https://github.com/AvdLee/TaskGroupsResultBuilder

A @resultBuilder to use to bundle tasks together.
https://github.com/AvdLee/TaskGroupsResultBuilder

Last synced: 6 days ago
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A @resultBuilder to use to bundle tasks together.

• Host: GitHub
• URL: https://github.com/AvdLee/TaskGroupsResultBuilder
• Owner: AvdLee
• License: mit
• Created: 2023-01-17T08:55:00.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2023-01-20T10:24:05.000Z (almost 2 years ago)
• Last Synced: 2024-10-28T14:40:15.303Z (15 days ago)
• Language: Swift
• Size: 13.7 KB
• Stars: 49
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-swift-async-await - TaskGroupsResultBuilder

README

        
# TaskGroupsResultBuilder

***Make sure to read my article on TaskGroups before exploring this project: [Task Groups in Swift explained with code examples](https://www.avanderlee.com/concurrency/task-groups-in-swift/).***

This project demonstrates how you can use a [@resultBuilder](https://www.avanderlee.com/swift/result-builders/) in combination with TaskGroup.

### Example

```swift

let photoURLs = try await listPhotoURLs(inGallery: "Amsterdam Holiday")

let images = try await withThrowingTaskGroup {

    for photoURL in photoURLs {

        Task { try await downloadPhoto(url: photoURL) }

    }

}

```

Or:

```swift

func taskGroupExampleThree() async {

    let names = await withTaskGroup {

        Task {

            await asyncOperation(name: "Antoine")

        }

        Task {

            await asyncOperation(name: "Maaike")

        }

        Task {

            await asyncOperation(name: "Sep")

        }

    }

    print("Received: \(names)") // Received: ["Antoine", "Maaike", "Sep"]

}

```