AsyncLazy

AsyncLazy<T> is a small helper for caching a value that is computed on-demand asynchronously, with the extra ability to clear the cached value and recompute it later.

When To Use It

• You want to lazily create a value via an async factory (Func<Task<T>>).
• You want a simple "compute once, then cache" primitive for async values.
• You want to invalidate the cached value and recompute it later (ClearValue()).

Basic Usage

using Garyon.Objects.Advanced;

var lazy = new AsyncLazy<int>(async () =>
{
    await Task.Delay(10);
    return 42;
});

// Triggers factory on first call:
var value1 = await lazy.GetValueAsync();

// Reuses cached task/value:
var value2 = await lazy.GetValueAsync();

lazy.ClearValue();

// Factory runs again after invalidation:
var value3 = await lazy.GetValueAsync();

Notes

• IsValueCreated indicates whether the factory has been invoked.
• ValueTaskOrDefault exposes the cached task (or null before first use).

API Reference

• AsyncLazy