Kotlin Blueprints

Using DSL

DSL stands for domain-specific language. As the name indicates, it gives you the feeling as if you are writing code in a language using terminology particular to a given domain without being geeky, but then, this terminology is cleverly embedded as a syntax in a powerful language. If you are from the Groovy community, you must be aware of builders. Groovy builders allow you to define data in a semi-declarative way. It's a kind of mini-language of its own. Builders are considered good for generating XML and laying out UI components. The Kotlin DSL uses Lambdas a lot.

The DSL in Kotlin is a type-safe builder. It means we can detect compilation errors in IntelliJ's beautiful IDE. The type-check builders are much better than the dynamically ...