Module width 

Property index width contracts, per-axis markers, and metadata-word codecs.

Defines the sealed PropertyIndex / PropertySnapshotMetaWord width traits, the three built-in PropertyAxis markers and their AxisIndex topology-bound dispatch, the snapshot section-kind constants keyed by metadata width, and the little-endian metadata-word conversion helpers.

Structs

ElementAxis

Element-keyed axis marker.

IncidenceAxis

Incidence-keyed axis marker.

RelationAxis

Relation-keyed axis marker.

Constants

SNAPSHOT_KIND_ELEMENT_IDENTITY_MAP_BASE

4-aligned base section kind for element local-to-canonical maps.

SNAPSHOT_KIND_IDENTITY_MODES_BASE

4-aligned base section kind for identity-mode metadata records.

SNAPSHOT_KIND_INCIDENCE_IDENTITY_MAP_BASE

4-aligned base section kind for incidence local-to-canonical maps.

SNAPSHOT_KIND_PROPERTY_DATA_BASE

4-aligned base section kind for Arrow IPC property-layer payloads.

SNAPSHOT_KIND_PROPERTY_DESCRIPTORS_BASE

4-aligned base section kind for property-layer descriptors; the persisted kind is BASE | WIDTH_CODE for the metadata width.

SNAPSHOT_KIND_RELATION_IDENTITY_MAP_BASE

4-aligned base section kind for relation local-to-canonical maps.

SNAPSHOT_PROPERTY_VERSION

Internal property/identity snapshot section version.

Traits

AxisIndex

Axis-aware topology bound accessor.

PropertyAxis

Marker trait selecting which axis of a topology view a property layer keys against (elements, relations, or incidences).

PropertyIndex

Unsigned index width usable for sparse property indexes.

PropertySnapshotMetaWord

Metadata/canonical-ID word width for property and identity snapshot sections.