Function try_alloc_iter

fn try_alloc_iter<T>(
    iter: impl ExactSizeIterator<Item = Option<T>>,
) -> Option<&'static [T]>

Attempts to allocate items from an iterator within a thread-local memory arena.

The function takes an iterator of optional items and tries to collect these items into a Bump-allocated vector within a thread-local storage arena. This is achieved by using the collect_in method, which collects items into a Bump allocator. If the collection is successful, the function converts the vector into a bump slice, returning a static reference to the slice. If any item in the iterator is None, or if the allocation fails, the function returns None, indicating that the items could not be allocated in the bump arena.