Struct H256

pub struct H256(/* private fields */);

Type that holds 32 bytes of data. Data is kept on the heap to keep wasm size low and avoid copies.

Implementations

impl H256

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

impl H256

pub fn from_slice(slice: &[u8]) -> Self

impl H256

pub fn zero() -> Self

Returns a new zero-initialized fixed hash.

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

Extracts a byte slice containing the entire fixed hash.

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

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

pub fn is_zero(&self) -> bool

True if all 32 bytes of the hash are zero.

Trait Implementations

impl AsMut<[u8]> for H256

fn as_mut(&mut self) -> &mut [u8]

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

impl AsRef<[u8]> for H256

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

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

impl Clone for H256

fn clone(&self) -> H256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for H256

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

Formats the value using the given formatter.

impl<'a> From<&'a [u8; 32]> for H256

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

Constructs a hash type from the given reference to the bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl<'a> From<&'a VMAddress> for &'a H256

fn from(address: &'a VMAddress) -> Self

Converts to this type from the input type.

impl<'a> From<&'a mut [u8; 32]> for H256

fn from(bytes: &'a mut [u8; 32]) -> Self

Constructs a hash type from the given reference to the mutable bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<[u8; 32]> for H256

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

Constructs a hash type from the given bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<Box<[u8; 32]>> for H256

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

Converts to this type from the input type.

impl From<H256> for [u8; 32]

fn from(s: H256) -> Self

Converts to this type from the input type.

impl From<H256> for VMAddress

fn from(hash: H256) -> Self

Converts to this type from the input type.

impl From<VMAddress> for H256

fn from(address: VMAddress) -> Self

Converts to this type from the input type.

impl Hash for H256

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 H256

fn eq(&self, other: &H256) -> 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 Eq for H256

impl StructuralPartialEq for H256