Struct Position 

pub struct Position<T> {
    pub index: usize,
    pub value: T,
}

Position.

This data type attaches an index to a value, indicating its position within a sorted stream. It is primarily used in the context of Stream::sort, which keeps an internal store of items and updates their positions as the items entering the stream change.

Note that ordering of positions is determined by their index, and in case a tie-breaker is necessary, by the value itself.

Fields

index: usize

Index in sort order.

value: T

Associated value.

Implementations

impl<T> Position<T>

pub fn new(index: usize, value: T) -> Self

Creates a position.

Examples

use zrx_stream::value::Position;

// Create position
let position = Position::new(0, "a");

pub fn into_parts(self) -> (usize, T)

Returns the index and associated value, consuming the position.

Examples

use zrx_stream::value::Position;

// Create position
let position = Position::new(0, "a");
assert_eq!(
    position.into_parts(),
    (0, "a"),
);

pub fn into_value(self) -> T

Returns the associated value, consuming the position.

use zrx_stream::value::Position;

// Create position
let position = Position::new(0, "a");
assert_eq!(position.into_value(), "a");

Trait Implementations

impl<T: Clone> Clone for Position<T>

fn clone(&self) -> Position<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Position<T>

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

Formats the value using the given formatter.

impl<T: Ord> Ord for Position<T>

fn cmp(&self, other: &Position<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq for Position<T>

fn eq(&self, other: &Position<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd> PartialOrd for Position<T>

fn partial_cmp(&self, other: &Position<T>) -> Option<Ordering>

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

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl<T: Eq> Eq for Position<T>

impl<T> StructuralPartialEq for Position<T>

impl<T> Value for Position<T>

where T: Value,