This point is important enough that I'm resending as the start of a new thread.
On Wed, Jul 31, 2013 at 7:50 AM, Mark S. Miller <[email protected]> wrote: > > In thinking about this, I become ever more puzzled about the versioning > and inter-realm problems for user-defined unique symbols -- I think it may > be a train wreck. Scenario: Library W version 1.1 defines and uses a unique > symbol @foo which is loaded into realm A. Library W version 1.2 purposely > intends to continue to define and use the "same" unique symbol @foo, so > that W1.2 code can successfully handle instances of W1.1 code. Library W1.2 > is loaded into realm B. The two realms come into contact, and objects from > the two W's come into contact. *How did they both coordinate to define > and use the same @foo symbol?* > -- Cheers, --MarkM
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