Native JSON for Rust

This crate provides native JSON syntax for Rust, it brings with a powerful way of parsing JSON syntax into native Rust structs. You can declare the JSON object natively as you do with JavaScript, JSON in Rust was made easy!

Note: This crate is just a crude proc-macro (compiler plugin) for Rust, for more features, please refer to wsd::json

Usage

Add dependencies to your Cargo.toml, serde_json is only needed if you want to stringify the JSON object. toml [dependencies] native-json = "1.1" serde = {version = "1.0", features = ["derive"] } serde_json = "1.0"

Example of using native JSON object

```rust use native_json::json; use std::collections::HashMap; use serde::{Deserialize, Serialize};

fn main() { let mut json = json!{ name: "native json", style: { color: "red", size: 12, bold: true, range: null }, array: [5,4,3,2,1], vector: vec![1,2,3,4,5], hashmap: HashMap::from([ ("a", 1), ("b", 2), ("c", 3) ]);, students: [ {name: "John", age: 18}, {name: "Jack", age: 21}, ], };

// Native access
json.style.size += 1;
json.students[0].age += 2;

// Debug
println!("{:#?}", t);

// Stringify
let text = serde_json::to_string_pretty(&json).unwrap();
println!("{}", text);

} ```

Declare a named JSON struct

With JSON decalre syntax, you can declare nested native JSON object in place.

JSON Declare Syntax

rust json!{ JSON_OBJECT_NAME { name : type, array: [type], object: { name: type, ... }, ... }}

The native-json will generate native Rust structs for you, each object is named by object hierarchy path, concatenated with underscore.

1. JSON_OBJECT_NAME.object was converted to JSON_OBJECT_NAME_object
2. JSON_OBJECT_NAME.array's item was converted to JSON_OBJECT_NAME_array_item

Example of using named JSON object

```rust use native_json::json; use serde::{Deserialize, Serialize}; use std::collections::HashMap;

json!{ School { name: String, students: [ { name: String, age: u16 }, ... ], map: HashMap, nullable: Option }}

fn main() { let mut school = School::new();

school.name = "MIT".to_string();
school.map.insert("Tom".to_owned(), "Profile".to_owned());

// using initializer
let mut john = School_students_item::new();
john.name = "John".to_owned();
john.age = 18;
school.students.push(john);

// using struct
let jack = School_students_item { name: "Jack".to_string(), age: 21 };
school.students.push(jack);

// show
println!("{:#?}", school);

} ```