Struct pure_cell::PureCell

source · [−]

pub struct PureCell<T> { /* private fields */ }

Expand description

A cell type that provides interior mutability via “pure” functions.

Implementations

source

impl<T> PureCell<T>

source

pub const fn new(value: T) -> Self

Creates a new PureCell containing the given value.

source

pub fn get(&mut self) -> &mut T

Returns a mutable reference to the underlying data.

source

pub unsafe fn with<R, F>(&self, f: F) -> R where
F: FnOnce(&mut ManuallyDrop<T>) -> R,

Update cell.

Safety

Sound to use so long as you follow these rules in the closure:

Must not yield to other code (usually async)
Must not recursively call Self::with()

Trait Implementations

source

impl<T: Debug> Debug for PureCell<T>

source

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

Formats the value using the given formatter. Read more

source

impl<T> Drop for PureCell<T>

source

fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations

impl<T> !RefUnwindSafe for PureCell<T>

impl<T> Send for PureCell<T> where
T: Send,

impl<T> !Sync for PureCell<T>

impl<T> Unpin for PureCell<T> where
T: Unpin,

impl<T> UnwindSafe for PureCell<T> where
T: UnwindSafe,

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct pure_cell::PureCell

Implementations

impl<T> PureCell<T>

pub const fn new(value: T) -> Self

pub fn get(&mut self) -> &mut T

pub unsafe fn with<R, F>(&self, f: F) -> R where
F: FnOnce(&mut ManuallyDrop<T>) -> R,

Safety

Trait Implementations

impl<T: Debug> Debug for PureCell<T>

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

impl<T> Drop for PureCell<T>

fn drop(&mut self)

Auto Trait Implementations

impl<T> !RefUnwindSafe for PureCell<T>

impl<T> Send for PureCell<T> where
T: Send,

impl<T> !Sync for PureCell<T>

impl<T> Unpin for PureCell<T> where
T: Unpin,

impl<T> UnwindSafe for PureCell<T> where
T: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct pure_cell::PureCell

Implementations

impl<T> PureCell<T>

pub const fn new(value: T) -> Self

pub fn get(&mut self) -> &mut T

pub unsafe fn with<R, F>(&self, f: F) -> R where F: FnOnce(&mut ManuallyDrop<T>) -> R,

Safety

Trait Implementations

impl<T: Debug> Debug for PureCell<T>

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

impl<T> Drop for PureCell<T>

fn drop(&mut self)

Auto Trait Implementations

impl<T> !RefUnwindSafe for PureCell<T>

impl<T> Send for PureCell<T> where T: Send,

impl<T> !Sync for PureCell<T>

impl<T> Unpin for PureCell<T> where T: Unpin,

impl<T> UnwindSafe for PureCell<T> where T: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub unsafe fn with<R, F>(&self, f: F) -> R where
F: FnOnce(&mut ManuallyDrop<T>) -> R,

impl<T> Send for PureCell<T> where
T: Send,

impl<T> Unpin for PureCell<T> where
T: Unpin,

impl<T> UnwindSafe for PureCell<T> where
T: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,