Struct CryptoHash 

pub struct CryptoHash(/* private fields */);

A 32-byte SHA-256 hash used for block hashes, transaction hashes, etc.

Implementations

impl CryptoHash

pub const ZERO: Self

The zero hash (32 zero bytes).

pub fn hash(data: &[u8]) -> Self

Hash the given data with SHA-256.

pub const fn from_bytes(bytes: [u8; 32]) -> Self

Create from raw 32 bytes.

pub const fn as_bytes(&self) -> &[u8; 32]

Get the raw 32 bytes.

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

Convert to a Vec<u8>.

pub fn is_zero(&self) -> bool

Check if this is the zero hash.

Trait Implementations

impl AsRef<[u8]> for CryptoHash

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

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

impl BorshDeserialize for CryptoHash

fn deserialize_reader<R: Read>(reader: &mut R) -> Result<Self>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for CryptoHash

fn serialize<W: Write>(&self, writer: &mut W) -> Result<()>

impl Clone for CryptoHash

fn clone(&self) -> CryptoHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CryptoHash

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

Formats the value using the given formatter.

impl Default for CryptoHash

fn default() -> CryptoHash

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CryptoHash

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for CryptoHash

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

Formats the value using the given formatter.

impl From<[u8; 32]> for CryptoHash

fn from(bytes: [u8; 32]) -> Self

Converts to this type from the input type.

impl From<CryptoHash> for BlockReference

fn from(hash: CryptoHash) -> Self

Converts to this type from the input type.

impl FromStr for CryptoHash

type Err = ParseHashError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for CryptoHash

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

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 PartialEq for CryptoHash

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for CryptoHash

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl TryFrom<&[u8]> for CryptoHash

type Error = ParseHashError

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&str> for CryptoHash

type Error = ParseHashError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for CryptoHash

impl Eq for CryptoHash

impl StructuralPartialEq for CryptoHash