Debt

Similarly to Chant that covers up imperfect fragments with comments in natural language, there could be pieces missing entirely from the grammar and replaced with comments. If the comments admit clearly what is missing, use searchable tags like “TODO” or “FIXME” and are intended to use as a backlog.

Related smells: Chant

Reference

Mats Stijlaart and Vadim Zaytsev. 2017. Towards a taxonomy of grammar smells. In Proceedings of the 10th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2017). ACM, New York, NY, USA, 43-54.