Reverted changes to CancellableTaskOption since it isn't implemented yet

Author: 1eyewonder

src/FsToolkit.ErrorHandling.IcedTasks/CancellableTaskOption.fs

@@ -232,6 +232,10 @@ type ValueTaskValueOptionBuilderBase() =
         : CancellableValueTaskValueOption<'T> =
         taskOption
 
+// member inline this.Source(taskOption: ValueTask<'T option>) : CancellableTaskOption<'T> =
+//     taskOption.AsTask()
+
+
 type ValueTaskValueOptionBuilder() =
 
     inherit ValueTaskValueOptionBuilderBase()
@@ -351,6 +355,76 @@ type TaskOptionBuilder() =
             return ValueOption.toOption r
         }
 
+
+// type BackgroundTaskOptionBuilder() =
+
+//     inherit TaskOptionBuilderBase()
+
+//     static member RunDynamic(code: TaskOptionCode<'T, 'T>) : CancellableTaskOption<'T> =
+//         // backgroundTask { .. } escapes to a background thread where necessary
+//         // See spec of ConfigureAwait(false) at https://devblogs.microsoft.com/dotnet/configureawait-faq/
+//         if
+//             isNull SynchronizationContext.Current
+//             && obj.ReferenceEquals(TaskScheduler.Current, TaskScheduler.Default)
+//         then
+//             TaskOptionBuilder.RunDynamic(code)
+//         else
+//             Task.Run<'T option>(fun () -> TaskOptionBuilder.RunDynamic(code))
+
+
+//     //// Same as TaskBuilder.Run except the start is inside Task.Run if necessary
+//     member inline _.Run(code: TaskOptionCode<'T, 'T>) : CancellableTaskOption<'T> =
+//         if __useResumableCode then
+//             __stateMachine<TaskOptionStateMachineData<'T>, CancellableTaskOption<'T>>
+//                 (MoveNextMethodImpl<_>(fun sm ->
+//                     //-- RESUMABLE CODE START
+//                     __resumeAt sm.ResumptionPoint
+
+//                     try
+//                         let __stack_code_fin = code.Invoke(&sm)
+
+//                         if
+//                             __stack_code_fin
+//                             && not sm.Data.IsTaskCompleted
+//                         then
+//                             sm.Data.MethodBuilder.SetResult(sm.Data.Result.Value)
+//                     with exn ->
+//                         sm.Data.MethodBuilder.SetException exn
+//                 //-- RESUMABLE CODE END
+//                 ))
+//                 (SetStateMachineMethodImpl<_>(fun sm state ->
+//                     sm.Data.MethodBuilder.SetStateMachine(state)
+//                 ))
+//                 (AfterCode<_, CancellableTaskOption<'T>>(fun sm ->
+//                     // backgroundTask { .. } escapes to a background thread where necessary
+//                     // See spec of ConfigureAwait(false) at https://devblogs.microsoft.com/dotnet/configureawait-faq/
+//                     if
+//                         isNull SynchronizationContext.Current
+//                         && obj.ReferenceEquals(TaskScheduler.Current, TaskScheduler.Default)
+//                     then
+//                         sm.Data.MethodBuilder <- AsyncTaskOptionMethodBuilder<'T>.Create()
+//                         sm.Data.MethodBuilder.Start(&sm)
+//                         sm.Data.MethodBuilder.Task
+//                     else
+//                         let sm = sm // copy contents of state machine so we can capture it
+
+//                         Task.Run<'T option>(fun () ->
+//                             let mutable sm = sm // host local mutable copy of contents of state machine on this thread pool thread
+//                             sm.Data.MethodBuilder <- AsyncTaskOptionMethodBuilder<'T>.Create()
+//                             sm.Data.MethodBuilder.Start(&sm)
+//                             sm.Data.MethodBuilder.Task
+//                         )
+//                 ))
+//         else
+//             BackgroundTaskOptionBuilder.RunDynamic(code)
+
+// [<AutoOpen>]
+// module TaskOptionBuilder =
+
+//     let taskOption = ValueTaskValueOptionBuilder()
+// let backgroundTaskOption = BackgroundTaskOptionBuilder()
+
+
 [<AutoOpen>]
 module TaskOptionCEExtensionsLowPriority =
     // Low priority extensions
@@ -552,3 +626,36 @@ module TaskOptionCEExtensionsHighPriority =
             this.Bind(task, (fun v -> this.Return v))
 
         member inline _.Source(s: #seq<_>) = s
+
+// [<AutoOpen>]
+// module TaskOptionCEExtensionsMediumPriority =
+
+//     // Medium priority extensions
+//     type TaskOptionBuilderBase with
+
+//         member inline this.Source(t: Task<'T>) : CancellableTaskOption<'T> =
+//             t
+//             |> Task.map Some
+
+//         member inline this.Source(t: Task) : CancellableTaskOption<unit> =
+//             task {
+//                 do! t
+//                 return Some()
+//             }
+
+//         member inline this.Source(t: ValueTask<'T>) : CancellableTaskOption<'T> =
+//             t
+//             |> Task.mapV Some
+
+//         member inline this.Source(t: ValueTask) : CancellableTaskOption<unit> =
+//             task {
+//                 do! t
+//                 return Some()
+//             }
+
+//         member inline this.Source(opt: Option<'T>) : CancellableTaskOption<'T> = Task.FromResult opt
+
+//         member inline this.Source(computation: Async<'T>) : CancellableTaskOption<'T> =
+//             computation
+//             |> Async.map Some
+//             |> Async.StartImmediateAsTask