Scala 3 (aka Dotty) Context functions

Recently I've watched an interesting presentation from Martin Odersky on Plain Functional Programming (opens in a new tab).

In his talk Martin introduced Context functions which let him achieve 2 things.

1. Pass context to functions without explicitly passing it through function's arguments
2. Make function signatures more descriptive - by introducing Possibly he gave the function ability to throw an error

I highly recommend the talk if you want to get familiar with the full reasoning behind Context functions. Also here's the link to docs about Context functions (opens in a new tab).

You can check out the sample code for Martin's presentation here (opens in a new tab). I have updated the code to the current Scala syntax.

Happy coding 🙂