Crate zng_unique_id

Macros for generating unique ID types.

Crate

This crate is part of the zng project.

Cargo Features

This crate provides 2 feature flags, 1 enabled by default.

"named"

Enable associated names for ID types.

Enabled by default.

"hot_reload"

Enable static patching for ID types.

The hot_reload feature on the main crate uses this to ensure IDs generated by dynamically loaded libraries are unique across the running process.

Macros

• hot_static
  Declares a patchable static.
• hot_static_ref
  Static reference to a hot_static!.
• impl_unique_id_bytemuck
  Implement bytemuck trait for the unique ID.
• impl_unique_id_fmt
  Implement debug and display for an unique ID type that also implements name.
• impl_unique_id_name
  Extend an unique ID type to have an optional attached name string, also implements.
• lazy_static
  Implementation of lazy_static! that supports hot reloading.
• static_id
  Declares a static unique ID that is lazy inited.
• unique_id_32
  Declare a new unique id type that is backed by a NonZeroU32.
• unique_id_64
  Declare a new unique id type that is backed by a NonZeroU64.

Structs

• BuildIdHasher
  Build IdHasher.
• IdHasher
  No-op hasher.
• IdMap
  Map specialized for unique IDs that are already a randomized hash.
• IdSet
  Set specialized for unique IDs that are already a randomized hash.

Enums

• IdNameError
  Error when trying to associate give a name with an existing id.

Traits

• UniqueId
  Trait implemented for all generated unique ID types.

Functions

• lazy_static_init
  Initializes a lazy_static! with a custom value if it is not yet inited.

Type Aliases

• IdEntry
  Entry in IdMap.
• IdOccupiedEntry
  Occupied entry in an IdEntry.
• IdVacantEntry
  Vacant entry in an IdEntry.