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Simplifying + optimizing Extend impl for Vec

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This commit is contained in:
Sunjay Varma 2019-10-01 23:12:13 -04:00
parent ae146afffc
commit 244c5159df
1 changed files with 4 additions and 6 deletions
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10
src/vec/extend.rs
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@ -9,11 +9,9 @@ impl<T> Extend<T> for Vec<T> {
stream: S, stream: S,
) -> Pin<Box<dyn Future<Output = ()> + 'a>> { ) -> Pin<Box<dyn Future<Output = ()> + 'a>> {
let stream = stream.into_stream(); let stream = stream.into_stream();
Box::pin(async move { //TODO: Add this back in when size_hint is added to Stream/StreamExt
pin_utils::pin_mut!(stream); //let (lower_bound, _) = stream.size_hint();
while let Some(item) = stream.next().await { //self.reserve(lower_bound);
self.push(item); Box::pin(stream.for_each(move |item| self.push(item)))
}
})
} }
} }