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Add missing examples for Ipv6Addr #37859

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Dec 4, 2016
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Add missing examples for Ipv6Addr #37859

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1a91fc6
Add missing examples for Ipv6Addr
GuillaumeGomez Nov 18, 2016
a5049f7
Add ::1 example in IPv6 to IPv4 conversion
GuillaumeGomez Nov 22, 2016
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158 changes: 158 additions & 0 deletions src/libstd/net/ip.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -522,6 +522,14 @@ impl Ipv6Addr {
/// Creates a new IPv6 address from eight 16-bit segments.
///
/// The result will represent the IP address a:b:c:d:e:f:g:h.
///
/// # Examples
///
/// ```
/// use std::net::Ipv6Addr;
///
/// let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn new(a: u16, b: u16, c: u16, d: u16, e: u16, f: u16, g: u16,
h: u16) -> Ipv6Addr {
Expand All @@ -538,6 +546,15 @@ impl Ipv6Addr {
}

/// Returns the eight 16-bit segments that make up this address.
///
/// # Examples
///
/// ```
/// use std::net::Ipv6Addr;
///
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).segments(),
/// [0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn segments(&self) -> [u16; 8] {
let arr = &self.inner.s6_addr;
Expand All @@ -558,6 +575,15 @@ impl Ipv6Addr {
/// This property is defined in [RFC 4291].
///
/// [RFC 4291]: https://tools.ietf.org/html/rfc4291
///
/// # Examples
///
/// ```
/// use std::net::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);
/// ```
#[stable(since = "1.7.0", feature = "ip_17")]
pub fn is_unspecified(&self) -> bool {
self.segments() == [0, 0, 0, 0, 0, 0, 0, 0]
Expand All @@ -568,6 +594,15 @@ impl Ipv6Addr {
/// This property is defined in [RFC 4291].
///
/// [RFC 4291]: https://tools.ietf.org/html/rfc4291
///
/// # Examples
///
/// ```
/// use std::net::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);
/// ```
#[stable(since = "1.7.0", feature = "ip_17")]
pub fn is_loopback(&self) -> bool {
self.segments() == [0, 0, 0, 0, 0, 0, 0, 1]
Expand All @@ -580,6 +615,20 @@ impl Ipv6Addr {
/// - the loopback address
/// - link-local, site-local, and unique local unicast addresses
/// - interface-, link-, realm-, admin- and site-local multicast addresses
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_global(), true);
/// 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 {
match self.multicast_scope() {
Some(Ipv6MulticastScope::Global) => true,
Expand All @@ -593,6 +642,20 @@ impl Ipv6Addr {
/// This property is defined in [RFC 4193].
///
/// [RFC 4193]: https://tools.ietf.org/html/rfc4193
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// 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 {
(self.segments()[0] & 0xfe00) == 0xfc00
}
Expand All @@ -602,12 +665,40 @@ impl Ipv6Addr {
/// This property is defined in [RFC 4291].
///
/// [RFC 4291]: https://tools.ietf.org/html/rfc4291
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_link_local(),
/// false);
/// assert_eq!(Ipv6Addr::new(0xfe8a, 0, 0, 0, 0, 0, 0, 0).is_unicast_link_local(), true);
/// }
/// ```
pub fn is_unicast_link_local(&self) -> bool {
(self.segments()[0] & 0xffc0) == 0xfe80
}

/// Returns true if this is a deprecated unicast site-local address
/// (fec0::/10).
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_site_local(),
/// false);
/// assert_eq!(Ipv6Addr::new(0xfec2, 0, 0, 0, 0, 0, 0, 0).is_unicast_site_local(), true);
/// }
/// ```
pub fn is_unicast_site_local(&self) -> bool {
(self.segments()[0] & 0xffc0) == 0xfec0
}
Expand All @@ -618,6 +709,20 @@ impl Ipv6Addr {
/// This property is defined in [RFC 3849].
///
/// [RFC 3849]: https://tools.ietf.org/html/rfc3849
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// 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 {
(self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8)
}
Expand All @@ -632,6 +737,20 @@ impl Ipv6Addr {
/// - unique local addresses
/// - the unspecified address
/// - the address range reserved for documentation
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::Ipv6Addr;
///
/// fn main() {
/// 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 {
!self.is_multicast()
&& !self.is_loopback() && !self.is_unicast_link_local()
Expand All @@ -640,6 +759,20 @@ impl Ipv6Addr {
}

/// Returns the address's multicast scope if the address is multicast.
///
/// # Examples
///
/// ```
/// #![feature(ip)]
///
/// use std::net::{Ipv6Addr, Ipv6MulticastScope};
///
/// fn main() {
/// assert_eq!(Ipv6Addr::new(0xff0e, 0, 0, 0, 0, 0, 0, 0).multicast_scope(),
/// Some(Ipv6MulticastScope::Global));
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).multicast_scope(), None);
/// }
/// ```
pub fn multicast_scope(&self) -> Option<Ipv6MulticastScope> {
if self.is_multicast() {
match self.segments()[0] & 0x000f {
Expand All @@ -662,6 +795,14 @@ impl Ipv6Addr {
/// This property is defined by [RFC 4291].
///
/// [RFC 4291]: https://tools.ietf.org/html/rfc4291
/// # Examples
///
/// ```
/// use std::net::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);
/// ```
#[stable(since = "1.7.0", feature = "ip_17")]
pub fn is_multicast(&self) -> bool {
(self.segments()[0] & 0xff00) == 0xff00
Expand All @@ -671,6 +812,16 @@ impl Ipv6Addr {
/// neither IPv4-compatible or IPv4-mapped.
///
/// ::a.b.c.d and ::ffff:a.b.c.d become a.b.c.d
///
/// ```
/// use std::net::{Ipv4Addr, Ipv6Addr};
///
/// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).to_ipv4(), None);
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).to_ipv4(),
/// Some(Ipv4Addr::new(192, 10, 2, 255)));
/// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4(),
/// Some(Ipv4Addr::new(0, 0, 0, 1)));
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn to_ipv4(&self) -> Option<Ipv4Addr> {
match self.segments() {
Expand All @@ -683,6 +834,13 @@ impl Ipv6Addr {
}

/// Returns the sixteen eight-bit integers the IPv6 address consists of.
///
/// ```
/// use std::net::Ipv6Addr;
///
/// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).octets(),
/// [255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
/// ```
#[stable(feature = "ipv6_to_octets", since = "1.12.0")]
pub fn octets(&self) -> [u8; 16] {
self.inner.s6_addr
Expand Down