Function CheckArgCount

runtime/sam/expr/function/function.go:195–203

(narg int, argmin int, argmax int)

}

func CheckArgCount(narg int, argmin int, argmax int) error {
	if argmin != -1 && narg < argmin {
		return ErrTooFewArgs
	}
	if argmax != -1 && narg > argmax {
		return ErrTooManyArgs
	}
	return nil
}

// HasBoolResult returns true if the function name returns a Boolean value.
// XXX This is a hack so the semantic compiler can determine if a single call