rb_io_readlines 8335 io.c lines = rb_io_readlines(argc, argv, ARGF.current_file); rb_io_readlines 9751 io.c return rb_io_readlines(arg->argc, arg->argv, arg->io); rb_io_readlines 12311 io.c rb_define_method(rb_cIO, "readlines", rb_io_readlines, -1);