[Webkit-unassigned] [Bug 150162] New: Implement iterator for traversing composed ancestors

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150162

            Bug ID: 150162
           Summary: Implement iterator for traversing composed ancestors
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: koivisto at iki.fi

The existing general purpose iterator can traverse parent chain but not efficiently (since it builds stack). Add a separate stackless iterator for ancestor chain traversal.

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