rust/tests/compile-fail/unused_labels.rs
2016-03-28 21:24:36 +02:00

35 lines
629 B
Rust

#![plugin(clippy)]
#![feature(plugin)]
#![allow(dead_code, items_after_statements)]
#![deny(unused_label)]
fn unused_label() {
'label: for i in 1..2 { //~ERROR: unused label `'label`
if i > 4 { continue }
}
}
fn foo() {
'same_label_in_two_fns: loop {
break 'same_label_in_two_fns;
}
}
fn bla() {
'a: loop { break } //~ERROR: unused label `'a`
fn blub() {}
}
fn main() {
'a: for _ in 0..10 {
while let Some(42) = None {
continue 'a;
}
}
'same_label_in_two_fns: loop { //~ERROR: unused label `'same_label_in_two_fns`
let _ = 1;
}
}