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27f079ae24
```
error: `A` has no fields, `..` needs at least one default field in the struct definition
--> $DIR/empty-struct.rs:16:17
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LL | let _ = A { .. };
| - ^^
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| this type has no fields
```
22 lines
567 B
Rust
22 lines
567 B
Rust
#![feature(default_field_values)]
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// If an API wants users to always use `..` even if they specify all the fields, they should use a
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// sentinel field. As of now, that field can't be made private so it is only constructable with this
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// syntax, but this might change in the future.
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struct A {}
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struct B();
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struct C;
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struct D {
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x: i32,
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}
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struct E(i32);
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fn main() {
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let _ = A { .. }; //~ ERROR has no fields
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let _ = B { .. }; //~ ERROR has no fields
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let _ = C { .. }; //~ ERROR has no fields
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let _ = D { x: 0, .. };
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let _ = E { 0: 0, .. };
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}
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