Trait Filter 

pub trait Filter<Item> {
    // Required method
    fn filter(&mut self, item: &Item) -> bool;
}

Trait for filtering messages.

Required Methods

fn filter(&mut self, item: &Item) -> bool

Filter item.

Return true to keep the item, false to filter it out.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<T, I> Filter<I> for T

where T: FnMut(&I) -> bool,