1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
17 use net::{lookup_host, ntoh, hton, IpAddr, Ipv4Addr, Ipv6Addr};
19 use sys::net::netc as c;
20 use sys_common::{FromInner, AsInner, IntoInner};
25 /// Representation of a socket address for networking applications.
27 /// A socket address can either represent the IPv4 or IPv6 protocol and is
28 /// paired with at least a port number as well. Each protocol may have more
29 /// specific information about the address available to it as well.
30 #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
31 #[stable(feature = "rust1", since = "1.0.0")]
33 /// An IPv4 socket address which is a (ip, port) combination.
34 #[stable(feature = "rust1", since = "1.0.0")]
35 V4(#[stable(feature = "rust1", since = "1.0.0")] SocketAddrV4),
36 /// An IPv6 socket address
37 #[stable(feature = "rust1", since = "1.0.0")]
38 V6(#[stable(feature = "rust1", since = "1.0.0")] SocketAddrV6),
41 /// An IPv4 socket address which is a (ip, port) combination.
43 #[stable(feature = "rust1", since = "1.0.0")]
44 pub struct SocketAddrV4 { inner: c::sockaddr_in }
46 /// An IPv6 socket address.
48 #[stable(feature = "rust1", since = "1.0.0")]
49 pub struct SocketAddrV6 { inner: c::sockaddr_in6 }
52 /// Creates a new socket address from the (ip, port) pair.
53 #[stable(feature = "ip_addr", since = "1.7.0")]
54 pub fn new(ip: IpAddr, port: u16) -> SocketAddr {
56 IpAddr::V4(a) => SocketAddr::V4(SocketAddrV4::new(a, port)),
57 IpAddr::V6(a) => SocketAddr::V6(SocketAddrV6::new(a, port, 0, 0)),
61 /// Returns the IP address associated with this socket address.
62 #[stable(feature = "ip_addr", since = "1.7.0")]
63 pub fn ip(&self) -> IpAddr {
65 SocketAddr::V4(ref a) => IpAddr::V4(*a.ip()),
66 SocketAddr::V6(ref a) => IpAddr::V6(*a.ip()),
70 /// Change the IP address associated with this socket address.
71 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
72 pub fn set_ip(&mut self, new_ip: IpAddr) {
73 // `match (*self, new_ip)` would have us mutate a copy of self only to throw it away.
74 match (self, new_ip) {
75 (&mut SocketAddr::V4(ref mut a), IpAddr::V4(new_ip)) => a.set_ip(new_ip),
76 (&mut SocketAddr::V6(ref mut a), IpAddr::V6(new_ip)) => a.set_ip(new_ip),
77 (self_, new_ip) => *self_ = Self::new(new_ip, self_.port()),
81 /// Returns the port number associated with this socket address.
82 #[stable(feature = "rust1", since = "1.0.0")]
83 pub fn port(&self) -> u16 {
85 SocketAddr::V4(ref a) => a.port(),
86 SocketAddr::V6(ref a) => a.port(),
90 /// Change the port number associated with this socket address.
91 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
92 pub fn set_port(&mut self, new_port: u16) {
94 SocketAddr::V4(ref mut a) => a.set_port(new_port),
95 SocketAddr::V6(ref mut a) => a.set_port(new_port),
101 /// Creates a new socket address from the (ip, port) pair.
102 #[stable(feature = "rust1", since = "1.0.0")]
103 pub fn new(ip: Ipv4Addr, port: u16) -> SocketAddrV4 {
105 inner: c::sockaddr_in {
106 sin_family: c::AF_INET as c::sa_family_t,
107 sin_port: hton(port),
108 sin_addr: *ip.as_inner(),
109 .. unsafe { mem::zeroed() }
114 /// Returns the IP address associated with this socket address.
115 #[stable(feature = "rust1", since = "1.0.0")]
116 pub fn ip(&self) -> &Ipv4Addr {
118 &*(&self.inner.sin_addr as *const c::in_addr as *const Ipv4Addr)
122 /// Change the IP address associated with this socket address.
123 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
124 pub fn set_ip(&mut self, new_ip: Ipv4Addr) {
125 self.inner.sin_addr = *new_ip.as_inner()
128 /// Returns the port number associated with this socket address.
129 #[stable(feature = "rust1", since = "1.0.0")]
130 pub fn port(&self) -> u16 {
131 ntoh(self.inner.sin_port)
134 /// Change the port number associated with this socket address.
