Struct Digest 

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

A blake3 digest of some canonical encoding.

This is the identity of every immutable primitive in BoundGraph. It is what makes the ledger verifiable by a third party and what makes the content-addressed store able to deduplicate: equal digests mean equal bytes, with no further comparison needed.

Implementations

impl Digest

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

Hash raw bytes.

Prefer Canonical::digest for typed values; this is for bytes that are already in their final form, such as a raw tool output on its way into the content-addressed store.

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

Wrap an already-computed digest.

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

The raw digest bytes.

pub fn to_hex(&self) -> String

Lowercase hex, 64 characters.

pub fn short(&self, n: usize) -> String

The first n hex characters, for logs and diagnostics.

Never use an abbreviated digest for identity or comparison.

Trait Implementations

impl Clone for Digest

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Digest

impl Debug for Digest

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

Abbreviated, so debug output of a struct full of digests stays readable.

impl<'de> Deserialize<'de> for Digest

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Digest

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

Formats the value using the given formatter.

impl Eq for Digest

impl FromStr for Digest

type Err = DigestParseError

The associated error which can be returned from parsing.

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

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

impl Hash for Digest

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 Digest

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Digest

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Digest

fn partial_cmp(&self, other: &Self) -> 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 Digest

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 Digest