[−][src]Struct cell::RefValMut
A type containing a value that contains a borrowed mutable reference
to a value from a RefCell<T>
.
See the module-level documentation for more.
Methods
impl<'b, T> RefValMut<'b, T>
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pub fn map<U: Sized, F>(orig: RefValMut<'b, T>, f: F) -> RefValMut<'b, U> where
F: FnOnce(T) -> U,
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F: FnOnce(T) -> U,
Make a new RefValMut
from the another RefValMut
.
The RefCell
is already mutably borrowed, so this operation
cannot fail.
Trait Implementations
impl<T: Sized + Debug, '_> Debug for RefValMut<'_, T>
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impl<T: Display, '_> Display for RefValMut<'_, T>
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impl<T, '_> Deref for RefValMut<'_, T>
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impl<T, '_> DerefMut for RefValMut<'_, T>
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Auto Trait Implementations
Blanket Implementations
impl<T> From<T> for T
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,