michael@0: // setVariable works on let-bindings.
michael@0: 
michael@0: var g = newGlobal();
michael@0: function test(code, val) {
michael@0:     g.eval("function f() { " + code + " }");
michael@0:     var dbg = new Debugger(g);
michael@0:     dbg.onDebuggerStatement = function (frame) {
michael@0:         frame.environment.setVariable("a", val);
michael@0:     };
michael@0:     assertEq(g.f(), val);
michael@0: }
michael@0: 
michael@0: test("let a = 1; debugger; return a;", "xyzzy");
michael@0: test("{ let a = 1; debugger; return a; }", "plugh");
michael@0: test("let (a = 1) { debugger; return a; }", "wcgr");