Merge branch 'fix-il2cpp'

README.md

@@ -690,6 +690,8 @@ foreach (var (type, size) in TaskPool.GetCacheSizeInfo())
 }
 ```
 
+> In UnityEditor profiler shows allocation of compiler generated AsyncStateMachine but it only occurs in debug(development) build. C# Compiler generate AsyncStateMachine as class on Debug build and as struct on Release build. And also currently due to IL2CPP limitation, in IL2CPP build, UniTask do boxing AsyncStateMachine when needed so sometimes exists `one` allocation.
+
 API References
 ---
 UniTask's API References is hosted at [cysharp.github.io/UniTask](https://cysharp.github.io/UniTask/api/Cysharp.Threading.Tasks.html) by [DocFX](https://dotnet.github.io/docfx/) and [Cysharp/DocfXTemplate](https://github.com/Cysharp/DocfxTemplate).

src/UniTask/Assets/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs

@@ -45,7 +45,11 @@ namespace Cysharp.Threading.Tasks.CompilerServices
     {
         static TaskPool<AsyncUniTaskVoid<TStateMachine>> pool;
 
+#if ENABLE_IL2CPP
         IAsyncStateMachine stateMachine; // unfortunatelly boxed to fix IL2CPP issue.
+#else
+        TStateMachine stateMachine;
+#endif
 
         public Action MoveNext { get; }
 
@@ -113,7 +117,11 @@ namespace Cysharp.Threading.Tasks.CompilerServices
     {
         static TaskPool<AsyncUniTask<TStateMachine>> pool;
 
+#if ENABLE_IL2CPP
         IAsyncStateMachine stateMachine; // unfortunatelly boxed to fix IL2CPP issue.
+#else
+        TStateMachine stateMachine;
+#endif
 
         public Action MoveNext { get; }
 
@@ -224,7 +232,11 @@ namespace Cysharp.Threading.Tasks.CompilerServices
     {
         static TaskPool<AsyncUniTask<TStateMachine, T>> pool;
 
+#if ENABLE_IL2CPP
         IAsyncStateMachine stateMachine; // unfortunatelly boxed to fix IL2CPP issue.
+#else
+        TStateMachine stateMachine;
+#endif
 
         public Action MoveNext { get; }