On 07/15/2017 07:21 PM, Tim Blechmann wrote:
fwiw, to get this thread back to the main topic, i still fail to see
how
root_ptr deals with objects which are reachable from multiple roots,
which have independent lifetime
Please provide an example.
i've posted some already
I'm working on the parser right now but I thought I proved my point with
the following code:
var temporary = 0;
var bar = function (object)
{
return 10;
};
var foo = function ()
{
var object;
var result = function() { return object; };
return function() { return bar( object ); };
};
for (var i = 0; i < 1000000; ++ i)
console_log((foo())(temporary));
after `foo` returns, you only have one root, as neither `result` nor
`object` will escape `foo` and `object` will only be referenced by the
closure returned by `foo`.
`result` is a perfect target for escape analysis. maybe even `object`.
you have read about escape analysis, right?
Yes I understand escape analysis and that's exactly why I had to add a
run-time stack.
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