[cap-talk] Lua, Javascript, and the Object Capability Model

[Tony Finch]

On Mon, 27 Jul 2009, Matej Kosik wrote:
>
> Suppose that you have two separate confined subsystems and one has
> access to a function defined in another one. The following two questions
> might be silling but I would like to ask anyway:
>
> (1) Can the first subsystem pass a reference to its private object to
> another subsystem as a parameter to a function call?
>
> (2) Can the second subsystem return a reference to its private object to
> the first subsystem as a return value?

Yes, in both cases, if the private object is implementedas a table.

You can also implement objects in Lua as closures, in which case the
answers are no, in both cases.

Tony.
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