Merge branch 'master' into exercise_ans
This commit is contained in:
ZhiHanZ
GitHub
commit
f0f9ea9915
.all-contributorsrcCargo.lockREADME.mdinfo.tomlinstall.sh
exercises
clippy
conversions
error_handling
if
macros
standard_library_types
structs
variables
465
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465
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2
Cargo.lock
generated
2
Cargo.lock
generated
|
|
@ -592,7 +592,7 @@ dependencies = [
|
|||
|
||||
[[package]]
|
||||
name = "rustlings"
|
||||
version = "2.2.1"
|
||||
version = "3.0.0"
|
||||
dependencies = [
|
||||
"assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
|
|
|
|||
80
README.md
80
README.md
|
|
@ -1,4 +1,7 @@
|
|||
|
||||
<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
|
||||
[](#contributors-)
|
||||
<!-- ALL-CONTRIBUTORS-BADGE:END -->
|
||||
|
||||
# rustlings 🦀❤️ [](https://buildkite.com/mokou/rustlings)
|
||||
|
||||
|
|
@ -15,8 +18,6 @@ Alternatively, for a first-time Rust learner, there's several other resources:
|
|||
|
||||
_Note: If you're on MacOS, make sure you've installed Xcode and its developer tools by typing `xcode-select --install`._
|
||||
|
||||
_Note: If you have Xcode 10+ installed, you also need to install the package file found at `/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg`._
|
||||
|
||||
You will need to have Rust installed. You can get it by visiting https://rustup.rs. This'll also install Cargo, Rust's package/project manager.
|
||||
|
||||
## MacOS/Linux
|
||||
|
|
@ -122,7 +123,78 @@ If you are interested in improving or adding new ones, please feel free to contr
|
|||
|
||||
See [CONTRIBUTING.md](./CONTRIBUTING.md).
|
||||
|
||||
## Credits
|
||||
## Contributors ✨
|
||||
|
||||
`rustlings` was originally written by [Carol](https://github.com/carols10cents)!
|
||||
Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
|
||||
|
||||
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
|
||||
<!-- prettier-ignore-start -->
|
||||
<!-- markdownlint-disable -->
|
||||
<table>
|
||||
<tr>
|
||||
<td align="center"><a href="http://carol-nichols.com"><img src="https://avatars2.githubusercontent.com/u/193874?v=4" width="100px;" alt=""/><br /><sub><b>Carol (Nichols || Goulding)</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=carols10cents" title="Code">💻</a> <a href="#content-carols10cents" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://twitter.com/QuietMisdreavus"><img src="https://avatars2.githubusercontent.com/u/5217170?v=4" width="100px;" alt=""/><br /><sub><b>QuietMisdreavus</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=QuietMisdreavus" title="Code">💻</a> <a href="#content-QuietMisdreavus" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/robertlugg"><img src="https://avatars0.githubusercontent.com/u/6054540?v=4" width="100px;" alt=""/><br /><sub><b>Robert M Lugg</b></sub></a><br /><a href="#content-robertlugg" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://hynek.me/about/"><img src="https://avatars3.githubusercontent.com/u/41240?v=4" width="100px;" alt=""/><br /><sub><b>Hynek Schlawack</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=hynek" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://spacekookie.de"><img src="https://avatars0.githubusercontent.com/u/7669898?v=4" width="100px;" alt=""/><br /><sub><b>Katharina Fey</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=spacekookie" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/lukabavdaz"><img src="https://avatars0.githubusercontent.com/u/9624558?v=4" width="100px;" alt=""/><br /><sub><b>lukabavdaz</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=lukabavdaz" title="Code">💻</a> <a href="#content-lukabavdaz" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="http://vestera.as"><img src="https://avatars2.githubusercontent.com/u/4187449?v=4" width="100px;" alt=""/><br /><sub><b>Erik Vesteraas</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=evestera" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/Delet0r"><img src="https://avatars1.githubusercontent.com/u/23195618?v=4" width="100px;" alt=""/><br /><sub><b>delet0r</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=Delet0r" title="Code">💻</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="http://phinary.ca"><img src="https://avatars1.githubusercontent.com/u/10522375?v=4" width="100px;" alt=""/><br /><sub><b>Shaun Bennett</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=shaunbennett" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/abagshaw"><img src="https://avatars2.githubusercontent.com/u/8594541?v=4" width="100px;" alt=""/><br /><sub><b>Andrew Bagshaw</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=abagshaw" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://ai6ua.net/"><img