Module set 

Structs

Axis

A single contiguous integer axis of a dense index grid. Carried by Set (see Set::axes) so an crate::IndexedVar built over a range can store its scalars densely and map a key to a flat offset without hashing.

Set

A finite, ordered index set, parameterized by the type K its keys decode to.

SetIter

Enums

IndexKey

A serializable index key from a Set.

Traits

FromIndexKey

Typed projection of an IndexKey. Implementations panic when the key’s shape does not match the target type, the same contract as crate::indexed::IndexedVar indexing on a missing key.

KeyCat

Type-level concatenation of index key types, mirroring the runtime tuple flattening in Set::product. The arity ceiling is 4, matching the FromIndexKey/From<(...)> tuple implementations.

ScalarKey

Marker for non-tuple (“scalar”) index key types. Lets KeyCat distinguish the scalar base case from the tuple-extension cases without overlap.

Type Aliases

IndexTuple

Heap-allocated tuple key payload. Immutable after construction.