Crate stable_identifier 

Provides a convenient abstraction for working with identifiers of various types.

The main use case of this crate is to define your own “identifier domains” (categories of things that can be identified) using the IdDomain trait. IdDomain can be implemented for almost any type or even just a marker struct if you don’t have relevant type available already.

To implement IdDomain you provide a Backing type that will be used to store the actual identifier type of your choice. You can then use Id<T> to construct identifiers of that type, scoped to the domain you have defined. The generic argument acts as a compile-time check that you are not mixing up identifiable domains and helps clarify the intent between identifiers with minimal boilerplate.

Other minor features include:

• Providing random generation of identifiers in your domain
• Providing a const representation of identifiers in your domain
• Extracting identifiers of types using the IdentifyAs trait
• Assigning identifiers to types using the StableTypeId trait

Optional features

• serde lets you serialize and deserialize Id<T>, as long as the backing type also implements these traits.
• tiny_id provides a barebones implementation of a concrete backing type that can be used if you just want a quick and easy identifier, with random ID generation using nanoid.

Structs

Id

A container type for an unique identifier of an object in domain D.

Traits

GenerateIdStateful

Allows a type to generate identifiers in a ‘stateful’ manner.

GenerateIdStateless

Allows a type to generate identifiers in a ‘stateless’ manner.

IdDomain

Defines a “domain” of identifiable entities.

IdentifyAs

Used to identify Self by some identifier in domain D.

StableTypeId

This trait lets you define stable identifiers of a specified IdDomain for types. The implementor gets to choose their own identifier that is assumed to be unique.