Implement a type-safe DSL for a UI component in Kotlin
This tests your ability to design clean, hierarchical APIs using Kotlin's idiomatic features. A great answer defines model classes, then uses higher-order functions with lambdas with receiver to create a nested structure, and mentions `@DslMarker` for scope…
This question tests your ability to design clean, hierarchical APIs using Kotlin's idiomatic features like lambdas with receiver. A great answer outlines a three-step process: first, define data classes for the UI model (Form, TextField); second, create builder functions that accept lambdas with receiver (e.g., `fun form(init: Form.() -> Unit)`); and third, explain how `@DslMarker` ensures strict hierarchy. A common red flag is confusing these with regular lambdas and passing context explicitly, missing the DSL's elegance.
Read the original → kotlinlang.org
- #kotlin
- #dsl
- #api design
- #android
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