/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import type { SequenceInterval } from "../intervals/index.js";
import type { ISharedSegmentSequence } from "../sequence.js";
import type { ISharedString } from "../sharedString.js";
import type { SequenceIntervalIndex } from "./intervalIndex.js";
/**
 * @internal
 */
export interface IEndpointIndex extends SequenceIntervalIndex {
    /**
     * @returns the previous interval based on the given position number.
     * If no such interval exists in this index, returns `undefined`
     */
    previousInterval(pos: number): SequenceInterval | undefined;
    /**
     * @returns the next interval based on the given position number.
     * If no such interval exists in this index, returns `undefined`
     */
    nextInterval(pos: number): SequenceInterval | undefined;
}
export declare class EndpointIndex implements IEndpointIndex {
    private readonly sequence;
    private readonly endIntervals;
    constructor(sequence: ISharedSegmentSequence<any>);
    previousInterval(pos: number): SequenceInterval | undefined;
    nextInterval(pos: number): SequenceInterval | undefined;
    add(interval: SequenceInterval): void;
    remove(interval: SequenceInterval): void;
}
/**
 * Creates an endpoint index for the provided SharedString.
 *
 * @internal
 */
export declare function createEndpointIndex(sharedString: ISharedString): IEndpointIndex;
//# sourceMappingURL=endpointIndex.d.ts.map