Struct cryo::Cryo

pub struct Cryo<'a, T: ?Sized + 'a> { /* private fields */ }

A cell-like type that enforces the lifetime restriction of its borrowed value at runtime.

Cryo is a variation of CryoMut that only can be immutably borrowed.

When a Cryo is dropped, the current thread will be blocked until all references to the contained value are dropped. This ensures that none of the references can outlive the referent.

See the module-level documentation for more details.

Implementations

impl<'a, T: ?Sized + 'a> Cryo<'a, T>

pub unsafe fn new(x: &'a T) -> Self

Construct a new Cryo.

Safety

• The constructed Cryo must not be moved around. This might result in a dangling pointer in CryoRef.

• The constructed Cryo must not be disposed without dropping (e.g., passed to std::mem::forget). This might result in a dangling pointer in CryoRef.

pub fn borrow(&self) -> CryoRef<T>

Borrow a cell using runtime lifetime rules.

pub fn get(&self) -> &'a T

Borrow a cell using compile-time lifetime rules.

This operation is no-op since Cryo only can be immutably borrowed.

Trait Implementations

impl<'a, T: ?Sized + Debug> Debug for Cryo<'a, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, T: ?Sized + 'a> Drop for Cryo<'a, T>

fn drop(&mut self)

Executes the destructor for this type.

impl<'a, T: ?Sized + Send> Send for Cryo<'a, T>

impl<'a, T: ?Sized + Send + Sync> Sync for Cryo<'a, T>