src="https://avatars2.githubusercontent.com/u/175578?v=4" width="100px;" alt=""/><br /><sub><b>Kyle Isom</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=kisom" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/ColinPitrat"><img src="https://avatars3.githubusercontent.com/u/1541863?v=4" width="100px;" alt=""/><br /><sub><b>Colin Pitrat</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=ColinPitrat" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://zacanger.com"><img src="https://avatars3.githubusercontent.com/u/12520493?v=4" width="100px;" alt=""/><br /><sub><b>Zac Anger</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=zacanger" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/mgeier"><img src="https://avatars1.githubusercontent.com/u/705404?v=4" width="100px;" alt=""/><br /><sub><b>Matthias Geier</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=mgeier" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/cjpearce"><img src="https://avatars1.githubusercontent.com/u/3453268?v=4" width="100px;" alt=""/><br /><sub><b>Chris Pearce</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=cjpearce" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://yvan-sraka.github.io"><img src="https://avatars2.githubusercontent.com/u/705213?v=4" width="100px;" alt=""/><br /><sub><b>Yvan Sraka</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=yvan-sraka" title="Code">💻</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/dendi239"><img src="https://avatars3.githubusercontent.com/u/16478650?v=4" width="100px;" alt=""/><br /><sub><b>Denys Smirnov</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=dendi239" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/eddyp"><img src="https://avatars2.githubusercontent.com/u/123772?v=4" width="100px;" alt=""/><br /><sub><b>eddyp</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=eddyp" title="Code">💻</a></td>
|
||||
<td align="center"><a href="http://about.me/BrianKung"><img src="https://avatars1.githubusercontent.com/u/2836167?v=4" width="100px;" alt=""/><br /><sub><b>Brian Kung</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=briankung" title="Code">💻</a> <a href="#content-briankung" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://rcousineau.gitlab.io"><img src="https://avatars3.githubusercontent.com/u/281039?v=4" width="100px;" alt=""/><br /><sub><b>Russell</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=miller-time" title="Code">💻</a></td>
|
||||
<td align="center"><a href="http://danwilhelm.com"><img src="https://avatars3.githubusercontent.com/u/6137185?v=4" width="100px;" alt=""/><br /><sub><b>Dan Wilhelm</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=danwilhelm" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://github.com/Jesse-Cameron"><img src="https://avatars3.githubusercontent.com/u/3723654?v=4" width="100px;" alt=""/><br /><sub><b>Jesse</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=Jesse-Cameron" title="Code">💻</a> <a href="#content-Jesse-Cameron" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/MrFroop"><img src="https://avatars3.githubusercontent.com/u/196700?v=4" width="100px;" alt=""/><br /><sub><b>Fredrik Jambrén</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=MrFroop" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/petemcfarlane"><img src="https://avatars3.githubusercontent.com/u/3472717?v=4" width="100px;" alt=""/><br /><sub><b>Pete McFarlane</b></sub></a><br /><a href="#content-petemcfarlane" title="Content">🖋</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/nkanderson"><img src="https://avatars0.githubusercontent.com/u/4128825?v=4" width="100px;" alt=""/><br /><sub><b>nkanderson</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=nkanderson" title="Code">💻</a> <a href="#content-nkanderson" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/ajaxm"><img src="https://avatars0.githubusercontent.com/u/13360138?v=4" width="100px;" alt=""/><br /><sub><b>Ajax M</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=ajaxm" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://dylnuge.com"><img src="https://avatars2.githubusercontent.com/u/118624?v=4" width="100px;" alt=""/><br /><sub><b>Dylan Nugent</b></sub></a><br /><a href="#content-Dylnuge" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/vyaslav"><img src="https://avatars0.githubusercontent.com/u/1385427?v=4" width="100px;" alt=""/><br /><sub><b>vyaslav</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=vyaslav" title="Code">💻</a> <a href="#content-vyaslav" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://join.sfxd.org"><img src="https://avatars1.githubusercontent.com/u/17297466?v=4" width="100px;" alt=""/><br /><sub><b>George</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=gdoenlen" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/nyxtom"><img