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use std::{fmt, ops::Deref, sync::Arc};
use derive_more::From;
use parking_lot::Mutex;
use serde::{
de::{self, Deserializer},
ser::Serializer,
Deserialize, Serialize,
};
#[derive(Clone, Copy, PartialEq, Eq, Default, From)]
pub struct Local<T>(T);
impl<T> Local<T> {
#[inline]
pub fn into_inner(self) -> T {
self.0
}
}
impl<T> Deref for Local<T> {
type Target = T;
#[inline]
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<T> fmt::Debug for Local<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "<local>")
}
}
impl<T> Serialize for Local<T> {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str("<local>")
}
}
impl<'de, T> Deserialize<'de> for Local<T> {
fn deserialize<D>(_deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
Err(de::Error::custom("Local<T> cannot be deserialized"))
}
}
pub struct MoveOwnership<T>(Arc<Mutex<Option<T>>>);
impl<T> MoveOwnership<T> {
pub fn take(&self) -> Option<T> {
self.0.lock().take()
}
}
impl<T> From<T> for MoveOwnership<T> {
fn from(value: T) -> Self {
Self(Arc::new(Mutex::new(Some(value))))
}
}
impl<T> Clone for MoveOwnership<T> {
fn clone(&self) -> MoveOwnership<T> {
Self(self.0.clone())
}
}
impl<T> fmt::Debug for MoveOwnership<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "<local>")
}
}
impl<T> Serialize for MoveOwnership<T> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str("<local>")
}
}
impl<'de, T> Deserialize<'de> for MoveOwnership<T> {
fn deserialize<D>(_deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
Err(de::Error::custom("MoveOwnership<T> cannot be deserialized"))
}
}