[Webkit-unassigned] [Bug 103772] New: Teach OwnPtr and RefPtr to understand Arena'd objects

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=103772

           Summary: Teach OwnPtr and RefPtr to understand Arena'd objects
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric at webkit.org
                CC: mjs at apple.com, abarth at webkit.org,
                    jchaffraix at webkit.org, inferno at chromium.org


Teach OwnPtr and RefPtr to understand Arena'd objects

I believe it should be possible with template-specializations for OwnPtr<RenderObject>?

RenderObject's always have a node (even if that node is the Document), so node()->document()->arena() should always work for retrieving the arena.

This would allow deployment of OwnPtr/RefPtr throughout the rendering tree and should make the code cleaner and the lifetimes of many objects easier to follow.

(If such c++ template-foolery is not possible, please feel encouraged to correct me.)

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