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How to use ValueTask class of Microsoft.Coyote.Rewriting.Types.Threading.Tasks package

Best Coyote code snippet using Microsoft.Coyote.Rewriting.Types.Threading.Tasks.ValueTask

TypeRewritingPass.cs

Source:TypeRewritingPass.cs

...27            this.KnownTypes[NameCache.AsyncTaskMethodBuilder] =28                typeof(Types.Runtime.CompilerServices.AsyncTaskMethodBuilder);29            this.KnownTypes[NameCache.GenericAsyncTaskMethodBuilder] =30                typeof(Types.Runtime.CompilerServices.AsyncTaskMethodBuilder<>);31            this.KnownTypes[NameCache.AsyncValueTaskMethodBuilder] =32                typeof(Types.Runtime.CompilerServices.AsyncValueTaskMethodBuilder);33            this.KnownTypes[NameCache.GenericAsyncValueTaskMethodBuilder] =34                typeof(Types.Runtime.CompilerServices.AsyncValueTaskMethodBuilder<>);35            this.KnownTypes[NameCache.TaskAwaiter] = typeof(Runtime.CompilerServices.TaskAwaiter);36            this.KnownTypes[NameCache.GenericTaskAwaiter] = typeof(Runtime.CompilerServices.TaskAwaiter<>);37            this.KnownTypes[NameCache.ValueTaskAwaiter] = typeof(Runtime.CompilerServices.ValueTaskAwaiter);38            this.KnownTypes[NameCache.GenericValueTaskAwaiter] = typeof(Runtime.CompilerServices.ValueTaskAwaiter<>);39            this.KnownTypes[NameCache.ConfiguredTaskAwaitable] =40                typeof(Types.Runtime.CompilerServices.ConfiguredTaskAwaitable);41            this.KnownTypes[NameCache.ConfiguredTaskAwaiter] =42                typeof(Types.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter);43            this.KnownTypes[NameCache.GenericConfiguredTaskAwaitable] =44                typeof(Types.Runtime.CompilerServices.ConfiguredTaskAwaitable<>);45            this.KnownTypes[NameCache.GenericConfiguredTaskAwaiter] =46                typeof(Types.Runtime.CompilerServices.ConfiguredTaskAwaitable<>.ConfiguredTaskAwaiter);47            this.KnownTypes[NameCache.ConfiguredValueTaskAwaitable] =48                typeof(Types.Runtime.CompilerServices.ConfiguredValueTaskAwaitable);49            this.KnownTypes[NameCache.ConfiguredValueTaskAwaiter] =50                typeof(Types.Runtime.CompilerServices.ConfiguredValueTaskAwaitable.ConfiguredValueTaskAwaiter);51            this.KnownTypes[NameCache.GenericConfiguredValueTaskAwaitable] =52                typeof(Types.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<>);53            this.KnownTypes[NameCache.GenericConfiguredValueTaskAwaiter] =54                typeof(Types.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<>.ConfiguredValueTaskAwaiter);55            this.KnownTypes[NameCache.YieldAwaitable] =56                typeof(Types.Runtime.CompilerServices.YieldAwaitable);57            this.KnownTypes[NameCache.YieldAwaiter] =58                typeof(Types.Runtime.CompilerServices.YieldAwaitable.YieldAwaiter);59            // Populate the map with the default task-based types.60            this.KnownTypes[NameCache.Task] = typeof(Types.Threading.Tasks.Task);61            this.KnownTypes[NameCache.GenericTask] = typeof(Types.Threading.Tasks.Task<>);62            this.KnownTypes[NameCache.ValueTask] = typeof(Types.Threading.Tasks.ValueTask);63            this.KnownTypes[NameCache.GenericValueTask] = typeof(Types.Threading.Tasks.ValueTask<>);64#if NET65            this.KnownTypes[NameCache.TaskCompletionSource] = typeof(Types.Threading.Tasks.TaskCompletionSource);66#endif67            this.KnownTypes[NameCache.GenericTaskCompletionSource] = typeof(Types.Threading.Tasks.TaskCompletionSource<>);68            this.KnownTypes[NameCache.TaskExtensions] = typeof(Types.TaskExtensions);69            this.KnownTypes[NameCache.TaskFactory] = typeof(Types.Threading.Tasks.TaskFactory);70            this.KnownTypes[NameCache.GenericTaskFactory] = typeof(Types.Threading.Tasks.TaskFactory<>);71            this.KnownTypes[NameCache.TaskParallel] = typeof(Types.Threading.Tasks.Parallel);72            // Populate the map with the known synchronization types.73            this.KnownTypes[NameCache.Monitor] = typeof(Types.Threading.Monitor);74            this.KnownTypes[NameCache.SemaphoreSlim] = typeof(Types.Threading.SemaphoreSlim);75#if NET || NETCOREAPP3_176            // Populate the map with the known HTTP and web-related types.77            this.KnownTypes[NameCache.HttpClient] = typeof(Types.Net.Http.HttpClient);...

