[v3] Implement new Concept Exercise: basics

[dector]

This issue describes how to implement the basics concept exercise for the Kotlin track.

Getting started

Please please please read the docs before starting. Posting PRs without reading these docs will be a lot more frustrating for you during the review cycle, and exhaust Exercism's maintainers' time. So, before diving into the implementation, please read up on the following documents:

• The features of v3.
• Rationale for v3.
• What are concept exercise and how they are structured?

Please also watch the following video:

• The Anatomy of a Concept Exercise.

Goal

This exercise should teach bare minimum to help students understand Kotlin programs.

Learning objectives

• Know what a variable is.
• Know how to define a variable.
• Know the difference between immutable and mutable variable.
• Know how to update a variable.
• Know how to define a method.
• Know how to return a value from a method.
• Know how to call a method.
• Know about basic types: Int, Unit.
• Know how to define single and multiline comments.

Out of scope

• More advanced data types: String, Float/Double/Number, Nothing etc.
• Calling function with named parameters.
• Inline functions.
• Classes/Objects.
• Packages

Concepts

• basics: know what a variable is; know how to define a variable; know the difference between immutable and mutable variable; know how to update a variable; know how to define a method; know how to return a value from a method; know how to call a method; know that methods must be defined in classes; know about basic types: Int, Unit; know how to define single and multiline comments.

Prerequisites

none

Resources to refer to

Kotlin docs

Representer

Analyzer

Implementing

Help

If you have any questions while implementing the exercise, please post the questions as comments in this issue.