SwiftGodot is not yet ready for Swift 6’s new concurrency model. In the meanwhile, this guide will show you how to get SwiftGodot running with Swift 6 tools.
Clearing Up Misconceptions
First we must understand the difference between Swift tool versions and language modes.
The Swift tool version is the version of Swift that you have downloaded on your system. To find this version you can run swift -version in the terminal.
The Swift language mode determines which version of Swift syntax you would like to use. This also determines which Swift language features you are able to use in your code.
The Swift 6 tool version is able to run in the following language modes:
- Swift 4
- Swift 4.2
- Swift 5
- Swift 6
Incremental Adoption
The point is that it is completely fine to build a SwiftGodot project without accepting all of the latest Swift 6 concurrency features immediately. This transition will need to be incremental and gradual.
That being said, if your are using the Swift 6 tools then you will need to suppress some warning in order to get your project to compile. This guide will provide helpful recommendations.
Using Swift 5 Language Mode
Use @unchecked Sendable
It is recommended to add @unchecked Sendable conformance to any type that has the @Godot macro attached to it.
@Godot class MyType: @unchecked Sendable {
// ...
}This does not make your code any less safe than it was before Swift 6. Rather it is telling the compiler that you are opting out of strict sendability checking for this type.
Not adding @unchecked Sendable to your @Godot types means that certain features like the @Callable macro will not compile.
Consider using @preconcurrency import SwiftGodot
Consider using @preconcurrency import SwiftGodot to import SwiftGodot. Certain features may not compile without using @preconcurrency.