Struct Hash

pub struct Hash(pub [u8; 32]);

A transaction ID, which uniquely identifies mined v5 transactions, and all v1-v4 transactions.

Note: Zebra displays transaction and block hashes in big-endian byte-order, following the u256 convention set by Bitcoin and zcashd.

“The transaction ID of a version 4 or earlier transaction is the SHA-256d hash of the transaction encoding in the pre-v5 format described above.

The transaction ID of a version 5 transaction is as defined in ZIP-244.“ Spec: Transaction Identifiers

Tuple Fields

0: [u8; 32]

Implementations

impl Hash

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

Return the hash bytes in big-endian byte-order suitable for printing out byte by byte.

Zebra displays transaction and block hashes in big-endian byte-order, following the u256 convention set by Bitcoin and zcashd.

pub fn from_bytes_in_display_order(bytes_in_display_order: &[u8; 32]) -> Hash

Convert bytes in big-endian byte-order into a transaction::Hash.

Zebra displays transaction and block hashes in big-endian byte-order, following the u256 convention set by Bitcoin and zcashd.

Trait Implementations

impl Arbitrary for Hash

type Parameters = <[u8; 32] as Arbitrary>::Parameters

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Map<<[u8; 32] as Arbitrary>::Strategy, fn(_: [u8; 32]) -> Hash>

The type of Strategy used to generate values of type Self.

fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl Clone for Hash

fn clone(&self) -> Hash

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Hash

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

Formats the value using the given formatter.

impl Display for Hash

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

Formats the value using the given formatter.

impl From<&Hash> for [u8; 32]

fn from(hash: &Hash) -> Self

Converts to this type from the input type.

impl From<&Transaction> for Hash

fn from(transaction: &Transaction) -> Self

Converts to this type from the input type.

impl From<[u8; 32]> for Hash

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

Converts to this type from the input type.

impl From<Arc<Transaction>> for Hash

fn from(transaction: Arc<Transaction>) -> Self

Converts to this type from the input type.

impl From<Hash> for [u8; 32]

fn from(hash: Hash) -> Self

Converts to this type from the input type.

impl From<Transaction> for Hash

fn from(transaction: Transaction) -> Self

Converts to this type from the input type.

impl FromHex for Hash

type Error = <[u8; 32] as FromHex>::Error

fn from_hex<T: AsRef<[u8]>>(hex: T) -> Result<Self, Self::Error>

Creates an instance of type Self from the given hex string, or fails with a custom error type.

impl FromIterator<Hash> for Root

fn from_iter<I>(hashes: I) -> Self

where I: IntoIterator<Item = Hash>,

Panics

When there are no transactions in the iterator. This is impossible, because every block must have a coinbase transaction.

impl FromStr for Hash

type Err = SerializationError

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 Hash

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 Ord for Hash

fn cmp(&self, other: &Hash) -> 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 Hash

fn eq(&self, other: &Hash) -> 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 Hash

fn partial_cmp(&self, other: &Hash) -> 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 ToHex for &Hash

fn encode_hex<T: FromIterator<char>>(&self) -> T

Encode the hex strict representing self into the result. Lower case letters are used (e.g. f9b4ca)

fn encode_hex_upper<T: FromIterator<char>>(&self) -> T

Encode the hex strict representing self into the result. Upper case letters are used (e.g. F9B4CA)

impl ToHex for Hash

fn encode_hex<T: FromIterator<char>>(&self) -> T

Encode the hex strict representing self into the result. Lower case letters are used (e.g. f9b4ca)

fn encode_hex_upper<T: FromIterator<char>>(&self) -> T

Encode the hex strict representing self into the result. Upper case letters are used (e.g. F9B4CA)

impl ZcashDeserialize for Hash

fn zcash_deserialize<R: Read>(reader: R) -> Result<Self, SerializationError>

Try to read self from the given reader.

impl ZcashSerialize for Hash

fn zcash_serialize<W: Write>(&self, writer: W) -> Result<(), Error>

Write self to the given writer using the canonical format.

fn zcash_serialize_to_vec(&self) -> Result<Vec<u8>, Error>

Helper function to construct a vec to serialize the current struct into

fn zcash_serialized_size(&self) -> usize

Get the size of self by using a fake writer.

impl Copy for Hash

impl Eq for Hash

impl StructuralPartialEq for Hash