use std::{collections, hash, ops::DerefMut, sync};
pub trait Clear {
fn clear(&mut self);
}
impl<T> Clear for Option<T> {
fn clear(&mut self) {
let _ = self.take();
}
}
impl<T> Clear for Box<T>
where
T: Clear,
{
#[inline]
fn clear(&mut self) {
self.deref_mut().clear()
}
}
impl<T> Clear for Vec<T> {
#[inline]
fn clear(&mut self) {
Vec::clear(self)
}
}
impl<K, V, S> Clear for collections::HashMap<K, V, S>
where
K: hash::Hash + Eq,
S: hash::BuildHasher,
{
#[inline]
fn clear(&mut self) {
collections::HashMap::clear(self)
}
}
impl<T, S> Clear for collections::HashSet<T, S>
where
T: hash::Hash + Eq,
S: hash::BuildHasher,
{
#[inline]
fn clear(&mut self) {
collections::HashSet::clear(self)
}
}
impl Clear for String {
#[inline]
fn clear(&mut self) {
String::clear(self)
}
}
impl<T: Clear> Clear for sync::Mutex<T> {
#[inline]
fn clear(&mut self) {
self.get_mut().unwrap().clear();
}
}
impl<T: Clear> Clear for sync::RwLock<T> {
#[inline]
fn clear(&mut self) {
self.write().unwrap().clear();
}
}
#[cfg(all(loom, test))]
impl<T: Clear> Clear for crate::sync::alloc::Track<T> {
fn clear(&mut self) {
self.get_mut().clear()
}
}