ValueTask.cs

Source:ValueTask.cs

...8using SystemTask = System.Threading.Tasks.Task;9using SystemTaskContinuationOptions = System.Threading.Tasks.TaskContinuationOptions;10using SystemTaskCreationOptions = System.Threading.Tasks.TaskCreationOptions;11using SystemTasks = System.Threading.Tasks;12using SystemValueTask = System.Threading.Tasks.ValueTask;13namespace Microsoft.Coyote.Rewriting.Types.Threading.Tasks14{15    /// <summary>16    /// Provides methods for creating value tasks that can be controlled during testing.17    /// </summary>18    /// <remarks>This type is intended for compiler use rather than use directly in code.</remarks>19    [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]20    public static class ValueTask21    {22#if NET23        /// <summary>24        /// Gets a value task that has already completed successfully.25        /// </summary>26        public static SystemValueTask CompletedTask { get; } = SystemValueTask.CompletedTask;27        /// <summary>28        /// Creates a value task that has completed successfully with the specified result.29        /// </summary>30        public static SystemTasks.ValueTask<TResult> FromResult<TResult>(TResult result) =>31            SystemValueTask.FromResult(result);32        /// <summary>33        /// Creates a value task that has completed due to cancellation with the specified cancellation token.34        /// </summary>35        public static SystemValueTask FromCanceled(SystemCancellationToken cancellationToken) =>36            SystemValueTask.FromCanceled(cancellationToken);37        /// <summary>38        /// Creates a value task that has completed due to cancellation with the specified cancellation token.39        /// </summary>40        public static SystemTasks.ValueTask<TResult> FromCanceled<TResult>(SystemCancellationToken cancellationToken) =>41            SystemValueTask.FromCanceled<TResult>(cancellationToken);42        /// <summary>43        /// Creates a value task that has completed with the specified exception.44        /// </summary>45        public static SystemValueTask FromException(Exception exception) => SystemValueTask.FromException(exception);46        /// <summary>47        /// Creates a value task that has completed with the specified exception.48        /// </summary>49        public static SystemTasks.ValueTask<TResult> FromException<TResult>(Exception exception) =>50            SystemValueTask.FromException<TResult>(exception);51#endif52        /// <summary>53        /// Retrieves a task object that represents this value task.54        /// </summary>55        public static SystemTask AsTask(in SystemValueTask task) => task.AsTask();56        /// <summary>57        /// Returns a value task awaiter for the specified task.58        /// </summary>59        public static ValueTaskAwaiter GetAwaiter(ref SystemValueTask task) => new ValueTaskAwaiter(ref task);60        /// <summary>61        /// Configures an awaiter used to await this task.62        /// </summary>63        public static ConfiguredValueTaskAwaitable ConfigureAwait(64            ref SystemValueTask task, bool continueOnCapturedContext) =>65            new ConfiguredValueTaskAwaitable(ref task, continueOnCapturedContext);66    }67    /// <summary>68    /// Provides methods for creating generic value tasks that can be controlled during testing.69    /// </summary>70    /// <remarks>This type is intended for compiler use rather than use directly in code.</remarks>71    [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]72    public static class ValueTask<TResult>73    {74#pragma warning disable CA1000 // Do not declare static members on generic types75        /// <summary>76        /// The default generic task factory.77        /// </summary>78        private static SystemTasks.TaskFactory<TResult> DefaultFactory = new SystemTasks.TaskFactory<TResult>();79        /// <summary>80        /// Provides access to factory methods for creating controlled generic task instances.81        /// </summary>82        public static SystemTasks.TaskFactory<TResult> Factory83        {84            get85            {86                var runtime = CoyoteRuntime.Current;87                if (runtime.SchedulingPolicy is SchedulingPolicy.None)88                {89                    return DefaultFactory;90                }91                // TODO: cache this per runtime.92                return new SystemTasks.TaskFactory<TResult>(SystemCancellationToken.None,93                    SystemTaskCreationOptions.HideScheduler, SystemTaskContinuationOptions.HideScheduler,94                    runtime.ControlledTaskScheduler);95            }96        }97        /// <summary>98        /// Gets the result value of the specified generic task.99        /// </summary>100#pragma warning disable CA1707 // Remove the underscores from member name101#pragma warning disable SA1300 // Element should begin with an uppercase letter102#pragma warning disable IDE1006 // Naming Styles103        public static TResult get_Result(ref SystemTasks.ValueTask<TResult> task)104        {105            var runtime = CoyoteRuntime.Current;106            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&107                ValueTaskAwaiter.TryGetTask<TResult>(ref task, out SystemTasks.Task<TResult> innerTask))108            {109                TaskServices.WaitUntilTaskCompletes(runtime, innerTask);110            }111            return task.Result;112        }113#pragma warning restore CA1707 // Remove the underscores from member name114#pragma warning restore SA1300 // Element should begin with an uppercase letter115#pragma warning restore IDE1006 // Naming Styles116        /// <summary>117        /// Retrieves a task object that represents this value task.118        /// </summary>119        public static SystemTasks.Task<TResult> AsTask(in SystemTasks.ValueTask<TResult> task) => task.AsTask();120        /// <summary>121        /// Returns a generic task awaiter for the specified generic task.122        /// </summary>123        public static ValueTaskAwaiter<TResult> GetAwaiter(ref SystemTasks.ValueTask<TResult> task) =>124            new ValueTaskAwaiter<TResult>(ref task);125        /// <summary>126        /// Configures an awaiter used to await this task.127        /// </summary>128        public static ConfiguredValueTaskAwaitable<TResult> ConfigureAwait(129            ref SystemTasks.ValueTask<TResult> task, bool continueOnCapturedContext) =>130            new ConfiguredValueTaskAwaitable<TResult>(ref task, continueOnCapturedContext);131#pragma warning restore CA1000 // Do not declare static members on generic types132    }133}...

