Building a DSL… in Kotlin!
summary
Kotlin plus KΛTEGORY builds a real DSL by modeling operations as a sealed class algebra lifted into a free abstraction, then interpreting that AST into runtimes. The repo implements a UI Automator–gesture generation DSL used for performance and UI flow tests, yields stack‑safe execution, and ships two interpreters: a validated NonEmptyList collector and a fail‑fast interpreter. The API adds syntactic sugar (operator +) and plans code generation to remove repetitive boilerplate.
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chapters (5)
- 0:00Introduction
- 2:52Key concepts of DSLs
- 10:38Example DSL implementation
- 18:04Steps to build a DSL
- 29:38Takeaways and conclusion
