[webkit-reviews] review granted: [Bug 179500] AX: AOM: Implement relation type properties : [Attachment 328064] patch

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has granted Nan Wang <n_wang at apple.com>'s
request for review:
Bug 179500: AX: AOM: Implement relation type properties
https://bugs.webkit.org/show_bug.cgi?id=179500

Attachment 328064: patch

https://bugs.webkit.org/attachment.cgi?id=328064&action=review




--- Comment #6 from Ryosuke Niwa <rniwa at webkit.org> ---
Comment on attachment 328064
  --> https://bugs.webkit.org/attachment.cgi?id=328064
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=328064&action=review

r=me with the assertion change.

>>> Source/WebCore/accessibility/AccessibilityObject.cpp:2194
>>> +		 return elements.first();
>> 
>> What happens when elements contain more than one elements?
>> Should that ever happen? If so, is it really correct to return nullptr in
that case?
>> Where is this behavior spec'ed?
> 
> I implemented this as a convenient function for relation types that only
contain one AccessibleNode. Maybe we should add an assert here to make sure it
only contains one element.
> The more than one elements case should be addressed in another bug. In that
case we could have elementsValueForProperty(property)
> https://wicg.github.io/aom/spec/#accessiblenodelist-interface

Okay. Please add an assert to check that there is either 0 or 1 element.