Strict mode

[kazhuravlev]

Note: This issue is planned for the next major release, because these changes will break backward compatibility.

When the generator is working - it can produce several warnings about some issues. See warnings in the codebase for examples.

When done, the generator will throw errors instead of warnings. This behavior can be muted by flags like -ignore-errors, when possible.

You can find some context of this issue in this message