Resources (cleanup)

When a dependency needs cleanup (close/dispose/release), register it as a scoped service using a generator factory.

Sync cleanup (generator)

See the runnable script in Scopes (Generator factories section).

Async cleanup (async generator)

See the runnable script in Async (Async generator cleanup section).

Important

Always put cleanup in a finally block. Code after yield is not guaranteed to run because closing a generator raises GeneratorExit at the yield point.