michael@0: // The arguments can escape from a function via a debugging hook.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger(g);
michael@0: 
michael@0: // capture arguments object and test function
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:   var args = frame.older.environment.parent.getVariable('arguments');
michael@0:   assertEq(args.missingArguments, true);
michael@0: };
michael@0: g.eval("function h() { debugger; }");
michael@0: g.eval("function f() { var x = 0; return function() { x++; h() } }");
michael@0: g.eval("f('ponies')()");