Method JSObjectKeysProxy_isDisjoint

src/JSObjectKeysProxy.cc:318–380

}

PyObject *JSObjectKeysProxyMethodDefinitions::JSObjectKeysProxy_isDisjoint(JSObjectKeysProxy *self, PyObject *other) {
  PyObject *it;
  PyObject *item = NULL;

  Py_ssize_t selfLen = JSObjectKeysProxyMethodDefinitions::JSObjectKeysProxy_length(self);

  if ((PyObject *)self == other) {
    if (selfLen == 0) {
      Py_RETURN_TRUE;
    }
    else {
      Py_RETURN_FALSE;
    }
  }

  /* Iterate over the shorter object (only if other is a set,
   * because PySequence_Contains may be expensive otherwise): */
  if (PyAnySet_Check(other) || PyDictViewSet_Check(other)) {
    Py_ssize_t len_self = selfLen;
    Py_ssize_t len_other = PyObject_Size(other);
    if (len_other == -1) {
      return NULL;
    }

    if ((len_other > len_self)) {
      PyObject *tmp = other;
      other = (PyObject *)self;
      self = (JSObjectKeysProxy *)tmp;
    }
  }

  it = PyObject_GetIter(other);
  if (it == NULL) {
    return NULL;
  }

  while ((item = PyIter_Next(it)) != NULL) {
    int contains;
    if (PyObject_TypeCheck(self, &JSObjectKeysProxyType)) {
      contains = JSObjectKeysProxyMethodDefinitions::JSObjectKeysProxy_contains(self, item);
    }
    else {
      contains = PySequence_Contains((PyObject *)self, item);
    }
    Py_DECREF(item);
    if (contains == -1) {
      Py_DECREF(it);
      return NULL;
    }

    if (contains) {
      Py_DECREF(it);
      Py_RETURN_FALSE;
    }
  }

  Py_DECREF(it);
  if (PyErr_Occurred()) {