Function PLyObject_FromJsonbContainer

contrib/jsonb_plpython/jsonb_plpython.c:140–261

* PLyObject_FromJsonbContainer * * Transform JsonbContainer to PyObject. */

 * Transform JsonbContainer to PyObject.
 */
static PyObject *
PLyObject_FromJsonbContainer(JsonbContainer *jsonb)
{
	JsonbIteratorToken r;
	JsonbValue	v;
	JsonbIterator *it;
	PyObject   *result;

	it = JsonbIteratorInit(jsonb);
	r = JsonbIteratorNext(&it, &v, true);

	switch (r)
	{
		case WJB_BEGIN_ARRAY:
			if (v.val.array.rawScalar)
			{
				JsonbValue	tmp;

				if ((r = JsonbIteratorNext(&it, &v, true)) != WJB_ELEM ||
					(r = JsonbIteratorNext(&it, &tmp, true)) != WJB_END_ARRAY ||
					(r = JsonbIteratorNext(&it, &tmp, true)) != WJB_DONE)
					elog(ERROR, "unexpected jsonb token: %d", r);

				result = PLyObject_FromJsonbValue(&v);
			}
			else
			{
				PyObject   *volatile elem = NULL;

				result = PyList_New(0);
				if (!result)
					return NULL;

				PG_TRY();
				{
					while ((r = JsonbIteratorNext(&it, &v, true)) != WJB_DONE)
					{
						if (r != WJB_ELEM)
							continue;

						elem = PLyObject_FromJsonbValue(&v);

						PyList_Append(result, elem);
						Py_XDECREF(elem);
						elem = NULL;
					}
				}
				PG_CATCH();
				{
					Py_XDECREF(elem);
					Py_XDECREF(result);
					PG_RE_THROW();
				}
				PG_END_TRY();
			}
			break;

		case WJB_BEGIN_OBJECT: