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Add type alias BoxFusedStream #2186

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Add type alias BoxFusedStream #2186

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9 changes: 9 additions & 0 deletions futures-core/src/stream.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,15 @@ where
}
}

/// An owned dynamically typed [`FusedStream`] for use in cases where you can't
/// statically type your result or need to add some indirection.
#[cfg(feature = "alloc")]
pub type BoxFusedStream<'a, T> = Pin<alloc::boxed::Box<dyn FusedStream<Item = T> + Send + 'a>>;

/// `BoxFusedStream`, but without the `Send` requirement.
#[cfg(feature = "alloc")]
pub type LocalBoxFusedStream<'a, T> = Pin<alloc::boxed::Box<dyn FusedStream<Item = T> + 'a>>;

/// A stream which tracks whether or not the underlying stream
/// should no longer be polled.
///
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