[webkit-dev] Runtime setting for incomplete features

Darin Fisher darin at google.com
Mon Oct 5 22:38:23 PDT 2009

On Mon, Oct 5, 2009 at 10:35 PM, Dmitry Titov <dimich at chromium.org> wrote:

> On Mon, Oct 5, 2009 at 9:48 PM, Sam Weinig <sam.weinig at gmail.com> wrote:
> I would still very much like a good solution to runtime enabling/disabling
>> features in the bindings as I think this would be a useful addition to the
>> webkit arsenal and I am curious why it is thought that doing it right will
>> be prohibitively expensive (it may very well be, I just don't know why that
>> is).
> This is a good question, I don't see also why it will be very difficult...
> It seems most of the features we are talking about are exposed off window
> object that already has custom getters. Also, if it can be assumed that the
> flags don't change during lifetime of the browser process (which is true for
> Chromium-like command-line flags) then it is not needed to reset script
> state and caches on change. It might be not a very complex change...
> Dmitry

Yeah, exactly!  I'm sure we can exploit this property of the feature to make
the implementation low cost.  (It is similar to how V8 extensions work.)
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