MainOffender

A tiny package with utilities to help with Swift Concurrency

You can also just copy-paste the stuff you need into your project if you aren't into taking on the dependency. I won't be offended (ha!).

Features:

• MainActor.runUnsafely for MainActor.assumeIsolated with lower OS version requirements.
• DispatchQueue.mainActor for a DispatchQueue proxy that is @MainActor-compatible
• OperationQueue.mainActor for an OperationQueue proxy that is @MainActor compatible
• UnsafeBlockOperation for BlockOperation without Sendable checking
• Additions to OperationQueue to submit blocks directly without Sendable checking
• addUnsafeObserver(forName:object:queue:using:) for NotificationCenter

Usage

OperationQueue did not (yet?) get the same unsafe features of DispatchQueue. Here are some unsafe variants that allow you to make use of OperationQueue without warnings.

let op = UnsafeBlockOperation {
    // non-Sendable captures ok
}

operationQueue.addOperation(op)

queue.addUnsafeOperation {
    // non-Sendable captures ok
}

queue.addUnsafeBarrierBlock {
    // non-Sendable captures ok
}

Installation

dependencies: [
    .package(url: "https://github.com/mattmassicotte/MainOffender", from: "0.1.0")
]

Contributing and Collaboration

I'd love to hear from you! Get in touch via mastodon, an issue, or a pull request.

I prefer collaboration, and would love to find ways to work together if you have a similar project.

I prefer indentation with tabs for improved accessibility. But, I'd rather you use the system you want and make a PR than hesitate because of whitespace.

By participating in this project you agree to abide by the Contributor Code of Conduct.