Method JSArrayProxy_assign_key

src/JSArrayProxy.cc:266–415

}

int JSArrayProxyMethodDefinitions::JSArrayProxy_assign_key(JSArrayProxy *self, PyObject *key, PyObject *value)
{
  if (PyIndex_Check(key)) {
    Py_ssize_t index = PyNumber_AsSsize_t(key, PyExc_IndexError);
    if (index == -1 && PyErr_Occurred()) {
      return -1;
    }

    Py_ssize_t selfLength = JSArrayProxy_length(self);

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

    if ((size_t)index >= (size_t)selfLength) {
      PyErr_SetObject(PyExc_IndexError, PyUnicode_FromString("list assignment index out of range"));
      return -1;
    }

    JS::RootedId id(GLOBAL_CX);
    JS_IndexToId(GLOBAL_CX, index, &id);

    if (value) { // we are setting a value
      JS::RootedValue jValue(GLOBAL_CX, jsTypeFactory(GLOBAL_CX, value));
      JS_SetPropertyById(GLOBAL_CX, *(self->jsArray), id, jValue);
    } else { // we are deleting a value
      JS::ObjectOpResult ignoredResult;
      JS_DeletePropertyById(GLOBAL_CX, *(self->jsArray), id, ignoredResult);
    }

    return 0;
  }
  else if (PySlice_Check(key)) {
    Py_ssize_t start, stop, step, slicelength;

    if (PySlice_Unpack(key, &start, &stop, &step) < 0) {
      return -1;
    }

    Py_ssize_t selfSize = JSArrayProxy_length(self);

    slicelength = PySlice_AdjustIndices(selfSize, &start, &stop, step);

    if (step == 1) {
      return list_ass_slice(self, start, stop, value);
    }

    /* Make sure s[5:2] = [..] inserts at the right place:
       before 5, not before 2. */
    if ((step < 0 && start < stop) || (step > 0 && start > stop)) {
      stop = start;
    }

    if (value == NULL) {
      /* delete slice */
      size_t cur;
      Py_ssize_t i;