--- a/rust/hedgewars-server/src/server/indexslab.rs Tue May 28 17:49:04 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,71 +0,0 @@
-use std::{
- iter,
- mem::replace,
- ops::{Index, IndexMut},
-};
-
-pub struct IndexSlab<T> {
- data: Vec<Option<T>>,
-}
-
-impl<T> IndexSlab<T> {
- pub fn new() -> Self {
- Self { data: Vec::new() }
- }
-
- pub fn with_capacity(capacity: usize) -> Self {
- Self {
- data: Vec::with_capacity(capacity),
- }
- }
-
- pub fn insert(&mut self, index: usize, value: T) {
- if index >= self.data.len() {
- self.data.reserve(index - self.data.len() + 1);
- self.data.extend((self.data.len()..index).map(|_| None));
- self.data.push(Some(value))
- } else {
- self.data[index] = Some(value);
- }
- }
-
- pub fn contains(&self, index: usize) -> bool {
- self.data.get(index).and_then(|x| x.as_ref()).is_some()
- }
-
- pub fn remove(&mut self, index: usize) -> Option<T> {
- if let Some(x) = self.data.get_mut(index) {
- replace(x, None)
- } else {
- None
- }
- }
-
- pub fn iter(&self) -> impl Iterator<Item = (usize, &T)> {
- self.data
- .iter()
- .enumerate()
- .filter_map(|(index, opt)| opt.as_ref().and_then(|x| Some((index, x))))
- }
-
- pub fn iter_mut(&mut self) -> impl Iterator<Item = (usize, &mut T)> {
- self.data
- .iter_mut()
- .enumerate()
- .filter_map(|(index, opt)| opt.as_mut().and_then(|x| Some((index, x))))
- }
-}
-
-impl<T> Index<usize> for IndexSlab<T> {
- type Output = T;
-
- fn index(&self, index: usize) -> &Self::Output {
- self.data[index].as_ref().unwrap()
- }
-}
-
-impl<T> IndexMut<usize> for IndexSlab<T> {
- fn index_mut(&mut self, index: usize) -> &mut Self::Output {
- self.data[index].as_mut().unwrap()
- }
-}