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sideeffect-io/AsyncExtensions 0.5.2
AsyncExtensions aims to mimic Swift Combine operators for async sequences.
⭐️ 279
🕓 1 year ago
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.package(url: "https://github.com/sideeffect-io/AsyncExtensions.git", from: "0.5.2")

AsyncExtensions

Build Status AsyncExtensions supports Swift Package Manager (SPM)

AsyncExtensions provides a collection of operators that intends to ease the creation and combination of AsyncSequences.

AsyncExtensions can be seen as a companion to Apple swift-async-algorithms. For now there is an overlap between both libraries, but when swift-async-algorithms becomes stable the overlapping operators while be deprecated in AsyncExtensions. Nevertheless AsyncExtensions will continue to provide the operators that the community needs and are not provided by Apple.

Adding AsyncExtensions as a Dependency

To use the AsyncExtensions library in a SwiftPM project, add the following line to the dependencies in your Package.swift file:

.package(url: "https://github.com/sideeffect-io/AsyncExtensions"),

Include "AsyncExtensions" as a dependency for your executable target:

.target(name: "<target>", dependencies: ["AsyncExtensions"]),

Finally, add import AsyncExtensions to your source code.

Features

Channels

Subjects

Combiners

  • zip(_:_:): Zips two AsyncSequence into an AsyncSequence of tuple of elements
  • zip(_:_:_:): Zips three AsyncSequence into an AsyncSequence of tuple of elements
  • zip(_:): Zips any async sequences into an array of elements
  • merge(_:_:): Merges two AsyncSequence into an AsyncSequence of elements
  • merge(_:_:_:): Merges three AsyncSequence into an AsyncSequence of elements
  • merge(_:): Merges any AsyncSequence into an AsyncSequence of elements
  • withLatest(_:): Combines elements from self with the last known element from an other AsyncSequence
  • withLatest(_:_:): Combines elements from self with the last known elements from two other async sequences

Creators

Operators

  • handleEvents(): Executes closures during the lifecycle of the self
  • mapToResult(): Maps elements and failure from self to a Result type
  • prepend(_:): Prepends an element to self
  • scan(_:_:): Transforms elements from self by providing the current element to a closure along with the last value returned by the closure
  • assign(_:): Assigns elements from self to a property
  • collect(_:): Iterate over elements from self and execute a closure
  • eraseToAnyAsyncSequence(): Erases to AnyAsyncSequence
  • flatMapLatest(_:): Transforms elements from self into a AsyncSequence and republishes elements sent by the most recently received AsyncSequence when self is an AsyncSequence of AsyncSequence
  • multicast(_:): Shares values from self to several consumers thanks to a provided Subject
  • share(): Shares values from self to several consumers
  • switchToLatest(): Republishes elements sent by the most recently received AsyncSequence when self is an AsyncSequence of AsyncSequence

More operators and extensions are to come. Pull requests are of course welcome.

GitHub

link
Stars: 279
Last commit: 8 weeks ago
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Release Notes

Oxygen
1 year ago

This release is a bug fix version.

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