import { Comparer } from './Comparer';
export interface BuildableComparer<T> {
    build(): Comparer<T>;
}
interface BaseComparerBuilder<T> extends BuildableComparer<T> {
    sortKey<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    sortKeyDescending<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
}
export interface ThenComparerBuilder<T> extends BuildableComparer<T> {
    thenKey<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    thenKeyDescending<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
}
export declare class ComparerBuilder<T> implements BaseComparerBuilder<T>, ThenComparerBuilder<T> {
    static create<T>(): ComparerBuilder<T>;
    thenKey<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    thenKeyDescending<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    private comparers;
    constructor(comparers?: Array<Comparer<T>> | undefined);
    sortKey<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    sortKeyDescending<TComparable>(selector: (x: T) => TComparable): ThenComparerBuilder<T>;
    private createComparer;
    build(): Comparer<T>;
}
export {};