aac1c65033
The fact that the tag entry is consumed was only observable if there is
a later flattened map field, at which point the behavior is already
confusing anyway.
#[derive(Deserialize)]
struct Example {
#[serde(flatten)]
a: InternallyTagged,
#[serde(flatten)]
rest: BTreeMap<String, Value>,
}
Before this simplification the map would receive all the fields of the
internally tagged enum but not its tag, after it receives all the fields
including the tag.
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.
serde = "1.0"
# Support for #[derive(Serialize, Deserialize)]. Required if you want Serde
# to work for structs and enums defined in your crate.
serde_derive = "1.0"
# 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"
#[macro_use]
extern crate serde_derive;
extern crate serde;
extern crate serde_json;
#[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 developers live in the #serde channel on
irc.mozilla.org. The #rust channel is also a
good resource with generally faster response time but less specific knowledge
about Serde. If IRC is not your thing or you don't get a good response, we are
happy to respond to GitHub issues
as well.
License
Serde is licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
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.