Trait vector2math::Pair

pub trait Pair {
    type Item;
    fn first(self) -> Self::Item;
    fn second(self) -> Self::Item;
    fn from_items(a: Self::Item, b: Self::Item) -> Self;
}

Trait for defining a pair of items of the same type.

This trait is meant to generalize having two similar things. It is implemented for (T, T) and [T; 2] with Item = T. However, because a pair does not necessarily have to be an Actual pair It is also implemented for (T, T, T, T) and [T; 4] with Item = (T, T) and Item = [T; 2] respectively.

Associated Types

type Item

The type of the pair's item

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Required methods

fn first(self) -> Self::Item

Get the first thing

fn second(self) -> Self::Item

Get the second thing

fn from_items(a: Self::Item, b: Self::Item) -> Self

Create a pair from two items

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Implementations on Foreign Types

impl<T> Pair for (T, T) where
    T: Clone, 

type Item = T

fn first(self) -> Self::Item

fn second(self) -> Self::Item

fn from_items(a: Self::Item, b: Self::Item) -> Self

impl<T> Pair for [T; 2] where
    T: Clone, 

type Item = T

fn first(self) -> Self::Item

fn second(self) -> Self::Item

fn from_items(a: Self::Item, b: Self::Item) -> Self

impl<T> Pair for (T, T, T, T) where
    T: Clone, 

type Item = (T, T)

fn first(self) -> Self::Item

fn second(self) -> Self::Item

fn from_items(a: Self::Item, b: Self::Item) -> Self

impl<T> Pair for [T; 4] where
    T: Clone, 

type Item = [T; 2]

fn first(self) -> Self::Item

fn second(self) -> Self::Item

fn from_items(a: Self::Item, b: Self::Item) -> Self

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Implementors

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