[−][src]Trait vector2math::Pair

pub trait Pair: Sized {
    type Item;
    fn to_pair(self) -> (Self::Item, Self::Item);

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

    fn pairwise<O, P, F, R>(self, other: O, f: F) -> P
    where
        O: Pair,
        P: Pair<Item = R>,
        F: Fn(Self::Item, O::Item) -> R,
    { ... }

    fn iter(self) -> Chain2<Self::Item> { ... }
}

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 to_pair(self) -> (Self::Item, Self::Item)

Get the pair

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

Create a pair from two items

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Provided methods

fn pairwise<O, P, F, R>(self, other: O, f: F) -> P where
    O: Pair,
    P: Pair<Item = R>,
    F: Fn(Self::Item, O::Item) -> R, 

Apply a function pairwise to the items of two pairs

fn iter(self) -> Chain2<Self::Item>

Get an iterator over the pair's items

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Implementations on Foreign Types

impl<T> Pair for (T, T)[src]

type Item = T

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

type Item = T

impl<T> Pair for (T, T, T, T)[src]

type Item = (T, T)

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

type Item = [T; 2]

impl<T> Pair for (T, T, T, T, T, T)[src]

type Item = (T, T, T)

impl<T> Pair for [T; 6] where
    T: Copy, [src]

type Item = [T; 3]

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Implementors

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