include wasm

.gitignore

@@ -2,7 +2,6 @@
 **/*.rs.bk
 Cargo.lock
 bin/
-wasm/
 wasm-pack.log
 **/node_modules
 **/.DS_Store

wasm/hello_wasm/README.md

@@ -0,0 +1,84 @@
+<div align="center">
+
+  <h1><code>wasm-pack-template</code></h1>
+
+  <strong>A template for kick starting a Rust and WebAssembly project using <a href="https://github.com/rustwasm/wasm-pack">wasm-pack</a>.</strong>
+
+  <p>
+    <a href="https://travis-ci.org/rustwasm/wasm-pack-template"><img src="https://img.shields.io/travis/rustwasm/wasm-pack-template.svg?style=flat-square" alt="Build Status" /></a>
+  </p>
+
+  <h3>
+    <a href="https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html">Tutorial</a>
+    <span> | </span>
+    <a href="https://discordapp.com/channels/442252698964721669/443151097398296587">Chat</a>
+  </h3>
+
+  <sub>Built with 🦀🕸 by <a href="https://rustwasm.github.io/">The Rust and WebAssembly Working Group</a></sub>
+</div>
+
+## About
+
+[**📚 Read this template tutorial! 📚**][template-docs]
+
+This template is designed for compiling Rust libraries into WebAssembly and
+publishing the resulting package to NPM.
+
+Be sure to check out [other `wasm-pack` tutorials online][tutorials] for other
+templates and usages of `wasm-pack`.
+
+[tutorials]: https://rustwasm.github.io/docs/wasm-pack/tutorials/index.html
+[template-docs]: https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html
+
+## 🚴 Usage
+
+### 🐑 Use `cargo generate` to Clone this Template
+
+[Learn more about `cargo generate` here.](https://github.com/ashleygwilliams/cargo-generate)
+
+```
+cargo generate --git https://github.com/rustwasm/wasm-pack-template.git --name my-project
+cd my-project
+```
+
+### 🛠️ Build with `wasm-pack build`
+
+```
+wasm-pack build
+```
+
+### 🔬 Test in Headless Browsers with `wasm-pack test`
+
+```
+wasm-pack test --headless --firefox
+```
+
+### 🎁 Publish to NPM with `wasm-pack publish`
+
+```
+wasm-pack publish
+```
+
+## 🔋 Batteries Included
+
+* [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) for communicating
+  between WebAssembly and JavaScript.
+* [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook)
+  for logging panic messages to the developer console.
+* `LICENSE-APACHE` and `LICENSE-MIT`: most Rust projects are licensed this way, so these are included for you
+
+## License
+
+Licensed under either of
+
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.

wasm/hello_wasm/hello_wasm.d.ts

@@ -0,0 +1,75 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+*/
+export function greet(): void;
+/**
+* @param {Int32Array} numbers
+* @returns {number}
+*/
+export function sum(numbers: Int32Array): number;
+/**
+* @param {number} num_threads
+* @returns {Promise<any>}
+*/
+export function initThreadPool(num_threads: number): Promise<any>;
+/**
+* @param {number} receiver
+*/
+export function wbg_rayon_start_worker(receiver: number): void;
+/**
+*/
+export class wbg_rayon_PoolBuilder {
+  free(): void;
+/**
+* @returns {number}
+*/
+  numThreads(): number;
+/**
+* @returns {number}
+*/
+  receiver(): number;
+/**
+*/
+  build(): void;
+}
+
+export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
+
+export interface InitOutput {
+  readonly sum: (a: number, b: number) => number;
+  readonly greet: () => void;
+  readonly __wbg_wbg_rayon_poolbuilder_free: (a: number) => void;
+  readonly wbg_rayon_poolbuilder_numThreads: (a: number) => number;
+  readonly wbg_rayon_poolbuilder_receiver: (a: number) => number;
+  readonly wbg_rayon_poolbuilder_build: (a: number) => void;
+  readonly initThreadPool: (a: number) => number;
+  readonly wbg_rayon_start_worker: (a: number) => void;
+  readonly memory: WebAssembly.Memory;
+  readonly __wbindgen_malloc: (a: number, b: number) => number;
+  readonly __wbindgen_thread_destroy: (a: number, b: number) => void;
+  readonly __wbindgen_start: () => void;
+}
+
+export type SyncInitInput = BufferSource | WebAssembly.Module;
+/**
+* Instantiates the given `module`, which can either be bytes or
+* a precompiled `WebAssembly.Module`.
+*
+* @param {SyncInitInput} module
+* @param {WebAssembly.Memory} maybe_memory
+*
+* @returns {InitOutput}
+*/
+export function initSync(module: SyncInitInput, maybe_memory?: WebAssembly.Memory): InitOutput;
+
+/**
+* If `module_or_path` is {RequestInfo} or {URL}, makes a request and
+* for everything else, calls `WebAssembly.instantiate` directly.
+*
+* @param {InitInput | Promise<InitInput>} module_or_path
+* @param {WebAssembly.Memory} maybe_memory
+*
+* @returns {Promise<InitOutput>}
+*/
+export default function __wbg_init (module_or_path?: InitInput | Promise<InitInput>, maybe_memory?: WebAssembly.Memory): Promise<InitOutput>;

