jsony_value: Memory-efficient JSON value types for jsony.

WARNING: This crate is still experimental and makes extended usage of unsafe.

Values use a 16-byte tagged union representation, allowing [Option<Value>] to also be 16 bytes through niche optimization.

See: jsony for full JSON parsing and serialization.

Key Types

• [Value] - Tagged union representing any JSON value
• [ValueString] - Strings that can be borrowed or owned
• [ValueNumber] - Discriminated union of U64, I64, F64
• [ValueList] - Growable array of values
• [ValueMap] - JSON object support duplicate keys

Examples

use jsony_value::{Value, ValueString, ValueMap, ValueList};

// Create values from Rust types
let num: Value = 42i64.into();
let text: Value = "hello".into();
let flag: Value = true.into();

// Build a JSON object
let map: Value = [
("name", Value::from("Alice")),
("age", Value::from(30i64)),
].into_iter().collect();

Acknowledgements

This project uses large parts of the hashbrown crates internals to build it's multimap.