Get the types field from a expression-call.
(expression-call->types x) → types
This is an ordinary field accessor created by fty::defprod.
Function:
(defun expression-call->types$inline (x) (declare (xargs :guard (expressionp x))) (declare (xargs :guard (equal (expression-kind x) :call))) (let ((__function__ 'expression-call->types)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (expression-kind x) :call) x))) (type-list-fix (std::da-nth 1 (cdr x)))) :exec (std::da-nth 1 (cdr x)))))
Theorem:
(defthm type-listp-of-expression-call->types (b* ((types (expression-call->types$inline x))) (type-listp types)) :rule-classes :rewrite)
Theorem:
(defthm expression-call->types$inline-of-expression-fix-x (equal (expression-call->types$inline (expression-fix x)) (expression-call->types$inline x)))
Theorem:
(defthm expression-call->types$inline-expression-equiv-congruence-on-x (implies (expression-equiv x x-equiv) (equal (expression-call->types$inline x) (expression-call->types$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm expression-call->types-when-wrong-kind (implies (not (equal (expression-kind x) :call)) (equal (expression-call->types x) (type-list-fix nil))))