135 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
136 pub fn set_port(&mut self, new_port: u16) {
137 self.inner.sin_port = hton(new_port);
142 /// Creates a new socket address from the ip/port/flowinfo/scope_id
144 #[stable(feature = "rust1", since = "1.0.0")]
145 pub fn new(ip: Ipv6Addr, port: u16, flowinfo: u32, scope_id: u32)
148 inner: c::sockaddr_in6 {
149 sin6_family: c::AF_INET6 as c::sa_family_t,
150 sin6_port: hton(port),
151 sin6_addr: *ip.as_inner(),
152 sin6_flowinfo: flowinfo,
153 sin6_scope_id: scope_id,
154 .. unsafe { mem::zeroed() }
159 /// Returns the IP address associated with this socket address.
160 #[stable(feature = "rust1", since = "1.0.0")]
161 pub fn ip(&self) -> &Ipv6Addr {
163 &*(&self.inner.sin6_addr as *const c::in6_addr as *const Ipv6Addr)
167 /// Change the IP address associated with this socket address.
168 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
169 pub fn set_ip(&mut self, new_ip: Ipv6Addr) {
170 self.inner.sin6_addr = *new_ip.as_inner()
173 /// Returns the port number associated with this socket address.
174 #[stable(feature = "rust1", since = "1.0.0")]
175 pub fn port(&self) -> u16 {
176 ntoh(self.inner.sin6_port)
179 /// Change the port number associated with this socket address.
180 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
181 pub fn set_port(&mut self, new_port: u16) {
182 self.inner.sin6_port = hton(new_port);
185 /// Returns the flow information associated with this address,
186 /// corresponding to the `sin6_flowinfo` field in C.
187 #[stable(feature = "rust1", since = "1.0.0")]
188 pub fn flowinfo(&self) -> u32 {
189 self.inner.sin6_flowinfo
192 /// Change the flow information associated with this socket address.
193 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
194 pub fn set_flowinfo(&mut self, new_flowinfo: u32) {
195 self.inner.sin6_flowinfo = new_flowinfo;
198 /// Returns the scope ID associated with this address,
199 /// corresponding to the `sin6_scope_id` field in C.
200 #[stable(feature = "rust1", since = "1.0.0")]
201 pub fn scope_id(&self) -> u32 {
202 self.inner.sin6_scope_id
205 /// Change the scope ID associated with this socket address.
206 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
207 pub fn set_scope_id(&mut self, new_scope_id: u32) {
208 self.inner.sin6_scope_id = new_scope_id;
212 impl FromInner<c::sockaddr_in> for SocketAddrV4 {
213 fn from_inner(addr: c::sockaddr_in) -> SocketAddrV4 {
214 SocketAddrV4 { inner: addr }
218 impl FromInner<c::sockaddr_in6> for SocketAddrV6 {
219 fn from_inner(addr: c::sockaddr_in6) -> SocketAddrV6 {
220 SocketAddrV6 { inner: addr }
224 impl<'a> IntoInner<(*const c::sockaddr, c::socklen_t)> for &'a SocketAddr {
225 fn into_inner(self) -> (*const c::sockaddr, c::socklen_t) {
227 SocketAddr::V4(ref a) => {
228 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
230 SocketAddr::V6(ref a) => {
231 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
237 #[stable(feature = "rust1", since = "1.0.0")]
238 impl fmt::Display for SocketAddr {
239 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
241 SocketAddr::V4(ref a) => a.fmt(f),
242 SocketAddr::V6(ref a) => a.fmt(f),
247 #[stable(feature = "rust1", since = "1.0.0")]
248 impl fmt::Display for SocketAddrV4 {
249 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
250 write!(f, "{}:{}", self.ip(), self.port())
254 #[stable(feature = "rust1", since = "1.0.0")]
255 impl fmt::Debug for SocketAddrV4 {
256 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
257 fmt::Display::fmt(self, fmt)
261 #[stable(feature = "rust1", since = "1.0.0")]
262 impl fmt::Display for SocketAddrV6 {
263 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
264 write!(f, "[{}]:{}", self.ip(), self.port())
268 #[stable(feature = "rust1", since = "1.0.0")]
269 impl fmt::Debug for SocketAddrV6 {
270 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
271 fmt::Display::fmt(self, fmt)
275 #[stable(feature = "rust1", since = "1.0.0")]
276 impl Clone for SocketAddrV4 {
277 fn clone(&self) -> SocketAddrV4 { *self }
279 #[stable(feature = "rust1", since = "1.0.0")]
