205 lines
2.9 KiB
Rust
205 lines
2.9 KiB
Rust
#![allow(
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clippy::single_match,
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unused_assignments,
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unused_variables,
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clippy::while_immutable_condition
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)]
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fn test1() {
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let mut x = 0;
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loop {
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// clippy::never_loop
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x += 1;
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if x == 1 {
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return;
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}
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break;
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}
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}
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fn test2() {
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let mut x = 0;
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loop {
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x += 1;
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if x == 1 {
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break;
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}
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}
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}
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fn test3() {
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let mut x = 0;
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loop {
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// never loops
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x += 1;
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break;
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}
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}
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fn test4() {
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let mut x = 1;
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loop {
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x += 1;
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match x {
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5 => return,
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_ => (),
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}
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}
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}
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fn test5() {
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let i = 0;
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loop {
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// never loops
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while i == 0 {
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// never loops
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break;
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}
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return;
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}
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}
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fn test6() {
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let mut x = 0;
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'outer: loop {
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x += 1;
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loop {
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// never loops
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if x == 5 {
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break;
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}
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continue 'outer;
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}
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return;
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}
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}
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fn test7() {
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let mut x = 0;
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loop {
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x += 1;
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match x {
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1 => continue,
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_ => (),
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}
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return;
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}
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}
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fn test8() {
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let mut x = 0;
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loop {
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x += 1;
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match x {
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5 => return,
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_ => continue,
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}
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}
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}
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fn test9() {
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let x = Some(1);
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while let Some(y) = x {
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// never loops
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return;
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}
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}
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fn test10() {
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for x in 0..10 {
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// never loops
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match x {
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1 => break,
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_ => return,
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}
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}
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}
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fn test11<F: FnMut() -> i32>(mut f: F) {
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loop {
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return match f() {
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1 => continue,
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_ => (),
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};
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}
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}
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pub fn test12(a: bool, b: bool) {
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'label: loop {
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loop {
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if a {
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continue 'label;
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}
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if b {
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break;
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}
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}
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break;
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}
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}
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pub fn test13() {
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let mut a = true;
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loop {
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// infinite loop
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while a {
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if true {
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a = false;
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continue;
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}
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return;
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}
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}
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}
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pub fn test14() {
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let mut a = true;
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'outer: while a {
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// never loops
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while a {
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if a {
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a = false;
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continue;
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}
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}
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break 'outer;
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}
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}
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// Issue #1991: the outter loop should not warn.
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pub fn test15() {
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'label: loop {
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while false {
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break 'label;
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}
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}
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}
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// Issue #4058: `continue` in `break` expression
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pub fn test16() {
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let mut n = 1;
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loop {
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break if n != 5 {
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n += 1;
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continue;
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};
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}
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}
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fn main() {
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test1();
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test2();
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test3();
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test4();
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test5();
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test6();
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test7();
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test8();
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test9();
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test10();
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test11(|| 0);
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test12(true, false);
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test13();
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test14();
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}
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