Enum Relation 

pub enum Relation {
    Before,
    After,
    Overlaps,
    Contains,
    Within,
    Equal,
}

One of the six coarsened Allen relations between two time regions.

The six are exhaustive and mutually exclusive over concrete day-intervals: disjoint pairs are Before/After, coincident pairs are Equal, proper containment (including a shared endpoint) is Contains/Within, and partial overlap is Overlaps.

Variants

Before

A ends before B starts (no shared day).

After

A starts after B ends (no shared day).

Overlaps

A and B share days but each also has days the other lacks on opposite sides (partial overlap).

Contains

B lies within A without being equal to it.

Within

A lies within B without being equal to it.

Equal

A and B cover exactly the same days.

Implementations

impl Relation

pub const ALL: [Self; 6]

All six relations, in canonical order.

pub const fn converse(self) -> Self

The relation that holds of (B, A) whenever self holds of (A, B).

pub const fn as_str(self) -> &'static str

Lower-case name: "before", "after", "overlaps", "contains", "within" or "equal".

Trait Implementations

impl Clone for Relation

fn clone(&self) -> Relation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Relation

impl Debug for Relation

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

Formats the value using the given formatter.

impl Eq for Relation

impl PartialEq for Relation

fn eq(&self, other: &Relation) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Relation