Trait RetainTake 

pub trait RetainTake<T> {
    // Required method
    fn retain_take<F>(&mut self, predicate: F) -> Vec<T>
       where F: FnMut(&T) -> bool;
}

Available on crate feature alloc only.

The retain+take operation is exactly what it sounds like. Retain only those elements that match the predicate, but return whole owned copies of the items. For efficiency’s sake, some implementations may iterate backwards through the container.

Required Methods

fn retain_take<F>(&mut self, predicate: F) -> Vec<T>

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

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> RetainTake<T> for VecDeque<T>

fn retain_take<F>(&mut self, predicate: F) -> Vec<T>

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

impl<T> RetainTake<T> for Vec<T>

fn retain_take<F>(&mut self, predicate: F) -> Vec<T>

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

Implementors