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Type:
New Feature
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Resolution: Fixed
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Priority:
Critical - P2
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Affects Version/s: 2.0.0-alpha.1
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Component/s: None
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Currently, the session used by a SessionCursorHandle cannot be reborrowed within the while let loop that iterates over the cursor. This makes using cursors with sessions pretty clunky.
repro:
let mut cursor = coll.find_with_session(doc! {}, None, &mut session).await?
// cursor does not retain the reference, so it can be used here
coll.run_command_with_session(doc! { "ping": 1 }, None, &mut session).await?;
while let Some(doc) = cursor.with_session(&mut_session).next().await? {
println!("{}", doc?);
// following line errors saying the session is already borrowed
coll.run_command_with_session(doc! { "ping": 1 }, None, &mut session).await?;
}