Struct Uuid 

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

Implementations

impl Uuid

pub fn encode_lower<'buf>(&self, buffer: &'buf mut [u8]) -> &'buf mut str

pub const fn encode_buffer() -> [u8; 36]

impl Uuid

pub fn new_v4() -> Uuid

impl Uuid

pub fn new_v7() -> Uuid

Create a new version 7 UUID using a time value and random bytes.

When the std feature is enabled, you can also use Uuid::new_v7.

Note that usage of this method requires the v7 feature of this crate to be enabled.

References

• Version 7 UUIDs in Draft RFC: New UUID Formats, Version 4

pub fn new_v7_with_timestamp(unix_millis: u64) -> Self

impl Uuid

pub fn new_v8(buf: [u8; 16]) -> Uuid

impl Uuid

pub const fn nil() -> Uuid

The ‘nil UUID’ (all zeros).

The nil UUID is a special form of UUID that is specified to have all 128 bits set to zero.

References

• Nil UUID in RFC4122

Examples

Basic usage:

let uuid = Uuid::nil();

assert_eq!(
    "00000000-0000-0000-0000-000000000000",
    uuid.hyphenated().to_string(),
);

pub const fn get_version(&self) -> Option<Version>

pub const fn is_nil(&self) -> bool

pub const fn as_u128(&self) -> u128

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

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

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

pub fn from_slice(b: &[u8]) -> Result<Uuid, Error>

pub fn parse_str(input: &str) -> Result<Uuid, Error>

impl Uuid

pub fn hyphenated(&self) -> String

pub fn as_hyphenated(&self) -> String

pub fn simple(&self) -> Self

pub fn as_simple(&self) -> Self

Trait Implementations

impl AsRef<Uuid> for Uuid

fn as_ref(&self) -> &Uuid

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<[u8]> for Uuid

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Uuid

fn clone(&self) -> Uuid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Uuid

impl Debug for Uuid

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

Formats the value using the given formatter.

impl Default for Uuid

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Uuid

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

Deserialize this value from the given Serde deserializer.

impl Display for Uuid

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

Formats the value using the given formatter.

impl Eq for Uuid

impl From<Uuid> for String

fn from(uuid: Uuid) -> Self

Converts to this type from the input type.

impl From<Uuid> for Vec<u8>

fn from(value: Uuid) -> Self

Converts to this type from the input type.

impl FromStr for Uuid

type Err = Error

The associated error which can be returned from parsing.

fn from_str(uuid_str: &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 LowerHex for Uuid

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

Formats the value using the given formatter.

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::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Uuid

impl TryFrom<&str> for Uuid

type Error = Error

The type returned in the event of a conversion error.

fn try_from(uuid_str: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<u8>> for Uuid

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl UpperHex for Uuid

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

Formats the value using the given formatter.