Re: Removing 'caller' from WebIDL

On Fri, Sep 9, 2011 at 1:50 AM, Cameron McCormack <> wrote:
> On 26/08/11 6:21 AM, Jonas Sicking wrote:
>> The 'caller' annotation in WebIDL makes an object callable. This is
>> needed for legacy support at least for the document.all (non-firefox
>> browsers also support it on other objects, but it's not been
>> established that this is actually needed for webcompat).
>> My understanding is that this convention is not implementable in
>> Javascript.
>> I think we should remove this from WebIDL as to prevent the pattern
>> from spreading any further. Apparently the DAP contacts API has
>> started using it, as has the microdata DOM API. So it appears that
>> putting it in WebIDL has made it easier for the pattern to spread.
>> Prose can always be added to the document.all object (and other
>> objects too if needed) as to make them callable.
> I'd like to wait to see what the results of the WebKit experiments are, and
> whether that indicates whether the non-HTMLAllCollection callers will be
> removed from the HTML spec.
> For the moment, I will give Anne's suggestion a try -- I'll leave it in the
> spec, and rename it to legacycaller.
> Jonas, can you indicate whether this resolution is satisfactory?

I'm ok with this for now, but I don't want to leave things in this
state forever without getting feedback from webkit that legacycaller
is really needed in as many interfaces as it's currently used.

/ Jonas

Received on Friday, 9 September 2011 17:13:01 UTC