TaskProvider.cs

Source:TaskProvider.cs

...43    /// </summary>44    /// <remarks>45    /// We do not rewrite this class in purpose to test scenarios with partially rewritten code.46    /// </remarks>47    public static class ValueTaskProvider48    {49        public static ValueTask GetTask() => ValueTask.CompletedTask;50        public static ValueTask<T> GetGenericTask<T>() => ValueTask.FromResult<T>(default(T));51    }52    /// <summary>53    /// Helper class for value task rewriting tests.54    /// </summary>55    /// <remarks>56    /// We do not rewrite this class in purpose to test scenarios with partially rewritten code.57    /// </remarks>58    public static class GenericValueTaskProvider<TLeft, TRight>59    {60        public static class Nested<TNested>61        {62            public static ValueTask GetTask() => ValueTask.CompletedTask;63            public static ValueTask<T> GetGenericMethodTask<T>() => ValueTask.FromResult<T>(default(T));64            public static ValueTask<TRight> GetGenericTypeTask<T>() => ValueTask.FromResult<TRight>(default(TRight));65        }66    }67#endif68#pragma warning restore CA1000 // Do not declare static members on generic types69}...

ValueTask

Using AI Code Generation

1using System;2using System.Threading.Tasks;3{4    {5        public ValueTask(Task task)6        {7            this.Task = task;8        }9        public Task Task { get; }10    }11}12using System;13using System.Threading.Tasks;14{15    {16        public ValueTask(Task<T> task)17        {18            this.Task = task;19        }20        public Task<T> Task { get; }21    }22}23using System;24using System.Threading.Tasks;25{26    {27        public ValueTask(Task<TResult> task)28        {29            this.Task = task;30        }31        public Task<TResult> Task { get; }32    }33}34using System;35using System.Threading.Tasks;36{37    {38        public ValueTask(Task<T> task)39        {40            this.Task = task;41        }42        public Task<T> Task { get; }43    }44}45using System;46using System.Threading.Tasks;47{48    {49        public ValueTask(Task<TResult> task)50        {51            this.Task = task;52        }53        public Task<TResult> Task { get; }54    }55}56using System;57using System.Threading.Tasks;58{59    {60        public ValueTask(Task task)61        {62            this.Task = task;

ValueTask

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            await Task.Delay(1000);8        }9    }10}11using System.Threading.Tasks;12{13    {14        static async Task Main(string[] args)15        {16            await Task.Delay(1000);17        }18    }19}20using System.Threading.Tasks;21{22    {23        static async Task Main(string[] args)24        {25            await Task.Delay(1000);26        }27    }28}29using System.Threading.Tasks;30{31    {32        static async Task Main(string[] args)33        {34            await Task.Delay(1000);35        }36    }37}38using System.Threading.Tasks;39{40    {41        static async Task Main(string[] args)42        {43            await Task.Delay(1000);44        }45    }46}47using System.Threading.Tasks;48{49    {50        static async Task Main(string[] args)51        {52            await Task.Delay(1000);53        }54    }55}56using System.Threading.Tasks;57{58    {59        static async Task Main(string[] args)60        {61            await Task.Delay(1000);62        }63    }64}65using System.Threading.Tasks;66{67    {68        static async Task Main(string[] args)69        {70            await Task.Delay(1000);71        }72    }73}74using System.Threading.Tasks;

