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https://github.com/rust-lang/rust
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41 lines
1 KiB
Rust
41 lines
1 KiB
Rust
//@ run-pass
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#[derive(Debug)]
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enum Other {
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One,
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Two,
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Three,
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}
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#[derive(Debug)]
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enum Test {
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Foo { first: usize, second: usize },
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Bar { other: Option<Other> },
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Baz,
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}
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fn test(x: Option<Test>) -> bool {
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match x {
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Some(
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Test::Foo { first: 1024 | 2048, second: 2048 | 4096 }
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| Test::Bar { other: Some(Other::One | Other::Two) },
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) => true,
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// wild case
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Some(_) => false,
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// empty case
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None => false,
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}
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}
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fn main() {
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assert!(test(Some(Test::Foo { first: 1024, second: 4096 })));
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assert!(!test(Some(Test::Foo { first: 2048, second: 8192 })));
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assert!(!test(Some(Test::Foo { first: 42, second: 2048 })));
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assert!(test(Some(Test::Bar { other: Some(Other::One) })));
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assert!(test(Some(Test::Bar { other: Some(Other::Two) })));
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assert!(!test(Some(Test::Bar { other: Some(Other::Three) })));
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assert!(!test(Some(Test::Bar { other: None })));
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assert!(!test(Some(Test::Baz)));
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assert!(!test(None));
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}
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