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https://github.com/JairusSW/as-json
The only JSON library you'll need for AssemblyScript. SIMD enabled
https://github.com/JairusSW/as-json
assemblyscript json parse performance serialize speed stringify
Last synced: about 2 months ago
JSON representation
The only JSON library you'll need for AssemblyScript. SIMD enabled
- Host: GitHub
- URL: https://github.com/JairusSW/as-json
- Owner: JairusSW
- License: mit
- Created: 2021-05-13T16:47:41.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2024-07-25T22:50:23.000Z (about 2 months ago)
- Last Synced: 2024-07-28T22:00:01.820Z (about 2 months ago)
- Topics: assemblyscript, json, parse, performance, serialize, speed, stringify
- Language: TypeScript
- Homepage:
- Size: 3.82 MB
- Stars: 68
- Watchers: 4
- Forks: 12
- Open Issues: 9
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
- awesome-assemblyscript - JairusSW/as-json - JSON implementation (Packages)
- awesome-list - as-json
README
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v0.9.20
## Installation
```bash
npm install json-as
```
Add the transform to your `asc` command (e.g. in package.json)
```bash
--transform json-as/transform
```
Alternatively, add it to your `asconfig.json`
```
{
// ...
"options": {
"transform": ["json-as/transform"]
}
}
```
If you'd like to see the code that the transform generates, run with `JSON_DEBUG=true`
## Usage
```js
import { JSON } from "json-as/assembly";
// @json or @serializable work here
@json
class Vec3 {
x: f32 = 0.0;
y: f32 = 0.0;
z: f32 = 0.0;
}
@json
class Player {
@alias("first name")
firstName!: string;
lastName!: string;
lastActive!: i32[];
// Drop in a code block, function, or expression that evaluates to a boolean
@omitif("this.age < 18")
age!: i32;
@omitnull()
pos!: Vec3 | null;
isVerified!: boolean;
}
const player: Player = {
firstName: "Emmet",
lastName: "West",
lastActive: [8, 27, 2022],
age: 23,
pos: {
x: 3.4,
y: 1.2,
z: 8.3
},
isVerified: true
};
const stringified = JSON.stringify(player);
const parsed = JSON.parse(stringified);
```
Classes can even have inheritance. Here's a nasty example
```js
@json
class Base {}
@json
class Vec1 extends Base {
x: f32 = 1.0;
}
@json
class Vec2 extends Vec1 {
y: f32 = 2.0;
}
@json
class Vec3 extends Vec2 {
z: f32 = 3.0;
}
const arr: Base[] = [
new Vec1(),
new Vec2(),
new Vec3()
];
const serialized = JSON.stringify(arr);
// [{"x":1.0},{"x":1.0,"y":2.0},{"y":2.0,"x":1.0,"z":3.0}]
const parsed = JSON.parse(serialized);
```
You can also add it to your `asconfig.json`
```json
{
// ...
"options": {
"transform": ["json-as/transform"]
}
}
````
If you use this project in your codebase, consider dropping a [star](https://github.com/JairusSW/as-json). I would really appreciate it!
## Notes
If you want a feature, drop an issue (and again, maybe a star). I'll likely add it in less than 7 days.
## Contact
Contact me at:
Email: `[email protected]`
GitHub: `JairusSW`
Discord: `jairussw`
## Performance
Run or view the benchmarks [here](https://github.com/JairusSW/as-json/tree/master/bench)
Below are benchmark results comparing JavaScript's built-in JSON implementation and `JSON-AS`
My library beats JSON (written in C++) on all counts _and_, I see many places where I can pull at least a 60% uplift in performance if I implement it.
Note: SIMD is in-development and only available on the `v1` branch on GitHub
Serialization Benchmarks:
| Value | JavaScript (ops/s) | JSON-AS (ops/s) | JSON-AS (Pages) | JSON-AS (SIMD+Pages) | Max Throughput |
| -------------------------- | ------------------ | ------------------ | ------------------- | -------------------- | -------------- |
| "hello world" | 7,124,361 | 44,290,480 (6.2x) | 73,601,235 (10.3x) | NOT IMPLEMENTED | 1.91 GB/s |
| 12345 | 9,611,677 | 66,900,642 (6.9x) | 145,924,333 (15.2x) | NOT IMPLEMENTED | 0.58 GB/s |
| 1.2345 | 7,227,259 | 20,322,939 (2.8x) | NOT IMPLEMENTED | NOT IMPLEMENTED | 0.16 GB/s |
| [[],[[]],[[],[[]]]] | 5,655,429 | 34,453,102 (6.0x) | NOT IMPLEMENTED | NOT IMPLEMENTED | 1.32 GB/s |
| { x: f64, y: f64, z: f64 } | 3,878,604 | 44,557,996 (11.5x) | 113,203,242 (29.2x) | 172,023,231 (44.4x) | 8.61 GB/s |
Deserialization Benchmarks:
| Value | JavaScript (ops/s) | JSON-AS (ops/s) | Difference |
| -------------------------- | ------------------ | --------------- | ---------- |
| "hello world" | 12,210,131 | 24,274,496 | + 98% |
| "12345" | 21,376,873 | 254,640,930 | + 1,191% |
| 1.2345 | 23,193,902 | 221,869,840 | + 987% |
| [[],[[]],[[],[[]]]] | 4,777,227 | 74,921,123 | + 1,568% |
| { x: f64, y: f64, z: f64 } | 10,973,723 | 25,214,019 | + 230% |
And my PC specs:
| Component | Specification |
| -------------- | ------------------------------ |
| Wasmer Version | v4.3.0 |
| CPU | AMD Ryzen 7 7800x3D @ 6.00 GHz |
| Memory | T-Force DDR5 6000 MHz |
| OS | Ubuntu WSL2 |
## Issues
Please submit an issue to https://github.com/JairusSW/as-json/issues if you find anything wrong with this library