import { IIndexSetCursor } from "../core/i_index_set_cursor.js";
/**
 * Cursor to a single index set span for queries.
 */
export declare class SingleIndexSetCursor implements IIndexSetCursor {
    private buffer_?;
    private currentIndex_;
    private end_;
    private high_;
    private low_;
    /**
     * Construct this, not accessible.
     */
    private constructor();
    /**
     * Get the current high 27 bits, as a regular number with the lower 5 bits
     * padded to zero.
     *
     * @return {number} The high bits.
     */
    get high(): number;
    /**
     * Get a set of up to 32 low bits, in one-hot format or'd together,
     * so that each bit index represents a 5 bit bottom part corresponding to the top 27
     *
     * @return {number} The high bits.
     */
    get low(): number;
    /**
     * Step this cursor to the next high (and matching set of lows)
     *
     * @return {boolean} True if this is not at the end of the sequence,
     * false otherwise.
     */
    step(): boolean;
    /**
     * Allocate a SingleIndexSetCursor, re-using freed ones in the pool.
     *
     * @param buffer
     * @param currentIndex
     * @param end
     * @return {SingleIndexSetCursor} The allocated cursor.
     */
    static allocate(buffer: Uint32Array, currentIndex?: number, // note, ? is default undefined
    end?: number): SingleIndexSetCursor;
    /**
     * Free this cursor back to the pool.
     */
    free(): void;
}
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