Welcome to Tagging, a small library that makes it easy to create type-safe tags in Swift. Categorization are often very useful for our models, so leveraging the compiler to ensure that they're used in a correct manner can go a long way to making the model layer of an app or system more robust.

This library is strongly inspired by JohnSundell/🆔entity and mbleigh/acts-as-taggable-on, for theoretical information, check out "Type-safe identifiers in Swift" on Swift by Sundell.

All you have to do to use Tagging is to make a model conform to Taggable, and give it an tags property, like this:

struct Article: Taggable {
    let tags: [Tag<Article>]
    let title: String
}

And just like that, the above Article tags are now type-safe! Thanks to Swift’s type inference capabilities, it’s also possible to implement an Taggable type’s tags simply by using Tags as its type:

struct Article: Taggable {
    let tags: Tags<