diff options
-rw-r--r-- | examples/decode.rs | 61 | ||||
-rw-r--r-- | examples/struct.rs | 51 |
2 files changed, 61 insertions, 51 deletions
diff --git a/examples/decode.rs b/examples/decode.rs new file mode 100644 index 0000000..9124596 --- /dev/null +++ b/examples/decode.rs @@ -0,0 +1,61 @@ +//! An example showing off the usage of `RustcDecodable` to automatically decode +//! TOML into a Rust `struct` +//! +//! Note that this works similarly with `serde` as well. + +#![deny(warnings)] + +extern crate toml; +extern crate rustc_serialize; + +/// 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, RustcDecodable)] +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, RustcDecodable)] +struct ServerConfig { + ip: Option<String>, + port: Option<u64>, +} + +#[derive(Debug, RustcDecodable)] +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" + "#; + + // Use the `decode_str` convenience here to decode a TOML string directly + // into the `Config` struct. + // + // Note that the errors reported here won't necessarily be the best, but you + // can get higher fidelity errors working with `toml::Parser` directly. + let decoded: Config = toml::decode_str(toml_str).unwrap(); + println!("{:#?}", decoded); +} diff --git a/examples/struct.rs b/examples/struct.rs deleted file mode 100644 index 52b2eb7..0000000 --- a/examples/struct.rs +++ /dev/null @@ -1,51 +0,0 @@ -#![deny(warnings)] -extern crate toml; -extern crate rustc_serialize; - -use rustc_serialize::Decodable; - -#[derive(Debug,RustcDecodable)] -struct Config { - global_string: Option<String>, - global_integer: Option<u64>, - server: Option<ServerConfig>, - peers: Option<Vec<PeerConfig>>, -} - -#[derive(Debug,RustcDecodable)] -struct ServerConfig { - ip: Option<String>, - port: Option<u64>, -} - -#[derive(Debug,RustcDecodable)] -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" - port = 8081 - "#; - - let toml = toml::Parser::new(&toml_str).parse().unwrap(); - - let mut decoder = toml::Decoder::new(toml::Value::Table(toml)); - let decoded = Config::decode(&mut decoder).unwrap(); - - println!("{:?}", decoded); -} |