Insanity VS uiviewcontroller-metaprogramming

Now that we have designed our APIs we can generate the code. For each view controller in our project, we are going to generate 3 functions: create, push, and present. We are going to generate code with Sourcery — a tool developed by Krzysztof Zabłocki.

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.

To set up MockSwift, make sure you have Sourcery and the package installed. Then, create a script called gen-mocks.sh with the following content (updating the paths if required):

Probably overkill for a single DTO but I use Sourcery to provide default decoding values for nil/missing properties (among other things).

You can probably do something with Sourcery.

This post has some tips on using Sourcery to help automate the creation of that bridge layer.

There is a bit of boilerplate code but it can be easily generated using tools like sourcery.

We make view controller instantiation more type-safe by eliminating string IDs and use metaprogramming to generate functions that let you create, push, and present any view controller in 1 LOC, so you can save ~15 LOC whenever you want to perform push or present. It works both with storyboard-based view controllers and code-only ones. The generated code is autocomplete-friendly. Here is the full source code example.