src="https://avatars2.githubusercontent.com/u/222763?v=4" width="100px;" alt=""/><br /><sub><b>Thomas Holloway</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=nyxtom" title="Code">💻</a> <a href="#content-nyxtom" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/workingjubilee"><img src="https://avatars1.githubusercontent.com/u/46493976?v=4" width="100px;" alt=""/><br /><sub><b>Jubilee</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=workingjubilee" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/WofWca"><img src="https://avatars1.githubusercontent.com/u/39462442?v=4" width="100px;" alt=""/><br /><sub><b>WofWca</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=WofWca" title="Code">💻</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/jrvidal"><img src="https://avatars0.githubusercontent.com/u/1636604?v=4" width="100px;" alt=""/><br /><sub><b>Roberto Vidal</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=jrvidal" title="Code">💻</a> <a href="https://github.com/fmoko/rustlings/commits?author=jrvidal" title="Documentation">📖</a> <a href="#ideas-jrvidal" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-jrvidal" title="Maintenance">🚧</a></td>
|
||||
<td align="center"><a href="https://github.com/jensim"><img src="https://avatars0.githubusercontent.com/u/3663856?v=4" width="100px;" alt=""/><br /><sub><b>Jens</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=jensim" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="http://rahatah.me/d"><img src="https://avatars3.githubusercontent.com/u/3174006?v=4" width="100px;" alt=""/><br /><sub><b>Rahat Ahmed</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=rahatarmanahmed" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://github.com/AbdouSeck"><img src="https://avatars2.githubusercontent.com/u/6490055?v=4" width="100px;" alt=""/><br /><sub><b>Abdou Seck</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=AbdouSeck" title="Code">💻</a> <a href="#content-AbdouSeck" title="Content">🖋</a> <a href="https://github.com/fmoko/rustlings/pulls?q=is%3Apr+reviewed-by%3AAbdouSeck" title="Reviewed Pull Requests">👀</a></td>
|
||||
<td align="center"><a href="https://codehearts.com"><img src="https://avatars0.githubusercontent.com/u/2885412?v=4" width="100px;" alt=""/><br /><sub><b>Katie</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=codehearts" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/Socratides"><img src="https://avatars3.githubusercontent.com/u/27732983?v=4" width="100px;" alt=""/><br /><sub><b>Socrates</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=Socratides" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://github.com/gnodarse"><img src="https://avatars3.githubusercontent.com/u/46761795?v=4" width="100px;" alt=""/><br /><sub><b>gnodarse</b></sub></a><br /><a href="#content-gnodarse" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://github.com/harrisonmetz"><img src="https://avatars1.githubusercontent.com/u/7883408?v=4" width="100px;" alt=""/><br /><sub><b>Harrison Metzger</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=harrisonmetz" title="Code">💻</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/TorbenJ"><img src="https://avatars2.githubusercontent.com/u/9077102?v=4" width="100px;" alt=""/><br /><sub><b>Torben Jonas</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=TorbenJ" title="Code">💻</a> <a href="#content-TorbenJ" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="http://paulbissex.com/"><img src="https://avatars0.githubusercontent.com/u/641?v=4" width="100px;" alt=""/><br /><sub><b>Paul Bissex</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=pbx" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://github.com/sjmann"><img src="https://avatars0.githubusercontent.com/u/6589896?v=4" width="100px;" alt=""/><br /><sub><b>Steven Mann</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=sjmann" title="Code">💻</a> <a href="#content-sjmann" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://smmdb.net/"><img src="https://avatars2.githubusercontent.com/u/5855071?v=4" width="100px;" alt=""/><br /><sub><b>Mario Reder</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=Tarnadas" title="Code">💻</a> <a href="#content-Tarnadas" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="https://keybase.io/skim"><img src="https://avatars0.githubusercontent.com/u/47347?v=4" width="100px;" alt=""/><br /><sub><b>skim</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=sl4m" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/sanjaykdragon"><img src="https://avatars1.githubusercontent.com/u/10261698?v=4" width="100px;" alt=""/><br /><sub><b>Sanjay K</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=sanjaykdragon" title="Code">💻</a> <a href="#content-sanjaykdragon" title="Content">🖋</a></td>
