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Attempted to access a private field on a struct.
Erroneous code example:
```compile_fail,E0616
mod some_module {
pub struct Foo {
x: u32, // So `x` is private in here.
}
impl Foo {
pub fn new() -> Foo { Foo { x: 0 } }
}
}
let f = some_module::Foo::new();
println!("{}", f.x); // error: field `x` of struct `some_module::Foo` is private
```
If you want to access this field, you have two options:
1) Set the field public:
```
mod some_module {
pub struct Foo {
pub x: u32, // `x` is now public.
}
impl Foo {
pub fn new() -> Foo { Foo { x: 0 } }
}
}
let f = some_module::Foo::new();
println!("{}", f.x); // ok!
```
2) Add a getter function:
```
mod some_module {
pub struct Foo {
x: u32, // So `x` is still private in here.
}
impl Foo {
pub fn new() -> Foo { Foo { x: 0 } }
// We create the getter function here:
pub fn get_x(&self) -> &u32 { &self.x }
}
}
let f = some_module::Foo::new();
println!("{}", f.get_x()); // ok!
```
|
