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Implement Chain with Option fuses #70896

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merged 4 commits into from
Apr 9, 2020
Merged

Implement Chain with Option fuses #70896

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859b8da
Implement Chain with Option fuses
cuviper Apr 7, 2020
8aac107
Reduce callsites in Chain::count()
cuviper Apr 7, 2020
2c4cffd
Reduce callsites in Chain::last()
cuviper Apr 7, 2020
ce8abc6
Avoid extra &mut in Chain::fold and try_fold
cuviper Apr 7, 2020
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Avoid extra &mut in Chain::fold and try_fold
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@cuviper
cuviper committed Apr 7, 2020
commit ce8abc63a7e1fcac4b69574e00a70352e583cec8
4 changes: 2 additions & 2 deletions src/libcore/iter/adapters/chain.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ where
self.a = None;
}
if let Some(ref mut b) = self.b {
acc = b.try_fold(acc, &mut f)?;
acc = b.try_fold(acc, f)?;
self.b = None;
}
Try::from_ok(acc)
Expand All @@ -98,7 +98,7 @@ where
acc = a.fold(acc, &mut f);
}
if let Some(b) = self.b {
acc = b.fold(acc, &mut f);
acc = b.fold(acc, f);
}
acc
}
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