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clippy improvements to iterators

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llogiq
2015-09-03 12:35:34 +02:00
parent 1661947014
commit b6a3978886
1 changed files with 6 additions and 6 deletions
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src/libcore/iter.rs
+6 -6
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@@ -1513,7 +1513,7 @@ impl<A, B> Iterator for Chain<A, B> where
fn next(&mut self) -> Option<A::Item> {
match self.state {
ChainState::Both => match self.a.next() {
elt @ Some(..) => return elt,
elt @ Some(..) => elt,
None => {
self.state = ChainState::Back;
self.b.next()
@@ -1590,7 +1590,7 @@ impl<A, B> DoubleEndedIterator for Chain<A, B> where
fn next_back(&mut self) -> Option<A::Item> {
match self.state {
ChainState::Both => match self.b.next_back() {
elt @ Some(..) => return elt,
elt @ Some(..) => elt,
None => {
self.state = ChainState::Front;
self.a.next_back()
@@ -1683,7 +1683,7 @@ impl<B, I: Iterator, F> Iterator for Map<I, F> where F: FnMut(I::Item) -> B {
#[inline]
fn next(&mut self) -> Option<B> {
self.iter.next().map(|a| (self.f)(a))
self.iter.next().map(self.f)
}
#[inline]
@@ -1698,7 +1698,7 @@ impl<B, I: DoubleEndedIterator, F> DoubleEndedIterator for Map<I, F> where
{
#[inline]
fn next_back(&mut self) -> Option<B> {
self.iter.next_back().map(|a| (self.f)(a))
self.iter.next_back().map(self.f)
}
}
@@ -2210,7 +2210,7 @@ fn next(&mut self) -> Option<U::Item> {
return Some(x)
}
}
match self.iter.next().map(|x| (self.f)(x)) {
match self.iter.next().map(self.f) {
None => return self.backiter.as_mut().and_then(|it| it.next()),
next => self.frontiter = next.map(IntoIterator::into_iter),
}
@@ -2243,7 +2243,7 @@ fn next_back(&mut self) -> Option<U::Item> {
return Some(y)
}
}
match self.iter.next_back().map(|x| (self.f)(x)) {
match self.iter.next_back().map(self.f) {
None => return self.frontiter.as_mut().and_then(|it| it.next_back()),
next => self.backiter = next.map(IntoIterator::into_iter),
}