Learning Kotlin and Swift

Making Kotlin Scope Functions in Swift

Explore the different between Kotlin and Swift

Picture by Julian Hochgesang on Unsplash

If you have used Kotlin before, very likely you have used one of the Standard Scope function e.g. let, apply, with, run, etc. They are so handy. Check out the article below, if you haven’t heard of it.

Mastering Kotlin standard functions: run, with, let, also and apply

However, when switch over to Swift, they are not readily available. So I’m attempting to make my own version of it (the implemented codes are at the bottom of this blog)

What’s required to make scope function?

In order to do that, let’s look at what a Scope function needed. I pick one that has all the needing attributes

// Kotlin
public inline fun <T, R> T.run(block: T.() -> R): R

1. It prefers to inline the function

// Kotlin
public inline fun <T, R> T.run(block: T.() -> R): R