rust/clippy_tests/examples/never_loop.rs
2017-06-01 00:06:45 -05:00

119 lines
1.6 KiB
Rust

#![feature(plugin)]
#![plugin(clippy)]
#![allow(single_match, unused_assignments, unused_variables)]
fn test1() {
let mut x = 0;
loop { // never_loop
x += 1;
if x == 1 {
return
}
break;
}
}
fn test2() {
let mut x = 0;
loop {
x += 1;
if x == 1 {
break
}
}
}
fn test3() {
let mut x = 0;
loop { // never loops
x += 1;
break
}
}
fn test4() {
let mut x = 1;
loop {
x += 1;
match x {
5 => return,
_ => (),
}
}
}
fn test5() {
let i = 0;
loop { // never loops
while i == 0 { // never loops
break
}
return
}
}
fn test6() {
let mut x = 0;
'outer: loop { // never loops
x += 1;
loop { // never loops
if x == 5 { break }
continue 'outer
}
return
}
}
fn test7() {
let mut x = 0;
loop {
x += 1;
match x {
1 => continue,
_ => (),
}
return
}
}
fn test8() {
let mut x = 0;
loop {
x += 1;
match x {
5 => return,
_ => continue,
}
}
}
fn test9() {
let x = Some(1);
while let Some(y) = x { // never loops
return
}
}
fn test10() {
for x in 0..10 { // never loops
match x {
1 => break,
_ => return,
}
}
}
fn main() {
test1();
test2();
test3();
test4();
test5();
test6();
test7();
test8();
test9();
test10();
}