michael@0: // Debuggers with enabled hooks should not be GC'd even if they are otherwise
michael@0: // unreachable.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var actual = 0;
michael@0: var expected = 0;
michael@0: 
michael@0: function f() {
michael@0:     for (var i = 0; i < 20; i++) {
michael@0:         var dbg = new Debugger(g);
michael@0:         dbg.num = i;
michael@0:         dbg.onDebuggerStatement = function (stack) { actual += this.num; };
michael@0:         expected += i;
michael@0:     }
michael@0: }
michael@0: 
michael@0: f();
michael@0: gc(); gc(); gc();
michael@0: g.eval("debugger;");
michael@0: assertEq(actual, expected);