Trait Assign 

pub trait Assign<V = Self>: Container {
    // Required method
    fn assign(&mut self, value: V);
}

Replace self with a new value.

Examples

use maplike::ops::Assign;
use std::collections::HashMap;

// `.assign()` replaces the whole value with a new one.

// Works for scalars.
let mut count = 1;
count.assign(42);
assert_eq!(count, 42);

// Works for tuples.
let mut point = (1, 2);
point.assign((10, 20));
assert_eq!(point, (10, 20));

// Works for `Vec`.
let mut vec = vec![1, 2, 3];
vec.assign(vec![4, 5, 6]);
assert_eq!(vec, [4, 5, 6]);

// Works for `HashMap`.
let mut map = HashMap::from([(1, 2.0)]);
map.assign(HashMap::from([(3, 4.0), (5, 6.0)]));
assert_eq!(map.get(&3), Some(&4.0));
assert_eq!(map.get(&1), None);

Required Methods

fn assign(&mut self, value: V)

Replace self with a new value.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Assign for ()

fn assign(&mut self, value: Self)

impl Assign for bool

fn assign(&mut self, value: Self)

impl Assign for char

fn assign(&mut self, value: Self)

impl Assign for f32

fn assign(&mut self, value: Self)

impl Assign for f64

fn assign(&mut self, value: Self)

impl Assign for i8

fn assign(&mut self, value: Self)

impl Assign for i16

fn assign(&mut self, value: Self)

impl Assign for i32

fn assign(&mut self, value: Self)

impl Assign for i64

fn assign(&mut self, value: Self)

impl Assign for i128

fn assign(&mut self, value: Self)

impl Assign for isize

fn assign(&mut self, value: Self)

impl Assign for u8

fn assign(&mut self, value: Self)

impl Assign for u16

fn assign(&mut self, value: Self)

impl Assign for u32

fn assign(&mut self, value: Self)

impl Assign for u64

fn assign(&mut self, value: Self)

impl Assign for u128

fn assign(&mut self, value: Self)

impl Assign for usize

fn assign(&mut self, value: Self)

impl<A: Array> Assign for ArrayVec<A>

Available on crate feature tinyvec only.

fn assign(&mut self, value: Self)

impl<A: Array> Assign for SmallVec<A>

Available on crate feature smallvec only.

fn assign(&mut self, value: Self)

impl<A: Array> Assign for TinyVec<A>

Available on crate feature tinyvec only.

fn assign(&mut self, value: Self)

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

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<K, V> Assign for HashMap<K, V>

Available on crate feature std only.

fn assign(&mut self, value: Self)

impl<K, V> Assign for IndexMap<K, V>

Available on crate feature indexmap only.

fn assign(&mut self, value: Self)

impl<K: RTreeObject> Assign for RTree<K>

Available on crate feature rstar only.

fn assign(&mut self, value: Self)

impl<K> Assign for BTreeSet<K>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<K> Assign for HashSet<K>

Available on crate feature std only.

fn assign(&mut self, value: Self)

impl<K> Assign for IndexSet<K>

Available on crate feature indexmap only.

fn assign(&mut self, value: Self)

impl<L, R> Assign for BiBTreeMap<L, R>

Available on crate feature bidimap only.

fn assign(&mut self, value: Self)

impl<L, R> Assign for BiHashMap<L, R>

Available on crate features bidimap and std only.

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Assign for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Assign for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> Assign for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> Assign for (T0, T1, T2, T3, T4, T5, T6, T7, T8)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6, T7> Assign for (T0, T1, T2, T3, T4, T5, T6, T7)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5, T6> Assign for (T0, T1, T2, T3, T4, T5, T6)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4, T5> Assign for (T0, T1, T2, T3, T4, T5)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3, T4> Assign for (T0, T1, T2, T3, T4)

fn assign(&mut self, value: Self)

impl<T0, T1, T2, T3> Assign for (T0, T1, T2, T3)

fn assign(&mut self, value: Self)

impl<T0, T1, T2> Assign for (T0, T1, T2)

fn assign(&mut self, value: Self)

impl<T0, T1> Assign for (T0, T1)

fn assign(&mut self, value: Self)

impl<T0> Assign for (T0,)

fn assign(&mut self, value: Self)

impl<T, const CAP: usize> Assign for ArrayVec<T, CAP>

Available on crate feature arrayvec only.

fn assign(&mut self, value: Self)

impl<V, C: Core<V>> Assign for StableVecFacade<V, C>

Available on crate feature stable-vec only.

fn assign(&mut self, value: Self)

impl<V, const N: usize> Assign for [V; N]

fn assign(&mut self, value: Self)

impl<V> Assign for Arc<V>

Available on crate feature std only.

fn assign(&mut self, value: Self)

impl<V> Assign for Arena<V>

Available on crate feature thunderdome only.

fn assign(&mut self, value: Self)

impl<V> Assign for Box<V>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<V> Assign for Option<V>

fn assign(&mut self, value: Self)

impl<V> Assign for Rc<V>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<V> Assign for Vec<V>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<V> Assign for VecDeque<V>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<V> Assign for Weak<V>

Available on crate feature std only.

fn assign(&mut self, value: Self)

impl<V> Assign for Weak<V>

Available on crate feature alloc only.

fn assign(&mut self, value: Self)

impl<const CAP: usize> Assign for ArrayString<CAP>

Available on crate feature arrayvec only.

fn assign(&mut self, value: Self)

Implementors

impl<V> Assign for One<V>