pub struct Resources<const SEND: bool> { /* private fields */ }
Implementations§
source§impl<const SEND: bool> Resources<SEND>
impl<const SEND: bool> Resources<SEND>
sourcepub fn iter(&self) -> impl Iterator<Item = (ComponentId, &ResourceData<SEND>)>
pub fn iter(&self) -> impl Iterator<Item = (ComponentId, &ResourceData<SEND>)>
Iterate over all resources that have been initialized, i.e. given a ComponentId
sourcepub fn is_empty(&self) -> bool
pub fn is_empty(&self) -> bool
Returns true if there are no resources stored in the World
,
false otherwise.
sourcepub fn get(&self, component_id: ComponentId) -> Option<&ResourceData<SEND>>
pub fn get(&self, component_id: ComponentId) -> Option<&ResourceData<SEND>>
Gets read-only access to a resource, if it exists.
Trait Implementations§
Auto Trait Implementations§
impl<const SEND: bool> Freeze for Resources<SEND>
impl<const SEND: bool> !RefUnwindSafe for Resources<SEND>
impl<const SEND: bool> !Send for Resources<SEND>
impl<const SEND: bool> !Sync for Resources<SEND>
impl<const SEND: bool> Unpin for Resources<SEND>
impl<const SEND: bool> UnwindSafe for Resources<SEND>
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.source§impl<T> FromWorld for Twhere
T: Default,
impl<T> FromWorld for Twhere
T: Default,
source§fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
Creates
Self
using data from the given World
.