Type Erased Async Sequences in Swift

by iOS Example

AnyAsyncSequence

AnyAsyncSequence allows you to expose AsyncSequence interfaces in your APIs without exposing the underlying sequence type, while continuing to expose the sequence’s Element type to consumers, so they can asynchronously iterate over the sequence.

I assume that when Swift adds type constraints to opaque types (as has been hinted), this package may become unnecessary.

import AnyAsyncSequence

var mySequence: AnyAsyncSequence<Element> {
    myTypedSequence.eraseToAnyAsyncSequence()
}

Explore the documentation for more details.

Installation

AnyAsyncSequence currently distributed exclusively through the Swift Package Manager.

To add AnyAsyncSequence as a dependency to an existing Swift package, add the following line of code to the dependencies parameter of your Package.swift file:

dependencies: [
    .package(url: "https://github.com/vsanthanam/AnyAsyncSequence.git", .upToNextMajor(from: "1.0.0"))
]

To add AnyAsyncSequence as a dependency to an Xcode Project:

  • Choose File → Add Packages...
  • Enter package URL https://github.com/vsanthanam/AnyAsyncSequence.git and select your release and of choice.

Other distribution mechanisms like CocoaPods or Carthage may be added in the future.

Other

If you find this package useful, checkout some of my others

GitHub

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