Struct uuid::timestamp::context::NoContext

pub struct NoContext;

An empty counter that will always return the value 0.

This type can be used when constructing version 7 UUIDs. When used to construct a version 7 UUID, the entire counter segment of the UUID will be filled with a random value. This type does not maintain ordering of UUIDs within a millisecond but is efficient.

This type should not be used when constructing version 1 or version 6 UUIDs. When used to construct a version 1 or version 6 UUID, the counter segment will remain zero.

Trait Implementations

impl ClockSequence for NoContext

type Output = u16

The type of sequence returned by this counter.

fn generate_sequence(&self, _seconds: u64, _nanos: u32) -> Self::Output

Get the next value in the sequence to feed into a timestamp.

fn usable_bits(&self) -> usize

The number of usable bits from the least significant bit in the result of ClockSequence::generate_sequence or ClockSequence::generate_timestamp_sequence.

fn generate_timestamp_sequence( &self, seconds: u64, subsec_nanos: u32, ) -> (Self::Output, u64, u32)

Get the next value in the sequence, potentially also adjusting the timestamp.

impl Clone for NoContext

fn clone(&self) -> NoContext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NoContext

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

Formats the value using the given formatter.

impl Default for NoContext

fn default() -> NoContext

Returns the “default value” for a type.

impl Copy for NoContext