Struct Morphism 

pub struct Morphism<T> {
    pub source: T,
    pub target: T,
    pub mapping: HashMap<usize, usize>,
}

A morphism between objects in a category.

In our setting, morphisms are structure-preserving maps between mathematical objects (graphs, groups, etc.).

Fields

source: T

Source object

target: T

Target object

mapping: HashMap<usize, usize>

The underlying map (represented as vertex mapping)

Implementations

impl<T> Morphism<T>

pub const fn new(source: T, target: T, mapping: HashMap<usize, usize>) -> Self

Create a new morphism.

Arguments

• source - The source object
• target - The target object
• mapping - The underlying map

pub fn apply(&self, vertex: usize) -> Option<usize>

Get the image of a vertex under this morphism.

Trait Implementations

impl<T: Clone> Clone for Morphism<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Morphism<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for Morphism<T>

fn eq(&self, other: &Morphism<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: Eq> Eq for Morphism<T>

impl<T> StructuralPartialEq for Morphism<T>