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Expr-call

Expr-call->args

Get the args field from a expr-call.

Signature
(expr-call->args x) → args
Arguments: x — Guard (exprp x).
Returns: args — Type (expr-listp args).

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

Definitions and Theorems

Function: expr-call->args$inline

(defun expr-call->args$inline (x)
  (declare (xargs :guard (exprp x)))
  (declare (xargs :guard (equal (expr-kind x) :call)))
  (let ((__function__ 'expr-call->args))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and (equal (expr-kind x) :call) x)))
           (expr-list-fix (std::da-nth 1 (cdr x))))
         :exec (std::da-nth 1 (cdr x)))))

Theorem: expr-listp-of-expr-call->args

(defthm expr-listp-of-expr-call->args
  (b* ((args (expr-call->args$inline x)))
    (expr-listp args))
  :rule-classes :rewrite)

Theorem: expr-call->args$inline-of-expr-fix-x

(defthm expr-call->args$inline-of-expr-fix-x
  (equal (expr-call->args$inline (expr-fix x))
         (expr-call->args$inline x)))

Theorem: expr-call->args$inline-expr-equiv-congruence-on-x

(defthm expr-call->args$inline-expr-equiv-congruence-on-x
  (implies (expr-equiv x x-equiv)
           (equal (expr-call->args$inline x)
                  (expr-call->args$inline x-equiv)))
  :rule-classes :congruence)

Theorem: expr-call->args-when-wrong-kind

(defthm expr-call->args-when-wrong-kind
  (implies (not (equal (expr-kind x) :call))
           (equal (expr-call->args x)
                  (expr-list-fix nil))))