Proxy objects and collection
quae at daurnimator.com
Tue Sep 2 11:07:52 PDT 2014
I'd like to submit a request for some sort of Proxy collection
notification, so resources can be freed.
This will greatly help with language interoperability.
I'm the maintainer of lua.vm.js, which allows Lua code to run in the
I've managed to construct a simple and robust cross-language bridge, so
collector notifies me (via the __gc metamethod).
At this point, I drop the reference to the JS object, and the JS garbage
collector can collect it if needed.
not have the same ability;
Example use case:
A Lua script wishes to have a Lua function called on an interval:
`timerid = window:setInterval(function() window.console:log("ping") end)`
Later, it wishes to clear the timer:
This will stop the function from being called, but I have no way to notify
Lua that the function can be collected.
The closest thing maturing in this direction seems to be Revocable
However, these still require a manual function call to `revoke` on the
So, I'd like to see some sort of "trap" that is fired when a Proxy is
I propose that the trap *may* only be called at some *undefined* point
after the object is not strongly referenced.
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