Struct corundum::LazyCell

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pub struct LazyCell<T, F = fn() -> T> { /* private fields */ }

Expand description

A memory cell which is initialized on the first access

Implementations

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impl<T, F> LazyCell<T, F>

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pub const fn new(f: F) -> LazyCell<T, F>

Creates a new lazy value with the given initializing function.

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impl<T, F: FnOnce() -> T> LazyCell<T, F>

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pub fn force(this: &LazyCell<T, F>) -> &T

Trait Implementations

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impl<T: Default> Default for LazyCell<T>

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fn default() -> LazyCell<T>

Creates a new lazy value using Default as the initializing function.

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impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F>

type Target = T

The resulting type after dereferencing.

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fn deref(&self) -> &T

Dereferences the value.

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impl<T, F: UnwindSafe> RefUnwindSafe for LazyCell<T, F> where
Cell<T>: RefUnwindSafe,

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impl<T, F: Send> Sync for LazyCell<T, F> where
MaybeUninit<T>: Sync,

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impl<T, F: UnwindSafe> UnwindSafe for LazyCell<T, F> where
Cell<T>: UnwindSafe,

Auto Trait Implementations

impl<T, F> LooseTxInUnsafe for LazyCell<T, F> where
F: LooseTxInUnsafe,
T: LooseTxInUnsafe,

impl<T, F = fn() -> T> !PSafe for LazyCell<T, F>

impl<T, F> PSend for LazyCell<T, F> where
F: PSend,
T: PSend,

impl<T, F> Send for LazyCell<T, F> where
F: Send,
T: Send,

impl<T, F = fn() -> T> !TxInSafe for LazyCell<T, F>

impl<T, F = fn() -> T> !TxOutSafe for LazyCell<T, F>

impl<T, F> Unpin for LazyCell<T, F> where
F: Unpin,
T: Unpin,

impl<T, F> VSafe for LazyCell<T, F> where
F: VSafe,
T: VSafe,

Blanket Implementations

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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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

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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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.

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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.

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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 corundum::LazyCell

Implementations

impl<T, F> LazyCell<T, F>

pub const fn new(f: F) -> LazyCell<T, F>

impl<T, F: FnOnce() -> T> LazyCell<T, F>

pub fn force(this: &LazyCell<T, F>) -> &T

Trait Implementations

impl<T: Default> Default for LazyCell<T>

fn default() -> LazyCell<T>

impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F>

type Target = T

fn deref(&self) -> &T

impl<T, F: UnwindSafe> RefUnwindSafe for LazyCell<T, F> where Cell<T>: RefUnwindSafe,

impl<T, F: Send> Sync for LazyCell<T, F> where MaybeUninit<T>: Sync,

impl<T, F: UnwindSafe> UnwindSafe for LazyCell<T, F> where Cell<T>: UnwindSafe,

Auto Trait Implementations

impl<T, F> LooseTxInUnsafe for LazyCell<T, F> where F: LooseTxInUnsafe, T: LooseTxInUnsafe,

impl<T, F = fn() -> T> !PSafe for LazyCell<T, F>

impl<T, F> PSend for LazyCell<T, F> where F: PSend, T: PSend,

impl<T, F> Send for LazyCell<T, F> where F: Send, T: Send,

impl<T, F = fn() -> T> !TxInSafe for LazyCell<T, F>

impl<T, F = fn() -> T> !TxOutSafe for LazyCell<T, F>

impl<T, F> Unpin for LazyCell<T, F> where F: Unpin, T: Unpin,

impl<T, F> VSafe for LazyCell<T, F> where F: VSafe, T: VSafe,

Blanket Implementations

impl<T, P> Allocatable<T, P> for T where T: Default, P: MemPool,

unsafe fn alloc(usize, &Journal<P>) -> T

unsafe fn alloc_zeroed(usize, &Journal<P>) -> T

fn as_ref(&self) -> &T

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

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>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

impl<T, F: UnwindSafe> RefUnwindSafe for LazyCell<T, F> where
Cell<T>: RefUnwindSafe,

impl<T, F: Send> Sync for LazyCell<T, F> where
MaybeUninit<T>: Sync,

impl<T, F: UnwindSafe> UnwindSafe for LazyCell<T, F> where
Cell<T>: UnwindSafe,

impl<T, F> LooseTxInUnsafe for LazyCell<T, F> where
F: LooseTxInUnsafe,
T: LooseTxInUnsafe,

impl<T, F> PSend for LazyCell<T, F> where
F: PSend,
T: PSend,

impl<T, F> Send for LazyCell<T, F> where
F: Send,
T: Send,

impl<T, F> Unpin for LazyCell<T, F> where
F: Unpin,
T: Unpin,

impl<T, F> VSafe for LazyCell<T, F> where
F: VSafe,
T: VSafe,

impl<T, P> Allocatable<T, P> for T where
T: Default,
P: MemPool,

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>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,