Struct Uuid

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

A structure representing a UUID (Universally Unique Identifier).

Implementations

impl Uuid

pub fn nil() -> Self

Returns a nil (all zeros) UUID.

pub fn from_parts(value: [u32; 4]) -> Self

Creates a new UUID from 4 parts represented as an array of u32.

pub fn from_u128(value: u128) -> Self

Converts a u128 value into a UUID by splitting it into four u32 parts.

pub fn new_v4() -> Self

Generates a new random UUID following version 4 (random).

pub fn as_bytes(&self) -> &[u32]

Returns a reference to the internal array of 4 u32 values.

pub fn as_u128(&self) -> u128

Converts the UUID into a single u128 value.

pub fn as_hyphened(&self, f: &mut impl Write) -> Result

Formats the UUID as a hyphenated string (e.g., xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).

pub fn as_parentheses(&self, f: &mut impl Write) -> Result

Formats the UUID within parentheses string (e.g., {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}).

pub fn as_simple(&self, f: &mut impl Write) -> Result

Formats the UUID as a simple string without hyphens (e.g., xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx).

pub fn to_simple_string(&self) -> String

pub fn to_hyphened_string(&self) -> String

Trait Implementations

impl Clone for Uuid

fn clone(&self) -> Uuid

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Uuid

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

Formats the value using the given formatter.

impl Default for Uuid

fn default() -> Uuid

Returns the “default value” for a type.

impl Deserialize for Uuid

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

impl Display for Uuid

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

Formats the value using the given formatter.

impl FromStr for Uuid

type Err = InvalidUuid

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 Uuid

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 Uuid

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

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

fn partial_cmp(&self, other: &Uuid) -> 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 Uuid

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

impl Copy for Uuid

impl Eq for Uuid

impl StructuralPartialEq for Uuid