Hsu.Sg.Sync 2026.101.6

Hsu.Sg.Sync

Generate a synchronous method from an asynchronous method.

Package Version

Name	Source	Stable	Preview
Hsu.Sg.Sync	Nuget
Hsu.Sg.Sync	MyGet

Usages

Install

• Hsu.Sg.Sync
• Nito.AsyncEx.Context
• System.Threading.Tasks.Extensions

You can install the packages from nuget.

<PackageReference Include="Hsu.Sg.Sync" Version="2023.412.14.1">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>

If you want to use ValueTask in .net framework, you should install the package System.Threading.Tasks.Extensions.*

Attributes

Add the Sync attribute and partial keyword to the object that has asynchronous method.

[Sync]
public partial class ClassSamplePartial
{
    public Task PartialTaskAsync()
    {
        return Task.CompletedTask;
    }
}

If you want to specify an asynchronous method to generate a synchronous method, you just need to set [Sync(Only = true)] and add [SyncGen] attribute to the method.

[Sync(Only = true)]
public partial class ClassSampleSyncOnly
{    
    [SyncGen]
    public static ValueTask<Dictionary<string, object>> StaticValueTaskDictionaryAsync()
    {
        return new ValueTask<Dictionary<string, object>>(new Dictionary<string, object>());
    }
}

If you want to ignore generate a synchronous method, you just need to add [SyncGen(Ignore=true)] attribute to the method.

[Sync(Only = true)]
public partial class ClassSampleSyncOnly
{    
    [SyncGen(Ignore = true)]
    public Task AwaitAsync(int index, string name, CancellationToken token = default)
    {
        return Task.CompletedTask;
    }
}

If you want to specify an identifier with generated a synchronous method, you just need to add [SyncGen(Identifier = "AwaitRename")] attribute to the method.

[Sync(Only = true)]
public partial class ClassSampleSyncOnly
{    
    [SyncGen(Identifier = "AwaitRename")]
    public Task AwaitAsync(int index, string name, CancellationToken token = default)
    {
        return Task.CompletedTask;
    }
}

If you just want to generate a abstract or interface synchronous method, you need to add [Sync(Definable =true)] attribute to the abstract class or interface.

[Sync(Definable =true)]
public abstract partial class DefinableClass
{
    public abstract Task AwaitAsync(int index, string name, CancellationToken token);
}

[Sync(Definable =true)]
public abstract partial record DefinableRecord
{
    public abstract Task AwaitAsync(int index, string name, CancellationToken token);
}

References

• Nito.AsyncEx

License

MIT