On 2/7/2012 3:24 PM, Niko Matsakis wrote:

I would appreciate feedback. I am pretty sure that the idea is sound,
but the problem is subtle and I may be missing something, so that kind
of feedback would be particularly helpful! Also, I would like to know
what else alias analysis is used for besides Dan's bug (hopefully those
remaining uses can be addressed via regions).

Hm. I am confused at the description of the "hole" in the type system. I was under the impression that this was the distinction between immutable values and immutably-rooted values (those contained within a path-of-immutable-references). Am I misunderstanding?

-Graydon


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