使用静态方法扩展类的TypeScript声明。

我正在寻找一些关于如何正确处理这种情况的建议

我有

东西.d.ts

export class Sprite {

    static fromFrame(frameId: string): Sprite;
    static fromImage(imageId: string, crossorigin?: boolean, scaleMode?: number): Sprite;

}

export class TilingSprite extends Sprite {

    static fromFrame(frameId: string, width?: number, height?: number): TilingSprite;
    static fromImage(imageId: string, width?: number, height?: number, crossorigin?: boolean, scaleMode?: number): TilingSprite;

}

在本例中，我得到以下错误：

Error   40  Class static side 'typeof TilingSprite' incorrectly extends base class static side 'typeof Sprite'.   Types of property 'fromImage' are incompatible.
    Type '(imageId: string, width?: number, height?: number, crossorigin?: boolean, scaleMode?: number) => ...' is not assignable to type '(imageId: string, crossorigin?: boolean, scaleMode?: number)
=> Sprite'.
      Types of parameters 'width' and 'crossorigin' are incompatible.
        Type 'number' is not assignable to type 'boolean'.

我真的看不到解决问题的方法，或者说，这与我预期的行为不同

我怎样才能清楚地解决这个签名

我怎样才能清楚地解决这个签名

不干净，但可以通过函数重载来完成。e、 g:

declare class Sprite {
    static fromImage(imageId: string, crossorigin?: boolean, scaleMode?: number): Sprite;
}

declare class TilingSprite extends Sprite {
    static fromImage(imageId: string, crossorigin?: boolean, scaleMode?: number): Sprite;
    static fromImage(imageId: string, width?: number, height?: number, crossorigin?: boolean, scaleMode?: number): TilingSprite;
}

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再次感谢@basarat