michael@0: // If frame.onStep returns {return:val}, the frame returns.
michael@0: 
michael@0: var g = newGlobal();
michael@0: g.eval("function f(x) {\n" +
michael@0:        "    var a = x * x;\n" +
michael@0:        "    return a;\n" +
michael@0:        "}\n");
michael@0: 
michael@0: var dbg = Debugger(g);
michael@0: dbg.onEnterFrame = function (frame) {
michael@0:     frame.onStep = function () { return {return: "pass"}; };
michael@0: };
michael@0: 
michael@0: assertEq(g.f(4), "pass");