Trait Selector 

pub trait Selector<'w> {
    type Iter: Iterator;
    type Component: Component;

    // Required method
    fn borrow(container: &'w Container) -> Self::Iter;

    // Provided method
    fn matches(container: &'w Container) -> bool { ... }
}

Trait defenition of Selector to control mutability of borrows

Required Associated Types

type Iter: Iterator

type Component: Component

Required Methods

fn borrow(container: &'w Container) -> Self::Iter

Provided Methods

fn matches(container: &'w Container) -> 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<'w, C> Selector<'w> for &C

where C: Component,

type Iter = Iter<'w, C>

type Component = C

fn borrow(container: &'w Container) -> Self::Iter

impl<'w, C> Selector<'w> for &mut C

where C: Component,

type Iter = IterMut<'w, C>

type Component = C

fn borrow(container: &'w Container) -> Self::Iter

Implementors