"Values must be emitted before tables" if array of values follows array of tables

[VOsakosa]

When a list that is dumped inline is defined in a dict before a list of tables, dumping fails. This is duplicate of #45, which was already closed.

Minimal working example

>>>import rtoml
>>>rtoml.dumps({'bookmarks': [{'ch': 12.0}],'auto_download': ['ja']})
File .venv/lib/python3.11/site-packages/rtoml/__init__.py:49, in dumps(obj, pretty)
     46 else:
     47     serialize = _rtoml.serialize
---> 49 return serialize(obj)

TomlSerializationError: values must be emitted before tables

This does not occur if the order of the keys is switched:

>>>import rtoml
>>>print(rtoml.dumps({'auto_download': ['ja'],'bookmarks': [{'ch': 12.0}]}))
auto_download = ["ja"]

[[bookmarks]]
ch = 12.0

Taking care to define the items in the right order is for now a doable workaround.

rtoml Version: 0.9.0
Python Version: 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0]

[samuelcolvin]

thanks for reporting, happy to accept a PR to fix this if you can find a way.

[VOsakosa]

Well, basically one just has to update the sorting code in ser.rs. To correctly check if something is an Array of Tables, one in theory had to check if every item is a dict.

But as far as I know, rtoml does not serialize arrays containing both dicts and other values, so checking if the first element is a dict should be fine.

I will try, but this would be my very first PR.