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perf(util): optimize <BufList as Buf>::has_remaining
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This allows short-circuiting when there is a non-empty chunk.
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tesaguri committed Sep 10, 2023
1 parent 63b67ae commit 22e6876
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5 changes: 5 additions & 0 deletions http-body-util/src/util.rs
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,11 @@ impl<T: Buf> Buf for BufList<T> {
self.bufs.iter().map(|buf| buf.remaining()).sum()
}

#[inline]
fn has_remaining(&self) -> bool {
self.bufs.iter().any(|buf| buf.has_remaining())
}

#[inline]
fn chunk(&self) -> &[u8] {
self.bufs.front().map(Buf::chunk).unwrap_or_default()
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