Rust

Question

'daki bir örneği türetirken birden fazla impl adayı rustc-serialize - (d) e (n) kodu, Rust 1.7'de iki String s içeren bir struct kodunu kullanmaya çalışırken, derleyici çok fazla sayıda adayın olduğundan şikayetçi değildir ve hangisini seçeceğimi bilmek.

kodu:

#[derive(RustcDecodable, RustcEncodable, Debug)] 
struct gonet { 
    ip: String, 
    mask: String, 
} 

şikayet:

src/bin/measurer.rs:18:5: 18:15 error: multiple applicable items in scope [E0034] 
src/bin/measurer.rs:18  ip: String, 
          ^~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:18:5: 18:15 help: run `rustc --explain E0034` to see a detailed explanation 
src/bin/measurer.rs:18:5: 18:15 note: candidate #1 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `str` 
src/bin/measurer.rs:18  ip: String, 
          ^~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:18:5: 18:15 note: candidate #2 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `collections::string::String` 
src/bin/measurer.rs:18  ip: String, 
          ^~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:18:5: 18:15 note: candidate #3 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `&_` 
src/bin/measurer.rs:18  ip: String, 
          ^~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:18:5: 18:15 note: candidate #4 is defined in an impl of the trait `radix_trie::keys::TrieKey` for the type `_` 
src/bin/measurer.rs:18  ip: String, 
          ^~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:19:5: 19:17 error: multiple applicable items in scope [E0034] 
src/bin/measurer.rs:19  mask: String, 
          ^~~~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:19:5: 19:17 help: run `rustc --explain E0034` to see a detailed explanation 
src/bin/measurer.rs:19:5: 19:17 note: candidate #1 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `str` 
src/bin/measurer.rs:19  mask: String, 
          ^~~~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:19:5: 19:17 note: candidate #2 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `collections::string::String` 
src/bin/measurer.rs:19  mask: String, 
          ^~~~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:19:5: 19:17 note: candidate #3 is defined in an impl of the trait `rustc_serialize::serialize::Encodable` for the type `&_` 
src/bin/measurer.rs:19  mask: String, 
          ^~~~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 
src/bin/measurer.rs:19:5: 19:17 note: candidate #4 is defined in an impl of the trait `radix_trie::keys::TrieKey` for the type `_` 
src/bin/measurer.rs:19  mask: String, 
          ^~~~~~~~~~~~ 
src/bin/measurer.rs:16:26: 16:40 note: in this expansion of #[derive_RustcEncodable] (defined in src/bin/measurer.rs) 

My kodu da, aynı zamanda, bir encode() yöntemi vardır radix_tree sandık gelen TrieKey özellik kullanın.

Her ikisini de kullandığım için her iki özelliğe de sahip olmak isterim, ancak çakışıyorlar, dolayısıyla türetmenin hangi özelliğinin String türetme için kullanılacağını nasıl belirleyebilirim (eğer mümkünse)?

Değil useTrieKey eser ing ama use hem beni tanıyan bir çözüm istiyorum.

Answer 1

Orijinal gönderideki yorumların altında belirtildiği gibi, bu aslında bug. Bir düzeltme şimdi available.