Class MultiIndexSet<IndexType>

A set of indices each associated with a number identifier.

Type Parameters

IndexType extends number

Index

Constructors

Methods

cursor has types

Constructors

constructor

new MultiIndexSet<IndexType extends number>(
prefixSumTable_: Uint32Array,
elements_: Uint32Array,
): MultiIndexSet<IndexType>
Construct this with a prefix sum table and matching elements table.
Type Parameters
- IndexType extends number
Parameters
- prefixSumTable_: Uint32Array
  A prefix sum array where each item is its summed index, with an extra element at the end with the entire count.
- elements_: Uint32Array
  The elements in the index, matching the prefix sum indices * 2, where there's 2 elements in the array for each item, packed (first has the bottom 5 bits masked out, and is the top bits, the second is a bit field representing the elements for the top bit range, in a unioned-one-hot representation).
Returns MultiIndexSet<IndexType>
- Defined in indexing/multi_index_set.ts:22

Methods

cursor

cursor(...indexTypes: IndexType[]): IIndexSetCursor
Get a cursor that lets you iterate over the union of the sets of multiple indices.
Parameters
- ...indexTypes: IndexType[]
  The list of types to build a cursor out of.
Returns IIndexSetCursor
The cursor for the list of types.
- Defined in indexing/multi_index_set.ts:75

has

has(indexType: IndexType, denseIndex: number): boolean
Does the set have a particular index for a particular type.
Parameters
- indexType: IndexType
  The index type to check for.
- denseIndex: number
  The dense index in the set to check.
Returns boolean
True if it has the type.
- Defined in indexing/multi_index_set.ts:55

types

types(): IterableIterator<IndexType>
All the types with a non-zero size in the index.

Returns IterableIterator<IndexType>
Yields
- Defined in indexing/multi_index_set.ts:32