README.md

TurboScript

Super charged typed JavaScript dialect for parallel programming which compiles to WebAssembly

⚠️ Major re-architecting is undergoing.

New spec (WIP) : TurboScript Spec

Things going to change

• Binaryen as WebAssembly Backend

• Interop with TypeScript/JavaScript (Import well typed TypeScript to TurboScript, will not compile to WASM)

• Import any compiled WASM module to TurboScript

• Integration with WebPack

    @             _________
     \____       /         \
     /    \     /   ____    \
     \_    \   /   /    \    \
       \    \ (    \__/  )    )          ________  _____  ___  ____
        \    \_\ \______/    /          /_  __/ / / / _ \/ _ )/ __ \
         \      \           /___         / / / /_/ / , _/ _  / /_/ /
          \______\_________/____"-_____ /_/  \____/_/|_/____/\____/

TurboScript is an experimental programming language for parallel programming for web which compiles to JavaScript (asm.js) and WebAssembly (targeting post-MVP). The syntax is similar to TypeScript (Hardly trying to fill the gaps) and the compiler is open source and written in TypeScript. TurboScript has zero dependencies.

This is still an experiment and isn't intended for real use yet but we are working towards an MVP release. Please feel free to open issues if it stop working or need a new feature.

Try online

Install

npm install -g turboscript

Types

Type	Native type	Description
int8	i32	An 8-bit signed integer.
uint8	i32	An 8-bit unsigned integer.
int16	i32	A 16-bit signed integer.
uint16	i32	A 16-bit unsigned integer.
int32	i32	A 32-bit signed integer.
uint32	i32	A 32-bit unsigned integer.
int64	i64	A 64-bit signed integer.
uint64	i64	A 64-bit unsigned integer.
boolean	i32	A 1-bit unsigned integer.
float32	f32	A 32-bit floating point number.
float64	f64	A 64-bit floating point number.
void	none	No return type.
string	*	A utf-8 encoded textual data type.
Array<T>	*	A generic array data type.

Syntax

variables

var myGlobal:int32 = 1;
let evaluatedVar:int32 = myGlobal + 1;
// let is same as var.

Number Literals

let integer:int32 = 1234;
let integer64bit:int64 = 1234;
let floatingPoint:float32 = 1.234f;
let floatingPoint64bit:float64 = 1.234; // default floating point number is 64 bit

// You can also omit type since compiler infer type from the literal
let integer = 1234; // default integer is 32 bit, use type :int64 for 64 bit integer 
let floatingPoint = 1.234f;
let floatingPoint64bit = 1.234;

function

// add.tbs
export function add(a:int32, b:int32):int32 {
    return a + b;
}

class

// vector3D.tbs
export class Vector3D {
    x:float32;
    y:float32;
    z:float32;

    constructor(x:float32, y:float32, z:float32){
        this.x = x;
        this.y = y;
        this.z = z;
    }
}

Generic

class Foo<T> {
    value:T;
    constructor(value:T){
        this.value = value;
    }
    getValue():T {
        return this.value;
    }
}

export function testI32(value:int32):int32 {
    let instance = new Foo<int32>(value);
    return instance.getValue();
}

export function testI64(value:int32):int32 {
    let value2 = value as int64;
    let instance = new Foo<int64>(value2);
    return instance.getValue() as int32;
}

export function testF32(value:float32):float32 {
    let instance = new Foo<float32>(value);
    return instance.getValue();
}

export function testF64(value:float64):float64 {
    let instance = new Foo<float64>(value);
    return instance.getValue();
}

Operator overload

class Vector3D {
    x:float32;
    y:float32;
    z:float32;

    constructor(x:float32, y:float32, z:float32){
        this.x = x;
        this.y = y;
        this.z = z;
    }

    operator + (other:Vector3D):Vector3D {
        return new Vector3D(this.x + other.x, this.y + other.y, this.z + other.z);
    }

    operator - (other:Vector3D):Vector3D {
        return new Vector3D(this.x - other.x, this.y - other.y, this.z - other.z);
    }
}
export function test():boolean {
    let a = new Vector3D(1.0f,1.0f,1.0f);
    let b = new Vector3D(1.0f,1.0f,1.0f);
    let c = a + b;
    return c.x == 2.0f && c.y == 2.0f && c.z == 2.0f;
}

Array

// f64-array.tbs
var a: Array<float64> = null;

export function test(num:int32): Array<float64> {
    a = new Array<float64>(num);
    let i:int32 = 0;
    while (i < num) {
        a[i] = 0.0;
        i = i + 1;
    }
    return a;
}

export function getArrayByteLength(value:Array<float64>):int32 {
    return value.bytesLength;
}
export function getArrayElementSize(value:Array<float64>):int32 {
    return value.elementSize;
}

export function getArray(): Array<float64> {
    return a;
}
export function getData(index:int32):float64 {
    return a[index];
}
export function setData(index:int32, value:float64):void {
    a[index] = value;
}

Compile to wasm

tc add.tbs --wasm --out add.wasm

Join

You need an invitation to join Slack. Open a ticket with your email address. I will make it happen.

Roadmap

• Parallel JavaScript
• WebAssembly Emitter
• Basic malloc and free
• ASM.JS Emitter
• Import external functions with namespace
• Array Data Type
• Parallel WebAssembly (post-MVP)

Wiki

Documentations can be found at wiki (under construction 🚧)

Useful links

• Future WebHPC & Parallel Programming with JavaScript
• TurboScript playground
• Assembleash playground

Credit

Lexical analysis, Parsing, Checking codes are borrowed from Evan Wallace's thinscript

Now enjoy - Wow! this snail is fast