Function makeNewPyMethod

src/PyListProxyHandler.cc:34–53

private util if function is a proxy for a python method, mutate it into a new python method bound to thisObject

// private util
// if function is a proxy for a python method, mutate it into a new python method bound to thisObject
static bool makeNewPyMethod(JSContext *cx, JS::MutableHandleValue function, JS::HandleObject thisObject) {
  if (!JS_IsNativeFunction(&(function.toObject()), callPyFunc)) {
    return true; // we don't need to mutate function if it is not a proxy for a python function
  }

  PyObject *method = (PyObject *)js::GetFunctionNativeReserved(&(function.toObject()), 0).toPrivate();
  if (!PyMethod_Check(method)) {
    PyErr_Format(PyExc_TypeError, "unbound python functions do not have a 'self' to bind");
    return false;
  }

  PyObject *func = PyMethod_Function(method);
  JS::RootedValue thisValue(cx);
  thisValue.setObject(*thisObject);
  PyObject *newSelf = pyTypeFactory(cx, thisValue);
  function.set(jsTypeFactory(cx, PyMethod_New(func, newSelf)));
  Py_DECREF(newSelf);

  return true;
}

static bool array_reverse(JSContext *cx, unsigned argc, JS::Value *vp) {
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);