Method JSArrayProxy_pop

src/JSArrayProxy.cc:900–953

}

PyObject *JSArrayProxyMethodDefinitions::JSArrayProxy_pop(JSArrayProxy *self, PyObject *const *args, Py_ssize_t nargs) {
  Py_ssize_t index = -1;

  if (!_PyArg_CheckPositional("pop", nargs, 0, 1)) {
    return NULL;
  }

  if (nargs >= 1) {
    Py_ssize_t ival = -1;
    PyObject *iobj = PyNumber_Index(args[0]);
    if (iobj != NULL) {
      ival = PyLong_AsSsize_t(iobj);
      Py_DECREF(iobj);
    }
    if (ival == -1 && PyErr_Occurred()) {
      return NULL;
    }
    index = ival;
  }

  Py_ssize_t selfSize = JSArrayProxy_length(self);

  if (selfSize == 0) {
    /* Special-case most common failure cause */
    PyErr_SetString(PyExc_IndexError, "pop from empty list");
    return NULL;
  }

  if (index < 0) {
    index += selfSize;
  }

  if ((size_t)index >= (size_t)selfSize) {
    PyErr_SetString(PyExc_IndexError, "pop index out of range");
    return NULL;
  }

  JS::Rooted<JS::ValueArray<2>> jArgs(GLOBAL_CX);
  jArgs[0].setInt32(index);
  jArgs[1].setInt32(1);

  JS::RootedValue jReturnedArray(GLOBAL_CX);
  if (!JS_CallFunctionName(GLOBAL_CX, *(self->jsArray), "splice", jArgs, &jReturnedArray)) {
    PyErr_Format(PyExc_SystemError, "%s JSAPI call failed", JSArrayProxyType.tp_name);
    return NULL;
  }

  // need the value in the returned array, not the array itself
  JS::RootedObject rootedReturnedArray(GLOBAL_CX, jReturnedArray.toObjectOrNull());
  JS::RootedValue elementVal(GLOBAL_CX);
  JS_GetElement(GLOBAL_CX, rootedReturnedArray, 0, &elementVal);

  return pyTypeFactory(GLOBAL_CX, elementVal);
}

PyObject *JSArrayProxyMethodDefinitions::JSArrayProxy_remove(JSArrayProxy *self, PyObject *value) {
  Py_ssize_t selfSize = JSArrayProxy_length(self);