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Update ok_err.rs #329

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Merged
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Jun 24, 2020
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Update ok_err.rs #329

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7 changes: 4 additions & 3 deletions timely/src/dataflow/operators/ok_err.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,10 @@ use crate::Data;
/// Extension trait for `Stream`.
pub trait OkErr<S: Scope, D: Data> {
/// Takes one input stream and splits it into two output streams.
/// For each record, the supplied closure is called with a reference to
/// the data and its time. If it returns true, the record will be sent
/// to the second returned stream, otherwise it will be sent to the first.
/// For each record, the supplied closure is called with the data.
/// If it returns `Ok(x)`, then `x` will be sent
/// to the first returned stream; otherwise, if it returns `Err(e)`,
/// then `e` will be sent to the second.
///
/// If the result of the closure only depends on the time, not the data,
/// `branch_when` should be used instead.
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