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Block-item-decl

Block-item-decl->info

Get the info field from a block-item-decl.

Signature
(block-item-decl->info x) → info
Arguments: x — Guard (block-itemp x).
Returns: info — Type (acl2::any-p info).

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

Definitions and Theorems

Function: block-item-decl->info$inline

(defun block-item-decl->info$inline (x)
  (declare (xargs :guard (block-itemp x)))
  (declare (xargs :guard (equal (block-item-kind x) :decl)))
  (mbe :logic
       (b* ((x (and (equal (block-item-kind x) :decl)
                    x)))
         (identity (cdr (cdr x))))
       :exec (cdr (cdr x))))

Theorem: any-p-of-block-item-decl->info

(defthm any-p-of-block-item-decl->info
  (b* ((info (block-item-decl->info$inline x)))
    (acl2::any-p info))
  :rule-classes :rewrite)

Theorem: block-item-decl->info$inline-of-block-item-fix-x

(defthm block-item-decl->info$inline-of-block-item-fix-x
  (equal (block-item-decl->info$inline (block-item-fix x))
         (block-item-decl->info$inline x)))

Theorem: block-item-decl->info$inline-block-item-equiv-congruence-on-x

(defthm
      block-item-decl->info$inline-block-item-equiv-congruence-on-x
  (implies (block-item-equiv x x-equiv)
           (equal (block-item-decl->info$inline x)
                  (block-item-decl->info$inline x-equiv)))
  :rule-classes :congruence)

Theorem: block-item-decl->info-when-wrong-kind

(defthm block-item-decl->info-when-wrong-kind
  (implies (not (equal (block-item-kind x) :decl))
           (equal (block-item-decl->info x)
                  (identity nil))))