Line-by-line transliteration port offering YAML serialization/deserialization via Serde-style derives, struct and enum support (YAML !tag), targeting upstream feature parity while preserving behavior and API compatibility.
This is a Kotlin Multiplatform line-by-line transliteration port of dtolnay/serde-yaml.
Original Project: This port is based on dtolnay/serde-yaml. All design credit and project intent belong to the upstream authors; this repository is a faithful port to Kotlin Multiplatform with no behavioural changes intended.
This is an in-progress port. The goal is feature parity with the upstream Rust crate while providing a native Kotlin Multiplatform API. Every Kotlin file carries a // port-lint: source <path> header naming its upstream Rust counterpart so the AST-distance tool can track provenance.
The text below is reproduced and lightly edited from
https://github.com/dtolnay/serde-yaml. It is the upstream project's own description and remains under the upstream authors' authorship; links have been rewritten to absolute upstream URLs so they continue to resolve from this repository.
Rust library for using the Serde serialization framework with data in YAML file format. (This project is no longer maintained.)
[dependencies]
serde = "1.0"
serde_yaml = "0.9"Release notes are available under GitHub releases.
API documentation is available in rustdoc form but the general idea is:
use std::collections::BTreeMap;
fn main() -> Result<(), serde_yaml::Error> {
// You have some type.
let mut map = BTreeMap::new();
map.insert("x".to_string(), 1.0);
map.insert("y".to_string(), 2.0);
// Serialize it to a YAML string.
let yaml = serde_yaml::to_string(&map)?;
assert_eq!(yaml, "x: 1.0\ny: 2.0\n");
// Deserialize it back to a Rust type.
let deserialized_map: BTreeMap<String, f64> = serde_yaml::from_str(&yaml)?;
assert_eq!(map, deserialized_map);
Ok(())
}It can also be used with Serde's derive macros to handle structs and enums defined in your program.
[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_yaml = "0.9"Structs serialize in the obvious way:
use serde::{Serialize, Deserialize};
#[derive(Debug, PartialEq, Serialize, Deserialize)]
struct Point {
x: f64,
y: f64,
}
fn main() -> Result<(), serde_yaml::Error> {
let point = Point { x: 1.0, y: 2.0 };
let yaml = serde_yaml::to_string(&point)?;
assert_eq!(yaml, "x: 1.0\ny: 2.0\n");
let deserialized_point: Point = serde_yaml::from_str(&yaml)?;
assert_eq!(point, deserialized_point);
Ok(())
}Enums serialize using YAML's !tag syntax to identify the variant name.
use serde::{Serialize, Deserialize};
#[derive(Serialize, Deserialize, PartialEq, Debug)]
enum Enum {
Unit,
Newtype(usize),
Tuple(usize, usize, usize),
Struct { x: f64, y: f64 },
}
fn main() -> Result<(), serde_yaml::Error> {
let yaml = "
- !Newtype 1
- !Tuple [0, 0, 0]
- !Struct {x: 1.0, y: 2.0}
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Newtype(1));
assert_eq!(values[1], Enum::Tuple(0, 0, 0));
assert_eq!(values[2], Enum::Struct { x: 1.0, y: 2.0 });
// The last two in YAML's block style instead:
let yaml = "
- !Tuple
- 0
- 0
- 0
- !Struct
x: 1.0
y: 2.0
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Tuple(0, 0, 0));
assert_eq!(values[1], Enum::Struct { x: 1.0, y: 2.0 });
// Variants with no data can be written using !Tag or just the string name.
let yaml = "
- Unit # serialization produces this one
- !Unit
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Unit);
assert_eq!(values[1], Enum::Unit);
Ok(())
}dependencies {
implementation("io.github.kotlinmania:serde-yaml-kotlin:0.2.0")
}./gradlew build
./gradlew testSee AGENTS.md and CLAUDE.md for translator discipline, port-lint header convention, and Rust → Kotlin idiom mapping.
This Kotlin port is distributed under the same MIT license as the upstream dtolnay/serde-yaml. See LICENSE (and any sibling LICENSE-* / NOTICE files mirrored from upstream) for the full text.
Original work copyrighted by the serde-yaml authors.
Kotlin port: Copyright (c) 2026 Sydney Renee and The Solace Project.
Thanks to the dtolnay/serde-yaml maintainers and contributors for the original Rust implementation. This port reproduces their work in Kotlin Multiplatform; bug reports about upstream design or behavior should go to the upstream repository.
