Struct bevy_ecs::change_detection::MutUntyped
source · pub struct MutUntyped<'a> { /* private fields */ }
Expand description
Unique mutable borrow of resources or an entity’s component.
Similar to Mut
, but not generic over the component type, instead
exposing the raw pointer as a *mut ()
.
Usually you don’t need to use this and can instead use the APIs returning a
Mut
, but in situations where the types are not known at compile time
or are defined outside of rust this can be used.
Implementations§
source§impl<'a> MutUntyped<'a>
impl<'a> MutUntyped<'a>
sourcepub fn into_inner(self) -> PtrMut<'a>
pub fn into_inner(self) -> PtrMut<'a>
Returns the pointer to the value, marking it as changed.
In order to avoid marking the value as changed, you need to call bypass_change_detection
.
sourcepub fn reborrow(&mut self) -> MutUntyped<'_>
pub fn reborrow(&mut self) -> MutUntyped<'_>
Returns a MutUntyped
with a smaller lifetime.
This is useful if you have &mut MutUntyped
, but you need a MutUntyped
.
sourcepub fn as_mut(&mut self) -> PtrMut<'_>
pub fn as_mut(&mut self) -> PtrMut<'_>
Returns a pointer to the value without taking ownership of this smart pointer, marking it as changed.
In order to avoid marking the value as changed, you need to call bypass_change_detection
.
sourcepub fn as_ref(&self) -> Ptr<'_>
pub fn as_ref(&self) -> Ptr<'_>
Returns an immutable pointer to the value without taking ownership.
sourcepub unsafe fn with_type<T>(self) -> Mut<'a, T>
pub unsafe fn with_type<T>(self) -> Mut<'a, T>
Transforms this MutUntyped
into a Mut<T>
with the same lifetime.
Safety
T
must be the erased pointee type for thisMutUntyped
.
Trait Implementations§
source§impl Debug for MutUntyped<'_>
impl Debug for MutUntyped<'_>
source§impl<'a> DetectChanges for MutUntyped<'a>
impl<'a> DetectChanges for MutUntyped<'a>
source§fn is_changed(&self) -> bool
fn is_changed(&self) -> bool
true
if this value was added or mutably dereferenced after the system last ran.source§fn last_changed(&self) -> u32
fn last_changed(&self) -> u32
source§impl<'a> DetectChangesMut for MutUntyped<'a>
impl<'a> DetectChangesMut for MutUntyped<'a>
source§fn set_changed(&mut self)
fn set_changed(&mut self)
source§fn set_last_changed(&mut self, last_changed: u32)
fn set_last_changed(&mut self, last_changed: u32)
source§fn bypass_change_detection(&mut self) -> &mut Self::Inner
fn bypass_change_detection(&mut self) -> &mut Self::Inner
Auto Trait Implementations§
impl<'a> RefUnwindSafe for MutUntyped<'a>
impl<'a> !Send for MutUntyped<'a>
impl<'a> !Sync for MutUntyped<'a>
impl<'a> Unpin for MutUntyped<'a>
impl<'a> !UnwindSafe for MutUntyped<'a>
Blanket Implementations§
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere T: Any,
source§fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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 + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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)
&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)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.