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21 lines
482 B
Rust
21 lines
482 B
Rust
// Check that or patterns are lowered correctly in `if let` and `while let` expressions.
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//@ run-pass
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fn main() {
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let mut opt = Some(3);
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let mut w = Vec::new();
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while let Some(ref mut val @ (3 | 4 | 6)) = opt {
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w.push(*val);
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*val += 1;
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}
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assert_eq!(w, [3, 4]);
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if let &(None | Some(6 | 7)) = &opt {
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unreachable!();
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}
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if let Some(x @ (4 | 5 | 6)) = opt {
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assert_eq!(x, 5);
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} else {
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unreachable!();
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}
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}
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