Tweaks Macros for Swift

Poetry cannot be translated; and, therefore, it is the poets that preserve the languages.

Samuel Johnson

Why this extension ?

Because macros does not exists anymore in Swift, so we have to translate them into Swift functions func.

Generics

Swift brings the power of generics, so this extension use it pretty intensively. The major benefit is that tweaks are now checked at compile time.

For instance, if you want to control the animation duration, you can do :

let duration: Double = tweak("Advanced", "Animation", "Duration", Double(1.0), Double(0.3), Double(8.0))

NB: the let duration: Double is to prove to you that the tweak(_:_:_:_:_:_:) function is returining the right type, which is Double in this case.

Installation

Three simple steps :

• of course, include the original FBTweaks project with one of the two options they provide
• include the FBTweaks+Macros.swift
• add the content of the ObjC-Briding-Header.h file to your own Objective-C Briding Header file.

And you're good to go.

Known issues

• tweaks are not statically stored during compile time in the __FBTweak section of the mach-o, as they are in the objective-c macros implementation. If you figure out a way to do that with the Swift compiler, do not hesitate to make a PR.

Contact

Pierre Dulac
@dulaccc

License

Tweaks-swift is available under the MIT license. See the LICENSE file for more info.