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