[Webkit-unassigned] [Bug 251057] New: AX: Use stronger typing of AccessibilityObject in AXObjectCache, AXIsolatedObject, and AXIsolatedTree

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251057

            Bug ID: 251057
           Summary: AX: Use stronger typing of AccessibilityObject in
                    AXObjectCache, AXIsolatedObject, and AXIsolatedTree
           Product: WebKit
           Version: Other
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tyler_w at apple.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

We have a bunch of places where we pass an AXCoreObject and immediately ASSERT(is<AccessibilityObject>(object)). We should just use stronger types, which avoids asserts and casting, and possibly helps the compiler perform de-virtualization optimizations.

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