RosettaCodeData/Task/JSON/Rust/json-4.rust

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#[derive(Serialize, Deserialize)]
struct W { a: i32, b: i32 } // => { "a": 0, "b": 0 }
#[derive(Serialize, Deserialize)]
struct X(i32, i32); // => [0, 0]
#[derive(Serialize, Deserialize)]
struct Y(i32); // => 0
#[derive(Serialize, Deserialize)]
struct Z; // => null
#[derive(Serialize, Deserialize)]
enum E {
W { a: i32, b: i32 }, // => { "W": { "a": 0, "b": 0 } }
X(i32, i32), // => { "X": [0, 0] }
Y(i32), // => { "Y": 0 }
Z, // => { "Z" }
}