| // Observably different visits to the same with-statement produce distinct Environments. |
| |
| var g = newGlobal(); |
| g.eval("function f(a, obj) { with (obj) return function () { return a; }; }"); |
| var dbg = Debugger(g); |
| var hits = 0; |
| dbg.onDebuggerStatement = function (frame) { |
| // Even though the two visits to the with-statement have the same target |
| // object, Math, the environments are observably different. |
| var f1 = frame.eval("f(1, Math);").return; |
| var f2 = frame.eval("f(2, Math);").return; |
| assertEq(f1.environment !== f2.environment, true); |
| assertEq(f1.object, f2.object); |
| assertEq(f1.call().return, 1); |
| assertEq(f2.call().return, 2); |
| hits++; |
| }; |
| g.eval("debugger;"); |
| assertEq(hits, 1); |