Our great sponsors
-
-
WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
-
We generate a set of enums — Union2, Union3, etc. — that act like a disjoint set. For every UnionX, we also provide a selection of helper methods: conformance to the standard Swift protocols, higher-order functions, etc. The code is generated using a Sourcery template written in Swift. All the source code, including a Swift playground, Sourcery templates, configuration files, and scripts, is available on GitHub. You can also run the code on Repl.it.
The Swift community came up with a couple of implementations of Either — a generic enum that carries one of 2 types associated with it (here, here, and here). There has been a discussion about adding Either to the Standard Library. Still, it seems we’re not going to have it in the foreseeable future because adding disjunctions (logical XORs) in type constraints is a commonly rejected evolution proposal. Funny enough, Apple has an internal implementation of Either in their standard library, but they are not sharing it with us ¯\_(ツ)_/¯
The most popular tool for generating code in Swift is Sourcery — a tool developed by Krzysztof Zabłocki. It works like this: you provide a template file, Sourcery parses your source code and generates code based on your template and the parsed source code. Sourcery can be used as a standalone executable or embedded right into the Xcode building process as a Run Script phase. It automatically regenerates code on any changes in your template file or in the project source files.
if you want your code to be formatted with a specific set of rules in mind, you can forward the generated code to a formatting utility, e.g. swift-format