Struct RwCellGuard 

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

A resource guard that dynamically controls the lifetime of a mutable read-write cell borrow.

Implementations

impl<'a, M: Mutability, T: 'a + ?Sized> RwCellGuard<'a, M, T>

pub unsafe fn detach(self) -> RwCellGuard<'static, M, T>

Removes the lifetime from a guard, allowing it to be freely used in other parts of the program.

Safety

For this function to be sound, the underlying cell must not be moved or destroyed while this guard exists.

impl<'a, T: 'a + ?Sized> RwCellGuard<'a, Const, T>

pub fn map<U, F>(orig: Self, f: F) -> RwCellGuard<'a, Const, U>

where F: FnOnce(&T) -> &U, U: ?Sized,

Creates a reference to a specific portion of a value.

impl<'a, T: 'a + ?Sized> RwCellGuard<'a, Mut, T>

pub fn map<U, F>(orig: Self, f: F) -> RwCellGuard<'a, Mut, U>

where F: FnOnce(&mut T) -> &mut U, U: ?Sized,

Creates a reference to a specific portion of a value.

Trait Implementations

impl<'a, M: Debug + Mutability, T: Debug + 'a + ?Sized> Debug for RwCellGuard<'a, M, T>

where M::Ref<'a, T>: Debug,

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

Formats the value using the given formatter.

impl<'a, M: Mutability, T: 'a + ?Sized> Deref for RwCellGuard<'a, M, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T: 'a + ?Sized> DerefMut for RwCellGuard<'a, Mut, T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a, M: Mutability, T: 'a + ?Sized> Drop for RwCellGuard<'a, M, T>

fn drop(&mut self)

Executes the destructor for this type.