/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
/**
 * A range in the {@link RangeTracker}
 *
 * @deprecated No replacement.
 * @internal
 */
export interface IRange {
    primary: number;
    secondary: number | undefined;
    length: number;
}
/**
 * A serialized version of the {@link RangeTracker}
 *
 * @deprecated No replacement.
 * @internal
 */
export interface IRangeTrackerSnapshot {
    ranges: IRange[];
    lastPrimary: number;
    lastSecondary: number | undefined;
}
/**
 * Helper class that keeps track of the relation between two ranges in a 1:N fashion. Primary
 * is continuous and always maps to a single value in secondary above the base value. The range
 * defines an increasing step function.
 *
 * Used by deli to keep track of the branch map
 *
 * @deprecated No replacement.
 * @internal
 */
export declare class RangeTracker {
    private ranges;
    private lastPrimary;
    private lastSecondary;
    get base(): number;
    /**
     * Getter for the last primary that was added
     *
     * @returns last primary that was added
     */
    get primaryHead(): number;
    /**
     * Getter for the last secondary that was added
     *
     * @returns last secondary that was added
     */
    get secondaryHead(): number | undefined;
    constructor(primary: IRangeTrackerSnapshot);
    constructor(primary: number, secondary: number);
    /**
     * Returns a serialized form of the RangeTracker
     */
    serialize(): IRangeTrackerSnapshot;
    /**
     * Add a primary, secondary pair to the range
     *
     * @param primary - the primary number in the range
     * @param secondary - the secondary number in the range
     */
    add(primary: number, secondary: number): void;
    /**
     * Get the closest range to the primary
     *
     * @param primary - the primary value to look for
     * @returns the closest range to the primary
     */
    get(primary: number): number;
    /**
     * Update the range of primary
     *
     * @param primary - the primary value to update
     */
    updateBase(primary: number): void;
}
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