pub trait ACMapRetain<S, V, H, W>{
// Required method
fn retain<F>(&mut self, f: F)
where F: FnMut(&W, &V) -> bool;
}Expand description
Drop entries that don’t satisfy a predicate — used by truncation strategies.
Required Methods§
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".