Method update_in_scope

src/scope.rs:1350–1368

(
            &'env mut self,
            scope: &'scope Scope<'scope, 'env>,
            op: &'scope OP,
        )

        THREAD_POOL.depopulate();
    }

    /// Tests that nesting two scopes on different workers will not deadlock.
    #[test]
    fn scope_nesting_new_worker() {
        static THREAD_POOL: ThreadPool = ThreadPool::new();
        THREAD_POOL.resize_to_available();

        let mut completed = false;

        THREAD_POOL.with_worker(|worker| {
            worker.scope(|scope| {
                scope.spawn(|_: &Worker| {
                    // Creating a new worker instead of reusing the old one is
                    // bad form, but we may as well test it.
                    THREAD_POOL.with_worker(|worker| {
                        worker.scope(|scope| {
                            scope.spawn(|_: &Worker| {
                                completed = true;
                            });
                        });
                    });
                });