David Tolnay
0307f604ea
warning: this `match` expression can be replaced with `?`
--> serde/build.rs:111:17
|
111 | let rustc = match env::var_os("RUSTC") {
| _________________^
112 | | Some(rustc) => rustc,
113 | | None => return None,
114 | | };
| |_____^ help: try instead: `env::var_os("RUSTC")?`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
= note: `-W clippy::question-mark` implied by `-W clippy::all`
= help: to override `-W clippy::all` add `#[allow(clippy::question_mark)]`
warning: this `match` expression can be replaced with `?`
--> serde/build.rs:131:16
|
131 | let next = match pieces.next() {
| ________________^
132 | | Some(next) => next,
133 | | None => return None,
134 | | };
| |_____^ help: try instead: `pieces.next()?`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
Serde 
Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.
You may be looking for:
- An overview of Serde
- Data formats supported by Serde
- Setting up
#[derive(Serialize, Deserialize)] - Examples
- API documentation
- Release notes
Serde in action
Click to show Cargo.toml. Run this code in the playground.
[dependencies]
# The core APIs, including the Serialize and Deserialize traits. Always
# required when using Serde. The "derive" feature is only required when
# using #[derive(Serialize, Deserialize)] to make Serde work with structs
# and enums defined in your crate.
serde = { version = "1.0", features = ["derive"] }
# Each data format lives in its own crate; the sample code below uses JSON
# but you may be using a different one.
serde_json = "1.0"
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug)]
struct Point {
x: i32,
y: i32,
}
fn main() {
let point = Point { x: 1, y: 2 };
// Convert the Point to a JSON string.
let serialized = serde_json::to_string(&point).unwrap();
// Prints serialized = {"x":1,"y":2}
println!("serialized = {}", serialized);
// Convert the JSON string back to a Point.
let deserialized: Point = serde_json::from_str(&serialized).unwrap();
// Prints deserialized = Point { x: 1, y: 2 }
println!("deserialized = {:?}", deserialized);
}
Getting help
Serde is one of the most widely used Rust libraries so any place that Rustaceans congregate will be able to help you out. For chat, consider trying the #rust-questions or #rust-beginners channels of the unofficial community Discord (invite: https://discord.gg/rust-lang-community), the #rust-usage or #beginners channels of the official Rust Project Discord (invite: https://discord.gg/rust-lang), or the #general stream in Zulip. For asynchronous, consider the [rust] tag on StackOverflow, the /r/rust subreddit which has a pinned weekly easy questions post, or the Rust Discourse forum. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time.
License
Licensed under either of Apache License, Version 2.0 or MIT license at your option.Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.