To get access to these functions, you first need to set a #define to opt-in to using these functions. There are two new API functions for operating on optree fragments, ensuring you can invoke the required parts of the optree-generation process that might otherwise not get invoked (e.g. # New API functions optimize_optree and finalize_optree Note that doing so may cause the regex engine to run longer and use more memory.
New API functions optimize_optree and finalize_optree.Forbidden control flow out of defer or finally now detected at compile-time.