extern crate ron;
#[macro_use]
extern crate serde;
use std::collections::HashMap;
use std::default::Default;
use std::fs::File;
use ron::ser::{PrettyConfig, to_string_pretty};
#[derive(Serialize)]
struct Config {
float: (f32, f64),
tuple: TupleStruct,
map: HashMap<u8, char>,
nested: Nested,
var: Variant,
array: Vec<()>,
}
#[derive(Serialize)]
struct TupleStruct((), bool);
#[derive(Serialize)]
enum Variant {
A(u8, &'static str),
}
#[derive(Serialize)]
struct Nested {
a: String,
b: char,
}
fn main() {
use std::io::Write;
use std::iter::FromIterator;
let mut file = File::create("config.ron").expect("Failed to create file");
let data = Config {
float: (2.18, -1.1),
tuple: TupleStruct((), false),
map: HashMap::from_iter(vec![(0, '1'), (1, '2'), (3, '5'), (8, '1')]),
nested: Nested {
a: "Hello from \"RON\"".to_string(),
b: 'b',
},
var: Variant::A(!0, ""),
array: vec![(); 3],
};
let pretty = PrettyConfig {
separate_tuple_members: true,
enumerate_arrays: true,
..PrettyConfig::default()
};
let s = to_string_pretty(&data, pretty).expect("Serialization failed");
file.write(s.as_bytes()).expect("Failed to write data to file");
}