rquickjs_core/
safe_ref.rs

1#[cfg(not(feature = "parallel"))]
2use std::cell::RefCell as Cell;
3
4#[cfg(feature = "parallel")]
5use std::sync::Mutex as Cell;
6
7#[cfg(not(feature = "parallel"))]
8pub use std::{
9    cell::RefMut as Lock,
10    rc::{Rc as Ref, Weak},
11};
12
13#[cfg(feature = "parallel")]
14pub use std::sync::{Arc as Ref, MutexGuard as Lock, Weak};
15
16#[repr(transparent)]
17pub struct Mut<T: ?Sized>(Cell<T>);
18
19impl<T> Mut<T> {
20    pub fn new(inner: T) -> Self {
21        Self(Cell::new(inner))
22    }
23}
24
25impl<T: Default> Default for Mut<T> {
26    fn default() -> Self {
27        Mut::new(T::default())
28    }
29}
30
31impl<T: ?Sized> Mut<T> {
32    pub fn lock(&self) -> Lock<T> {
33        #[cfg(not(feature = "parallel"))]
34        {
35            self.0.borrow_mut()
36        }
37
38        #[cfg(feature = "parallel")]
39        {
40            self.0.lock().unwrap()
41        }
42    }
43
44    pub fn try_lock(&self) -> Option<Lock<T>> {
45        #[cfg(not(feature = "parallel"))]
46        {
47            self.0.try_borrow_mut().ok()
48        }
49
50        #[cfg(feature = "parallel")]
51        {
52            self.0.lock().ok()
53        }
54    }
55}
rquickjs_core/safe_ref.rs

rquickjs_core/
safe_ref.rs
