Struct Coordinate 

pub struct Coordinate {
    pub dims: BTreeMap<CategoryId, ItemId>,
}

A coordinate maps categories to items: one cell of a measure’s tensor.

BTreeMap gives a stable, ordered key (important for hashing/serialization and, later, for deriving a fixed differential-dataflow key).

Fields

dims: BTreeMap<CategoryId, ItemId>

Implementations

impl Coordinate

pub fn new() -> Self

pub fn from_pairs(pairs: impl IntoIterator<Item = (CategoryId, ItemId)>) -> Self

pub fn get(&self, cat: CategoryId) -> Option<ItemId>

pub fn with(self, cat: CategoryId, item: ItemId) -> Self

pub fn categories(&self) -> impl Iterator<Item = CategoryId> + '_

The set of categories this coordinate is defined over.

Trait Implementations

impl Clone for Coordinate

fn clone(&self) -> Coordinate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Coordinate

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

Formats the value using the given formatter.

impl Default for Coordinate

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Coordinate

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Coordinate

impl Hash for Coordinate

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Coordinate

fn cmp(&self, other: &Coordinate) -> 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 PartialEq for Coordinate

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Coordinate

fn partial_cmp(&self, other: &Coordinate) -> 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 Serialize for Coordinate

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Coordinate