To help engine customers catch issues early instead of getting unhandled exceptions / undefined behavior, we should consider validating parameters passed into public API functions / possibly some internal functions.

Validation:

• should run in the debug mode only to not impact performance
• could be specified outside of the function and code generated in debug mode to do validation
• ideally without having to add #ifdef
• unified approach with unified error reporting
• ideally should check parameter types, unexpected null / undefined parameters and similar

And likely some other validations - please add comments with ideas and suggestions on how this could be implemented.