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weak references in node.js

how to build

# installs node-weakref system wide
node-waf configure build install

how it works

weakref = require('weakref');

var obj = weakref.weaken({val:42});
console.error(obj); // "{ val: 42 }"
// time passes, the garbage collector runs...
console.error(obj); // "{}"

more info

This is a proof of concept for node.js issue 631. Check the link for details and discussion.