37 lines
588 B
Rust
37 lines
588 B
Rust
// run-pass
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#![allow(stable_features)]
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#![allow(unused_labels)]
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#![allow(unreachable_code)]
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macro_rules! x {
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($a:lifetime) => {
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$a: loop {
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break $a;
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panic!("failed");
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}
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}
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}
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macro_rules! br {
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($a:lifetime) => {
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break $a;
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}
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}
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macro_rules! br2 {
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($b:lifetime) => {
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'b: loop {
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break $b; // this $b should refer to the outer loop.
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}
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}
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}
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fn main() {
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x!('a);
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'c: loop {
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br!('c);
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panic!("failed");
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}
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'b: loop {
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br2!('b);
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panic!("failed");
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}
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}
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