Bug 202479

Summary: Make DOMPoint a DOMLiveObject
Product: WebKit Reporter: Said Abou-Hallawa <sabouhallawa>
Component: SVGAssignee: Said Abou-Hallawa <sabouhallawa>
Status: RESOLVED INVALID    
Severity: Normal CC: annulen, cdumez, dbates, dino, esprehn+autocc, ews-watchlist, fmalita, gyuyoung.kim, kangil.han, kondapallykalyan, pdr, rakuco, ryuan.choi, schenney, sergio, ysuzuki, zimmermann
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 201782    
Bug Blocks: 191376    
Attachments:
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Patch for review ysuzuki: review-

Description Said Abou-Hallawa 2019-10-02 10:43:33 PDT 
In order to replace SVGPoint by DOMPoint, DOMPoint has to communicate changes with its observer. Changing DOMPoint will not be allowed if the observer is read-only.
Comment 1 Said Abou-Hallawa 2019-10-02 10:57:53 PDT 
Created attachment 380037 [details]
Patch
Comment 2 Said Abou-Hallawa 2019-10-03 10:02:37 PDT 
Created attachment 380127 [details]
Patch
Comment 3 Said Abou-Hallawa 2019-10-03 10:38:12 PDT 
Created attachment 380130 [details]
Patch
Comment 4 Said Abou-Hallawa 2019-10-03 10:49:18 PDT 
Created attachment 380133 [details]
Patch
Comment 5 Said Abou-Hallawa 2019-10-03 11:52:31 PDT 
Created attachment 380147 [details]
Patch
Comment 6 Yusuke Suzuki 2019-10-03 12:03:50 PDT 
Comment on attachment 380147 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=380147&action=review

> Source/WebCore/dom/DOMPoint.h:98
> +static_assert(sizeof(DOMPoint) == sizeof(DOMPointReadOnly) + sizeof(DOMLiveProperty), "");

Let's remove this. This `static_assert` ensures that it is OK that DOMPoint shares the same IsoHeap with DOMPointReadOnly.
But now, this patch changes DOMPoint, and now they are not the same layout. This patch introduced IsoHeap for DOMPoint (this is mandatory), and then, this static_assert is not necessary.
Comment 7 Said Abou-Hallawa 2019-10-03 12:55:14 PDT 
Created attachment 380154 [details]
Patch for review
Comment 8 Said Abou-Hallawa 2019-10-07 17:23:58 PDT 
*** Bug 201783 has been marked as a duplicate of this bug. ***
Comment 9 Yusuke Suzuki 2020-06-15 10:50:42 PDT 
Comment on attachment 380154 [details]
Patch for review

r- because applying the patch does not work. Looks like rebase is necessary.
Comment 10 Said Abou-Hallawa 2020-06-15 11:47:02 PDT 
Replacing SVGRect/SVGPoint/SVGMatrix by DOM equivalents was reverted in the specs: https://github.com/w3c/svgwg/issues/706. So this bug is now invalid and the attached patch should not be considered.