|
||||
<td align="center"><a href="http://www.rohanjain.in"><img src="https://avatars1.githubusercontent.com/u/343499?v=4" width="100px;" alt=""/><br /><sub><b>Rohan Jain</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=crodjer" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://www.saidaspen.se"><img src="https://avatars1.githubusercontent.com/u/7727687?v=4" width="100px;" alt=""/><br /><sub><b>Said Aspen</b></sub></a><br /><a href="https://github.com/fmoko/rustlings/commits?author=saidaspen" title="Code">💻</a> <a href="#content-saidaspen" title="Content">🖋</a></td>
|
||||
</tr>
|
||||
</table>
|
||||
|
||||
<!-- markdownlint-enable -->
|
||||
<!-- prettier-ignore-end -->
|
||||
<!-- ALL-CONTRIBUTORS-LIST:END -->
|
||||
|
||||
This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
|
||||
|
|
|
|||
|
|
@ -2,6 +2,8 @@
|
|||
// The Clippy tool is a collection of lints to analyze your code
|
||||
// so you can catch common mistakes and improve your Rust code.
|
||||
//
|
||||
// For these exercises the code will fail to compile when there are clippy warnings
|
||||
// check clippy's suggestions from the output to solve the exercise.
|
||||
// Execute `rustlings hint clippy1` for hints :)
|
||||
|
||||
// I AM NOT DONE
|
||||
|
|
|
|||
|
|
@ -29,9 +29,10 @@ impl Default for Person {
|
|||
// 1. If the length of the provided string is 0, then return the default of Person
|
||||
// 2. Split the given string on the commas present in it
|
||||
// 3. Extract the first element from the split operation and use it as the name
|
||||
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// 4. If the name is empty, then return the default of Person
|
||||
// 5. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// If while parsing the age, something goes wrong, then return the default of Person
|
||||
// Otherwise, then return an instantiated Person onject with the results
|
||||
// Otherwise, then return an instantiated Person object with the results
|
||||
impl From<&str> for Person {
|
||||
fn from(s: &str) -> Person {
|
||||
}
|
||||
|
|
@ -77,4 +78,39 @@ mod tests {
|
|||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_missing_comma_and_age() {
|
||||
let p: Person = Person::from("Mark");
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_missing_age() {
|
||||
let p: Person = Person::from("Mark,");
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_missing_name() {
|
||||
let p: Person = Person::from(",1");
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_missing_name_and_age() {
|
||||
let p: Person = Person::from(",");
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_missing_name_and_invalid_age() {
|
||||
let p: Person = Person::from(",one");
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 30);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -15,7 +15,8 @@ struct Person {
|
|||
// 1. If the length of the provided string is 0, then return an error
|
||||
// 2. Split the given string on the commas present in it
|
||||
// 3. Extract the first element from the split operation and use it as the name
|
||||
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// 4. If the name is empty, then return an error
|
||||
// 5. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// If while parsing the age, something goes wrong, then return an error
|
||||
// Otherwise, then return a Result of a Person object
|
||||
impl FromStr for Person {
|
||||
|
|
@ -39,11 +40,46 @@ mod tests {
|
|||
}
|
||||
#[test]
|
||||
fn good_input() {
|
||||
assert!("John,32".parse::<Person>().is_ok());
|
||||
let p = "John,32".parse::<Person>();
|
||||
assert!(p.is_ok());
|
||||
let p = p.unwrap();
|
||||
assert_eq!(p.name, "John");
|
||||
assert_eq!(p.age, 32);
|
||||
}
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn missing_age() {
|
||||
"John,".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn invalid_age() {
|
||||
"John,twenty".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn missing_comma_and_age() {
|
||||
"John".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn missing_name() {
|
||||
",1".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn missing_name_and_age() {
|
||||
",".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn missing_name_and_invalid_age() {
|
||||
",one".parse::<Person>().unwrap();
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -22,7 +22,8 @@ struct Person {
|
|||
// 1. If the length of the provided string is 0, then return an error
|
||||
// 2. Split the given string on the commas present in it
|
||||
// 3. Extract the first element from the split operation and use it as the name
|
||||
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// 4. If the name is empty, then return an error.
