Struct Hash256 

pub struct Hash256(/* private fields */);

A 32-byte hash used for transaction and block identifiers on Neo N3.

Hash256 wraps exactly 32 bytes and provides validated construction.

Implementations

impl Hash256

pub const LENGTH: usize = 32

The fixed byte length of a Hash256.

pub const ZERO: Self

A zero-valued Hash256.

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

Creates a Hash256 from a 32-byte array.

pub fn try_from_slice(slice: &[u8]) -> NeoResult<Self>

Attempts to create a Hash256 from a byte slice.

Returns Err(NeoError::InvalidArgument) if the slice length is not exactly 32.

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

Returns the underlying 32 bytes as a slice.

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

Returns the underlying 32 bytes as a generic slice.

pub fn is_zero(&self) -> bool

Returns true if all bytes are zero.

pub fn to_byte_string(&self) -> NeoByteString

Converts this Hash256 into a NeoByteString.

Trait Implementations

impl AsRef<[u8]> for Hash256

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

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

impl Clone for Hash256

fn clone(&self) -> Hash256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hash256

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

Formats the value using the given formatter.

impl Default for Hash256

fn default() -> Hash256

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Hash256

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Hash256

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

Formats the value using the given formatter.

impl Eq for Hash256

impl From<Hash256> for NeoByteString

fn from(h: Hash256) -> Self

Converts to this type from the input type.

impl Hash for Hash256

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 Hash256

fn eq(&self, other: &Hash256) -> 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 Hash256

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Hash256

impl TryFrom<&[u8]> for Hash256

type Error = NeoError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<NeoByteString> for Hash256

type Error = NeoError

The type returned in the event of a conversion error.

fn try_from(bs: NeoByteString) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<u8>> for Hash256

type Error = NeoError

The type returned in the event of a conversion error.

fn try_from(vec: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.