Struct Hash 

pub struct Hash<K: HashKind>([u8; 32], PhantomData<K>);

The kind is a compile-time tag and must not reach the wire, so only the digest is encoded — as hex text in a format a human reads (the log, the projection, the clipboard), where a 32-element array of numbers would be unreadable and ungreppable, and as the bare bytes in a binary one.

Tuple Fields

0: [u8; 32]

1: PhantomData<K>

Implementations

impl<K: HashKind> Hash<K>

pub fn of(bytes: &[u8]) -> Self

The hash of a byte string in one call — what content addressing asks for everywhere the payload is already in hand.

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

The digest itself, for a durable form that spells hashes its own way — the log writes them as hex text, where the derived Serialize would write an array of 32 numbers.

pub fn from_hex(text: &str) -> Option<Self>

The hash back from the text Display writes, or None for text that is not one.

Trait Implementations

impl<K: Clone + HashKind> Clone for Hash<K>

fn clone(&self) -> Hash<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: HashKind> Debug for Hash<K>

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

Formats the value using the given formatter.

impl<K: Default + HashKind> Default for Hash<K>

fn default() -> Hash<K>

Returns the “default value” for a type.

impl<'de, K: HashKind> Deserialize<'de> for Hash<K>

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

Deserialize this value from the given Serde deserializer.

impl<K: HashKind> Display for Hash<K>

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

Formats the value using the given formatter.

impl<K: Ord + HashKind> Ord for Hash<K>

fn cmp(&self, other: &Hash<K>) -> 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<K: PartialEq + HashKind> PartialEq for Hash<K>

fn eq(&self, other: &Hash<K>) -> 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<K: PartialOrd + HashKind> PartialOrd for Hash<K>

fn partial_cmp(&self, other: &Hash<K>) -> 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<K: HashKind> Serialize for Hash<K>

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl<K: Copy + HashKind> Copy for Hash<K>

impl<K: Eq + HashKind> Eq for Hash<K>

impl<K: HashKind> StructuralPartialEq for Hash<K>