|
||||
// 5. Extract the other element from the split operation and parse it into a `usize` as the age
|
||||
// If while parsing the age, something goes wrong, then return an error
|
||||
// Otherwise, then return a Result of a Person object
|
||||
impl TryFrom<&str> for Person {
|
||||
|
|
@ -45,7 +46,7 @@ mod tests {
|
|||
use super::*;
|
||||
#[test]
|
||||
fn test_bad_convert() {
|
||||
// Test that John is returned when bad string is provided
|
||||
// Test that error is returned when bad string is provided
|
||||
let p = Person::try_from("");
|
||||
assert!(p.is_err());
|
||||
}
|
||||
|
|
@ -68,4 +69,34 @@ mod tests {
|
|||
fn test_panic_bad_age() {
|
||||
let p = Person::try_from("Mark,twenty").unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_missing_comma_and_age() {
|
||||
let _: Person = "Mark".try_into().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_missing_age() {
|
||||
let _: Person = "Mark,".try_into().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_missing_name() {
|
||||
let _ : Person = ",1".try_into().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_missing_name_and_age() {
|
||||
let _: Person = ",".try_into().unwrap();
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn test_missing_name_and_invalid_age() {
|
||||
let _: Person = ",one".try_into().unwrap();
|
||||
}
|
||||
}
|
||||
|
|
@ -99,15 +99,12 @@ enum CreationError {
|
|||
|
||||
impl fmt::Display for CreationError {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
f.write_str((self as &dyn error::Error).description())
|
||||
let description = match *self {
|
||||
CreationError::Negative => "Number is negative",
|
||||
CreationError::Zero => "Number is zero",
|
||||
};
|
||||
f.write_str(description)
|
||||
}
|
||||
}
|
||||
|
||||
impl error::Error for CreationError {
|
||||
fn description(&self) -> &str {
|
||||
match *self {
|
||||
CreationError::Negative => "Negative",
|
||||
CreationError::Zero => "Zero",
|
||||
}
|
||||
}
|
||||
}
|
||||
impl error::Error for CreationError {}
|
||||
|
|
|
|||
|
|
@ -1,31 +0,0 @@
|
|||
// option1.rs
|
||||
// This example panics because the second time it calls `pop`, the `vec`
|
||||
// is empty, so `pop` returns `None`, and `unwrap` panics if it's called
|
||||
// on `None`. Handle this in a more graceful way than calling `unwrap`!
|
||||
// Execute `rustlings hint option1` for hints :)
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
pub fn pop_too_much() -> bool {
|
||||
let mut list = vec![3];
|
||||
|
||||
let last = list.pop().unwrap();
|
||||
println!("The last item in the list is {:?}", last);
|
||||
|
||||
let second_to_last = list.pop().unwrap();
|
||||
println!(
|
||||
"The second-to-last item in the list is {:?}",
|
||||
second_to_last
|
||||
);
|
||||
true
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn should_not_panic() {
|
||||
assert!(pop_too_much());
|
||||
}
|
||||
}
|
||||
36
exercises/if/if2.rs
Normal file
36
exercises/if/if2.rs
Normal file
|
|
@ -0,0 +1,36 @@
|
|||
// if2.rs
|
||||
|
||||
// Step 1: Make me compile!
|
||||
// Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
|
||||
// Execute the command `rustlings hint if2` if you want a hint :)
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
pub fn fizz_if_foo(fizzish: &str) -> &str {
|
||||
if fizzish == "fizz" {
|
||||
"foo"
|
||||
} else {
|
||||
1
|
||||
}
|
||||
}
|
||||
|
||||
// No test changes needed!
