Trait Extend 

pub trait Extend<IN> {
    type Error;

    // Required method
    fn extend(
        &mut self,
        into_iter: impl IntoIterator<Item = IN>,
    ) -> Result<(), Self::Error>;
}

See Extend::extend for more information.

Required Associated Types

type Error

Error

Required Methods

fn extend( &mut self, into_iter: impl IntoIterator<Item = IN>, ) -> Result<(), Self::Error>

Returns an mutable inner reference of a derived element.

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<IN, T> Extend<IN> for &mut T

where T: Extend<IN>,

type Error = <T as Extend<IN>>::Error

fn extend( &mut self, into_iter: impl IntoIterator<Item = IN>, ) -> Result<(), Self::Error>

impl<T> Extend<T> for Option<T>

let mut opt = None;
cl_aux::Extend::extend(&mut opt, [3]).unwrap();
assert_eq!(opt, Some(3));

type Error = Error

fn extend( &mut self, into_iter: impl IntoIterator<Item = T>, ) -> Result<(), Self::Error>

impl<T> Extend<T> for ()

type Error = Error

fn extend(&mut self, _: impl IntoIterator<Item = T>) -> Result<(), Self::Error>

Implementors