Struct Id128 

pub struct Id128(/* private fields */);

A 128-bit opaque identifier stored as 16 bytes, formatted as a hyphenated UUID string.

Implementations

impl Id128

pub const NIL: Self

The all-zeros nil identifier, used as a sentinel for “no record”.

pub const fn from_bytes(bytes: [u8; 16]) -> Self

Construct an Id128 from its raw 16-byte representation.

pub const fn as_bytes(&self) -> &[u8; 16]

Return a reference to the underlying 16-byte array.

pub const fn is_nil(&self) -> bool

Return true if all 16 bytes are zero (the nil sentinel).

pub const fn from_u128(v: u128) -> Self

Construct an Id128 from a u128 in big-endian byte order.

pub const fn to_u128(&self) -> u128

Convert the identifier back to its u128 big-endian representation.

Trait Implementations

impl Clone for Id128

fn clone(&self) -> Id128

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Id128

impl Debug for Id128

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

Formats the value using the given formatter.

impl Default for Id128

fn default() -> Self

Returns the “default value” for a type.

impl Display for Id128

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

Formats the value using the given formatter.

impl Eq for Id128

impl FromStr for Id128

type Err = ParseIdError

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 Id128

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 Id128

fn cmp(&self, other: &Id128) -> 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 Id128

fn eq(&self, other: &Id128) -> 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 Id128

fn partial_cmp(&self, other: &Id128) -> 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 StructuralPartialEq for Id128