OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

implement Clone for various iterators

Browse Source
This commit is contained in:
Andrew Paseltiner 2015-03-23 08:50:47 -04:00
parent b0aad7dd4f
commit 64532f7f00
3 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/libcollections/bit.rs
View File

@ -1792,12 +1792,16 @@ struct TwoBitPositions<'a> {
next_idx: usize
}
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Union<'a>(TwoBitPositions<'a>);
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Intersection<'a>(Take<TwoBitPositions<'a>>);
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Difference<'a>(TwoBitPositions<'a>);
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct SymmetricDifference<'a>(TwoBitPositions<'a>);

1
src/libcollections/vec_deque.rs
View File

@ -1573,6 +1573,7 @@ impl<'a, T> DoubleEndedIterator for IterMut<'a, T> {
impl<'a, T> ExactSizeIterator for IterMut<'a, T> {}
/// A by-value VecDeque iterator
#[derive(Clone)]
#[stable(feature = "rust1", since = "1.0.0")]
pub struct IntoIter<T> {
inner: VecDeque<T>,

25
src/libstd/collections/hash/set.rs
View File

@ -853,6 +853,9 @@ impl<T, S> IntoIterator for HashSet<T, S>
}
}
impl<'a, K> Clone for Iter<'a, K> {
fn clone(&self) -> Iter<'a, K> { Iter { iter: self.iter.clone() } }
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, K> Iterator for Iter<'a, K> {
type Item = &'a K;
@ -889,6 +892,12 @@ impl<'a, K> ExactSizeIterator for Drain<'a, K> {
fn len(&self) -> usize { self.iter.len() }
}
impl<'a, T, S> Clone for Intersection<'a, T, S> {
fn clone(&self) -> Intersection<'a, T, S> {
Intersection { iter: self.iter.clone(), ..*self }
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T, S> Iterator for Intersection<'a, T, S>
where T: Eq + Hash, S: HashState
@ -912,6 +921,12 @@ impl<'a, T, S> Iterator for Intersection<'a, T, S>
}
}
impl<'a, T, S> Clone for Difference<'a, T, S> {
fn clone(&self) -> Difference<'a, T, S> {
Difference { iter: self.iter.clone(), ..*self }
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T, S> Iterator for Difference<'a, T, S>
where T: Eq + Hash, S: HashState
@ -935,6 +950,12 @@ impl<'a, T, S> Iterator for Difference<'a, T, S>
}
}
impl<'a, T, S> Clone for SymmetricDifference<'a, T, S> {
fn clone(&self) -> SymmetricDifference<'a, T, S> {
SymmetricDifference { iter: self.iter.clone() }
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T, S> Iterator for SymmetricDifference<'a, T, S>
where T: Eq + Hash, S: HashState
@ -945,6 +966,10 @@ impl<'a, T, S> Iterator for SymmetricDifference<'a, T, S>
fn size_hint(&self) -> (usize, Option<usize>) { self.iter.size_hint() }
}
impl<'a, T, S> Clone for Union<'a, T, S> {
fn clone(&self) -> Union<'a, T, S> { Union { iter: self.iter.clone() } }
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T, S> Iterator for Union<'a, T, S>
where T: Eq + Hash, S: HashState