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Add Drop impl for linked_list::DrainFilter

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This commit is contained in:
Thayne McCombs 2017-12-07 22:20:25 -07:00
parent c8ddf28527
commit 37335d3f43
1 changed files with 9 additions and 0 deletions
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9
src/liballoc/linked_list.rs
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@ -1071,6 +1071,15 @@ impl<'a, T, F> Iterator for DrainFilter<'a, T, F>
}
}
#[unstable(feature = "drain_filter", reason = "recently added", issue = "43244")]
impl<'a, T, F> Drop for DrainFilter<'a, T, F>
where F: FnMut(&mut T) -> bool,
{
fn drop(&mut self) {
for _ in self { }
}
}
#[unstable(feature = "drain_filter", reason = "recently added", issue = "43244")]
impl<'a, T: 'a + fmt::Debug, F> fmt::Debug for DrainFilter<'a, T, F>
where F: FnMut(&mut T) -> bool