Struct NestedRefMut

pub struct NestedRefMut<'a, Inner, Outer>
where
    Inner: 'static,
{ /* private fields */ }

A nested std::cell::Ref. Useful for chaining a mutable borrow of a std::cell::RefCell.

Implementations

impl<'a, Inner, Outer> NestedRefMut<'a, Inner, Outer>

where Inner: 'static,

pub fn map( outer: Ref<'a, Outer>, borrow_fn: impl FnOnce(&Outer) -> RefMut<'_, Inner>, ) -> Self

pub fn filter_map( outer: Ref<'a, Outer>, borrow_fn: impl FnOnce(&Outer) -> Option<RefMut<'_, Inner>>, ) -> Option<Self>

Trait Implementations

impl<Inner, Outer> Deref for NestedRefMut<'_, Inner, Outer>

where Inner: 'static,

type Target = Inner

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<Inner, Outer> DerefMut for NestedRefMut<'_, Inner, Outer>

where Inner: 'static,

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.