Struct TakeCell

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pub struct TakeCell<T>(/* private fields */);
Expand description

Convenient wrapper around Mutex<Option<T>>.

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impl<T> TakeCell<T>

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pub const fn new(init: Option<T>) -> Self

Creates a new mutex-protected option.

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pub fn take(&self) -> T

Takes the content of the option.

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Panics if the mutex is locked or the option is empty.

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pub fn get(&self) -> Option<T>

Takes the (possibly empty) content of the option.

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Panics if the mutex is locked.

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pub fn replace(&self, value: T) -> Option<T>

Replaces the content of the option.

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Panics if the mutex is locked.

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pub fn put(&self, value: T)

Sets the content of the option.

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Panics if the mutex is locked or the option is not empty.

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pub fn with<R>(&self, f: impl FnOnce(&mut T) -> R) -> R

Executes a closure on the content of the option.

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Panics if the mutex is locked or the option is empty.

Auto Trait Implementations§

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impl<T> !Freeze for TakeCell<T>

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impl<T> !RefUnwindSafe for TakeCell<T>

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

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impl<T> Sync for TakeCell<T>
where T: Send,

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

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

Blanket Implementations§

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

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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,

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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,

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.