[webkit-dev] About WebIDL supplemental interfaces

Andrei Bucur abucur at adobe.com
Thu Jul 19 08:08:16 PDT 2012

Hello Webkitters!

The latest WD for WebIDL defines a supplemental interface of an interface A as any element of the acyclic graph of interfaces that is connected to A through "implements" statements or through the inheritance chain of another supplemental interface:

However, WebKitIDL defines "Supplemental" more like a "partial interface":

I'm asking this because CSS Regions spec defines the Region interface as an WebIDL supplemental interface that needs to be implemented by any object that can be a region (Element, Pseudo elements etc.). Is there a way in WebKit to write an interface that "implements" another as specified by WebIDL?

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