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Re: Exposing constructors of readonly interfaces to web authors

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Mon, 30 Jun 2014 11:11:41 -0400
Message-ID: <53B17E2D.60900@mit.edu>
To: public-script-coord@w3.org
On 6/29/14, 10:55 PM, Robert O'Callahan wrote:
> Are you saying we cannot have a WebIDL interface (DOMRectReadOnly)
> representing a "common base class" for DOMQuad.bounds rectangles and
> mutable DOMRects, because there are separate implementations with
> different internal state?

You can, but it takes some gyrations: effectively defining some sort of 
virtual hooks on the parent class and implementing them in the subclasses.

The main benefit would be that scripts would have a one-stop place to 
hook getters on all rectangles by doing that on 
DOMRectReadOnly.prototype, but it's not terribly clear to me how useful 
that is.

Received on Monday, 30 June 2014 15:12:10 UTC

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