Struct libipld::Link

pub struct Link<T> { /* private fields */ }

Typed cid.

Implementations

impl<T> Link<T>

pub fn new(cid: Cid<64>) -> Link<T>

Creates a new Link.

pub fn cid(&self) -> &Cid<64>

Returns a reference to the cid.

Methods from Deref<Target = Cid<64>>

pub fn version(&self) -> Version

Returns the cid version.

pub fn codec(&self) -> u64

Returns the cid codec.

pub fn hash(&self) -> &Multihash<S>

Returns the cid multihash.

pub fn write_bytes<W>(&self, w: W) -> Result<usize, Error>where
    W: Write,

Writes the bytes to a byte stream, returns the number of bytes written.

pub fn encoded_len(&self) -> usize

Returns the length in bytes needed to encode this cid into bytes.

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

Returns the encoded bytes of the Cid.

pub fn to_string_of_base(&self, base: Base) -> Result<String, Error>

Convert CID into a multibase encoded string

Example

use cid::Cid;
use multibase::Base;
use multihash::{Code, MultihashDigest};

const RAW: u64 = 0x55;

let cid = Cid::new_v1(RAW, Code::Sha2_256.digest(b"foo"));
let encoded = cid.to_string_of_base(Base::Base64).unwrap();
assert_eq!(encoded, "mAVUSICwmtGto/8aP+ZtFPB0wQTQTQi1wZIO/oPmKXohiZueu");

Trait Implementations

impl<T> AsRef<Cid<64>> for Link<T>

fn as_ref(&self) -> &Cid<64>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Clone for Link<T>

fn clone(&self) -> Link<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Link<T>where
    T: Debug,

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

Formats the value using the given formatter.

impl<C, T> Decode<C> for Link<T>where
    C: Codec,
    Cid<64>: Decode<C>,

fn decode<R>(c: C, r: &mut R) -> Result<Link<T>, Error>where
    R: Read + Seek,

Decode from an impl Read.

impl<T> Deref for Link<T>

type Target = Cid<64>

The resulting type after dereferencing.

fn deref(&self) -> &<Link<T> as Deref>::Target

Dereferences the value.

impl<T> Display for Link<T>

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

Formats the value using the given formatter.

impl<C, T> Encode<C> for Link<T>where
    C: Codec,
    Cid<64>: Encode<C>,

fn encode<W>(&self, c: C, w: &mut W) -> Result<(), Error>where
    W: Write,

Encodes into a impl Write.

impl<T> From<Cid<64>> for Link<T>

fn from(cid: Cid<64>) -> Link<T>

Converts to this type from the input type.

impl<T> Hash for Link<T>

fn hash<H>(&self, hasher: &mut H)where
    H: Hasher,

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<T> Ord for Link<T>

fn cmp(&self, other: &Link<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<T> PartialEq<Link<T>> for Link<T>

fn eq(&self, other: &Link<T>) -> bool

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> PartialOrd<Link<T>> for Link<T>

fn partial_cmp(&self, other: &Link<T>) -> Option<Ordering>

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

fn lt(&self, other: &Rhs) -> bool

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

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

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

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<T> Copy for Link<T>

impl<T> Eq for Link<T>