Swift 6: Secure Your Imports with Access-Level Modifiers

Lock Down Your Code: Mastering Access-Level Modifiers in Swift 6

Brahim Siempay
3 min readJun 26, 2024
Photo by Tyler Casey on Unsplash

Swift 6 brings an exciting feature for developers: access-level modifiers on import declarations. This update builds on the robust features of Swift 5.10 and offers a new layer of security and modularity in code management. Let’s dive into what this means and how you can use it to your advantage!

What’s New in Swift 6?

Swift 6 introduces the ability to apply access control modifiers to import statements. This means you can now specify access levels such as private, fileprivate, internal, public, and open directly on your import declarations. For example, you can now write:

private import SomeLibrary

This ensures that the imported library is only accessible within the scope where it is imported, preventing unintended exposure of internal components.

Why is This Important?

Enhanced Security 🔐

By restricting the visibility of imported libraries, you reduce the risk of exposing internal or sensitive components of your codebase. This is particularly useful in large projects where multiple teams may be working on different…

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