Struct rcref::RcRef

pub struct RcRef<T, U> { /* fields omitted */ }

Something that holds a std::rc::Rc strong reference, but derefs to some component inside of it.

Methods

impl<T, U> RcRef<T, U>

fn new<F>(rc: Rc<T>, f: F) -> RcRef<T, U> where
    F: FnOnce(&T) -> &U, 

Create a RcRef for a component in a given Rc.

fn new_opt<F>(rc: Rc<T>, f: F) -> Option<RcRef<T, U>> where
    F: FnOnce(&T) -> Option<&U>, 

Create a RcRef for and a component that may or may not be in a given Rc.

Trait Implementations

impl<T, U> Deref for RcRef<T, U>

type Target = U

The resulting type after dereferencing

fn deref(&self) -> &U

The method called to dereference a value