May be it's in the language, but I wasn't able to find it. Are there an ability to create per-structure enums?
(This code does not compile).
pub struct Value{
x: f64,
y: f64,
type: enum {
Exact,
Positive,
Negative,
Out_of_Domain
}
}```
This enum is never used outside of the structure, so it would be nice to have it declared inside structure.
Is there a way to do something like this?
This feature doesn't exist. The enum can easily be declared as a private enum next to the struct - and then you can add the required derives/trait impls it too, once the type has a name (you'll find that this is close to mandatory, let's say if you for example want the enum values to be Copy).