[Webkit-unassigned] [Bug 188799] WeakPtr breaks vtables when upcasting to base classes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188799

--- Comment #2 from Jer Noble <jer.noble at apple.com> ---
(In reply to Geoffrey Garen from comment #1)
> Do you mean it breaks cases where a derived object has a vtable and a base
> object lacks a vtable?

I didn't try that case. It occurs any time where reinterpret_cast<Base>(derived*) != static_cast<Base>(derived*); so any time you have a "inherit from abstract 'client' base class", you'll hit this.

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