rust/tests/ui/structs/default-field-values/auxiliary/struct_field_default.rs

#![feature(default_field_values)]

pub struct A {
    pub a: isize = 42,
}

struct Priv;

pub struct B {
    pub a: Priv = Priv,
}

pub struct C {
    pub a: Priv,
}
Support x-crate default fields 2024-12-07 03:04:51 +00:00			`#![feature(default_field_values)]`

			`pub struct A {`
			`pub a: isize = 42,`
			`}`
Detect struct construction with private field in field with default 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 \| LL \| let _ = S { field: (), field1: m::Priv1 {} }; \| ------ ^^^^^ private struct \| \| \| while setting this field \| note: the struct `Priv1` is defined here --> $DIR/non-exhaustive-ctor.rs:14:4 \| LL \| struct Priv1 {} \| ^^^^^^^^^^^^ help: the field `field1` you're trying to set has a default value, you can use `..` to use it \| LL \| let _ = S { field: (), .. }; \| ~~ ``` 2025-01-21 21:07:20 +00:00
			`struct Priv;`

			`pub struct B {`
			`pub a: Priv = Priv,`
			`}`

			`pub struct C {`
			`pub a: Priv,`
			`}`