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Armin Rigo authored
rffi.get_nonmovingbuffer_ll(), because it is not safe: it needs to return the real llstr object on which it operated, and this is the object that needs to be passed to free_nonmovingbuffer_ll(). Otherwise, it's possible to come up with rpython code that would, say, convert a char to a string once for get() and once for free(), which defeats pinning.
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