take_mut::scoped

Struct Scope

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pub struct Scope<'s> { /* private fields */ }
Expand description

Represents a scope within which, it is possible to take a T from a &mut T as long as the &mut T outlives the scope.

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impl<'s> Scope<'s>

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pub fn take_or_recover<'c, 'm: 's, T: 'm, F: FnOnce() -> T>( &'c self, mut_ref: &'m mut T, recovery: F, ) -> (T, Hole<'c, 'm, T, F>)

Takes a (T, Hole<'c, 'm, T, F>) from an &'m mut T.

If the Hole is dropped without being filled, either due to panic or forgetting to fill, will run the recovery function to obtain a T to fill itself with.

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pub fn take<'c, 'm: 's, T: 'm>( &'c self, mut_ref: &'m mut T, ) -> (T, Hole<'c, 'm, T, fn() -> T>)

Takes a (T, Hole<'c, 'm, T, F>) from an &'m mut T.

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impl<'s> !Freeze for Scope<'s>

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impl<'s> !RefUnwindSafe for Scope<'s>

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impl<'s> Send for Scope<'s>

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impl<'s> !Sync for Scope<'s>

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impl<'s> Unpin for Scope<'s>

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impl<'s> !UnwindSafe for Scope<'s>

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.