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RESOLVED FIXED
202650
Throw the right exception upon memory exhaustion in Array::slice
https://bugs.webkit.org/show_bug.cgi?id=202650
Summary
Throw the right exception upon memory exhaustion in Array::slice
Robin Morisset
Reported
2019-10-07 13:22:50 PDT
rdar://problem/55255615
Attachments
Patch
(5.18 KB, patch)
2019-10-07 13:29 PDT
,
Robin Morisset
no flags
Details
Formatted Diff
Diff
Patch
(5.47 KB, patch)
2019-10-07 20:35 PDT
,
Robin Morisset
no flags
Details
Formatted Diff
Diff
Patch
(5.47 KB, patch)
2019-10-08 11:26 PDT
,
Robin Morisset
no flags
Details
Formatted Diff
Diff
Patch
(5.46 KB, patch)
2019-10-08 13:58 PDT
,
Robin Morisset
no flags
Details
Formatted Diff
Diff
Show Obsolete
(3)
View All
Add attachment
proposed patch, testcase, etc.
Robin Morisset
Comment 1
2019-10-07 13:29:10 PDT
Created
attachment 380351
[details]
Patch
Robin Morisset
Comment 2
2019-10-07 20:35:03 PDT
Created
attachment 380387
[details]
Patch
Robin Morisset
Comment 3
2019-10-08 11:26:11 PDT
Created
attachment 380447
[details]
Patch trivial rebase (exec -> callFrame)
Saam Barati
Comment 4
2019-10-08 13:14:32 PDT
Comment on
attachment 380447
[details]
Patch Lots of red
Robin Morisset
Comment 5
2019-10-08 13:31:23 PDT
(In reply to Saam Barati from
comment #4
)
> Comment on
attachment 380447
[details]
> Patch > > Lots of red
Seems like I accidentally resubmitted the old patch instead of the rebased one. I'll fix it imminently.
Robin Morisset
Comment 6
2019-10-08 13:58:52 PDT
Created
attachment 380462
[details]
Patch Rebasing again, and attaching the right patch this time.
Saam Barati
Comment 7
2019-10-20 21:58:37 PDT
Comment on
attachment 380462
[details]
Patch View in context:
https://bugs.webkit.org/attachment.cgi?id=380462&action=review
> Source/JavaScriptCore/runtime/ArrayBuffer.cpp:298 > +RefPtr<ArrayBuffer> ArrayBuffer::slice(double begin, double end) const
Do callers of these various functions check for exceptions?
Robin Morisset
Comment 8
2019-10-21 13:51:41 PDT
(In reply to Saam Barati from
comment #7
)
> Comment on
attachment 380462
[details]
> Patch > > View in context: >
https://bugs.webkit.org/attachment.cgi?id=380462&action=review
> > > Source/JavaScriptCore/runtime/ArrayBuffer.cpp:298 > > +RefPtr<ArrayBuffer> ArrayBuffer::slice(double begin, double end) const > > Do callers of these various functions check for exceptions?
As far as I can tell, they are only called from arrayBufferProtoFuncSlice, which is installed as a normal JS function in JSArrayBufferPrototype.cpp at line 116: JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->slice, arrayBufferProtoFuncSlice, static_cast<unsigned>(PropertyAttribute::DontEnum), 2); So I believe it should be fine (and the fact that all bots are green is encouraging), but I may be wrong.
WebKit Commit Bot
Comment 9
2019-10-21 15:47:23 PDT
Comment on
attachment 380462
[details]
Patch Clearing flags on attachment: 380462 Committed
r251392
: <
https://trac.webkit.org/changeset/251392
>
WebKit Commit Bot
Comment 10
2019-10-21 15:47:25 PDT
All reviewed patches have been landed. Closing bug.
Radar WebKit Bug Importer
Comment 11
2019-10-21 15:48:19 PDT
<
rdar://problem/56480013
>
Yusuke Suzuki
Comment 12
2019-10-23 20:28:59 PDT
Can you check WebCore side too? ArrayBuffer is also used in WebCore. For example, StructuredClone.cpp is using slice() call. And WebCore/fileapi/FileReaderLoader.cpp is also using it. And I prefer renaming it to `trySlice` if it can fail.
Yusuke Suzuki
Comment 13
2020-03-15 04:29:10 PDT
(In reply to Yusuke Suzuki from
comment #12
)
> Can you check WebCore side too? ArrayBuffer is also used in WebCore. > For example, StructuredClone.cpp is using slice() call. > And WebCore/fileapi/FileReaderLoader.cpp is also using it. > > And I prefer renaming it to `trySlice` if it can fail.
I'll fix this issue.
https://bugs.webkit.org/show_bug.cgi?id=209121
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