Revert "feat: Introduce multiple Iterator impl for Matches"

This reverts commit c594597a01422087a66e78bdfddd32d5abc99ad2.
This commit is contained in:
Clément Renault 2019-01-06 21:26:27 +01:00
parent 34d2850d28
commit 2cc5fbde1a
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@ -2,7 +2,6 @@ pub mod criterion;
mod query_builder;
mod distinct_map;
use std::iter::FusedIterator;
use std::slice::Windows;
use sdset::SetBuf;
@ -83,10 +82,9 @@ pub struct QueryIndexGroups<'a, 'b> {
windows: Windows<'b, usize>,
}
impl<'a> Iterator for QueryIndexGroups<'a, '_> {
impl<'a, 'b> Iterator for QueryIndexGroups<'a, 'b> {
type Item = &'a [Match];
#[inline]
fn next(&mut self) -> Option<Self::Item> {
self.windows.next().map(|range| {
match *range {
@ -95,56 +93,10 @@ impl<'a> Iterator for QueryIndexGroups<'a, '_> {
}
})
}
#[inline]
fn size_hint(&self) -> (usize, Option<usize>) {
self.windows.size_hint()
}
#[inline]
fn count(self) -> usize {
self.len()
}
#[inline]
fn nth(&mut self, n: usize) -> Option<Self::Item> {
self.windows.nth(n).map(|range| {
match *range {
[left, right] => &self.matches[left..right],
_ => unreachable!(),
}
})
}
#[inline]
fn last(self) -> Option<Self::Item> {
let (matches, windows) = (self.matches, self.windows);
windows.last().map(|range| {
match *range {
[left, right] => &matches[left..right],
_ => unreachable!(),
}
})
}
}
impl ExactSizeIterator for QueryIndexGroups<'_, '_> {
#[inline]
fn len(&self) -> usize {
self.windows.len()
}
}
impl FusedIterator for QueryIndexGroups<'_, '_> { }
impl DoubleEndedIterator for QueryIndexGroups<'_, '_> {
#[inline]
fn next_back(&mut self) -> Option<Self::Item> {
self.windows.next_back().map(|range| {
match *range {
[left, right] => &self.matches[left..right],
_ => unreachable!(),
}
})
}
}
// impl ExactSizeIterator for QueryIndexGroups<'_, '_> {
// fn len(&self) -> usize {
// self.windows.len() // FIXME (+1) ?
// }
// }