import { Path } from './Merger';
export interface ComparisonResult {
    equal: boolean;
    couldBeEqual?: boolean;
    similarity?: number;
}
export interface NormalizedComparisonResult extends ComparisonResult {
    couldBeEqual: boolean;
    similarity: number;
}
export interface ArrayComparisonSource {
    base: any[];
    ours: any[];
    theirs: any[];
}
export type ArrayElementPosition = number | Array<{
    index: number;
    similarity: number;
}> | null;
export interface ArrayElementResult {
    object: any;
    basePosition: ArrayElementPosition;
    oursPosition: ArrayElementPosition;
    theirsPosition: ArrayElementPosition;
}
export declare class Comparer {
    /**
     * Compare two variables, of any type.
     */
    compare(a: any, b: any, parentPath?: Path, filename?: string | null): ComparisonResult;
    /**
     * Compare two arrays.
     */
    compareArrays(a: any, b: any, parentPath?: Path, filename?: string | null): ComparisonResult | null;
    /**
     * Compare two objects (not arrays).
     */
    compareObjects(a: any, b: any, parentPath?: Path, filename?: string | null): ComparisonResult | null;
    /**
     * Compare blocks of settings
     */
    private compareSettingBlocks;
    /**
     * Compare Shopify setting fields
     */
    private compareSettings;
    /**
     * Compare two strings.
     */
    compareStrings(a: string, b: string, parentPath?: string[] | null, filename?: string | null): ComparisonResult;
    /**
     * Default values for non-equal comparison results.
     */
    private unequal;
    /**
     * Default values for equal comparison results.
     */
    private equal;
    /**
     * Normalize the comparison result.
     */
    normalizeComparisonResult(result: ComparisonResult): NormalizedComparisonResult;
    /**
     * Get the possible positions of an object in an array.
     */
    getArrayElementPossiblePositions(object: Object, source: Array<any>, path?: Path, filename?: string | null): ArrayElementPosition;
    /**
     * Do a 3-way comparison of an object in 3 arrays.
     */
    getArrayElementDiff3(object: Object, sources: ArrayComparisonSource, path?: Path, filename?: string | null): ArrayElementResult;
}
export default Comparer;