Trait ObserverSystem 

pub trait ObserverSystem<E: EventPattern, Out = ()>:
    System<In = On<'static, 'static, E>, Out = Out>
    + Send
    + 'static { }

Implemented for Systems that have On as the first argument.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<E: EventPattern, Out, T> ObserverSystem<E, Out> for T

where T: System<In = On<'static, 'static, E>, Out = Out> + Send + 'static,