Struct IndexMap

pub struct IndexMap { /* private fields */ }

Constructs a map between two sets of numbers A -> B.

Implementations

impl IndexMap

pub fn new() -> Self

Create a new, identity map.

pub fn get(&self, a: usize) -> usize

Get the value a maps to.

pub fn map(&mut self, a: usize, b: usize)

Creates a mapping from a to b (works like function composition).

pub fn compose(lhs: Self, rhs: &mut Self)

Composes two index maps: any get call will be functionally equivalent to self.get(other.get(i)).

Trait Implementations

impl Clone for IndexMap

fn clone(&self) -> IndexMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexMap

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

Formats the value using the given formatter.

impl Default for IndexMap

fn default() -> IndexMap

Returns the “default value” for a type.