Get the target field from a statement-assign-single.
(statement-assign-single->target x) → target
This is an ordinary field accessor created by fty::defprod.
Function:
(defun statement-assign-single->target$inline (x) (declare (xargs :guard (statementp x))) (declare (xargs :guard (equal (statement-kind x) :assign-single))) (let ((__function__ 'statement-assign-single->target)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (statement-kind x) :assign-single) x))) (path-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm pathp-of-statement-assign-single->target (b* ((target (statement-assign-single->target$inline x))) (pathp target)) :rule-classes :rewrite)
Theorem:
(defthm statement-assign-single->target$inline-of-statement-fix-x (equal (statement-assign-single->target$inline (statement-fix x)) (statement-assign-single->target$inline x)))
Theorem:
(defthm statement-assign-single->target$inline-statement-equiv-congruence-on-x (implies (statement-equiv x x-equiv) (equal (statement-assign-single->target$inline x) (statement-assign-single->target$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm statement-assign-single->target-when-wrong-kind (implies (not (equal (statement-kind x) :assign-single)) (equal (statement-assign-single->target x) (path-fix nil))))