Struct IdGenerator 

pub struct IdGenerator<T> { /* private fields */ }

Thread-safe ID allocator.

The counter starts at 1 so every allocated ID is a valid NonZeroU32. Zero is never handed out: it is the niche value that makes Option<Id> free (4 bytes, not 8). Allocation panics only after exhausting the full u32 space (>4 billion ids), which is treated as a programmer limit.

Implementations

impl<T> IdGenerator<T>

pub fn new() -> Self

pub fn with_start(start: u32) -> Self

pub fn next(&self) -> T

where T: From<NonZeroU32>,

Trait Implementations

impl<T: Debug> Debug for IdGenerator<T>

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

Formats the value using the given formatter.

impl<T> Default for IdGenerator<T>

fn default() -> Self

Returns the “default value” for a type.