Question 1

How to use IcedTasks for lazy task evaluation in F#?

Accepted Answer

Use the ColdTask computation expression, which is an alias for `unit -> Task<'T>`. It allows you to define tasks that don't start until explicitly called, similar to F# Async. For example, `let cold = coldTask { return 42 }` and execute it later with `cold()`.

Question 2

IcedTasks ValueTask vs standard F# Task: which is better?

Accepted Answer

ValueTask reduces allocations in synchronous scenarios, making it better for performance-critical paths, but standard Task is simpler and more widely supported. Choose based on whether your operations often complete synchronously or if you need hot task semantics.

Question 3

How to handle cancellation with IcedTasks CancellableTask?

Accepted Answer

Use the `cancellableTask` CE, which implicitly passes CancellationToken. You can bind against functions with `CancellationToken -> Task<_>` signature or use `CancellableTask.getCancellationToken()` to access the token within the computation, as shown in the README examples.

Question 4

Can I use IAsyncDisposable with IcedTasks AsyncEx?

Accepted Answer

Yes, AsyncEx supports `use` for IAsyncDisposable resources, unlike standard F# Async. This allows proper async cleanup in workflows, such as disposing of database connections or file streams asynchronously.

Question 5

Is IcedTasks compatible with .NET Core 3.1?

Accepted Answer

It targets netstandard2.0, so it should work with .NET Core 3.1, but requires F# 6.0 for Resumable Code. Check your F# version and framework compatibility, as older F# versions won't support the library's features.

Question 6

What are the differences between ColdTask and CancellableTask?

Accepted Answer

ColdTask is for lazy evaluation (`unit -> Task<'T>`) without cancellation, while CancellableTask adds implicit CancellationToken propagation (`CancellationToken -> Task<'T>`). Use ColdTask for restartable tasks and CancellableTask when you need built-in cancellation support.

IcedTasks

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