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HandlerObserver

cognis_core::callbacks

Struct HandlerObserver 

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pub struct HandlerObserver<H: CallbackHandler>(pub H);
Expand description

Wraps a CallbackHandler as an Observer so existing event plumbing routes through the typed handler.

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§0: H

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impl<H: CallbackHandler> Observer for HandlerObserver<H>

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fn on_event(&self, event: &Event)

Called for every event emitted during execution. Implementations should be cheap and non-blocking — a slow observer slows execution.

Auto Trait Implementations§

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impl<H> Freeze for HandlerObserver<H>
where H: Freeze,

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impl<H> RefUnwindSafe for HandlerObserver<H>
where H: RefUnwindSafe,

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impl<H> Send for HandlerObserver<H>

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impl<H> Sync for HandlerObserver<H>

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impl<H> Unpin for HandlerObserver<H>
where H: Unpin,

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impl<H> UnsafeUnpin for HandlerObserver<H>
where H: UnsafeUnpin,

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impl<H> UnwindSafe for HandlerObserver<H>
where H: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more