Re: [webcomponents] Auto-creating shadow DOM for custom elements

[Brian Kardell]

>
>
> As an alternate suggestion, and one that might dodge the subclassing
> issues, perhaps createShadowRoot could take an optional template argument
> and clone it automatically. Then this:
>
>         this._root = this.createShadowRoot();
>         this._root.appendChild(template.content.cloneNode());
>
> Could turn into this:
>
>         this._root = this.createShadowRoot(template);
>
> Which is quite a bit simpler, and involves fewer basic contents.
>
>
Just to be totally clear, you are suggesting that the later would desugar
into precisely the former, correct?  What would happen if you called
createShadowRoot with some other kind of element?