import { Maybe } from "./maybe";
import { Either } from "./either";
export interface Functor<A> {
    map<B>(f: (a: A) => B): Functor<B>;
    mapTo<B>(b: B): Functor<B>;
}
export declare type AnyFunctor<A> = A[] | Functor<A>;
export declare abstract class AbstractFunctor<A> implements Functor<A> {
    abstract map<B>(f: (a: A) => B): Functor<B>;
    mapTo<B>(b: B): Functor<B>;
}
export declare function functor(constructor: Function): void;
export declare function map<A, B>(f: (a: A) => B, functor: Maybe<A>): Maybe<B>;
export declare function map<A, B, C>(f: (b: B) => C, functor: Either<A, B>): Either<A, C>;
export declare function map<A, B>(f: (a: A) => B, functor: Functor<A>): any;
export declare function map<A, B>(f: (a: A) => B, functor: A[]): B[];
export declare function mapTo<A, B>(b: B, functor: Maybe<A>): Maybe<B>;
export declare function mapTo<A, B, C>(c: C, functor: Either<A, B>): Either<A, C>;
export declare function mapTo<A, B>(b: B, functor: A[]): B[];
export declare function mapTo<A, B>(b: B, functor: Functor<A>): any;
export declare function mapMap<A, B>(f: (a: A) => B, functor: AnyFunctor<AnyFunctor<A>>): any;