280 impl Clone for SocketAddrV6 {
281 fn clone(&self) -> SocketAddrV6 { *self }
284 #[stable(feature = "rust1", since = "1.0.0")]
285 impl PartialEq for SocketAddrV4 {
286 fn eq(&self, other: &SocketAddrV4) -> bool {
287 self.inner.sin_port == other.inner.sin_port &&
288 self.inner.sin_addr.s_addr == other.inner.sin_addr.s_addr
291 #[stable(feature = "rust1", since = "1.0.0")]
292 impl PartialEq for SocketAddrV6 {
293 fn eq(&self, other: &SocketAddrV6) -> bool {
294 self.inner.sin6_port == other.inner.sin6_port &&
295 self.inner.sin6_addr.s6_addr == other.inner.sin6_addr.s6_addr &&
296 self.inner.sin6_flowinfo == other.inner.sin6_flowinfo &&
297 self.inner.sin6_scope_id == other.inner.sin6_scope_id
300 #[stable(feature = "rust1", since = "1.0.0")]
301 impl Eq for SocketAddrV4 {}
302 #[stable(feature = "rust1", since = "1.0.0")]
303 impl Eq for SocketAddrV6 {}
305 #[stable(feature = "rust1", since = "1.0.0")]
306 impl hash::Hash for SocketAddrV4 {
307 fn hash<H: hash::Hasher>(&self, s: &mut H) {
308 (self.inner.sin_port, self.inner.sin_addr.s_addr).hash(s)
311 #[stable(feature = "rust1", since = "1.0.0")]
312 impl hash::Hash for SocketAddrV6 {
313 fn hash<H: hash::Hasher>(&self, s: &mut H) {
314 (self.inner.sin6_port, &self.inner.sin6_addr.s6_addr,
315 self.inner.sin6_flowinfo, self.inner.sin6_scope_id).hash(s)
319 /// A trait for objects which can be converted or resolved to one or more
320 /// `SocketAddr` values.
322 /// This trait is used for generic address resolution when constructing network
323 /// objects. By default it is implemented for the following types:
325 /// * `SocketAddr`, `SocketAddrV4`, `SocketAddrV6` - `to_socket_addrs` is
326 /// identity function.
328 /// * `(IpvNAddr, u16)` - `to_socket_addrs` constructs `SocketAddr` trivially.
330 /// * `(&str, u16)` - the string should be either a string representation of an
331 /// IP address expected by `FromStr` implementation for `IpvNAddr` or a host
334 /// * `&str` - the string should be either a string representation of a
335 /// `SocketAddr` as expected by its `FromStr` implementation or a string like
336 /// `<host_name>:<port>` pair where `<port>` is a `u16` value.
338 /// This trait allows constructing network objects like `TcpStream` or
339 /// `UdpSocket` easily with values of various types for the bind/connection
340 /// address. It is needed because sometimes one type is more appropriate than
341 /// the other: for simple uses a string like `"localhost:12345"` is much nicer
342 /// than manual construction of the corresponding `SocketAddr`, but sometimes
343 /// `SocketAddr` value is *the* main source of the address, and converting it to
344 /// some other type (e.g. a string) just for it to be converted back to
345 /// `SocketAddr` in constructor methods is pointless.
347 /// Addresses returned by the operating system that are not IP addresses are
348 /// silently ignored.
353 /// use std::net::{SocketAddrV4, TcpStream, UdpSocket, TcpListener, Ipv4Addr};
356 /// let ip = Ipv4Addr::new(127, 0, 0, 1);
357 /// let port = 12345;
359 /// // The following lines are equivalent modulo possible "localhost" name
360 /// // resolution differences
361 /// let tcp_s = TcpStream::connect(SocketAddrV4::new(ip, port));
362 /// let tcp_s = TcpStream::connect((ip, port));
363 /// let tcp_s = TcpStream::connect(("127.0.0.1", port));
364 /// let tcp_s = TcpStream::connect(("localhost", port));
365 /// let tcp_s = TcpStream::connect("127.0.0.1:12345");
366 /// let tcp_s = TcpStream::connect("localhost:12345");
368 /// // TcpListener::bind(), UdpSocket::bind() and UdpSocket::send_to()
369 /// // behave similarly
370 /// let tcp_l = TcpListener::bind("localhost:12345");
372 /// let mut udp_s = UdpSocket::bind(("127.0.0.1", port)).unwrap();
373 /// udp_s.send_to(&[7], (ip, 23451)).unwrap();
376 #[stable(feature = "rust1", since = "1.0.0")]
377 pub trait ToSocketAddrs {
378 /// Returned iterator over socket addresses which this type may correspond
380 #[stable(feature = "rust1", since = "1.0.0")]
381 type Iter: Iterator<Item=SocketAddr>;
383 /// Converts this object to an iterator of resolved `SocketAddr`s.
