Bug 156890 – Drop [UsePointersEvenForNonNullableObjectArguments] from MutationObserver

• Component: Bindings
• Status: RESOLVED FIXED

[Chris Dumez]

Drop [UsePointersEvenForNonNullableObjectArguments] from MutationObserver

[Chris Dumez]

Created attachment 277005 [details]
Patch

[Darin Adler]

Comment on attachment 277005 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=277005&action=review

> Source/WebCore/bindings/js/JSMutationObserverCustom.cpp:58
> +    Ref<JSMutationCallback> callback = JSMutationCallback::create(object, jsConstructor->globalObject());
> +    JSObject* jsObserver = asObject(toJS(exec, jsConstructor->globalObject(), MutationObserver::create(WTFMove(callback))));

I would have used auto here or maybe even put everything on one line!

> Source/WebCore/dom/ChildListMutationScope.cpp:133
> +    Ref<NodeList> addedNodes = StaticNodeList::adopt(m_addedNodes);
> +    Ref<NodeList> removedNodes = StaticNodeList::adopt(m_removedNodes);
> +    Ref<MutationRecord> record = MutationRecord::createChildList(m_target, WTFMove(addedNodes), WTFMove(removedNodes), WTFMove(m_previousSibling), WTFMove(m_nextSibling));
> +    m_observers->enqueueMutationRecord(WTFMove(record));

I would have used auto here more. Or not used local variables so much. Or some of each.

> Source/WebCore/dom/MutationObserverInterestGroup.cpp:82
> +        observer->enqueueMutationRecord(*mutationWithNullOldValue);

This should be mutationWithNullOldValue.releaseNonNull().

[Chris Dumez]

Comment on attachment 277005 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=277005&action=review

>> Source/WebCore/dom/MutationObserverInterestGroup.cpp:82
>> +        observer->enqueueMutationRecord(*mutationWithNullOldValue);
> 
> This should be mutationWithNullOldValue.releaseNonNull().

I think this may change behavior since this is in a for loop and we check if mutationWithNullOldValue is null earlier.

[Chris Dumez]

Created attachment 277061 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 277061 [details]
Patch

Clearing flags on attachment: 277061

Committed r199878: <http://trac.webkit.org/changeset/199878>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.