L11: Advanced Generics and Variance

Lesson in Preparation (WIP)

This lesson is currently undergoing pedagogical drafting and development. It will soon be available with detailed visual diagrams, in-depth explanations, and its corresponding milestone in the AI Chat CLI incremental lab.

What will you learn in this lesson?

In this lesson we will explore:

• Deep Theory: Generic classes and functions <T>, upper bounds (T : Any), Declaration-site variance (out / Covariance and in / Contravariance), Star projections (*), and reified type parameters via inline functions.
• Under the Hood: JVM Type Erasure and how Kotlin circumvents this restriction through bytecode inlining.
• Incremental Lab (AI Chat CLI): Authoring a strongly-typed Result<T> sealed wrapper and generic response adapters to process AI completions.

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