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464a6b1b4a
When trying to construct a struct that has a public field of a private type, suggest using `..` if that field has a default value.
```
error[E0603]: struct `Priv1` is private
--> $DIR/non-exhaustive-ctor.rs:25:39
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LL | let _ = S { field: (), field1: m::Priv1 {} };
| ------ ^^^^^ private struct
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| while setting this field
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note: the struct `Priv1` is defined here
--> $DIR/non-exhaustive-ctor.rs:14:4
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LL | struct Priv1 {}
| ^^^^^^^^^^^^
help: the field `field1` you're trying to set has a default value, you can use `..` to use it
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LL | let _ = S { field: (), .. };
| ~~
```
30 lines
752 B
Rust
30 lines
752 B
Rust
//@ aux-build:struct_field_default.rs
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#![feature(default_field_values)]
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extern crate struct_field_default as xc;
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use m::S;
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mod m {
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pub struct S {
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pub field: () = (),
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pub field1: Priv1 = Priv1 {},
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pub field2: Priv2 = Priv2,
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}
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struct Priv1 {}
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struct Priv2;
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}
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fn main() {
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let _ = S { field: (), field1: m::Priv1 {} };
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//~^ ERROR missing field `field2`
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//~| ERROR struct `Priv1` is private
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let _ = S { field: (), field1: m::Priv1 {}, field2: m::Priv2 };
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//~^ ERROR struct `Priv1` is private
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//~| ERROR unit struct `Priv2` is private
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let _ = xc::B { a: xc::Priv };
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//~^ ERROR unit struct `Priv` is private
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let _ = xc::C { a: xc::Priv };
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//~^ ERROR unit struct `Priv` is private
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}
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