Struct NonEmpty 

pub(crate) struct NonEmpty<T: Container>(T::Element, T);

Small helper to ensure some container type is not empty.

Tuple Fields

0: T::Element

1: T

Implementations

impl<A> NonEmpty<Vec<A>>

pub(crate) fn new<I>(fst: A, rest: I) -> Self

where I: IntoIterator<Item = A>,

pub(crate) fn assert_non_empty_vec<I>(it: I) -> Self

where I: IntoIterator<Item = A>,

pub(crate) fn last(&self) -> &A

pub(crate) fn get(&self, i: usize) -> Option<&A>

pub(crate) fn iter(&self) -> impl Iterator<Item = &A>

impl<K: Ord, V> NonEmpty<BTreeMap<K, V>>

pub(crate) fn assert_non_empty_map<I>(it: I) -> Self

where I: IntoIterator<Item = (K, V)>,

pub(crate) fn first(&self) -> (&K, &V)

pub(crate) fn last(&self) -> (&K, &V)

pub(crate) fn get(&self, k: &K) -> Option<&V>

pub(crate) fn iter(&self) -> impl Iterator<Item = (&K, &V)>

Trait Implementations

impl<T: Debug + Container> Debug for NonEmpty<T>

where T::Element: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.