diff options
Diffstat (limited to 'library/std/src/net')
| -rw-r--r-- | library/std/src/net/ip.rs | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/library/std/src/net/ip.rs b/library/std/src/net/ip.rs index 10676b49d43..341a112df71 100644 --- a/library/std/src/net/ip.rs +++ b/library/std/src/net/ip.rs @@ -1102,8 +1102,9 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).segments(), /// [0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff]); /// ``` + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] #[stable(feature = "rust1", since = "1.0.0")] - pub fn segments(&self) -> [u16; 8] { + pub const fn segments(&self) -> [u16; 8] { // All elements in `s6_addr` must be big endian. // SAFETY: `[u8; 16]` is always safe to transmute to `[u16; 8]`. let [a, b, c, d, e, f, g, h] = unsafe { transmute::<_, [u16; 8]>(self.inner.s6_addr) }; @@ -1135,9 +1136,10 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unspecified(), false); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0).is_unspecified(), true); /// ``` + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] #[stable(since = "1.7.0", feature = "ip_17")] - pub fn is_unspecified(&self) -> bool { - self.segments() == [0, 0, 0, 0, 0, 0, 0, 0] + pub const fn is_unspecified(&self) -> bool { + u128::from_be_bytes(self.octets()) == u128::from_be_bytes(Ipv6Addr::UNSPECIFIED.octets()) } /// Returns [`true`] if this is a loopback address (::1). @@ -1155,9 +1157,10 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_loopback(), false); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_loopback(), true); /// ``` + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] #[stable(since = "1.7.0", feature = "ip_17")] - pub fn is_loopback(&self) -> bool { - self.segments() == [0, 0, 0, 0, 0, 0, 0, 1] + pub const fn is_loopback(&self) -> bool { + u128::from_be_bytes(self.octets()) == u128::from_be_bytes(Ipv6Addr::LOCALHOST.octets()) } /// Returns [`true`] if the address appears to be globally routable. @@ -1182,7 +1185,8 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_global(), false); /// assert_eq!(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1).is_global(), true); /// ``` - pub fn is_global(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_global(&self) -> bool { match self.multicast_scope() { Some(Ipv6MulticastScope::Global) => true, None => self.is_unicast_global(), @@ -1208,7 +1212,8 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unique_local(), false); /// assert_eq!(Ipv6Addr::new(0xfc02, 0, 0, 0, 0, 0, 0, 0).is_unique_local(), true); /// ``` - pub fn is_unique_local(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_unique_local(&self) -> bool { (self.segments()[0] & 0xfe00) == 0xfc00 } @@ -1263,7 +1268,8 @@ impl Ipv6Addr { /// [IETF RFC 4291]: https://tools.ietf.org/html/rfc4291 /// [IETF RFC 4291 section 2.5.6]: https://tools.ietf.org/html/rfc4291#section-2.5.6 /// [RFC 4291 errata 4406]: https://www.rfc-editor.org/errata/eid4406 - pub fn is_unicast_link_local_strict(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_unicast_link_local_strict(&self) -> bool { (self.segments()[0] & 0xffff) == 0xfe80 && (self.segments()[1] & 0xffff) == 0 && (self.segments()[2] & 0xffff) == 0 @@ -1320,7 +1326,8 @@ impl Ipv6Addr { /// /// [IETF RFC 4291 section 2.4]: https://tools.ietf.org/html/rfc4291#section-2.4 /// [RFC 4291 errata 4406]: https://www.rfc-editor.org/errata/eid4406 - pub fn is_unicast_link_local(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_unicast_link_local(&self) -> bool { (self.segments()[0] & 0xffc0) == 0xfe80 } @@ -1359,7 +1366,8 @@ impl Ipv6Addr { /// addresses. /// /// [RFC 3879]: https://tools.ietf.org/html/rfc3879 - pub fn is_unicast_site_local(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_unicast_site_local(&self) -> bool { (self.segments()[0] & 0xffc0) == 0xfec0 } @@ -1381,7 +1389,8 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_documentation(), false); /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_documentation(), true); /// ``` - pub fn is_documentation(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_documentation(&self) -> bool { (self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8) } @@ -1416,7 +1425,8 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast_global(), false); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_global(), true); /// ``` - pub fn is_unicast_global(&self) -> bool { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn is_unicast_global(&self) -> bool { !self.is_multicast() && !self.is_loopback() && !self.is_unicast_link_local() @@ -1440,7 +1450,8 @@ impl Ipv6Addr { /// ); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).multicast_scope(), None); /// ``` - pub fn multicast_scope(&self) -> Option<Ipv6MulticastScope> { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn multicast_scope(&self) -> Option<Ipv6MulticastScope> { if self.is_multicast() { match self.segments()[0] & 0x000f { 1 => Some(Ipv6MulticastScope::InterfaceLocal), @@ -1472,8 +1483,9 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).is_multicast(), true); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_multicast(), false); /// ``` + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] #[stable(since = "1.7.0", feature = "ip_17")] - pub fn is_multicast(&self) -> bool { + pub const fn is_multicast(&self) -> bool { (self.segments()[0] & 0xff00) == 0xff00 } @@ -1498,7 +1510,8 @@ impl Ipv6Addr { /// Some(Ipv4Addr::new(192, 10, 2, 255))); /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4_mapped(), None); /// ``` - pub fn to_ipv4_mapped(&self) -> Option<Ipv4Addr> { + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] + pub const fn to_ipv4_mapped(&self) -> Option<Ipv4Addr> { match self.octets() { [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, a, b, c, d] => { Some(Ipv4Addr::new(a, b, c, d)) @@ -1525,8 +1538,9 @@ impl Ipv6Addr { /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4(), /// Some(Ipv4Addr::new(0, 0, 0, 1))); /// ``` + #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")] #[stable(feature = "rust1", since = "1.0.0")] - pub fn to_ipv4(&self) -> Option<Ipv4Addr> { + pub const fn to_ipv4(&self) -> Option<Ipv4Addr> { if let [0, 0, 0, 0, 0, 0 | 0xffff, ab, cd] = self.segments() { let [a, b] = ab.to_be_bytes(); let [c, d] = cd.to_be_bytes(); |