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Stmt-compound

Stmt-compound->items

Get the items field from a stmt-compound.

Signature
(stmt-compound->items x) → items
Arguments: x — Guard (stmtp x).
Returns: items — Type (block-item-listp items).

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

Definitions and Theorems

Function: stmt-compound->items$inline

(defun stmt-compound->items$inline (x)
  (declare (xargs :guard (stmtp x)))
  (declare (xargs :guard (equal (stmt-kind x) :compound)))
  (let ((__function__ 'stmt-compound->items))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (stmt-kind x) :compound)
                      x)))
           (block-item-list-fix (std::da-nth 0 (cdr x))))
         :exec (std::da-nth 0 (cdr x)))))

Theorem: block-item-listp-of-stmt-compound->items

(defthm block-item-listp-of-stmt-compound->items
  (b* ((items (stmt-compound->items$inline x)))
    (block-item-listp items))
  :rule-classes :rewrite)

Theorem: stmt-compound->items$inline-of-stmt-fix-x

(defthm stmt-compound->items$inline-of-stmt-fix-x
  (equal (stmt-compound->items$inline (stmt-fix x))
         (stmt-compound->items$inline x)))

Theorem: stmt-compound->items$inline-stmt-equiv-congruence-on-x

(defthm stmt-compound->items$inline-stmt-equiv-congruence-on-x
  (implies (stmt-equiv x x-equiv)
           (equal (stmt-compound->items$inline x)
                  (stmt-compound->items$inline x-equiv)))
  :rule-classes :congruence)

Theorem: stmt-compound->items-when-wrong-kind

(defthm stmt-compound->items-when-wrong-kind
  (implies (not (equal (stmt-kind x) :compound))
           (equal (stmt-compound->items x)
                  (block-item-list-fix nil))))