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Re: [FileAPI] Why is FileList a sequence?

From: Ian Hickson <ian@hixie.ch>
Date: Fri, 11 Mar 2011 20:31:06 +0000 (UTC)
To: Simon Pieters <simonp@opera.com>
cc: Cameron McCormack <cam@mcc.id.au>, Anne van Kesteren <annevk@opera.com>, Arun Ranganathan <arun@mozilla.com>, public-webapps <public-webapps@w3.org>
Message-ID: <Pine.LNX.4.64.1103112030470.944@ps20323.dreamhostps.com>
On Fri, 11 Mar 2011, Simon Pieters wrote:
> On Fri, 11 Mar 2011 01:02:25 +0100, Ian Hickson <ian@hixie.ch> wrote:
> 
> > On Fri, 11 Mar 2011, Cameron McCormack wrote:
> > > Anne van Kesteren:
> > > > > > Lets at least remove sequence<T> from the draft then.
> > > 
> > > Cameron McCormack:
> > > > > Other specifications use it, and it really serves a different
> > > > > purpose from things like NodeList, like passing in native Array
> > > > > objects to DOM methods.  So I don’t think we should remove it.
> > > 
> > > Anne van Kesteren:
> > > > Which specifications use it then?
> > > 
> > > The ones I could find were: Web Applications 1.0, RDFa API and The
> > > System Information API (admittedly fewer than I thought!).
> > 
> > Web Apps 1.0 will change if you need it to. Don't constrain on my account
> > here. I'll do whatever you think we should do. The only places I use it
> > are in an argument to a method because I want to allow authors to pass in
> > literal JS Arrays of values, and on a NodeList descendant where I just
> > wanted the user of the API to be able to get a JS Array of values. I don't
> > think there's much implementation compatibility constraint here.
> 
> Opera has implemented typedef sequence<MessagePort> MessagePortArray for 
> cross-document messaging and shared workers. As far as I know, our impl 
> is spec compliant, and I see little point in changing it.

Yeah heycam explained that that particular usage was ok.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Friday, 11 March 2011 20:31:36 GMT

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