Struct zng::var::WeakArcVar
source · pub struct WeakArcVar<T>(/* private fields */)
where
T: VarValue;Expand description
Weak reference to a ArcVar<T>.
Implementations§
source§impl<T> WeakArcVar<T>where
T: VarValue,
impl<T> WeakArcVar<T>where
T: VarValue,
sourcepub fn new() -> WeakArcVar<T>
pub fn new() -> WeakArcVar<T>
New reference to nothing.
Trait Implementations§
source§impl<T> AnyWeakVar for WeakArcVar<T>where
T: VarValue,
impl<T> AnyWeakVar for WeakArcVar<T>where
T: VarValue,
source§fn clone_any(&self) -> Box<dyn AnyWeakVar>
fn clone_any(&self) -> Box<dyn AnyWeakVar>
Clone the weak reference.
source§fn strong_count(&self) -> usize
fn strong_count(&self) -> usize
Gets the number of strong references to the variable. Read more
source§fn weak_count(&self) -> usize
fn weak_count(&self) -> usize
Gets the number of weak references to the variable. Read more
source§impl<T> Clone for WeakArcVar<T>
impl<T> Clone for WeakArcVar<T>
source§fn clone(&self) -> WeakArcVar<T>
fn clone(&self) -> WeakArcVar<T>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moresource§impl<T> Default for WeakArcVar<T>where
T: VarValue,
impl<T> Default for WeakArcVar<T>where
T: VarValue,
source§fn default() -> WeakArcVar<T>
fn default() -> WeakArcVar<T>
Returns the “default value” for a type. Read more
source§impl<T> WeakVar<T> for WeakArcVar<T>where
T: VarValue,
impl<T> WeakVar<T> for WeakArcVar<T>where
T: VarValue,
Auto Trait Implementations§
impl<T> Freeze for WeakArcVar<T>
impl<T> !RefUnwindSafe for WeakArcVar<T>
impl<T> Send for WeakArcVar<T>
impl<T> Sync for WeakArcVar<T>
impl<T> Unpin for WeakArcVar<T>
impl<T> !UnwindSafe for WeakArcVar<T>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit)§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can
then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be
further downcast into Rc<ConcreteType> where ConcreteType implements Trait.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &Any’s vtable from &Trait’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &mut Any’s vtable from &mut Trait’s.§impl<T> DowncastSync for T
impl<T> DowncastSync for T
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more§impl<T> NoneValue for Twhere
T: Default,
impl<T> NoneValue for Twhere
T: Default,
type NoneType = T
§fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
§impl<T> NoneValue for Twhere
T: Default,
impl<T> NoneValue for Twhere
T: Default,
type NoneType = T
§fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<R, P> ReadPrimitive<R> for P
impl<R, P> ReadPrimitive<R> for P
source§fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_little_endian().