Trait ore::collections::CollectionExt

pub trait CollectionExt<T>: Sized where
    T: IntoIterator, {
    fn into_first(self) -> T::Item;
    fn into_last(self) -> T::Item;
    fn expect_element<Err: Display>(self, msg: Err) -> T::Item;

    fn into_element(self) -> T::Item { ... }
}

Extension methods for collections.

Required methods

fn into_first(self) -> T::Item

Consumes the collection and returns its first element.

This method panics if the collection does not have at least one element.

fn into_last(self) -> T::Item

Consumes the collection and returns its last element.

This method panics if the collection does not have at least one element.

fn expect_element<Err: Display>(self, msg: Err) -> T::Item

Consumes the collection and returns its only element.

This method panics with the given error message if the collection does not have exactly one element.

Provided methods

fn into_element(self) -> T::Item

Consumes the collection and returns its only element.

This method panics if the collection does not have exactly one element.

Implementors

impl<T> CollectionExt<T> for T where
    T: IntoIterator,