class Point { constructor(public x: number, public y: number) { } static Origin: Point = { x: 0, y: 0 }; } module Point { var Origin = ""; // not an error, since not exported } module A { export class Point { constructor(public x: number, public y: number) { } static Origin: Point = { x: 0, y: 0 }; } export module Point { var Origin = ""; // not an error since not exported } }