That's why I picked on Date. We need to distinguish formerly-internal potentially-public state from genuinely private state. WeakMap is (ironically) a great example of an abstraction whose internal state must remain private.
On Wed, Sep 25, 2013 at 7:22 AM, David Bruant <[email protected]> wrote: > Le 25/09/2013 15:49, Mark S. Miller a écrit : > > Why does Date need private state? AFAICT, it only needs uniquely named >> state. Why not do what we've done for many other bits of internal state >> that doesn't need to be private: just name it with a unique symbol? >> > yes (assuming unique symbols are a thing in the end. I think there were > threatened. unique string could work though) > > > This doesn't work for all internal state of course >> > yes. I think that in all this discussion, Date is a representant of > built-ins that have private state. WeakMap internals really can't be > exposed as unique properties for instance. > > David > -- Cheers, --MarkM
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