Struct libp2p_core::Multiaddr

pub struct Multiaddr { /* fields omitted */ }

Representation of a Multiaddr.

Implementations

impl Multiaddr

pub fn empty() -> Multiaddr

Create a new, empty multiaddress.

pub fn with_capacity(n: usize) -> Multiaddr

Create a new, empty multiaddress with the given capacity.

pub fn len(&self) -> usize

Return the length in bytes of this multiaddress.

pub fn is_empty(&self) -> bool

Returns true if the length of this multiaddress is 0.

pub fn to_vec(&self) -> Vec<u8, Global>

Return a copy of this Multiaddr's byte representation.

pub fn push(&mut self, p: Protocol<'_>)

Adds an already-parsed address component to the end of this multiaddr.

Examples

use parity_multiaddr::{Multiaddr, Protocol};

let mut address: Multiaddr = "/ip4/127.0.0.1".parse().unwrap();
address.push(Protocol::Tcp(10000));
assert_eq!(address, "/ip4/127.0.0.1/tcp/10000".parse().unwrap());

pub fn pop<'a>(&mut self) -> Option<Protocol<'a>>

Pops the last Protocol of this multiaddr, or None if the multiaddr is empty.

use parity_multiaddr::{Multiaddr, Protocol};

let mut address: Multiaddr = "/ip4/127.0.0.1/udt/sctp/5678".parse().unwrap();

assert_eq!(address.pop().unwrap(), Protocol::Sctp(5678));
assert_eq!(address.pop().unwrap(), Protocol::Udt);

pub fn with(self, p: Protocol<'_>) -> Multiaddr

Like Multiaddr::push but consumes self.

pub fn iter(&self) -> Iter<'_>

Returns the components of this multiaddress.

Example

use std::net::Ipv4Addr;
use parity_multiaddr::{Multiaddr, Protocol};

let address: Multiaddr = "/ip4/127.0.0.1/udt/sctp/5678".parse().unwrap();

let components = address.iter().collect::<Vec<_>>();
assert_eq!(components[0], Protocol::Ip4(Ipv4Addr::new(127, 0, 0, 1)));
assert_eq!(components[1], Protocol::Udt);
assert_eq!(components[2], Protocol::Sctp(5678));

pub fn replace<'a, F>(&self, at: usize, by: F) -> Option<Multiaddr> where
    F: FnOnce(&Protocol<'_>) -> Option<Protocol<'a>>, 

Replace a Protocol at some position in this Multiaddr.

The parameter at denotes the index of the protocol at which the function by will be applied to the current protocol, returning an optional replacement.

If at is out of bounds or by does not yield a replacement value, None will be returned. Otherwise a copy of this Multiaddr with the updated Protocol at position at will be returned.

Trait Implementations

impl AsRef<[u8]> for Multiaddr

pub fn as_ref(&self) -> &[u8]

Performs the conversion.

impl Clone for Multiaddr

pub fn clone(&self) -> Multiaddr

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Multiaddr

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Multiaddr

pub fn deserialize<D>(
    deserializer: D
) -> Result<Multiaddr, <D as Deserializer<'de>>::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for Multiaddr

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Convert a Multiaddr to a string

Example

use parity_multiaddr::Multiaddr;

let address: Multiaddr = "/ip4/127.0.0.1/udt".parse().unwrap();
assert_eq!(address.to_string(), "/ip4/127.0.0.1/udt");

impl Eq for Multiaddr

impl From<IpAddr> for Multiaddr

pub fn from(v: IpAddr) -> Multiaddr

Performs the conversion.

impl From<Ipv4Addr> for Multiaddr

pub fn from(v: Ipv4Addr) -> Multiaddr

Performs the conversion.

impl From<Ipv6Addr> for Multiaddr

pub fn from(v: Ipv6Addr) -> Multiaddr

Performs the conversion.

impl<'a> From<Protocol<'a>> for Multiaddr

pub fn from(p: Protocol<'a>) -> Multiaddr

Performs the conversion.

impl<'a> FromIterator<Protocol<'a>> for Multiaddr

pub fn from_iter<T>(iter: T) -> Multiaddr where
    T: IntoIterator<Item = Protocol<'a>>, 

Creates a value from an iterator.

impl FromStr for Multiaddr

type Err = Error

The associated error which can be returned from parsing.

pub fn from_str(input: &str) -> Result<Multiaddr, Error>

Parses a string s to return a value of this type.

impl Hash for Multiaddr

pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'a> IntoIterator for &'a Multiaddr

type Item = Protocol<'a>

The type of the elements being iterated over.

type IntoIter = Iter<'a>

Which kind of iterator are we turning this into?

pub fn into_iter(self) -> Iter<'a>

Creates an iterator from a value.

impl Ord for Multiaddr

pub fn cmp(&self, other: &Multiaddr) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Multiaddr> for Multiaddr

pub fn eq(&self, other: &Multiaddr) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Multiaddr) -> bool

This method tests for !=.

impl PartialOrd<Multiaddr> for Multiaddr

pub fn partial_cmp(&self, other: &Multiaddr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Multiaddr

pub fn serialize<S>(
    &self,
    serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for Multiaddr

impl StructuralPartialEq for Multiaddr

impl<'a> TryFrom<&'a str> for Multiaddr

type Error = Error

The type returned in the event of a conversion error.

pub fn try_from(s: &'a str) -> Result<Multiaddr, Error>

Performs the conversion.

impl TryFrom<String> for Multiaddr

type Error = Error

The type returned in the event of a conversion error.

pub fn try_from(s: String) -> Result<Multiaddr, Error>

Performs the conversion.

impl TryFrom<Vec<u8, Global>> for Multiaddr

type Error = Error

The type returned in the event of a conversion error.

pub fn try_from(v: Vec<u8, Global>) -> Result<Multiaddr, Error>

Performs the conversion.