Module context 

Boundary-derived admin context.

Most records share their admin context with many neighbours, so contexts are interned as tuples of place record ids. A record body stores only the tuple id (ContextRef); this module stores the tuple table.

context/tuples  tuple_count u64, then per tuple 6 x u32 record ids
                (country, region, district, locality, neighbourhood, place),
                u32::MAX for absent

Structs

AdminContextTuple

ContextReader

ContextTupleWriter

RecordContext

Admin context of one record plus assignment flags.

Constants

CONTEXT_FLAG_AMBIGUOUS_ADMIN

CONTEXT_VERSION

SECTION_TUPLES