Bug 96756 – Web Inspector: automatically detect if class has reportMemoryUsage method

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

[Yury Semikhatsky]

Classes that support memory usage reporting should provide
void reportMemoryUsage(MemoryObjectInfo*) const;
method. If such method is present we should invoke it to collect
memory usage data, otherwise we should just count sizeof the class.
The method detection can be automated at compile time using using
template trick called SFINAE(http://en.wikipedia.org/wiki/Substitution_failure_is_not_an_error).

[Yury Semikhatsky]

Created attachment 164114 [details]
Patch to run on test bots, not for revew

[WebKit Review Bot]

Attachment 164114 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WTF/wtf/MemoryInstrumentation.h']" exit_code: 1
Source/WTF/wtf/MemoryInstrumentation.h:54:  The parameter name "object" adds no information, so it should be removed.  [readability/parameter_name] [5]
Source/WTF/wtf/MemoryInstrumentation.h:54:  The parameter name "memoryObjectInfo" adds no information, so it should be removed.  [readability/parameter_name] [5]
Total errors found: 2 in 1 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Yury Semikhatsky]

Created attachment 164170 [details]
Patch

[Build Bot]

Comment on attachment 164170 [details]
Patch

Attachment 164170 [details] did not pass win-ews (win):
Output: http://queues.webkit.org/results/13859240

[Ilya Tikhonovsky]

Created attachment 164202 [details]
Patch

[Build Bot]

Comment on attachment 164202 [details]
Patch

Attachment 164202 [details] did not pass mac-ews (mac):
Output: http://queues.webkit.org/results/13854532

[WebKit Review Bot]

Comment on attachment 164202 [details]
Patch

Attachment 164202 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://queues.webkit.org/results/13850644

[Early Warning System Bot]

Comment on attachment 164202 [details]
Patch

Attachment 164202 [details] did not pass qt-ews (qt):
Output: http://queues.webkit.org/results/13844784

[Gyuyoung Kim]

Comment on attachment 164202 [details]
Patch

Attachment 164202 [details] did not pass efl-ews (efl):
Output: http://queues.webkit.org/results/13858310

[Early Warning System Bot]

Comment on attachment 164202 [details]
Patch

Attachment 164202 [details] did not pass qt-wk2-ews (qt):
Output: http://queues.webkit.org/results/13854540

[Ilya Tikhonovsky]

Created attachment 164209 [details]
ups. Another patch for try bots with static keyword.

[Build Bot]

Comment on attachment 164209 [details]
ups. Another patch for try bots with static keyword.

Attachment 164209 [details] did not pass mac-ews (mac):
Output: http://queues.webkit.org/results/13845713

[Ilya Tikhonovsky]

Created attachment 164281 [details]
The patch for windows try bot. I can't reproduce the problem locally.

[Ilya Tikhonovsky]

Created attachment 164282 [details]
The patch for windows try bot. I can't reproduce the problem locally. Unused parameter was removed.

[Yury Semikhatsky]

Comment on attachment 164282 [details]
The patch for windows try bot. I can't reproduce the problem locally. Unused parameter was removed.

View in context: https://bugs.webkit.org/attachment.cgi?id=164282&action=review

> Source/WTF/wtf/MemoryInstrumentation.h:95
> +        countNotInstrumentedObject(object, memoryObjectInfo);

MemoryObjectInfo could be moved above MemoryInstrumentation in this header, then this method could be inlined.

[Ilya Tikhonovsky]

Created attachment 164350 [details]
comment addressed

[Alexander Pavlov (apavlov)]

Comment on attachment 164350 [details]
comment addressed

View in context: https://bugs.webkit.org/attachment.cgi?id=164350&action=review

> Source/WTF/ChangeLog:8
> +        Implemeted automatic selector of the memory reporting method. If

typo: Implemented

> Source/WebKit/chromium/tests/MemoryInstrumentationTest.cpp:294
> +TEST(MemoryInstrumentationTest, detectReportMemoryUsageMethod)

This test should either test both memory usage reporting methods or have a different name that implies only the capability of addMember() to reportMemoryUsage() (but not reportObjectInfo()) is tested.

[Ilya Tikhonovsky]

Committed r128732: <http://trac.webkit.org/changeset/128732>