Trait UnsafeCellExt

pub trait UnsafeCellExt<T> {
    // Required methods
    unsafe fn as_mut(&self) -> &mut T;
    fn replace(&self, _: T) -> T;
}

Required Methods

unsafe fn as_mut(&self) -> &mut T

fn replace(&self, _: T) -> T

Implementations on Foreign Types

impl<T> UnsafeCellExt<T> for UnsafeCell<T>

unsafe fn as_mut(&self) -> &mut T

Returns a mutable reference to the underlying data contained within an unsafe cell. This function is marked as unsafe because it directly casts the internal pointer to a mutable reference, thereby bypassing Rust’s normal borrowing rules.

fn replace(&self, v: T) -> T

Replaces the value contained within an internal cell with a new value while returning the previous content.

This function consumes a new value to update the internal state and returns the original value that was stored, effectively performing an atomic swap operation in the cell’s memory.

Implementors