Trait LengthProperty 

pub trait LengthProperty {
    // Required method
    fn length_property(&self) -> usize;
}

The length property of a collection-like type.

Collection-like types are, for example, Vec, slice, array, HashSet, HashMap and strings.

This property is used by the implementation of the AssertHasLength assertion.

Required Methods

fn length_property(&self) -> usize

Returns the length of a collection-like value.

Implementations on Foreign Types

impl LengthProperty for &str

fn length_property(&self) -> usize

impl LengthProperty for &CStr

fn length_property(&self) -> usize

impl LengthProperty for &OsStr

Available on crate feature std only.

fn length_property(&self) -> usize

impl LengthProperty for CString

fn length_property(&self) -> usize

impl LengthProperty for String

fn length_property(&self) -> usize

impl LengthProperty for OsString

Available on crate feature std only.

fn length_property(&self) -> usize

impl<K, V> LengthProperty for BTreeMap<K, V>

fn length_property(&self) -> usize

impl<K, V, S> LengthProperty for HashMap<K, V, S>

Available on crate feature std only.

fn length_property(&self) -> usize

impl<K, V, S> LengthProperty for HashMap<K, V, S>

fn length_property(&self) -> usize

impl<T> LengthProperty for &[T]

fn length_property(&self) -> usize

impl<T> LengthProperty for &T

where T: LengthProperty + ?Sized,

fn length_property(&self) -> usize

impl<T> LengthProperty for &mut T

where T: LengthProperty + ?Sized,

fn length_property(&self) -> usize

impl<T> LengthProperty for BinaryHeap<T>

fn length_property(&self) -> usize

impl<T> LengthProperty for BTreeSet<T>

fn length_property(&self) -> usize

impl<T> LengthProperty for LinkedList<T>

fn length_property(&self) -> usize

impl<T> LengthProperty for VecDeque<T>

fn length_property(&self) -> usize

impl<T> LengthProperty for Vec<T>

fn length_property(&self) -> usize

impl<T, S> LengthProperty for HashSet<T, S>

Available on crate feature std only.

fn length_property(&self) -> usize

impl<T, S> LengthProperty for HashSet<T, S>

fn length_property(&self) -> usize

impl<T, const N: usize> LengthProperty for [T; N]

fn length_property(&self) -> usize

Implementors