Struct typed_index_collection::Idx

pub struct Idx<T>(_, _);

Typed index.

Trait Implementations

impl<T> Clone for Idx<T>

pub fn clone(&self) -> Self

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Copy for Idx<T>

impl<T: Debug> Debug for Idx<T>

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

Formats the value using the given formatter.

impl<T> Eq for Idx<T>

impl<T> Hash for Idx<T>

pub fn hash<__HT>(&self, __state: &mut __HT) where
    __HT: Hasher, 

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<T> Index<Idx<T>> for Collection<T>

type Output = T

The returned type after indexing.

pub fn index(&self, index: Idx<T>) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<T> IndexMut<Idx<T>> for Collection<T>

pub fn index_mut(&mut self, idx: Idx<T>) -> &mut T

Access a mutable reference on an entry of the Collection from its Idx.

use typed_index_collection::Collection;

let mut c = Collection::new(vec![-2, -1, 0, 1, 2]);
let negatives_idxs = c
    .iter()
    .filter(|(_, &v)| v < 0)
    .map(|(idx, _)| idx)
    .collect::<Vec<_>>();
for idx in negatives_idxs {
    *c.index_mut(idx) = 0;
}
assert_eq!(vec![0, 0, 0, 1, 2], c.take());

impl<T> Ord for Idx<T>

pub fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<T> PartialEq<Idx<T>> for Idx<T>

pub fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<T> PartialOrd<Idx<T>> for Idx<T>

pub fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.