Language Design in the Real World
Real programming languages are living things, changing and evolving. As with any production code, most of their designer’s time is spent on bug fixing and small improvements, rather than on the radical new features. One of the unique things about Kotlin is that it has been evolving in the use-case and community-driven fashion for years, starting way before it went to the stable 1.0 release in 2016, even for some time before it went public in 2011. Language design in the real world is a maintenance of a complex system and it runs into novel research questions with respect to type systems, feature interactions, usability, real-life code patterns in big code, etc.