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revset: simplify type constraints on combination iterators

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Just a minor cleanup to remove lifetime parameter from the types. I tried to
reimplement them by using itertools, but I couldn't find a simple way to
encode short-circuiting at the end of either left or right iterator.
This commit is contained in:
Yuya Nishihara 2023-12-15 11:52:01 +09:00
parent 6d59156858
commit 4d91e4c196
1 changed files with 15 additions and 21 deletions
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36
lib/src/default_revset_engine.rs
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@ -404,17 +404,15 @@ where
}
}
struct UnionRevsetIterator<
'index,
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
> {
struct UnionRevsetIterator<I1: Iterator, I2: Iterator> {
iter1: Peekable<I1>,
iter2: Peekable<I2>,
}
impl<'index, I1: Iterator<Item = IndexEntry<'index>>, I2: Iterator<Item = IndexEntry<'index>>>
Iterator for UnionRevsetIterator<'index, I1, I2>
impl<'index, I1, I2> Iterator for UnionRevsetIterator<I1, I2>
where
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
{
type Item = IndexEntry<'index>;
@ -478,17 +476,15 @@ where
}
}
struct IntersectionRevsetIterator<
'index,
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
> {
struct IntersectionRevsetIterator<I1: Iterator, I2: Iterator> {
iter1: Peekable<I1>,
iter2: Peekable<I2>,
}
impl<'index, I1: Iterator<Item = IndexEntry<'index>>, I2: Iterator<Item = IndexEntry<'index>>>
Iterator for IntersectionRevsetIterator<'index, I1, I2>
impl<'index, I1, I2> Iterator for IntersectionRevsetIterator<I1, I2>
where
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
{
type Item = IndexEntry<'index>;
@ -564,17 +560,15 @@ where
}
}
struct DifferenceRevsetIterator<
'index,
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
> {
struct DifferenceRevsetIterator<I1: Iterator, I2: Iterator> {
iter1: Peekable<I1>,
iter2: Peekable<I2>,
}
impl<'index, I1: Iterator<Item = IndexEntry<'index>>, I2: Iterator<Item = IndexEntry<'index>>>
Iterator for DifferenceRevsetIterator<'index, I1, I2>
impl<'index, I1, I2> Iterator for DifferenceRevsetIterator<I1, I2>
where
I1: Iterator<Item = IndexEntry<'index>>,
I2: Iterator<Item = IndexEntry<'index>>,
{
type Item = IndexEntry<'index>;