pub struct Extensions(/* private fields */);
Implementations§
Source§impl Extensions
impl Extensions
pub fn new() -> Self
pub fn with_capacity(capacity: usize) -> Self
pub fn insert<T: 'static>(&mut self, val: T) -> Option<T>
pub fn get<T: 'static>(&self) -> Option<&T>
pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T>
pub fn remove<T: 'static>(&mut self) -> Option<T>
pub fn contains<T: 'static>(&self) -> bool
Trait Implementations§
Source§impl Debug for Extensions
impl Debug for Extensions
Source§impl Default for Extensions
impl Default for Extensions
Source§fn default() -> Extensions
fn default() -> Extensions
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for Extensions
impl !RefUnwindSafe for Extensions
impl !Send for Extensions
impl !Sync for Extensions
impl Unpin for Extensions
impl !UnwindSafe for Extensions
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> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§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
.Source§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
.Source§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.Source§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.