ChiaoteNi / StructuredCuoncurrencyDemo

This is a demo project to practice Swift Structured Concurrency

StructuredCuoncurrencyDemo

This is a demo project to practice Swift Structured Concurrency with multiple parts.

Part I: (Jan. 31)

• BasicDemo: This demo will show some basic things like:
  • The basic async await usage and how the executing thread will be. (although you shouldn't think of thread while using Structured Concurrency)
  • async let
  • The generic types of Task
  • yield
• CancelDemo: This demo will show the following things:
  • The isCancelled changes status when the parent task is canceled
  • The isCancelled changes status when other Task throws an error
• GroupingTasksDemo:
  • Just like the naming, this demo will show how to do grouping jobs.
• MainActorDemo:
  • The order of execution
  • @MainActor attribute for function and closure

Part II: (Feb. 28)

• AsyncSequence
  • AsyncMap for Sequence
  • AsyncSequence & AsyncIteratorProtocol protocol
  • AsyncStream & AsyncThrowingStream - onTermination triggered when canceling
  • The implementations of AsyncMapSequence & AsyncThrowingCompactMapSequence.
  • Implement a simple image downloader with the AsyncSequence

Part III: (May 9)

• Actor
  • ActorDemo.playground: - MainActor - GlobalActor - Basic behaviors
  • CustomActorExecutorDemo.playground:
  • ActorReentrancyDemo.playground

Part IV: (Dec. 18)

• TaskLocal
  • Basic behaviors of TaskLocal
  • Some potential usages of TaskLocal
• AsyncResourceLimiter
  • A simple implementation to limit async function execution at the same time.
• Some updates from Swift 5.9 for the Part II and III demonstrations

How to use this demo project?

Part I: All demos work with their demo view, which is compatible with SwiftUI Preview. Please use the demo project in the following way:

• Place the demo view on the left side with the canvas, and the demo itself on the right.
• For example: BasicDemoView (left) / BasicDemo (right).

Part II: Most of the demos are triggered by the test cases, so please use the demo project in the following way:

• Place the demonstrations on the left side, and the test cases on the right.
• For example: AsyncSequenceDemo.swift (left) / AsyncSequenceDemoTest.swift (right)."

Part III: All demonstrations can be found in the following playground files:

• ActorDemo.playground
• CustomActorExecutorDemo.playground
• ActorReentrancyDemo.playground

Part IV: All demonstrations can be found in the following playground files:

• TaskLocalDemo.playground
• TaskLocalPlayground.playground
• ExecutingLimiter.playground

Simply highlight sections of the code and interact directly within the playground.