michael@0: // Q: But who shall debug the debuggers?  A: jimb
michael@0: 
michael@0: var log = '';
michael@0: 
michael@0: function addDebug(g, id) {
michael@0:     var debuggerGlobal = newGlobal();
michael@0:     debuggerGlobal.debuggee = g;
michael@0:     debuggerGlobal.id = id;
michael@0:     debuggerGlobal.print = function (s) { log += s; };
michael@0:     debuggerGlobal.eval(
michael@0:         'var dbg = new Debugger(debuggee);\n' +
michael@0:         'dbg.onDebuggerStatement = function () { print(id); debugger; print(id); };\n');
michael@0:     return debuggerGlobal;
michael@0: }
michael@0: 
michael@0: var base = newGlobal();
michael@0: var top = base;
michael@0: for (var i = 0; i < 8; i++)  // why have 2 debuggers when you can have 8
michael@0:     top = addDebug(top, i);
michael@0: base.eval("debugger;");
michael@0: assertEq(log, '0123456776543210');