pub struct Handle<L, S> { /* private fields */ }
Expand description
Allows reloading the state of an associated Layer
.
Implementations§
source§impl<L, S> Handle<L, S>
impl<L, S> Handle<L, S>
sourcepub fn reload(&self, new_value: impl Into<L>) -> Result<(), Error>
pub fn reload(&self, new_value: impl Into<L>) -> Result<(), Error>
Replace the current Layer
or Filter
with the provided new_value
.
Handle::reload
cannot be used with the Filtered
layer; use
Handle::modify
instead (see this issue for additional details).
However, if the only the Filter
needs to be modified, use
reload::Layer
to wrap the Filter
directly.
sourcepub fn modify(&self, f: impl FnOnce(&mut L)) -> Result<(), Error>
pub fn modify(&self, f: impl FnOnce(&mut L)) -> Result<(), Error>
Invokes a closure with a mutable reference to the current layer or filter, allowing it to be modified in place.
sourcepub fn clone_current(&self) -> Option<L>where
L: Clone,
pub fn clone_current(&self) -> Option<L>where
L: Clone,
Returns a clone of the layer or filter’s current value if it still exists.
Otherwise, if the subscriber has been dropped, returns None
.
Trait Implementations§
Auto Trait Implementations§
impl<L, S> RefUnwindSafe for Handle<L, S>
impl<L, S> Send for Handle<L, S>
impl<L, S> Sync for Handle<L, S>
impl<L, S> Unpin for Handle<L, S>
impl<L, S> UnwindSafe for Handle<L, S>
Blanket Implementations§
source§impl<T, U> AsBindGroupShaderType<U> for T
impl<T, U> AsBindGroupShaderType<U> for T
source§fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
Return the
T
ShaderType
for self
. When used in AsBindGroup
derives, it is safe to assume that all images in self
exist.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
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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.