rust-clippy/tests/compile-fail/vec.rs

51 lines
1.1 KiB
Rust

#![feature(plugin)]
#![plugin(clippy)]
#![deny(useless_vec)]
fn on_slice(_: &[u8]) {}
#[allow(ptr_arg)]
fn on_vec(_: &Vec<u8>) {}
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]);
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);
}
}