module Rx {

// Type alias for observables and promises

export type ObservableOrPromise<T> = IObservable<T> | Observable<T> | Promise<T>;

export type ArrayLike<T> = Array<T> | { length: number;[index: number]: T; };

// Type alias for arrays and array like objects

export type ArrayOrIterable<T> = ArrayLike<T>;

/**

* Promise A+

*/

export interface Promise<T> {

then<R>(onFulfilled: (value: T) => R|Promise<R>, onRejected: (error: any) => Promise<R>): Promise<R>;

then<R>(onFulfilled: (value: T) => R|Promise<R>, onRejected?: (error: any) => R): Promise<R>;

}

/**

* Promise A+

*/

export interface IPromise<T> extends Promise<T> { }

/**

* Represents a push-style collection.

*/

export interface IObservable<T> { }

/**

* Represents a push-style collection.

*/

export interface Observable<T> extends IObservable<T> { }

}