Struct solana_sdk::hash::Hash

#[repr(transparent)]
pub struct Hash(_);

A hash; the 32-byte output of a hashing algorithm.

This struct is used most often in solana-sdk and related crates to contain a SHA-256 hash, but may instead contain a blake3 hash, as created by the blake3 module (and used in Message::hash).

Implementations

impl Hash

pub fn new(hash_slice: &[u8]) -> Hash

pub const fn new_from_array(hash_array: [u8; 32]) -> Hash

pub fn new_unique() -> Hash

unique Hash for tests and benchmarks.

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

Trait Implementations

impl AbiExample for Hash

fn example() -> Hash

impl AsRef<[u8]> for Hash

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

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

impl BorshDeserialize for Hash

fn deserialize(buf: &mut &[u8]) -> Result<Hash, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

impl BorshSchema for Hash where
    [u8; 32]: BorshSchema, 

fn declaration() -> String

Get the name of the type without brackets.

fn add_definitions_recursively(
    definitions: &mut HashMap<String, Definition, RandomState>
)

Recursively, using DFS, add type definitions required for this type. For primitive types this is an empty map. Type definition explains how to serialize/deserialize a type.

fn add_definition(
    declaration: String,
    definition: Definition,
    definitions: &mut HashMap<String, Definition, RandomState>
)

Helper method to add a single type definition to the map.

fn schema_container() -> BorshSchemaContainer

impl BorshSerialize for Hash

fn serialize<W>(&self, writer: &mut W) -> Result<(), Error> where
    W: Write, 

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

Serialize this instance into a vector of bytes.

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<(), Error>

Formats the value using the given formatter.

impl Default for Hash

fn default() -> Hash

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Hash

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

Deserialize this value from the given Serde deserializer.

impl Display for Hash

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

Formats the value using the given formatter.

impl From<[u8; 32]> for Hash

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

Converts to this type from the input type.

impl From<Hash> for MessageHash

fn from(hash: Hash) -> Self

Converts to this type from the input type.

impl FromStr for Hash

type Err = ParseHashError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Hash, <Hash as FromStr>::Err>

Parses a string s to return a value of this type.

impl FromWasmAbi for Hash

type Abi = u32

The wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: u32) -> Hash

Recover a Self from Self::Abi.

impl Hash for Hash

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, 

Feeds a slice of this type into the given Hasher.

impl IntoWasmAbi for Hash

type Abi = u32

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl OptionFromWasmAbi for Hash

fn is_none(abi: &<Hash as FromWasmAbi>::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for Hash

fn none() -> <Hash as IntoWasmAbi>::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<Hash> for Hash

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

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

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

This method tests for !=.

impl PartialOrd<Hash> 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

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

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

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

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

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

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

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

impl RefFromWasmAbi for Hash

type Abi = u32

The wasm ABI type references to Self are recovered from.

type Anchor = Ref<'static, Hash>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(
    js: <Hash as RefFromWasmAbi>::Abi
) -> <Hash as RefFromWasmAbi>::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for Hash

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RefMut<'static, Hash>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(
    js: <Hash as RefMutFromWasmAbi>::Abi
) -> <Hash as RefMutFromWasmAbi>::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl Sanitize for Hash

fn sanitize(&self) -> Result<(), SanitizeError>

impl Serialize for Hash

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 Copy for Hash

impl Eq for Hash

impl StructuralEq for Hash

impl StructuralPartialEq for Hash