Module serde_yml::with::nested_singleton_map

source ·
Expand description

Serialize/deserialize nested enums using a YAML map containing one entry in which the key identifies the variant name.

This function is similar to singleton_map, but it applies the singleton map representation recursively to all nested enums within the data structure.

§Example

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, PartialEq, Debug)]
enum InnerEnum {
    Variant1,
    Variant2(String),
}

#[derive(Serialize, Deserialize, PartialEq, Debug)]
enum OuterEnum {
    Variant1(InnerEnum),
    Variant2 {
        inner: InnerEnum,
    },
}

#[derive(Serialize, Deserialize, PartialEq, Debug)]
struct Example {
    #[serde(with = "serde_yml::with::nested_singleton_map")]
    field: OuterEnum,
}

let example = Example {
    field: OuterEnum::Variant2 {
        inner: InnerEnum::Variant2("value".to_string()),
    },
};

let yaml = serde_yml::to_string(&example).unwrap();
assert_eq!(yaml, "field:\n  Variant2:\n    inner:\n      Variant2: value\n");

let deserialized: Example = serde_yml::from_str(&yaml).unwrap();
assert_eq!(example, deserialized);

Functions§

  • Deserializes a value using the nested singleton map representation.
  • Serializes a value using the nested singleton map representation.