385 /// The returned iterator may not actually yield any values depending on the
386 /// outcome of any resolution performed.
388 /// Note that this function may block the current thread while resolution is
393 /// Any errors encountered during resolution will be returned as an `Err`.
394 #[stable(feature = "rust1", since = "1.0.0")]
395 fn to_socket_addrs(&self) -> io::Result<Self::Iter>;
398 #[stable(feature = "rust1", since = "1.0.0")]
399 impl ToSocketAddrs for SocketAddr {
400 type Iter = option::IntoIter<SocketAddr>;
401 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
402 Ok(Some(*self).into_iter())
406 #[stable(feature = "rust1", since = "1.0.0")]
407 impl ToSocketAddrs for SocketAddrV4 {
408 type Iter = option::IntoIter<SocketAddr>;
409 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
410 SocketAddr::V4(*self).to_socket_addrs()
414 #[stable(feature = "rust1", since = "1.0.0")]
415 impl ToSocketAddrs for SocketAddrV6 {
416 type Iter = option::IntoIter<SocketAddr>;
417 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
418 SocketAddr::V6(*self).to_socket_addrs()
422 #[stable(feature = "rust1", since = "1.0.0")]
423 impl ToSocketAddrs for (IpAddr, u16) {
424 type Iter = option::IntoIter<SocketAddr>;
425 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
426 let (ip, port) = *self;
428 IpAddr::V4(ref a) => (*a, port).to_socket_addrs(),
429 IpAddr::V6(ref a) => (*a, port).to_socket_addrs(),
434 #[stable(feature = "rust1", since = "1.0.0")]
435 impl ToSocketAddrs for (Ipv4Addr, u16) {
436 type Iter = option::IntoIter<SocketAddr>;
437 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
438 let (ip, port) = *self;
439 SocketAddrV4::new(ip, port).to_socket_addrs()
443 #[stable(feature = "rust1", since = "1.0.0")]
444 impl ToSocketAddrs for (Ipv6Addr, u16) {
445 type Iter = option::IntoIter<SocketAddr>;
446 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
447 let (ip, port) = *self;
448 SocketAddrV6::new(ip, port, 0, 0).to_socket_addrs()
452 fn resolve_socket_addr(s: &str, p: u16) -> io::Result<vec::IntoIter<SocketAddr>> {
453 let ips = lookup_host(s)?;
454 let v: Vec<_> = ips.map(|mut a| { a.set_port(p); a }).collect();
458 #[stable(feature = "rust1", since = "1.0.0")]
459 impl<'a> ToSocketAddrs for (&'a str, u16) {
460 type Iter = vec::IntoIter<SocketAddr>;
461 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
462 let (host, port) = *self;
464 // try to parse the host as a regular IP address first
465 if let Ok(addr) = host.parse::<Ipv4Addr>() {
466 let addr = SocketAddrV4::new(addr, port);
467 return Ok(vec![SocketAddr::V4(addr)].into_iter())
469 if let Ok(addr) = host.parse::<Ipv6Addr>() {
470 let addr = SocketAddrV6::new(addr, port, 0, 0);
471 return Ok(vec![SocketAddr::V6(addr)].into_iter())
474 resolve_socket_addr(host, port)
478 // accepts strings like 'localhost:12345'
479 #[stable(feature = "rust1", since = "1.0.0")]
480 impl ToSocketAddrs for str {
481 type Iter = vec::IntoIter<SocketAddr>;
482 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
483 // try to parse as a regular SocketAddr first
484 if let Some(addr) = self.parse().ok() {
485 return Ok(vec![addr].into_iter());
488 macro_rules! try_opt {
489 ($e:expr, $msg:expr) => (
492 None => return Err(io::Error::new(io::ErrorKind::InvalidInput,
498 // split the string by ':' and convert the second part to u16
499 let mut parts_iter = self.rsplitn(2, ':');
500 let port_str = try_opt!(parts_iter.next(), "invalid socket address");
