Nullability in C# 8.0

on YouTube ↗59m

" summary

C# 8 adds nullable reference types as annotations so existing nonnullable types become the default, using the ? operator and a lexical nullable enable directive that can be applied per file. The compiler emits warnings (Roslyn saw ~3,500–4,000 initially) and uses flow analysis plus new attributes (DoesNotReturn, NotNullWhen, etc.) to learn common patterns. Incremental adoption strategies and SDK annotations reduce churn; the feature ships and finds real bugs while keeping runtime behavior unchanged.

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" chapters (18)

1. 0:00Start
2. 0:16Jared Parsons
3. 1:25BILLION DOLLAR MISTAKE
4. 2:03C# AND NULL REFERENCES
5. 2:48CREATING VS. EXTENDING
6. 6:23WHAT ABOUT AN API SOLUTION?
7. 7:50COMPONENTS FOR SUCCESS
8. 9:10LOTS OF C# CODE TO ANNOTATE
9. 10:17CANT ENABLE IN ONE CHANGE
10. 12:22NET HAS A BROAD ECOSYSTEM
11. 14:29PRINCIPLES
12. 41:11REVIEW
13. 41:47NET CORE 3.0
14. 42:51NET AND NULLABILITY GOING FORWARD
15. 43:57RECOMMENDATION FOR LIBRARY AUTHORS
16. 44:43ADOPTION STRATEGIES
17. 47:16ADOPTION EXAMPLES
18. 47:27MORE RESOURCES (2)

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