Struct CryptoHash

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

Tuple Fields

0: [u8; 32]

Implementations

impl CryptoHash

pub const LENGTH: usize = 32usize

pub const fn new() -> Self

pub fn hash_bytes(bytes: &[u8]) -> CryptoHash

Calculates hash of given bytes.

pub fn hash_borsh<T: BorshSerialize>(value: T) -> CryptoHash

Calculates hash of borsh-serialised representation of an object.

Note that using this function with an array may lead to unexpected results. For example, CryptoHash::hash_borsh(&[1u32, 2, 3]) hashes a representation of a [u32; 3] array rather than a slice. It may be cleaner to use Self::hash_borsh_iter instead.

pub fn hash_borsh_iter<I>(values: I) -> CryptoHash

where I: IntoIterator, I::IntoIter: ExactSizeIterator, I::Item: BorshSerialize,

Calculates hash of a borsh-serialised representation of list of objects.

This behaves as if it first collected all the items in the iterator into a vector and then calculating hash of borsh-serialised representation of that vector.

Panics if the iterator lies about its length.

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

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for CryptoHash

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl<__AsMutT: ?Sized> AsMut<__AsMutT> for CryptoHash

where [u8; 32]: AsMut<__AsMutT>,

fn as_mut(&mut self) -> &mut __AsMutT

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

impl<__AsRefT: ?Sized> AsRef<__AsRefT> for CryptoHash

where [u8; 32]: AsRef<__AsRefT>,

fn as_ref(&self) -> &__AsRefT

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

impl BorshDeserialize for CryptoHash

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

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

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for CryptoHash

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

impl Clone for CryptoHash

fn clone(&self) -> CryptoHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CryptoHash

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

Formats the value using the given formatter.

impl Default for CryptoHash

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CryptoHash

fn deserialize<D>( deserializer: D, ) -> Result<Self, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CryptoHash

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

Formats the value using the given formatter.

impl From<&CryptoHash> for Vec<u8>

fn from(hash: &CryptoHash) -> Vec<u8>

Converts to this type from the input type.

impl From<CryptoHash> for [u8; 32]

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

Converts to this type from the input type.

impl From<CryptoHash> for Vec<u8>

fn from(hash: CryptoHash) -> Vec<u8>

Converts to this type from the input type.

impl FromStr for CryptoHash

fn from_str(encoded: &str) -> Result<Self, Self::Err>

Decodes base58-encoded string into a 32-byte crypto hash.

type Err = Box<dyn Error + Send + Sync>

The associated error which can be returned from parsing.

impl Hash for CryptoHash

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 CryptoHash

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

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

fn partial_cmp(&self, other: &CryptoHash) -> 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 Serialize for CryptoHash

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 TryFrom<&[u8]> for CryptoHash

type Error = Box<dyn Error + Send + Sync>

The type returned in the event of a conversion error.

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

Performs the conversion.

impl Copy for CryptoHash

impl Eq for CryptoHash

impl StructuralPartialEq for CryptoHash