Scope

A Scope owns finalizers for resources and child fibers. Closing it runs registered cleanup in reverse order, at most once, and waits for cleanup before returning.

Most application code should not construct or mutate Scope directly. Use the Flow-level operations:

• Flow.scoped creates and closes a child scope.
• Flow.scopeAcquireRelease acquires a value into the current scope.
• Flow.scopeResource acquires a reusable Resource description.
• Flow.scopeDisposable and Flow.scopeAsyncDisposable register existing .NET resources.
• Flow.scopeFinalizer and Flow.scopeAsyncFinalizer register custom cleanup.

This runtime lifetime differs from F# use and use!, which dispose when their lexical computation-expression body exits. A Flow scope can intentionally span functions, subflows, stream pulls, and child fibers.

Read the Scopes guide for a timeline of root, lexical, child, and nested lifetimes before using the low-level members listed below.