Struct elrond_wasm::H256

pub struct H256(_);

Implementations

impl H256

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

impl H256

pub fn zero() -> H256

Returns a new zero-initialized fixed hash.

pub fn len_bytes() -> usize

Returns the size of this hash in bytes.

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

Extracts a byte slice containing the entire fixed hash.

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

Extracts a mutable byte slice containing the entire fixed hash.

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

Extracts a reference to the byte array containing the entire fixed hash.

pub fn copy_to_array(&self, target: &mut [u8; 32])

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

Trait Implementations

impl AsMut<[u8]> for H256

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

Performs the conversion.

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 Debug for H256

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

Formats the value using the given formatter.

impl Decode for H256

fn dep_decode<I: Input>(input: &mut I) -> Result<Self, DecodeError>

Attempt to deserialise the value from input, using the format of an object nested inside another structure. In case of success returns the deserialized value and the number of bytes consumed during the operation.

fn top_decode<I>(input: &mut I) -> Result<Self, DecodeError> where
    I: Input, 

Attempt to deserialise the value from input.

fn top_decode_from_i64<I>(_input: I) -> Option<Result<Self, DecodeError>> where
    I: FnOnce() -> i64, 

Used to optimize handling of arguments/storage. Optionally calls a closure that retrieves an i64 and if it returns Some(...), the result will be used.

impl Encode for H256

fn dep_encode_to<O: Output>(&self, dest: &mut O) -> Result<(), EncodeError>

Encode to output, using the format of an object nested inside another structure. Does not provide compact version.

fn top_encode(&self) -> Result<Vec<u8>, EncodeError>

Convert self to an owned vector. Allowed to provide compact version. Do not call for nested objects.

fn using_top_encoded<F>(&self, f: F) -> Result<(), EncodeError> where
    F: FnOnce(&[u8]), 

Convert self to a slice and then invoke the given closure with it. Allowed to provide compact version. Do not call for nested objects.

fn top_encode_as_i64(&self) -> Option<Result<i64, EncodeError>>

impl Eq for H256

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 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<H256> for [u8; 32]

fn from(s: H256) -> Self

Performs the conversion.

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 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 StructuralEq for H256

impl StructuralPartialEq for H256