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@lutter
Last active Feb 27, 2019
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serde_json regression from 1.0.25 to 1.0.38
[package]
name = "json"
version = "0.1.0"
authors = ["David Lutterkort <lutter@watzmann.net>"]
edition = "2018"
[dependencies]
serde_json = { version = "=1.0.38", features = ["arbitrary_precision"] }
#serde_json = { version = "=1.0.25", features = ["arbitrary_precision"] }
serde_derive = "1.0.88"
serde = "1.0.88"
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
extern crate serde;
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
#[serde(tag = "type", content = "data")]
pub enum Value {
String(String),
Int(i32),
// Changing this to f64 makes the example work with 1.0.38
Float(f32),
Bool(bool),
List(Vec<Value>),
Null
}
fn main() {
let v = Value::Float(159.1);
let jv = dbg!(serde_json::to_value(v).unwrap());
// This works with serde_json 1.0.25, but not 1.0.38
// With that, the error is
// "invalid type: map, expected f32"
let v = dbg!(serde_json::from_value::<Value>(jv));
}
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