Struct mohan::hash::H256

pub struct H256(_);

A hash to uniquely (or close enough) identify one of the main blockchain constructs. Used pervasively for blocks, transactions and outputs.

Methods

impl H256

pub fn zero() -> H256

pub fn hash_with<T: Writeable>(&self, other: T) -> H256

pub fn from_vec(v: &[u8]) -> H256

Builds a Hash from a byte vector. If the vector is too short, it will be completed by zeroes. If it's too long, it will be truncated.

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

Converts the hash to a byte vector

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

Returns a byte slice of the hash contents.

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

Returns a byte slice of the hash contents.

pub fn to_hex(&self) -> String

Convert a hash to hex string format.

pub fn from_hex(hex: &str) -> Result<H256, Error>

Convert hex string back to hash.

pub fn to_u64(&self) -> u64

Most significant 64 bits

pub fn into_scalar(&self) -> Scalar

Convert Hash into a Scalar

pub fn to_uint(&self) -> U256

Flip into u256

Trait Implementations

impl Add<H256> for H256

type Output = H256

The resulting type after applying the + operator.

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

Performs the + operation.

impl AsRef<[u8]> for H256

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

Performs the conversion.

impl Clone for H256

fn clone(&self) -> H256

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for H256

impl Debug for H256

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

Formats the value using the given formatter.

impl Default for H256

fn default() -> H256

Returns the "default value" for a type.

impl DefaultHashable for H256

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

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

Deserialize this value from the given Serde deserializer.

impl Display for H256

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

Formats the value using the given formatter.

impl Eq for H256

impl FixedLength for H256

const LEN: usize

Size of a hash in bytes.

impl From<[u8; 32]> for H256

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

Performs the conversion.

impl FromStr for H256

type Err = Error

The associated error which can be returned from parsing.

fn from_str(input: &str) -> Result<H256, Error>

Creates a hash type instance from the given string.

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, 

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, idx: Range<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeFrom<usize>> for H256

type Output = [u8]

The returned type after indexing.

fn index(&self, idx: RangeFrom<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeFull> for H256

type Output = [u8]

The returned type after indexing.

fn index(&self, idx: RangeFull) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<RangeTo<usize>> for H256

type Output = [u8]

The returned type after indexing.

fn index(&self, idx: RangeTo<usize>) -> &[u8]

Performs the indexing (container[index]) operation.

impl Index<usize> for H256

type Output = u8

The returned type after indexing.

fn index(&self, idx: usize) -> &u8

Performs the indexing (container[index]) operation.

impl Ord for H256

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

This method returns an [Ordering] between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<H256> for H256

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

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

fn ne(&self, other: &H256) -> bool

This method tests for !=.

impl PartialOrd<H256> 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: &H256) -> bool

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

fn le(&self, other: &H256) -> bool

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

fn gt(&self, other: &H256) -> bool

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

fn ge(&self, other: &H256) -> bool

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

impl Readable for H256

fn read(reader: &mut dyn Reader) -> Result<H256, Error>

Reads the data necessary to this Readable from the provided reader

impl Serialize for H256

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for H256

impl StructuralPartialEq for H256

impl Writeable for H256

fn write<W: Writer>(&self, writer: &mut W) -> Result<(), Error>

Write the data held by this Writeable to the provided writer