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Neil Sarkar 2021-02-03 10:18:32 -05:00 committed by GitHub
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README.md
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@ -138,7 +138,7 @@ async UniTask<string> DemoAsync()
Basics of UniTask and AsyncOperation Basics of UniTask and AsyncOperation
--- ---
UniTask features rely on C# 7.0([task-like custom async method builder feature](https://github.com/dotnet/roslyn/blob/master/docs/features/task-types.md)) so the required Unity version is after `Unity 2018.3`, the official oldest version supported is `Unity 2018.4.13f1`. UniTask features rely on C# 7.0([task-like custom async method builder feature](https://github.com/dotnet/roslyn/blob/master/docs/features/task-types.md)) so the required Unity version is after `Unity 2018.3`, the official lowest version supported is `Unity 2018.4.13f1`.
Why is UniTask(custom task-like object) required? Because Task is too heavy and not matched to Unity threading (single-thread). UniTask does not use threads and SynchronizationContext/ExecutionContext because Unity's asynchronous object is automaticaly dispatched by Unity's engine layer. It achieves faster and lower allocation, and is completely integrated with Unity. Why is UniTask(custom task-like object) required? Because Task is too heavy and not matched to Unity threading (single-thread). UniTask does not use threads and SynchronizationContext/ExecutionContext because Unity's asynchronous object is automaticaly dispatched by Unity's engine layer. It achieves faster and lower allocation, and is completely integrated with Unity.
@ -213,7 +213,7 @@ await task;
await task; // NG, throws Exception await task; // NG, throws Exception
``` ```
Store to the class field, you can use `UniTask.Lazy` that guarantees calling multiple times. `.Preserve()` allows for multiple calls (internally cached results). This is useful when there are multiple calls in a function scope. Store to the class field, you can use `UniTask.Lazy` that supports calling multiple times. `.Preserve()` allows for multiple calls (internally cached results). This is useful when there are multiple calls in a function scope.
Also `UniTaskCompletionSource` can await multiple times and await from many callers. Also `UniTaskCompletionSource` can await multiple times and await from many callers.