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn foo_for_fizz() {
|
||||
assert_eq!(fizz_if_foo("fizz"), "foo")
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn bar_for_fuzz() {
|
||||
assert_eq!(fizz_if_foo("fuzz"), "bar")
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn default_to_baz() {
|
||||
assert_eq!(fizz_if_foo("literally anything"), "baz")
|
||||
}
|
||||
}
|
||||
|
|
@ -2,7 +2,7 @@
|
|||
|
||||
Rust's macro system is very powerful, but also kind of difficult to wrap your
|
||||
head around. We're not going to teach you how to write your own fully-featured
|
||||
modules, instead we'll show you how to use and create them.
|
||||
macros. Instead, we'll show you how to use and create them.
|
||||
|
||||
#### Book Sections
|
||||
|
||||
|
|
|
|||
|
|
@ -1,8 +1,10 @@
|
|||
// iterators2.rs
|
||||
// In this module, you'll learn some of unique advantages that iterators can offer
|
||||
// Step 1. Complete the `capitalize_first` function to pass the first two cases
|
||||
// Step 2. Apply the `capitalize_first` function to a vector of strings, ensuring that it returns a vector of strings as well
|
||||
// Step 3. Apply the `capitalize_first` function again to a list, but try and ensure it returns a single string
|
||||
// In this module, you'll learn some of unique advantages that iterators can offer.
|
||||
// Step 1. Complete the `capitalize_first` function to pass the first two cases.
|
||||
// Step 2. Apply the `capitalize_first` function to a vector of strings.
|
||||
// Ensure that it returns a vector of strings as well.
|
||||
// Step 3. Apply the `capitalize_first` function again to a list.
|
||||
// Try to ensure it returns a single string.
|
||||
// As always, there are hints if you execute `rustlings hint iterators2`!
|
||||
|
||||
// I AM NOT DONE
|
||||
|
|
|
|||
|
|
@ -3,13 +3,13 @@
|
|||
// I AM NOT DONE
|
||||
|
||||
pub fn factorial(num: u64) -> u64 {
|
||||
// Complete this function to return factorial of num
|
||||
// Complete this function to return the factorial of num
|
||||
// Do not use:
|
||||
// - return
|
||||
// For extra fun don't use:
|
||||
// Try not to use:
|
||||
// - imperative style loops (for, while)
|
||||
// - additional variables
|
||||
// For the most fun don't use:
|
||||
// For an extra challenge, don't use:
|
||||
// - recursion
|
||||
// Execute `rustlings hint iterators4` for hints.
|
||||
}
|
||||
|
|
|
|||
67
exercises/structs/structs3.rs
Normal file
67
exercises/structs/structs3.rs
Normal file
|
|
@ -0,0 +1,67 @@
|
|||
// structs3.rs
|
||||
// Structs contain more than simply some data, they can also have logic, in this
|
||||
// exercise we have defined the Package struct and we want to test some logic attached to it,
|
||||
// make the code compile and the tests pass! If you have issues execute `rustlings hint structs3`
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Package {
|
||||
from: String,
|
||||
to: String,
|
||||
weight: f32
|
||||
}
|
||||
|
||||
impl Package {
|
||||
fn new(from: String, to: String, weight: f32) -> Package {
|
||||
if weight <= 0.0 {
|
||||
// Something goes here...
|
||||
} else {
|
||||
return Package {from, to, weight};
|
||||
}
|
||||
}
|
||||
|
||||
fn is_international(&self) -> ??? {
|
||||
// Something goes here...
|
||||
}
|
||||
|
||||
fn get_fees(&self, cost_per_kg: f32) -> ??? {
|
||||
// Something goes here...
