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Vl-genbegin

Vl-genbegin->block

Get the block field from a vl-genbegin.

Signature
(vl-genbegin->block x) → block
Arguments: x — Guard (vl-genelement-p x).
Returns: block — Type (vl-genblock-p block).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: vl-genbegin->block$inline

(defun vl-genbegin->block$inline (x)
  (declare (xargs :guard (vl-genelement-p x)))
  (declare (xargs :guard (equal (vl-genelement-kind x)
                                :vl-genbegin)))
  (let ((__function__ 'vl-genbegin->block))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (vl-genelement-kind x)
                             :vl-genbegin)
                      x)))
           (vl-genblock-fix (std::da-nth 0 (cdr x))))
         :exec (std::da-nth 0 (cdr x)))))

Theorem: vl-genblock-p-of-vl-genbegin->block

(defthm vl-genblock-p-of-vl-genbegin->block
  (b* ((block (vl-genbegin->block$inline x)))
    (vl-genblock-p block))
  :rule-classes :rewrite)

Theorem: vl-genbegin->block$inline-of-vl-genelement-fix-x

(defthm vl-genbegin->block$inline-of-vl-genelement-fix-x
  (equal (vl-genbegin->block$inline (vl-genelement-fix x))
         (vl-genbegin->block$inline x)))

Theorem: vl-genbegin->block$inline-vl-genelement-equiv-congruence-on-x

(defthm
      vl-genbegin->block$inline-vl-genelement-equiv-congruence-on-x
  (implies (vl-genelement-equiv x x-equiv)
           (equal (vl-genbegin->block$inline x)
                  (vl-genbegin->block$inline x-equiv)))
  :rule-classes :congruence)

Theorem: vl-genbegin->block-when-wrong-kind

(defthm vl-genbegin->block-when-wrong-kind
  (implies (not (equal (vl-genelement-kind x)
                       :vl-genbegin))
           (equal (vl-genbegin->block x)
                  (vl-genblock-fix nil))))