On Nov 28, 2009, at 12:09 AM, pattin.shieh wrote:
> Look at this:void Page::setMainFrame(PassRefPtr<Frame> mainFrame). Why use
> PassRefPtr?
Because the only call to Page::setMainFrame is inside the Frame constructor,
there is no performance benefit to taking a PassRefPtr.
But it’s arguably a good practice for a function that takes ownership of its
argument to take a PassRefPtr even in cases where there is no performance
benefit. It’s how the function states that it will keep a reference.
-- Darin
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