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn fail_creating_weightless_package() {
|
||||
let country_from = String::from("Spain");
|
||||
let country_to = String::from("Austria");
|
||||
|
||||
Package::new(country_from, country_to, -2.21);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn create_international_package() {
|
||||
let country_from = String::from("Spain");
|
||||
let country_to = String::from("Russia");
|
||||
|
||||
let package = Package::new(country_from, country_to, 1.2);
|
||||
|
||||
assert!(package.is_international());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn calculate_transport_fees() {
|
||||
let country_from = String::from("Spain");
|
||||
let country_to = String::from("Spain");
|
||||
|
||||
let country_fee = ???;
|
||||
|
||||
let package = Package::new(country_from, country_to, 22.0);
|
||||
|
||||
assert_eq!(package.get_fees(country_fee), 176.0);
|
||||
}
|
||||
}
|
||||
9
exercises/variables/variables6.rs
Normal file
9
exercises/variables/variables6.rs
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
// variables5.rs
|
||||
// Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
const NUMBER = 3;
|
||||
fn main() {
|
||||
println!("Number {}", NUMBER);
|
||||
}
|
||||
63
info.toml
63
info.toml
|
|
@ -52,9 +52,25 @@ because we want to assign a different typed value to an existing variable. Somet
|
|||
you may also like to reuse existing variable names because you are just converting
|
||||
values to different types like in this exercise.
|
||||
Fortunately Rust has a powerful solution to this problem: 'Shadowing'!
|
||||
You can read more about 'Shadowing' in the book's section 'Variables and Mutability'.
|
||||
You can read more about 'Shadowing' in the book's section 'Variables and Mutability':
|
||||
https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html#shadowing
|
||||
Try to solve this exercise afterwards using this technique."""
|
||||
|
||||
[[exercises]]
|
||||
name = "variables6"
|
||||
path = "exercises/variables/variables6.rs"
|
||||
mode = "compile"
|
||||
hint = """
|
||||
We know about variables and mutability, but there is another important type of
|
||||
variable available; constants.
|
||||
Constants are always immutable and they are declared with keyword 'const' rather
|
||||
then keyword 'let'.
|
||||
Constants types must also always be annotated.
|
||||
|
||||
Read more about constants under 'Differences Between Variables and Constants' in the book's section 'Variables and Mutability':
|
||||
https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html
|
||||
"""
|
||||
|
||||
# IF
|
||||
|
||||
[[exercises]]
|
||||
|
|
@ -71,6 +87,15 @@ Remember in Rust that:
|
|||
- `if`/`else` conditionals are expressions
|
||||
- Each condition is followed by a `{}` block."""
|
||||
|
||||
[[exercises]]
|
||||
name = "if2"
|
||||
path = "exercises/if/if2.rs"
|
||||
mode = "test"
|
||||
hint = """
|
||||
For that first compiler error, it's important in Rust that each conditional
|
||||
block return the same type! To get the tests passing, you will need a couple
|
||||
conditions checking different input values."""
|
||||
|
||||
# FUNCTIONS
|
||||
|
||||
[[exercises]]
|
||||
|
|
@ -199,13 +224,35 @@ Now you have another tool in your toolbox!"""
|
|||
name = "structs1"
|
||||
path = "exercises/structs/structs1.rs"
|
||||
mode = "test"
|
||||
hint = "No hints this time ;)"
|
||||
hint = """
|
||||
Rust has more than one type of struct. Both variants are used to package related data together.
|
||||
On the one hand, there are normal, or classic, structs. These are named collections of related data stored in fields.
|
||||
The other variant is tuple structs. Basically just named tuples.
|
||||
In this exercise you need to implement one of each kind.
|
||||
|
||||
Read more about structs in The Book: https://doc.rust-lang.org/stable/book/ch05-00-structs.html"""
|
||||
|
||||
[[exercises]]
|
||||
name = "structs2"
|
||||
path = "exercises/structs/structs2.rs"
|
||||
mode = "test"
|
||||
hint = "No hints this time ;)"
|
||||
hint = """
|
||||
Creating instances of structs is easy, all you need to do is assign some values to its fields.
