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Derive Ord, PartialOrd and Hash for SocketAddr* #116714

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51 changes: 2 additions & 49 deletions library/core/src/net/socket_addr.rs
Original file line number Diff line number Diff line change
@@ -1,6 +1,4 @@
use crate::cmp::Ordering;
use crate::fmt::{self, Write};
use crate::hash;
use crate::net::{IpAddr, Ipv4Addr, Ipv6Addr};

use super::display_buffer::DisplayBuffer;
Expand Down Expand Up @@ -63,7 +61,7 @@ pub enum SocketAddr {
/// assert_eq!(socket.ip(), &Ipv4Addr::new(127, 0, 0, 1));
/// assert_eq!(socket.port(), 8080);
/// ```
#[derive(Copy, Clone, Eq, PartialEq)]
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct SocketAddrV4 {
ip: Ipv4Addr,
Expand Down Expand Up @@ -96,7 +94,7 @@ pub struct SocketAddrV4 {
/// assert_eq!(socket.ip(), &Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 1));
/// assert_eq!(socket.port(), 8080);
/// ```
#[derive(Copy, Clone, Eq, PartialEq)]
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[stable(feature = "rust1", since = "1.0.0")]
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pub struct SocketAddrV6 {
ip: Ipv6Addr,
Expand Down Expand Up @@ -644,48 +642,3 @@ impl fmt::Debug for SocketAddrV6 {
fmt::Display::fmt(self, fmt)
}
}

#[stable(feature = "socketaddr_ordering", since = "1.45.0")]
impl PartialOrd for SocketAddrV4 {
#[inline]
fn partial_cmp(&self, other: &SocketAddrV4) -> Option<Ordering> {
Some(self.cmp(other))
}
}

#[stable(feature = "socketaddr_ordering", since = "1.45.0")]
impl PartialOrd for SocketAddrV6 {
#[inline]
fn partial_cmp(&self, other: &SocketAddrV6) -> Option<Ordering> {
Some(self.cmp(other))
}
}

#[stable(feature = "socketaddr_ordering", since = "1.45.0")]
impl Ord for SocketAddrV4 {
#[inline]
fn cmp(&self, other: &SocketAddrV4) -> Ordering {
self.ip().cmp(other.ip()).then(self.port().cmp(&other.port()))
}
}

#[stable(feature = "socketaddr_ordering", since = "1.45.0")]
impl Ord for SocketAddrV6 {
#[inline]
fn cmp(&self, other: &SocketAddrV6) -> Ordering {
self.ip().cmp(other.ip()).then(self.port().cmp(&other.port()))
}
}

#[stable(feature = "rust1", since = "1.0.0")]
impl hash::Hash for SocketAddrV4 {
fn hash<H: hash::Hasher>(&self, s: &mut H) {
(self.port, self.ip).hash(s)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl hash::Hash for SocketAddrV6 {
fn hash<H: hash::Hasher>(&self, s: &mut H) {
(self.port, &self.ip, self.flowinfo, self.scope_id).hash(s)
}
}
11 changes: 11 additions & 0 deletions library/core/tests/net/socket_addr.rs
Original file line number Diff line number Diff line change
Expand Up @@ -199,6 +199,9 @@ fn compare() {
let v6_1 = "[2001:db8:f00::1002]:23456".parse::<SocketAddrV6>().unwrap();
let v6_2 = "[2001:db8:f00::2001]:12345".parse::<SocketAddrV6>().unwrap();
let v6_3 = "[2001:db8:f00::2001]:23456".parse::<SocketAddrV6>().unwrap();
let v6_4 = "[2001:db8:f00::2001%42]:23456".parse::<SocketAddrV6>().unwrap();
let mut v6_5 = "[2001:db8:f00::2001]:23456".parse::<SocketAddrV6>().unwrap();
v6_5.set_flowinfo(17);

// equality
assert_eq!(v4_1, v4_1);
Expand All @@ -207,6 +210,8 @@ fn compare() {
assert_eq!(SocketAddr::V6(v6_1), SocketAddr::V6(v6_1));
assert!(v4_1 != v4_2);
assert!(v6_1 != v6_2);
assert!(v6_3 != v6_4);
assert!(v6_3 != v6_5);

// compare different addresses
assert!(v4_1 < v4_2);
Expand All @@ -226,6 +231,12 @@ fn compare() {
assert!(v4_3 > v4_1);
assert!(v6_3 > v6_1);

// compare the same address with different scope_id
assert!(v6_3 < v6_4);

// compare the same address with different flowinfo
assert!(v6_3 < v6_5);

// compare with an inferred right-hand side
assert_eq!(v4_1, "224.120.45.1:23456".parse().unwrap());
assert_eq!(v6_1, "[2001:db8:f00::1002]:23456".parse().unwrap());
Expand Down
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