23 lines
498 B
Rust
23 lines
498 B
Rust
|
#![feature(plugin)]
|
||
|
|
#![plugin(clippy)]
|
||
|
|
#[deny(used_underscore_binding)]
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let foo = 0u32;
|
||
|
|
prefix_underscore(foo); //should fail
|
||
|
|
non_prefix_underscore(foo); //should pass
|
||
|
|
unused_underscore(foo); //should pass
|
||
|
|
}
|
||
|
|
|
||
|
|
fn prefix_underscore(_x: u32){
|
||
|
|
println!("{}", _x + 1); //~Error: Used binding which is prefixed with an underscore
|
||
|
|
}
|
||
|
|
|
||
|
|
fn non_prefix_underscore(some_foo: u32) {
|
||
|
|
println!("{}", some_foo + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
fn unused_underscore(_foo: u32) {
|
||
|
|
println!("{}", 1);
|
||
|
|
}
|