// vtest vflags: -prod -skip-unused
// See https://github.com/vlang/v/issues/20923
module main

import os
import io

fn main() {
	mut file := os.open_file(@FILE, 'r')!
	mut buff_reader := io.new_buffered_reader(reader: file)
	for {
		a := buff_reader.read_line() or { break }
		println(a)
	}
}