Bug 204546 – Perform microtask checkpoint after each task as spec'ed

• Component: DOM
• Status: RESOLVED FIXED

[Ryosuke Niwa]

Implement the processing model of the HTML5 event loop to perform a microtask checkpoint after performing tasks's steps:
https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model

[Radar WebKit Bug Importer]

<rdar://problem/57449333>

[Ryosuke Niwa]

Created attachment 384232 [details]
Patch

[EWS Watchlist]

Comment on attachment 384232 [details]
Patch

Attachment 384232 [details] did not pass win-ews (win):
Output: https://webkit-queues.webkit.org/results/13274794

New failing tests:
svg/as-image/svg-nested.html

[EWS Watchlist]

Created attachment 384235 [details]
Archive of layout-test-results from ews213 for win-future

The attached test failures were seen while running run-webkit-tests on the win-ews.
Bot: ews213  Port: win-future  Platform: CYGWIN_NT-10.0-17763-3.0.5-338.x86_64-x86_64-64bit

[Ryosuke Niwa]

Comment on attachment 384232 [details]
Patch

Ping reviewers.

[Chris Dumez]

Comment on attachment 384232 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=384232&action=review

> Source/WebCore/dom/EventLoop.cpp:85
> +        m_groupsWithSuspenedTasks.clear();

typo: m_groupsWithSuspenedTasks -> m_groupsWithSuspendedTasks

> Source/WebCore/testing/Internals.h:780
> +    ExceptionOr<void> queueMicrotaskInTask(Document&, const String& source, RefPtr<VoidCallback>&&);

Kind of a strange name IMHO.

[Ryosuke Niwa]

(In reply to Chris Dumez from comment #6)
> Comment on attachment 384232 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=384232&action=review
> 
> > Source/WebCore/dom/EventLoop.cpp:85
> > +        m_groupsWithSuspenedTasks.clear();
> 
> typo: m_groupsWithSuspenedTasks -> m_groupsWithSuspendedTasks
> 
> > Source/WebCore/testing/Internals.h:780
> > +    ExceptionOr<void> queueMicrotaskInTask(Document&, const String& source, RefPtr<VoidCallback>&&);
> 
> Kind of a strange name IMHO.

How about queueTaskToQueueMicrotask?

[Chris Dumez]

(In reply to Ryosuke Niwa from comment #7)
> (In reply to Chris Dumez from comment #6)
> > Comment on attachment 384232 [details]
> > Patch
> > 
> > View in context:
> > https://bugs.webkit.org/attachment.cgi?id=384232&action=review
> > 
> > > Source/WebCore/dom/EventLoop.cpp:85
> > > +        m_groupsWithSuspenedTasks.clear();
> > 
> > typo: m_groupsWithSuspenedTasks -> m_groupsWithSuspendedTasks
> > 
> > > Source/WebCore/testing/Internals.h:780
> > > +    ExceptionOr<void> queueMicrotaskInTask(Document&, const String& source, RefPtr<VoidCallback>&&);
> > 
> > Kind of a strange name IMHO.
> 
> How about queueTaskToQueueMicrotask?

I like this better. It makes it clearer what the implementation actually does.

[Ryosuke Niwa]

Committed r253091: <https://trac.webkit.org/changeset/253091>