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exercism
Implement new Concept Exercise: unit-structs
This issue describes how to implement the unit-structs 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:
Please also watch the following video:
Goal
The goal is to teach the student what unit structs are and how one can use them. You'll also see them referred to as zero-width structs.
Learning objectives
- know the unit struct type
- know possible uses
Out of scope
- tuple structs
- structs
Concepts
- unit-structs
Prerequisites
- tuple structs
- structs
Resources to refer to
Hints
- https://doc.rust-lang.org/std/primitive.unit.html
After
- https://doc.rust-lang.org/std/primitive.unit.html
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 arg loops, e.g. sh boil_exercise.sh vec
Help
If you have any questions while implementing the exercise, please post the questions as comments in this issue.
Are unit structs worth teaching specifically? I can think of many many things that would be more interesting/useful. If anything I might throw it in with PhantomData.
@gilescope great question. Curious, any topics come to mind? I'm with you though. In the less frequent Rust programming I do, I don't often use unit structs.
We originally intended to chart out a slew of basic concepts for the V3 track. As we develop the actual concept exercises some appear well-suited or not. This will be a good topic to cover in some fashion, but perhaps not prioritized for the top 20 issues we'll want for launch.
