Duplicate definitions when overwriting get with get_copy

[pablosichert]

Hey @Hoverbear, thanks for this handy crate 😸

I noticed that it's not possible to overwrite get with get_copy, e.g.

use getset::{CopyGetters, Getters};

#[derive(Getters, CopyGetters)]
#[get = "pub"]
struct Foo {
    a: String,
    b: String,
    c: String,
    #[get_copy = "pub"]
    d: u64,
}

doesn't compile with

error[E0592]: duplicate definitions with name `d`
 --> src/main.rs:3:19
  |
3 | #[derive(Getters, CopyGetters)]
  |          -------  ^^^^^^^^^^^ duplicate definitions for `d`
  |          |
  |          other definition for `d`
  |
  = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to previous error

For more information about this error, try `rustc --explain E0592`.
error: could not compile `foo`

The workaround is to use field level attributes on every property:

use getset::{CopyGetters, Getters};

#[derive(Getters, CopyGetters)]
struct Foo {
    #[get = "pub"]
    a: String,
    #[get = "pub"]
    b: String,
    #[get = "pub"]
    c: String,
    #[get_copy = "pub"]
    d: u64,
}

[Hoverbear]

I'm going to suggest you don't use struct level attributes, sorry. :(

I think its a feature that's come back to bite us.

[pablosichert]

No problem, works for me!