Struct 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 duplicate 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

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

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