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Vl-nonatom

Vl-nonatom->op

Get the op field from a vl-nonatom.

Signature
(vl-nonatom->op x) → op
Arguments: x — Guard (vl-expr-p x).
Returns: op — Type (vl-op-p op).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: vl-nonatom->op$inline

(defun vl-nonatom->op$inline (x)
  (declare (xargs :guard (vl-expr-p x)))
  (declare (xargs :guard (equal (vl-expr-kind x) :nonatom)))
  (let ((__function__ 'vl-nonatom->op))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (vl-expr-kind x) :nonatom)
                      x)))
           (vl-op-fix (std::prod-car (std::prod-car (cdr x)))))
         :exec (std::prod-car (std::prod-car (cdr x))))))

Theorem: vl-op-p-of-vl-nonatom->op

(defthm vl-op-p-of-vl-nonatom->op
  (b* ((op (vl-nonatom->op$inline x)))
    (vl-op-p op))
  :rule-classes ((:rewrite)))

Theorem: vl-nonatom->op$inline-of-vl-expr-fix-x

(defthm vl-nonatom->op$inline-of-vl-expr-fix-x
  (equal (vl-nonatom->op$inline (vl-expr-fix x))
         (vl-nonatom->op$inline x)))

Theorem: vl-nonatom->op$inline-vl-expr-equiv-congruence-on-x

(defthm vl-nonatom->op$inline-vl-expr-equiv-congruence-on-x
  (implies (vl-expr-equiv x x-equiv)
           (equal (vl-nonatom->op$inline x)
                  (vl-nonatom->op$inline x-equiv)))
  :rule-classes :congruence)

Theorem: vl-nonatom->op-when-wrong-kind

(defthm vl-nonatom->op-when-wrong-kind
  (implies (not (equal (vl-expr-kind x) :nonatom))
           (equal (vl-nonatom->op x)
                  (vl-op-fix nil))))