michael@0: // Debugger.Frame preserves Ion frame identity
michael@0: 
michael@0: load(libdir + "jitopts.js");
michael@0: 
michael@0: if (!jitTogglesMatch(Opts_Ion2NoParallelCompilation))
michael@0:   quit();
michael@0: 
michael@0: withJitOptions(Opts_Ion2NoParallelCompilation, function () {
michael@0:   var g = newGlobal();
michael@0:   var dbg1 = new Debugger;
michael@0:   var dbg2 = new Debugger;
michael@0: 
michael@0:   g.toggle = function toggle(x, d) {
michael@0:     if (d) {
michael@0:       dbg1.addDebuggee(g);
michael@0:       dbg2.addDebuggee(g);
michael@0:       var frame1 = dbg1.getNewestFrame();
michael@0:       assertEq(frame1.environment.getVariable("x"), x);
michael@0:       assertEq(frame1.implementation, "ion");
michael@0:       frame1.environment.setVariable("x", "not 42");
michael@0:       assertEq(dbg2.getNewestFrame().environment.getVariable("x"), "not 42");
michael@0:     }
michael@0:   };
michael@0: 
michael@0:   g.eval("" + function f(x, d) { toggle(x, d); });
michael@0: 
michael@0:   g.eval("(" + function test() {
michael@0:     for (var i = 0; i < 5; i++)
michael@0:       f(42, false);
michael@0:     f(42, true);
michael@0:   } + ")();");
michael@0: });