Enum PropertySubject 

pub enum PropertySubject {
    Element(ElementId),
    Relation(RelationId),
    Incidence(IncidenceId),
}

Subject that can own properties.

Invariant

The variant declaration order (Element, Relation, Incidence) is load-bearing: the derived Ord ranks them in that order, and that ranking MUST match the wire kind tags 0/1/2 produced by the wire encode_subject codec. The frozen base writes property records in BTreeMap<PropertySubject, …> order — sorted by (subject_kind, subject_id, key) — and the read path materializes them back into that same keyed order; reordering these variants would silently desynchronize the two. See the wire encode_subject docs for the full contract and the open-time assertion in backing that guards it.

Performance

Copying, comparing, ordering, and hashing are O(1).

Variants

Element(ElementId)

Element property subject.

Relation(RelationId)

Relation property subject.

Incidence(IncidenceId)

Incidence property subject.

Implementations

impl PropertySubject

pub const fn family(self) -> PropertyFamily

Returns the property family for this subject.

Performance

This function is O(1).

Trait Implementations

impl Clone for PropertySubject

fn clone(&self) -> PropertySubject

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PropertySubject

impl Debug for PropertySubject

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PropertySubject

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for PropertySubject

impl Hash for PropertySubject

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 PropertySubject

fn cmp(&self, other: &PropertySubject) -> 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 PropertySubject

fn eq(&self, other: &PropertySubject) -> 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 PartialOrd for PropertySubject

fn partial_cmp(&self, other: &PropertySubject) -> 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 PropertySubject

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 PropertySubject