24 lines
1.1 KiB
Rust
24 lines
1.1 KiB
Rust
union U {
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a: u8,
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b: u16,
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}
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fn main() {
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let u = U {}; //~ ERROR union expressions should have exactly one field
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let u = U { a: 0 }; // OK
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let u = U { a: 0, b: 1 }; //~ ERROR union expressions should have exactly one field
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let u = U { a: 0, b: 1, c: 2 }; //~ ERROR union expressions should have exactly one field
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//~^ ERROR union `U` has no field named `c`
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let u = U { ..u }; //~ ERROR union expressions should have exactly one field
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//~^ ERROR functional record update syntax requires a struct
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let U {} = u; //~ ERROR union patterns should have exactly one field
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let U { a } = u; // OK
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let U { a, b } = u; //~ ERROR union patterns should have exactly one field
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let U { a, b, c } = u; //~ ERROR union patterns should have exactly one field
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//~^ ERROR union `U` does not have a field named `c`
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let U { .. } = u; //~ ERROR union patterns should have exactly one field
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//~^ ERROR `..` cannot be used in union patterns
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let U { a, .. } = u; //~ ERROR `..` cannot be used in union patterns
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}
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