Struct H256 

#[repr(transparent)]
pub struct H256(pub [u8; 32]);

A SHA256 hash.

Tuple Fields

0: [u8; 32]

Implementations

impl H256

pub fn new(raw: [u8; 32]) -> H256

returns a new instance of the hash without any adjustments

pub fn from_digest<D>(digest: D) -> H256

where D: AsRef<[u8]>,

returns a new instance of the hash from a digest

pub fn random() -> H256

generate a randome hash

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

returns the hash as a byte array

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

returns a mutable reference to the hash as a byte array

pub fn set(&mut self, value: [u8; 32]) -> &mut H256

copies the hash into the provided buffer

pub fn replace(&mut self, value: &[u8; 32]) -> [u8; 32]

replace and return the current value with another

pub fn swap(&mut self, other: &mut H256)

swap the current value with another

pub const fn as_slice(&self) -> &[u8]

returns the hash as a byte array

pub fn as_slice_mut(&mut self) -> &mut [u8]

returns a mutable reference to the hash as a byte array

pub fn copy_from_slice(&mut self, value: &[u8]) -> &mut H256

copies the hash into the provided buffer

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

returns a Vec<u8> representation of the hash

pub fn concat<Rhs>(&self, other: Rhs) -> H256

where H256: Concat<Rhs, Output = H256>,

this method generically concatenates two hashes based upon the given type and its corresponding implementations(s)

Trait Implementations

impl Add<f64> for H256

type Output = H256

The resulting type after applying the + operator.

fn add(self, rhs: f64) -> H256

Performs the + operation.

impl Add for H256

type Output = H256

The resulting type after applying the + operator.

fn add(self, rhs: H256) -> H256

Performs the + operation.

impl AddAssign<f64> for H256

fn add_assign(&mut self, rhs: f64)

Performs the += operation.

impl AddAssign for H256

fn add_assign(&mut self, rhs: H256)

Performs the += operation.

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 AsMut<[u8; 32]> for H256

fn as_mut(&mut self) -> &mut [u8; 32]

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 AsRef<[u8; 32]> for H256

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

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<(), Error>

Formats the value using the given formatter.

impl Default for H256

fn default() -> H256

Returns the “default value” for a type.

impl Deref for H256

type Target = [u8; 32]

The resulting type after dereferencing.

fn deref(&self) -> &<H256 as Deref>::Target

Dereferences the value.

impl DerefMut for H256

fn deref_mut(&mut self) -> &mut <H256 as Deref>::Target

Mutably dereferences the value.

impl<'de> Deserialize<'de> for H256

where H256: Default,

fn deserialize<__D>( __deserializer: __D, ) -> Result<H256, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for H256

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

Formats the value using the given formatter.

impl Div<f64> for H256

type Output = H256

The resulting type after applying the / operator.

fn div(self, rhs: f64) -> H256

Performs the / operation.

impl DivAssign<f64> for H256

fn div_assign(&mut self, rhs: f64)

Performs the /= operation.

impl<T> From<&T> for H256

where T: AsRef<[u8]>,

fn from(data: &T) -> H256

Converts to this type from the input type.

impl From<[u8; 32]> for H256

fn from(input: [u8; 32]) -> H256

Converts to this type from the input type.

impl From<GenericArray<u8, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>>> for H256

fn from( data: GenericArray<u8, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>>, ) -> H256

Converts to this type from the input type.

impl From<H160> for H256

fn from(input: H160) -> H256

Converts to this type from the input type.

impl From<H256> for [u8; 32]

fn from(input: H256) -> [u8; 32]

Converts to this type from the input type.

impl From<H256> for GenericArray<u8, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>>

fn from( input: H256, ) -> GenericArray<u8, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>>

Converts to this type from the input type.

impl From<H256> for H160

fn from(input: H256) -> H160

Converts to this type from the input type.

impl From<H256> for Vec<u8>

fn from(input: H256) -> Vec<u8>

Converts to this type from the input type.

impl From<Vec<u8>> for H256

fn from(input: Vec<u8>) -> H256

Converts to this type from the input type.

impl FromIterator<u8> for H256

fn from_iter<T>(iter: T) -> H256

where T: IntoIterator<Item = u8>,

Creates a value from an iterator.

impl Hash for H256

fn hash<__H>(&self, state: &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 Index<Range<usize>> for H256

type Output = [u8]

The returned type after indexing.

fn index(&self, index: Range<usize>) -> &<H256 as Index<Range<usize>>>::Output

Performs the indexing (container[index]) operation.

impl Index<usize> for H256

type Output = u8

The returned type after indexing.

fn index(&self, index: usize) -> &<H256 as Index<usize>>::Output

Performs the indexing (container[index]) operation.

impl IndexMut<Range<usize>> for H256

fn index_mut( &mut self, index: Range<usize>, ) -> &mut <H256 as Index<Range<usize>>>::Output

Performs the mutable indexing (container[index]) operation.

impl IndexMut<usize> for H256

fn index_mut(&mut self, index: usize) -> &mut <H256 as Index<usize>>::Output

Performs the mutable indexing (container[index]) operation.

impl IntoIterator for H256

type Item = u8

The type of the elements being iterated over.

type IntoIter = IntoIter<u8, 32>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <H256 as IntoIterator>::IntoIter

Creates an iterator from a value.

impl Mul<f64> for H256

type Output = H256

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> H256

Performs the * operation.

impl MulAssign<f64> for H256

fn mul_assign(&mut self, rhs: f64)

Performs the *= operation.

impl Ord for H256

fn cmp(&self, other: &H256) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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 PartialOrd for H256

fn partial_cmp(&self, other: &H256) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for H256

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 SizedHash for H256

const N: usize = 32usize

fn size(&self) -> usize

impl Copy for H256

impl Eq for H256

impl RawHash for H256

impl StructuralPartialEq for H256