assemblyscript-typescript-loader

Loader for webpack to compile typescript with AssemblyScript and bundle it to wasm or btyes string

npm i assemblyscript-typescript-loader --save

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
            test: /\.ts?$/,
            loader: 'assemblyscript-typescript-loader',
            include:/assemblyscript/,//to avoid a conflict with other ts file who use 'ts-load',so you can division them with prop 'include'
            options: {
                limit: 1000,
                name: `static/assembly/[name].[hash:8].wasm`
            }
        }
    ]
  }
}

**assemblyscript/moduleEntry.ts**

```ts

var w: u32, // width
    h: u32, // height
    s: u32; // total size

/** Initializes width and height. */
export function init(w_: u32, h_: u32): void {
  w = w_;
  h = h_;
  s = w * h;
}

/** Performs one step. */
export function step(): void {
  var hm1 = h - 1,
      wm1 = w - 1;
  for (var y: u32 = 0; y < h; ++y) {
    var ym1 = select<u32>(hm1, y - 1, y == 0),
        yp1 = select<u32>(0, y + 1, y == hm1);
    for (var x: u32 = 0; x < w; ++x) {
      var xm1 = select<u32>(wm1, x - 1, x == 0),
          xp1 = select<u32>(0, x + 1, x == wm1);
      var n = (
        load<u8>(ym1 * w + xm1) + load<u8>(ym1 * w + x) + load<u8>(ym1 * w + xp1) +
        load<u8>(y   * w + xm1)                         + load<u8>(y   * w + xp1) +
        load<u8>(yp1 * w + xm1) + load<u8>(yp1 * w + x) + load<u8>(yp1 * w + xp1)
      );
      if (load<u8>(y * w + x)) {
        if (n < 2 || n > 3)
          store<u8>(s + y * w + x, 0);
      } else if (n == 3)
        store<u8>(s + y * w + x, 1);
    }
  }
}

file.js

import asmPromise from "./assemblyscript/moduleEntry.ts";
asmPromise().then(function(asmModule){
  // here you can use the wasm.exports
  asmModule.step();
})

|Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |name|{String\|Function}|[hash].[ext]|Configure a custom filename template for your file| |limit|{Int}|undefined|Byte limit to the wasm file,if the size is smaller then limit value ,the wasm will bundled into js ,or the wasm file will build into dist ,well runtime , bundled js will fetch it and return the Promise object; |publicPath|{String\|Function}|__webpack_public_path__ |Configure a custom public path for your file| |outputPath|{String\|Function}|'undefined'|Configure a custom output path for your file|

{name}

You can configure a custom filename template for your file using the query parameter name. For instance, to copy a file from your context directory into the output directory retaining the full directory structure, you might use

{String}

webpack.config.js

{
  loader: 'assemblyscript-typescript-loader',
  options: {
    name: '[path][name].wasm'
  }
}

{Function}

webpack.config.js

{
  loader: 'assemblyscript-typescript-loader',
  options: {
    name (file) {
      if (env === 'development') {
        return '[path][name].wasm'
      }
      return '[hash].wasm'
    }
  }
}

placeholders

|Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |[ext]|{String}|file.extname|The extension of the resource| |[name]|{String}|file.basename|The basename of the resource| |[path]|{String}|file.dirname|The path of the resource relative to the context| |[hash]|{String}|md5|The hash of the content, hashes below for more info| |[N]|{String}|``|The n-th match obtained from matching the current file name against the regExp|

hashes

[<hashType>:hash:<digestType>:<length>] optionally you can configure

|Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |hashType|{String}|md5|sha1, md5, sha256, sha512| |digestType|{String}|hex|hex, base26, base32, base36, base49, base52, base58, base62, base64| |length|{Number}|9999|The length in chars|

By default, the path and name you specify will output the file in that same directory and will also use that same URL path to access the file.

publicPath

webpack.config.js

{
  loader: 'assemblyscript-typescript-loader',
  options: {
    name: '[path][name].wasm',
    publicPath: 'assembly/'
  }
}

outputPath

webpack.config.js

{
  loader: 'assemblyscript-typescript-loader',
  options: {
    name: '[path][name].wasm',
    outputPath: 'assembly/'
  }
}