// setVariable cannot modify the binding for a FunctionExpression's name. load(libdir + "asserts.js"); var g = newGlobal(); var dbg = Debugger(g); var hits = 0; dbg.onDebuggerStatement = function (frame) { var env = frame.environment.find("f"); assertEq(env.getVariable("f"), frame.callee); assertThrowsInstanceOf(function () { env.setVariable("f", 0) }, TypeError); assertThrowsInstanceOf(function () { env.setVariable("f", frame.callee) }, TypeError); hits++; }; g.eval("(function f() { debugger; })();"); assertEq(hits, 1);