Bug 69948 – Web Inspector: [Chromium] Heap profiler should designate weak references

• Component: Web Inspector (Deprecated)
• Status: RESOLVED FIXED

[Mikhail Naganov]

Weak persistent handles doesn't prevent objects from deletion, so they either should not be shown in retaining paths, or should be marked somehow.

[Mikhail Naganov]

See http://code.google.com/p/v8/issues/detail?id=1832 for details.

[Mikhail Naganov]

Created attachment 117869 [details]
Patch

[Yury Semikhatsky]

Comment on attachment 117869 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=117869&action=review

> Source/WebCore/inspector/front-end/HeapSnapshot.js:287
> +        case "weak": return "[[" + this.name + "]]";

Can we have a tooltip explaining to the user what this text graphics means?

[Mikhail Naganov]

Comment on attachment 117869 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=117869&action=review

>> Source/WebCore/inspector/front-end/HeapSnapshot.js:287
>> +        case "weak": return "[[" + this.name + "]]";
> 
> Can we have a tooltip explaining to the user what this text graphics means?

This actually should never appear in path traces, as we exclude weak references when building them. So this is mostly for debugging purposes.

[WebKit Review Bot]

Comment on attachment 117869 [details]
Patch

Attachment 117869 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://queues.webkit.org/results/10736347

New failing tests:
svg/custom/linking-uri-01-b.svg

[Mikhail Naganov]

Manually committed r102006.

2011-12-05  Mikhail Naganov  <[e-mail]>

        Web Inspector: [Chromium] Heap profiler should designate weak references.
        https://bugs.webkit.org/show_bug.cgi?id=69948

        Weak references are now ignored when tracing paths to GC roots.

        Reviewed by Yury Semikhatsky.

        * inspector/front-end/HeapSnapshot.js:
        (WebInspector.HeapSnapshotEdge.prototype.get isWeak):
        (WebInspector.HeapSnapshotEdge.prototype.toString):
        (WebInspector.HeapSnapshotEdge.prototype.get _hasStringName):
        (WebInspector.HeapSnapshotRetainerEdge.prototype.get isWeak):
        (WebInspector.HeapSnapshot.prototype._init):
        (WebInspector.HeapSnapshotPathFinder.prototype._fillRootChildren):
        (WebInspector.HeapSnapshotPathFinder.prototype._skipEdge):