Trait OptionalIndexMut

pub trait OptionalIndexMut<I>: OptionalIndex<I>
where
    I: ?Sized,
{
    // Required method
    fn optional_index_mut(&mut self, index: I) -> Option<&mut Self::Output>;
}

Optional mutable index.

Required Methods

fn optional_index_mut(&mut self, index: I) -> Option<&mut Self::Output>

Implementations on Foreign Types

impl<T, I> OptionalIndexMut<I> for Option<T>

where T: OptionalIndexMut<I>,

fn optional_index_mut(&mut self, index: I) -> Option<&mut Self::Output>

impl<T, I> OptionalIndexMut<I> for &mut T

where T: OptionalIndexMut<I>,

fn optional_index_mut(&mut self, index: I) -> Option<&mut Self::Output>

Implementors