57 lines
1.2 KiB
Rust
57 lines
1.2 KiB
Rust
//! An example showing off the usage of `Deserialize` to automatically decode
|
|
//! TOML into a Rust `struct`
|
|
|
|
#![deny(warnings)]
|
|
|
|
extern crate toml;
|
|
extern crate serde;
|
|
#[macro_use]
|
|
extern crate serde_derive;
|
|
|
|
/// This is what we're going to decode into. Each field is optional, meaning
|
|
/// that it doesn't have to be present in TOML.
|
|
#[derive(Debug, Deserialize)]
|
|
struct Config {
|
|
global_string: Option<String>,
|
|
global_integer: Option<u64>,
|
|
server: Option<ServerConfig>,
|
|
peers: Option<Vec<PeerConfig>>,
|
|
}
|
|
|
|
/// Sub-structs are decoded from tables, so this will decode from the `[server]`
|
|
/// table.
|
|
///
|
|
/// Again, each field is optional, meaning they don't have to be present.
|
|
#[derive(Debug, Deserialize)]
|
|
struct ServerConfig {
|
|
ip: Option<String>,
|
|
port: Option<u64>,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct PeerConfig {
|
|
ip: Option<String>,
|
|
port: Option<u64>,
|
|
}
|
|
|
|
fn main() {
|
|
let toml_str = r#"
|
|
global_string = "test"
|
|
global_integer = 5
|
|
|
|
[server]
|
|
ip = "127.0.0.1"
|
|
port = 80
|
|
|
|
[[peers]]
|
|
ip = "127.0.0.1"
|
|
port = 8080
|
|
|
|
[[peers]]
|
|
ip = "127.0.0.1"
|
|
"#;
|
|
|
|
let decoded: Config = toml::from_str(toml_str).unwrap();
|
|
println!("{:#?}", decoded);
|
|
}
|