68 lines
1.4 KiB
Rust
68 lines
1.4 KiB
Rust
#![feature(plugin)]
|
|
#![plugin(clippy)]
|
|
|
|
#![deny(useless_vec)]
|
|
|
|
fn on_slice(_: &[u8]) {}
|
|
#[allow(ptr_arg)]
|
|
fn on_vec(_: &Vec<u8>) {}
|
|
|
|
struct Line {
|
|
length: usize,
|
|
}
|
|
|
|
impl Line {
|
|
fn length(&self) -> usize {
|
|
self.length
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
on_slice(&vec![]);
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION on_slice(&[])
|
|
on_slice(&[]);
|
|
|
|
on_slice(&vec![1, 2]);
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION on_slice(&[1, 2])
|
|
on_slice(&[1, 2]);
|
|
|
|
on_slice(&vec ![1, 2]);
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION on_slice(&[1, 2])
|
|
on_slice(&[1, 2]);
|
|
|
|
on_slice(&vec!(1, 2));
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION on_slice(&[1, 2])
|
|
on_slice(&[1, 2]);
|
|
|
|
on_slice(&vec![1; 2]);
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION on_slice(&[1; 2])
|
|
on_slice(&[1; 2]);
|
|
|
|
on_vec(&vec![]);
|
|
on_vec(&vec![1, 2]);
|
|
on_vec(&vec![1; 2]);
|
|
|
|
// Now with non-constant expressions
|
|
let line = Line { length: 2 };
|
|
|
|
on_slice(&vec![2; line.length]);
|
|
on_slice(&vec![2; line.length()]);
|
|
|
|
for a in vec![1, 2, 3] {
|
|
//~^ ERROR useless use of `vec!`
|
|
//~| HELP you can use
|
|
//~| SUGGESTION for a in &[1, 2, 3] {
|
|
println!("{}", a);
|
|
}
|
|
}
|