Struct rapier2d::data::Coarena [−][src]
pub struct Coarena<T> { /* fields omitted */ }
Expand description
A container for data associated to item existing into another Arena.
Implementations
Gets a specific element from the coarena without specifying its generation number.
It is strongly encouraged to use Coarena::get
instead of this method because this method
can suffer from the ABA problem.
Deletes an element for the coarena and returns its value.
We can’t really remove an element from the coarena. So instead of actually removing
it, this method will reset the value to the given removed_value
.
Gets a specific element from the coarena, if it exists.
Gets a mutable reference to a specific element from the coarena, if it exists.
Inserts an element into this coarena.
Ensure that the given element exists in thihs coarena, and return its mutable reference.
Trait Implementations
Auto Trait Implementations
impl<T> RefUnwindSafe for Coarena<T> where
T: RefUnwindSafe,
impl<T> UnwindSafe for Coarena<T> where
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
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
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
type Output = T
type Output = T
Should always be Self
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
Checks if self
is actually part of its subset T
(and can be converted to it).
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
The inclusion map: converts self
to the equivalent element of its superset.