Struct Hash128 

pub struct Hash128(pub [u8; 16]);

128-bit hash of a whole normalized representation.

Tuple Fields

0: [u8; 16]

Implementations

impl Hash128

pub fn of_tokens(tokens: &[String]) -> Hash128

Hash of a token sequence: the first 128 bits of BLAKE3 over the tokens, each followed by a separator, so that ["ab", "c"] and ["a", "bc"] differ.

Examples

use pelicode_core::Hash128;

let tokens = |s: &str| s.split(' ').map(String::from).collect::<Vec<_>>();
assert_eq!(Hash128::of_tokens(&tokens("a b")), Hash128::of_tokens(&tokens("a b")));
assert_ne!(Hash128::of_tokens(&tokens("ab c")), Hash128::of_tokens(&tokens("a bc")));

pub fn to_hex(&self) -> String

The hash as 32 lower-case hexadecimal digits.

Examples

use pelicode_core::Hash128;

assert_eq!(Hash128([0xab; 16]).to_hex(), "ab".repeat(16));

pub fn from_hex(hex: &str) -> Option<Hash128>

Parses 32 hexadecimal digits, as written by Hash128::to_hex; None for anything else.

Examples

use pelicode_core::Hash128;

let hash = Hash128([0x01; 16]);
assert_eq!(Hash128::from_hex(&hash.to_hex()), Some(hash));
assert_eq!(Hash128::from_hex("not a hash"), None);

Trait Implementations

impl Clone for Hash128

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 Hash128

impl Debug for Hash128

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

Formats the value using the given formatter.

impl Display for Hash128

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

Formats the value using the given formatter.

impl Eq for Hash128

impl Hash for Hash128

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 Hash128

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 Hash128

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Hash128

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 Hash128

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Hash128