|
||||
There is however some shortcuts that can be taken when instantiating structs.
|
||||
Have a look in The Book, to find out more: https://doc.rust-lang.org/stable/book/ch05-01-defining-structs.html#creating-instances-from-other-instances-with-struct-update-syntax"""
|
||||
|
||||
[[exercises]]
|
||||
name = "structs3"
|
||||
path = "exercises/structs/structs3.rs"
|
||||
mode = "test"
|
||||
hint = """
|
||||
The new method needs to panic if the weight is physically impossible :), how do we do that in Rust?
|
||||
|
||||
For is_international: What makes a package international? Seems related to the places it goes through right?
|
||||
|
||||
For calculate_transport_fees: Bigger is more expensive usually, we don't have size, but something may fit the bill here :)
|
||||
|
||||
Have a look in The Book, to find out more about method implementations: https://doc.rust-lang.org/book/ch05-03-method-syntax.html"""
|
||||
|
||||
# STRINGS
|
||||
|
||||
|
|
@ -476,7 +523,7 @@ mode = "test"
|
|||
hint = """
|
||||
First hint: To figure out what type should go where the ??? is, take a look
|
||||
at the test helper function `test_with_str`, since it returns whatever
|
||||
`read_and_validate` returns and`test_with_str` has its signature fully
|
||||
`read_and_validate` returns and `test_with_str` has its signature fully
|
||||
specified.
|
||||
|
||||
|
||||
|
|
@ -615,10 +662,10 @@ name = "iterators4"
|
|||
path = "exercises/standard_library_types/iterators4.rs"
|
||||
mode = "test"
|
||||
hint = """
|
||||
In an imperative language you might write a for loop to iterate through
|
||||
multiply the values into a mutable variable. Or you might write code more
|
||||
functionally with recursion and a match clause. But you can also use ranges
|
||||
and iterators to solve this in rust."""
|
||||
In an imperative language, you might write a for loop that updates
|
||||
a mutable variable. Or, you might write code utilizing recursion
|
||||
and a match clause. In Rust you can take another functional
|
||||
approach, computing the factorial elegantly with ranges and iterators."""
|
||||
|
||||
# TRAITS
|
||||
|
||||
|
|
|
|||
18
install.sh
18
install.sh
|
|
@ -30,6 +30,22 @@ else
|
|||
exit 1
|
||||
fi
|
||||
|
||||
# Look up python installations, starting with 3 with a fallback of 2
|
||||
if [ -x "$(command -v python3)" ]
|
||||
then
|
||||
PY="$(command -v python3)"
|
||||
elif [ -x "$(command -v python)" ]
|
||||
then
|
||||
PY="$(command -v python)"
|
||||
elif [ -x "$(command -v python2)" ]
|
||||
then
|
||||
PY="$(command -v python2)"
|
||||
else
|
||||
echo "ERROR: No working python installation was found"
|
||||
echo "Please install python and add it to the PATH variable"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Function that compares two versions strings v1 and v2 given in arguments (e.g 1.31 and 1.33.0).
|
||||
# Returns 1 if v1 > v2, 0 if v1 == v2, 2 if v1 < v2.
|
||||
function vercomp() {
|
||||
|
|
@ -86,7 +102,7 @@ Path=${1:-rustlings/}
|
|||
echo "Cloning Rustlings at $Path..."
|
||||
git clone -q https://github.com/rust-lang/rustlings $Path
|
||||
|
||||
Version=$(curl -s https://api.github.com/repos/rust-lang/rustlings/releases/latest | python -c "import json,sys;obj=json.load(sys.stdin);print(obj['tag_name']);")
|
||||
Version=$(curl -s https://api.github.com/repos/rust-lang/rustlings/releases/latest | ${PY} -c "import json,sys;obj=json.load(sys.stdin);print(obj['tag_name']);")
|
||||
CargoBin="${CARGO_HOME:-$HOME/.cargo}/bin"
|
||||
|
||||
echo "Checking out version $Version..."
|
||||
|
|
|
|||
Loading…
Reference in a new issue