firespine::node::empty

Struct EmptyEventHandler

pub struct EmptyEventHandler;

Expand description

An event-handler that does precisely nothing.

Trait Implementations§

impl Debug for EmptyEventHandler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl NodeHandler for EmptyEventHandler

fn handle_node_request<'e>( &'e mut self, _name: Arc<str>, _context: &'e mut NodeContext<'_>, ) -> NodeHandlerRequestRes

Called when a new child-node is to be created. Read more

fn handle_event<'e>( &'e mut self, event: &'e mut EventWrapper<'_>, context: &'e mut NodeContext<'_>, ) -> SubEvent

Called when the node receives an Event (wrapped in a EventWrapper). Read more

fn get_comp(&self, _ctype: TypeId) -> Option<&dyn NodeComponent>

Called by NodeContext to fetch a component for a descendant node (or the backbone).

fn get_comp_mut(&self, _ctype: TypeId) -> Option<&RefCell<dyn NodeComponent>>

Called by NodeContext to fetch a mutable component for a descendant node (or the backbone).

fn get_comp_arc(&self, _ctype: TypeId) -> Option<Arc<dyn NodeComponentSync>>

Called by NodeContext to fetch a async component for a descendant node (or the backbone).

Auto Trait Implementations§

impl Freeze for EmptyEventHandler

impl RefUnwindSafe for EmptyEventHandler

impl Send for EmptyEventHandler

impl Sync for EmptyEventHandler

impl Unpin for EmptyEventHandler

impl UnwindSafe for EmptyEventHandler

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Downcast for T
where T: 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.

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.

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.

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.

impl<T> DowncastSync for T
where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<C> NodeComponent for C
where C: 'static,

fn get_component_name(&self) -> &str

Returns a internal name for the component.

fn is_of_type(&self, ctype: TypeId) -> bool

Checks if this component has the given type-id.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<C> NodeComponentSync for C
where C: NodeComponent + Send + Sync,