feat(clippy): add clippy3

This commit is contained in:
mokou 2022-07-15 12:28:47 +02:00
parent 7fc393bed4
commit 8cfedb1673
5 changed files with 35 additions and 2 deletions

1
.gitignore vendored
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@ -9,3 +9,4 @@ rust-project.json
.idea
.vscode
*.iml
*.o

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@ -4,7 +4,7 @@
//
// 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 :)
// Execute `rustlings hint clippy1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE

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@ -1,5 +1,5 @@
// clippy2.rs
// Make me compile! Execute `rustlings hint clippy2` for hints :)
// Execute `rustlings hint clippy2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE

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@ -0,0 +1,26 @@
// clippy3.rs
// Here's a couple more easy Clippy fixes, so you can see its utility.
#[allow(unused_variables, unused_assignments)]
fn main() {
let my_option: Option<()> = None;
if my_option.is_none() {
my_option.unwrap();
}
let my_arr = &[
-1, -2, -3
-4, -5, -6
];
println!("My array! Here it is: {:?}", my_arr);
let my_empty_vec = vec![1, 2, 3, 4, 5].resize(0, 5);
println!("This Vec is empty, see? {:?}", my_empty_vec);
let mut value_a = 45;
let mut value_b = 66;
// Let's swap these two!
value_a = value_b;
value_b = value_a;
println!("value a: {}; value b: {}", value_a, value_b);
}

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@ -989,6 +989,12 @@ mode = "clippy"
hint = """
`for` loops over Option values are more clearly expressed as an `if let`"""
[[exercises]]
name = "clippy3"
path = "exercises/clippy/clippy3.rs"
mode = "clippy"
hint = "No hints this time!"
# TYPE CONVERSIONS
[[exercises]]