ValueTask

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;3using System;4{5    {6        static async ValueTask<int> Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            return 0;10        }11    }12}13using System.Threading.Tasks;14using System;15{16    {17        static async ValueTask<int> Main(string[] args)18        {19            Console.WriteLine("Hello World!");20            return 0;21        }22    }23}24using System.Threading.Tasks;25using System;26{27    {28        static async Task<int> Main(string[] args)29        {30            Console.WriteLine("Hello World!");31            return 0;32        }33    }34}35using System.Threading.Tasks;36using System;37{38    {39        static async Task Main(string[] args)40        {41            Console.WriteLine("Hello World!");42        }43    }44}45using System.Threading.Tasks;46using System;47{48    {49        static async Task Main(string[] args)50        {51            Console.WriteLine("Hello World!");52        }53    }54}55using System.Threading.Tasks;56using System;57{58    {59        static async Task Main(string[] args)60        {61            Console.WriteLine("Hello World!");62        }63    }64}65using System.Threading.Tasks;66using System;67{68    {69        static async Task Main(string[] args)70        {71            Console.WriteLine("Hello World!");72        }73    }74}75using System.Threading.Tasks;76using System;77{

ValueTask

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;2using System.Threading.Tasks;3{4    static async ValueTask<int> Foo()5    {6        return await Task.FromResult(1);7    }8    static async ValueTask Main()9    {10        var t = Foo();11        var res = await t;12        System.Console.WriteLine(res);13    }14}15using System.Threading.Tasks;16{17    static async ValueTask<int> Foo()18    {19        return await Task.FromResult(1);20    }21    static async ValueTask Main()22    {23        var t = Foo();24        var res = await t;25        System.Console.WriteLine(res);26    }27}28Attachments: CoyotePackages.zip (Size: 1.4MB / Downloads: 3)29Attachments: CoyoteTest.zip (Size: 1.8MB / Downloads: 2)

ValueTask

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;2using System;3using System.Threading.Tasks;4{5    static async Task Main(string[] args)6    {7        var vt = new ValueTask<int>(42);8        Console.WriteLine(vt.Result);9        await vt;10    }11}12using System;13using System.Threading.Tasks;14{15    static async Task Main(string[] args)16    {17        var vt = new ValueTask<int>(42);18        Console.WriteLine(vt.Result);19        await vt;20    }21}22error CS0234: The type or namespace name 'ValueTask' does not exist in the namespace 'Microsoft.Coyote.Rewriting.Types.Threading.Tasks' (are you missing an assembly reference?)23Error	CS0234	The type or namespace name 'ValueTask' does not exist in the namespace 'Microsoft.Coyote.Rewriting.Types.Threading.Tasks' (are you missing an assembly reference?)	ProjectName	C:\Users\username\source\repos\ProjectName\ProjectName\Program.cs	1	Active

ValueTask

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;3{4    static async ValueTask Main()5    {6        var x = await Task.FromResult(1);7        System.Console.WriteLine(x);8    }9}10using System.Threading.Tasks;11{12    static async ValueTask Main()13    {14        var x = await Task.FromResult(1);15        System.Console.WriteLine(x);16    }17}

ValueTask

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;2using System.Threading.Tasks;3{4    {5        public async ValueTask<int> GetInt()6        {7            await Task.Delay(10);8            return 10;9        }10    }11}12using System.Threading.Tasks;13{14    {15        public async ValueTask<int> GetInt()16        {17            await Task.Delay(10);18            return 10;19        }20    }21}22using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;23using System.Threading.Tasks;24{25    {26        public async ValueTask<int> GetInt()27        {28            await Task.Delay(10);29            return 10;30        }31    }32}33using System.Threading.Tasks;34{35    {36        public async ValueTask<int> GetInt()37        {38            await Task.Delay(10);39            return 10;40        }41    }42}

ValueTask

Using AI Code Generation

1    using System.Threading.Tasks;2    using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;3    {4        {5            public ValueTask<int> FooAsync()6            {7                return new ValueTask<int>(42);8            }9        }10    }11    using System.Threading.Tasks;12    {13        {14            public ValueTask<int> FooAsync()15            {16                return new ValueTask<int>(42);17            }18        }19    }20We welcome contributions from the community. If you have any questions, please [open an issue](

ValueTask

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Rewriting.Types.Threading.Tasks;4{5    {6        static async ValueTask<int> Main(string[] args)7        {8            var t = Task.Run(() => { });9            await t;10            return 0;11        }12    }13}14using System;15using System.Threading.Tasks;16{17    {18        static async ValueTask<int> Main(string[] args)19        {20            var t = Task.Run(() => { });21            await t;22            return 0;23        }24    }25}26using System;27using System.Threading.Tasks;28using System.Threading.Tasks.Extensions;29{30    {31        static async ValueTask<int> Main(string[] args)32        {33            var t = Task.Run(() => { });34            await t;35            return 0;36        }37    }38}

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