On Fri, Aug 30, 2013 at 12:54 AM, Jonathan S. Shapiro <[email protected]>wrote:
> > Yes. That's a big issue. Shifting the fixed-size arrays to the bottom is a > useful special case, but it is defeated if further child classes are > derived. > > _______________________________________________ > string is sealed for 2 reason 1. Its variable sized and subtypes would create issues with the allocation hack 2. It is treated specially by the GC as discussed and a subtype could have ref that would invalidate that. No reason we couldnt say variable sized types need to be sealed.. Ben
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