michael@0: // A closure's .environment keeps the lexical environment alive even if the closure is destroyed.
michael@0: 
michael@0: var N = 4;
michael@0: var g = newGlobal();
michael@0: g.eval("function add(a) { return function (b) { return eval('a + b'); }; }");
michael@0: var dbg = new Debugger;
michael@0: var gw = dbg.addDebuggee(g);
michael@0: var aw = gw.getOwnPropertyDescriptor("add").value;
michael@0: 
michael@0: // Create N closures and collect environments.
michael@0: var arr = [];
michael@0: for (var i = 0; i < N; i++)
michael@0:     arr[i] = aw.call(null, i).return.environment;
michael@0: 
michael@0: // Test that they work now.
michael@0: function check() {
michael@0:     for (var i = 0; i < N; i++) {
michael@0:         assertEq(arr[i].find("b"), null);
michael@0:         assertEq(arr[i].find("a"), arr[i]);
michael@0:     }
michael@0: }
michael@0: check();
michael@0: 
michael@0: // Test that they work after gc.
michael@0: gc();
michael@0: gc({});
michael@0: g.gc(g);
michael@0: check();