This is a Kotlin Multiplatform line-by-line transliteration port of dtolnay/serde-yaml.
Original Project: This port is based on dtolnay/serde-yaml. All design credit and project intent belong to the upstream authors; this repository is a faithful port to Kotlin Multiplatform with no behavioural changes intended.
This is an in-progress port. The goal is feature parity with the upstream Rust crate while providing a native Kotlin Multiplatform API. Every Kotlin file carries a // port-lint: source <path> header naming its upstream Rust counterpart so the AST-distance tool can track provenance.
The text below is reproduced and lightly edited from
https://github.com/dtolnay/serde-yaml. It is the upstream project's own description and remains under the upstream authors' authorship; links have been rewritten to absolute upstream URLs so they continue to resolve from this repository.
Rust library for using the Serde serialization framework with data in YAML file format. (This project is no longer maintained.)
[dependencies]
serde = "1.0"
serde_yaml = "0.9"Release notes are available under GitHub releases.
API documentation is available in rustdoc form but the general idea is:
use std::collections::BTreeMap;
fn main() -> Result<(), serde_yaml::Error> {
// You have some type.
let mut map = BTreeMap::new();
map.insert("x".to_string(), 1.0);
map.insert("y".to_string(), 2.0);
// Serialize it to a YAML string.
let yaml = serde_yaml::to_string(&map)?;
assert_eq!(yaml, "x: 1.0\ny: 2.0\n");
// Deserialize it back to a Rust type.
let deserialized_map: BTreeMap<String, f64> = serde_yaml::from_str(&yaml)?;
assert_eq!(map, deserialized_map);
Ok(())
}It can also be used with Serde's derive macros to handle structs and enums defined in your program.
[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_yaml = "0.9"Structs serialize in the obvious way:
use serde::{Serialize, Deserialize};
#[derive(Debug, PartialEq, Serialize, Deserialize)]
struct Point {
x: f64,
y: f64,
}
fn main() -> Result<(), serde_yaml::Error> {
let point = Point { x: 1.0, y: 2.0 };
let yaml = serde_yaml::to_string(&point)?;
assert_eq!(yaml, "x: 1.0\ny: 2.0\n");
let deserialized_point: Point = serde_yaml::from_str(&yaml)?;
assert_eq!(point, deserialized_point);
Ok(())
}Enums serialize using YAML's !tag syntax to identify the variant name.
use serde::{Serialize, Deserialize};
#[derive(Serialize, Deserialize, PartialEq, Debug)]
enum Enum {
Unit,
Newtype(usize),
Tuple(usize, usize, usize),
Struct { x: f64, y: f64 },
}
fn main() -> Result<(), serde_yaml::Error> {
let yaml = "
- !Newtype 1
- !Tuple [0, 0, 0]
- !Struct {x: 1.0, y: 2.0}
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Newtype(1));
assert_eq!(values[1], Enum::Tuple(0, 0, 0));
assert_eq!(values[2], Enum::Struct { x: 1.0, y: 2.0 });
// The last two in YAML's block style instead:
let yaml = "
- !Tuple
- 0
- 0
- 0
- !Struct
x: 1.0
y: 2.0
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Tuple(0, 0, 0));
assert_eq!(values[1], Enum::Struct { x: 1.0, y: 2.0 });
// Variants with no data can be written using !Tag or just the string name.
let yaml = "
- Unit # serialization produces this one
- !Unit
";
let values: Vec<Enum> = serde_yaml::from_str(yaml).unwrap();
assert_eq!(values[0], Enum::Unit);
assert_eq!(values[1], Enum::Unit);
Ok(())
}dependencies {
implementation("io.github.kotlinmania:serde-yaml-kotlin:0.2.0")
}./gradlew build
./gradlew testSee AGENTS.md and CLAUDE.md for translator discipline, port-lint header convention, and Rust → Kotlin idiom mapping.
This Kotlin port is distributed under the same MIT license as the upstream dtolnay/serde-yaml. See LICENSE (and any sibling LICENSE-* / NOTICE files mirrored from upstream) for the full text.
Original work copyrighted by the serde-yaml authors.
Kotlin port: Copyright (c) 2026 Sydney Renee and The Solace Project.
Thanks to the dtolnay/serde-yaml maintainers and contributors for the original Rust implementation. This port reproduces their work in Kotlin Multiplatform; bug reports about upstream design or behavior should go to the upstream repository.