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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/10/20 11:44:49 UTC

[GitHub] [arrow-rs] crepererum commented on issue #2901: API to take back ownership of an ArrayRef

crepererum commented on issue #2901:
URL: https://github.com/apache/arrow-rs/issues/2901#issuecomment-1285385271

   I think `Array` needs a new method for this to work. In addition to `fn as_any(&self) -> &dyn Any` it should also provide `fn as_any_arc(self: &Arc<Self>) -> &Arc<dyn Any + Send + Sync + 'static>` (IIRC this is allowed by current Rust since `Arc` is special). From there you can [downcast the `Arc`](https://doc.rust-lang.org/std/sync/struct.Arc.html#method.downcast) and (if the user wants to) unwrap it (however for most cases it's OK to keep the concrete array type within the `Arc`).


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