TypeScript编译器混淆了大继承/扩展链

Question

我有以下(相当复杂的)扩展链。这是我的问题的一个最小的可重复的例子(显然类将有行为实现在我的应用程序)。

export class BaseModel
{
    public someBaseModelMethod(): void { }
}
export class BaseView
{
    public someBaseViewMethod(): void { }
}
export class CollectionView<TChildView extends BaseView, TModel extends BaseModel>
    extends BaseView
{
    public someCollectionViewMethod(): void { }
}
export class ItemView<TModel extends BaseModel>
    extends BaseView
{
    public setItem(model: TModel): void { }
}
export interface IGridView<TChildView extends ItemView<TModel>, TModel extends BaseModel>
    extends CollectionView<TChildView, TModel>
{
    someGridViewMethod(): void;
}
export class GridView<TChildView extends ItemView<TModel>, TModel extends BaseModel>
    extends CollectionView<TChildView, TModel>
    implements IGridView<TChildView, TModel>
{
    public someGridViewMethod(): void { }
}
function bind<TInterface>(key: string, implementation: new (...args: any[]) => TInterface) {
    // do some bindings here
}
bind<IGridView<ItemView<BaseModel>, BaseModel>>("IGridView", GridView);

当我编译时，我在最后一行的GridView部分(bind语句)上得到一个错误。错误如下:

TS2345 Argument of type 'typeof GridView' is not assignable to parameter of type 'new (...args: any[]) => IGridView<ItemView<BaseModel>, BaseModel>'.
    Type 'CollectionView<any, any>' is not assignable to type 'IGridView<ItemView<BaseModel>, BaseModel>'.
        Property 'someGridViewMethod' is missing in type 'CollectionView<any, any>'.

可以看到，它期望someGridViewMethod在CollectionView上。然而，GridView 扩展 CollectionView，那么为什么它期望在CollectionView类上找到GridView方法呢?

---

代码在2.0.3中可以正确编译，但在1.8.10中不能。

Answer 1

这在1.8.x和2.x中都可以正常编译:

type TypedGridView = { new (...args: any[]): IGridView<ItemView<BaseModel>, BaseModel> };
function bind<TInterface>(key: string, implementation: new (...args: any[]) => TInterface) {
    // do some bindings here
}
bind("IGridView", GridView as TypedGridView);

(code in playground)

似乎1.8.x编译器无法识别GridView作为构造函数:

IGridView<ItemView<BaseModel>, BaseModel>