501 let host = try_opt!(parts_iter.next(), "invalid socket address");
502 let port: u16 = try_opt!(port_str.parse().ok(), "invalid port value");
503 resolve_socket_addr(host, port)
507 #[stable(feature = "slice_to_socket_addrs", since = "1.8.0")]
508 impl<'a> ToSocketAddrs for &'a [SocketAddr] {
509 type Iter = iter::Cloned<slice::Iter<'a, SocketAddr>>;
511 fn to_socket_addrs(&self) -> io::Result<Self::Iter> {
512 Ok(self.iter().cloned())
516 #[stable(feature = "rust1", since = "1.0.0")]
517 impl<'a, T: ToSocketAddrs + ?Sized> ToSocketAddrs for &'a T {
519 fn to_socket_addrs(&self) -> io::Result<T::Iter> {
520 (**self).to_socket_addrs()
528 use net::test::{tsa, sa6, sa4};
531 fn to_socket_addr_ipaddr_u16() {
532 let a = Ipv4Addr::new(77, 88, 21, 11);
534 let e = SocketAddr::V4(SocketAddrV4::new(a, p));
535 assert_eq!(Ok(vec![e]), tsa((a, p)));
539 fn to_socket_addr_str_u16() {
540 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
541 assert_eq!(Ok(vec![a]), tsa(("77.88.21.11", 24352)));
543 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
544 assert_eq!(Ok(vec![a]), tsa(("2a02:6b8:0:1::1", 53)));
546 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
547 assert!(tsa(("localhost", 23924)).unwrap().contains(&a));
551 fn to_socket_addr_str() {
552 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
553 assert_eq!(Ok(vec![a]), tsa("77.88.21.11:24352"));
555 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
556 assert_eq!(Ok(vec![a]), tsa("[2a02:6b8:0:1::1]:53"));
558 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
559 assert!(tsa("localhost:23924").unwrap().contains(&a));
562 // FIXME: figure out why this fails on openbsd and bitrig and fix it
564 #[cfg(not(any(windows, target_os = "openbsd", target_os = "bitrig")))]
565 fn to_socket_addr_str_bad() {
566 assert!(tsa("1200::AB00:1234::2552:7777:1313:34300").is_err());
571 fn ip4(low: u8) -> Ipv4Addr { Ipv4Addr::new(77, 88, 21, low) }
572 fn ip6(low: u16) -> Ipv6Addr { Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, low) }
574 let mut v4 = SocketAddrV4::new(ip4(11), 80);
575 assert_eq!(v4.ip(), &ip4(11));
577 assert_eq!(v4.ip(), &ip4(12));
579 let mut addr = SocketAddr::V4(v4);
580 assert_eq!(addr.ip(), IpAddr::V4(ip4(12)));
581 addr.set_ip(IpAddr::V4(ip4(13)));
582 assert_eq!(addr.ip(), IpAddr::V4(ip4(13)));
583 addr.set_ip(IpAddr::V6(ip6(14)));
584 assert_eq!(addr.ip(), IpAddr::V6(ip6(14)));
586 let mut v6 = SocketAddrV6::new(ip6(1), 80, 0, 0);
587 assert_eq!(v6.ip(), &ip6(1));
589 assert_eq!(v6.ip(), &ip6(2));
591 let mut addr = SocketAddr::V6(v6);
592 assert_eq!(addr.ip(), IpAddr::V6(ip6(2)));
593 addr.set_ip(IpAddr::V6(ip6(3)));
594 assert_eq!(addr.ip(), IpAddr::V6(ip6(3)));
595 addr.set_ip(IpAddr::V4(ip4(4)));
596 assert_eq!(addr.ip(), IpAddr::V4(ip4(4)));
601 let mut v4 = SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80);
602 assert_eq!(v4.port(), 80);
604 assert_eq!(v4.port(), 443);
606 let mut addr = SocketAddr::V4(v4);
607 assert_eq!(addr.port(), 443);
609 assert_eq!(addr.port(), 8080);
611 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 0);
612 assert_eq!(v6.port(), 80);
614 assert_eq!(v6.port(), 443);
616 let mut addr = SocketAddr::V6(v6);
617 assert_eq!(addr.port(), 443);
619 assert_eq!(addr.port(), 8080);
624 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 10, 0);
625 assert_eq!(v6.flowinfo(), 10);
627 assert_eq!(v6.flowinfo(), 20);
632 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 10);
633 assert_eq!(v6.scope_id(), 10);
635 assert_eq!(v6.scope_id(), 20);