundecl->output

Get the output field from a fundecl.

Signature
(fundecl->output x) → output
Arguments: x — Guard (fundeclp x).
Returns: output — Type (typep output).

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

Definitions and Theorems

Function: fundecl->output$inline

(defun fundecl->output$inline (x)
  (declare (xargs :guard (fundeclp x)))
  (declare (xargs :guard t))
  (let ((__function__ 'fundecl->output))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (type-fix (cdr (std::da-nth 4 (cdr x)))))
         :exec (cdr (std::da-nth 4 (cdr x))))))

Theorem: typep-of-fundecl->output

(defthm typep-of-fundecl->output
  (b* ((output (fundecl->output$inline x)))
    (typep output))
  :rule-classes :rewrite)

Theorem: fundecl->output$inline-of-fundecl-fix-x

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

Theorem: fundecl->output$inline-fundecl-equiv-congruence-on-x

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