Transforming the result of await ends up being annoying in terms of precedence I generally prefer to introduce a local var, but as you noted, that prevents expression-bodied methods. We occasionally forget ConfigureAwait(false) – this is solvable with tooling to some extent Since you’re working on a library and should use ConfigureAwait(false) everywhere, it may … Read more
The goal of gulp-cli is to let you use gulp like a global program, but without installing gulp globally. For example if you installed gulp 3.9.1 globally and your project testGulp4 has gulp 4.0 installed locally, what would happen if you run gulp -v into testGulp4? Without gulp-cli globally installed : CLI version 3.9.1 In … Read more
Calling an async method returns a hot task, a task that has already been started. So there is no actual code necessary to force it to run. According MSDN (thanks to Stephen Cleary) the Task-based Asynchronous Pattern (TAP) pattern requires returned tasks to be hot. That means that all tasks, except those created with new … Read more
The issue is that invoke only invokes the task if it is needed. Running rake –trace shows: (in /tmp/ruby) ** Invoke default (first_time) ** Execute default ** Invoke list (first_time) ** Execute list Hello level 1 ** Invoke list ** Invoke list So you can see it’s trying to invoke the task :list two more … Read more
CancellationToken.Register returns a CancellationTokenRegistration instance. If you call Dispose on that instance, your registration will be removed.
It is there to make it easier for later stage to implement async code calls without having to alter the signature thus preventing having to refactor the calling code. Whilst the scaffolded sample code is synchronous, the Template Studio is designed specifically around an async data access layer, you are expected to implement your own … Read more
You’re not waiting on a task with an OnlyOnFaulted continuation – you’re waiting on that continuation (returned by ContinueWith). The continuation is never going to fire because the original task returned normally, so it’s acting as if it were cancelled. Makes sense to me. I suspect you want to create the task, add the continuation, … Read more
Task.FromResult(whatever) works for Task<TResult>, but until 4.6 there was nothing for the nongeneric task. You could use FromResult with a dummy value and implicitly cast it to Task, but that somewhat obfuscates the intent (you’re not really returning any asynchronous value) and allocates objects underneath (whereas CompletedTask can be cached and shared between all callers). … Read more
Yes, any coroutine that’s running inside your event loop will block other coroutines and tasks from running, unless it Calls another coroutine using yield from or await (if using Python 3.5+). Returns. This is because asyncio is single-threaded; the only way for the event loop to run is for no other coroutine to be actively … Read more