/**
 * During table cell rendering, the colSpan/rowSpan of previously rendered cells
 * affects whether subsequent cells should be rendered.
 *
 * `SpanManager` internally maintains a state that records the colSpan/rowSpan
 * of the most recently rendered cells, allowing subsequent cells to quickly
 * determine whether they should skip rendering.
 */
export default class SpanManager {
    private rects;
    testSkip(rowIndex: number, colIndex: number): boolean;
    stripUpwards(rowIndex: number): void;
    add(rowIndex: number, colIndex: number, colSpan: number, rowSpan: number): void;
}