feat: adding warnings during compilation

[SuperFola]

feat(warnings)

Description

Adding warnings during compilation.

Checklist

• [x] I have read the Contributor guide
• [x] My code follows the style guidelines of this project
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have updated the documentation if needed
• [ ] I have added tests that prove my fix/feature is working
• [x] New and existing tests pass locally with my changes

[SuperFola]

Maybe we'll need a way to disable the warnings, through CLI options?