Implement new Concept Exercise: generic-types

[workingjubilee]

This issue describes how to implement the generic-types concept exercise for the rust 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

Often called simply "generics", or more explicitly generic type parameters, generics are important in writing clear and DRY code. The student has likely used a generic container by this point to solve one of the other exercises, and so should be introduced to them formally.

Learning objectives

• recognize the syntax for generics
• recognize the convention of using T for a type parameter

Out of scope

• minimize discussion of generics outside functions and structs
• so avoid generic lifetimes
• or generic traits

Concepts

• generics
• generic types

Prerequisites

This will require a conceptual understanding of

• complex types
• parameters
• type annotations

Resources to refer to

Hints

• Generic Types

After

• Generic Types

Representer

No changes required

Analyzer

No changes required

Implementing

See our implementation guide for guidance. In addition you may want to make use of the shell script while in the concept directory, with the argument of the exercise name, e.g. sh boil_exercise.sh generic-types

Help

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

[senekor]

After several failed attempts to create a high-quality syllabus, I believe any future attempts will have to do their own design work from scratch.