Crate serde_yml

Serde YML (a fork of Serde YAML)

Serde YML is a Rust library for using the Serde serialization framework with data in YAML file format.

Features

• Serialization and deserialization of Rust data structures to/from YAML format
• Support for custom structs and enums using Serde’s derive macros
• Handling of YAML’s !tag syntax for representing enum variants
• Direct access to YAML values through the Value type and related types like Mapping and Sequence
• Comprehensive error handling with Error, Location, and Result types
• Serialization to YAML using to_string and to_writer functions
• Deserialization from YAML using from_str, from_slice, and from_reader functions
• Customizable serialization and deserialization behavior using Serde’s #[serde(with = ...)] attribute
• Support for serializing/deserializing enums using a YAML map with a single key-value pair through the singleton_map module
• Recursive application of singleton_map serialization/deserialization to all enums within a data structure using the singleton_map_recursive module
• Serialization and deserialization of optional enum fields using the singleton_map_optional module
• Handling of nested enum structures with optional inner enums using the singleton_map_recursive module
• Customization of serialization and deserialization logic for enums using the singleton_map_with module and custom helper functions

Installation

Add this to your Cargo.toml:

[dependencies]
serde = "1.0"
serde_yml = "0.0.12"

Usage

Here’s a quick example on how to use Serde YML to serialize and deserialize a struct to and from YAML:

use serde::{Serialize, Deserialize};

#[derive(Debug, PartialEq, Serialize, Deserialize)]
struct Point {
    x: f64,
    y: f64,
}

fn main() -> Result<(), serde_yml::Error> {
    let point = Point { x: 1.0, y: 2.0 };

    // Serialize to YAML
    let yaml = serde_yml::to_string(&point)?;
    assert_eq!(yaml, "x: 1.0\n'y': 2.0\n");

    // Deserialize from YAML
    let deserialized_point: Point = serde_yml::from_str(&yaml)?;
    assert_eq!(point, deserialized_point);

    Ok(())
}

Documentation

For full API documentation, please visit https://docs.rs/serde-yml.

Rust Version Compatibility

Compiler support: requires rustc 1.56.0+

Examples

Serde YML provides a set of comprehensive examples to demonstrate its usage and capabilities. You can find them in the examples directory of the project.

To run the examples, clone the repository and execute the following command in your terminal from the project root directory:

cargo run --example example

The examples cover various scenarios, including serializing and deserializing structs, enums, optional fields, custom structs, and more.

Re-exports

• pub use crate::de::from_reader;
• pub use crate::de::from_slice;
• pub use crate::de::from_str;
• pub use crate::de::Deserializer;
• pub use crate::modules::error::Error;
• pub use crate::modules::error::Location;
• pub use crate::modules::error::Result;
• pub use crate::ser::to_string;
• pub use crate::ser::to_writer;
• pub use crate::ser::Serializer;
• pub use crate::ser::State;

Modules

• de
  The de module contains the library’s YAML deserializer.
• libyml
  The libyml module contains the library’s YAML parser and emitter.
• loader
  The loader module contains the Loader type for YAML loading.
• mapping
  The mapping module contains the Mapping type for YAML mappings. A YAML mapping and its iterator types.
• modules
  The modules module contains the library’s modules.
• number
  The number module contains the Number type for YAML numbers.
• ser
  The ser module contains the library’s YAML serializer. YAML Serialization
• value
  The value module contains the Value type for YAML values. The Value enum, a loosely typed way of representing any valid YAML value.
• with
  The with module contains the With type for YAML values. Customizations to use with Serde’s #[serde(with = …)] attribute.

Structs

• Mapping
  A YAML mapping in which the keys and values are both serde_yml::Value.
• Number
  Represents a YAML number, whether integer or floating point.

Enums

• Value
  Represents any valid YAML value.

Traits

• Index
  A type that can be used to index into a serde_yml::Value. See the get and get_mut methods of Value.

Functions

• from_value
  Interpret a serde_yml::Value as an instance of type T.
• to_value
  Converts a serializable value into a serde_yml::Value.

Type Aliases

• Sequence
  A YAML sequence in which the elements are serde_yml::Value.