wasm/hello_wasm/hello_wasm.js

@@ -0,0 +1,250 @@
+import { startWorkers } from './snippets/wasm-bindgen-rayon-7afa899f36665473/src/workerHelpers.js';
+
+let wasm;
+
+const cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );
+
+if (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };
+
+let cachedUint8Memory0 = null;
+
+function getUint8Memory0() {
+    if (cachedUint8Memory0 === null || cachedUint8Memory0.buffer !== wasm.memory.buffer) {
+        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachedUint8Memory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+    ptr = ptr >>> 0;
+    return cachedTextDecoder.decode(getUint8Memory0().slice(ptr, ptr + len));
+}
+
+const heap = new Array(128).fill(undefined);
+
+heap.push(undefined, null, true, false);
+
+let heap_next = heap.length;
+
+function addHeapObject(obj) {
+    if (heap_next === heap.length) heap.push(heap.length + 1);
+    const idx = heap_next;
+    heap_next = heap[idx];
+
+    heap[idx] = obj;
+    return idx;
+}
+/**
+*/
+export function greet() {
+    wasm.greet();
+}
+
+let cachedUint32Memory0 = null;
+
+function getUint32Memory0() {
+    if (cachedUint32Memory0 === null || cachedUint32Memory0.buffer !== wasm.memory.buffer) {
+        cachedUint32Memory0 = new Uint32Array(wasm.memory.buffer);
+    }
+    return cachedUint32Memory0;
+}
+
+let WASM_VECTOR_LEN = 0;
+
+function passArray32ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 4, 4) >>> 0;
+    getUint32Memory0().set(arg, ptr / 4);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+/**
+* @param {Int32Array} numbers
+* @returns {number}
+*/
+export function sum(numbers) {
+    const ptr0 = passArray32ToWasm0(numbers, wasm.__wbindgen_malloc);
+    const len0 = WASM_VECTOR_LEN;
+    const ret = wasm.sum(ptr0, len0);
+    return ret;
+}
+
+function getObject(idx) { return heap[idx]; }
+
+function dropObject(idx) {
+    if (idx < 132) return;
+    heap[idx] = heap_next;
+    heap_next = idx;
+}
+
+function takeObject(idx) {
+    const ret = getObject(idx);
+    dropObject(idx);
+    return ret;
+}
+/**
+* @param {number} num_threads
+* @returns {Promise<any>}
+*/
+export function initThreadPool(num_threads) {
+    const ret = wasm.initThreadPool(num_threads);
+    return takeObject(ret);
+}
+
+/**
+* @param {number} receiver
+*/
+export function wbg_rayon_start_worker(receiver) {
+    wasm.wbg_rayon_start_worker(receiver);
+}
+
+/**
+*/
+export class wbg_rayon_PoolBuilder {
+
+    static __wrap(ptr) {
+        ptr = ptr >>> 0;
+        const obj = Object.create(wbg_rayon_PoolBuilder.prototype);
+        obj.__wbg_ptr = ptr;
+
+        return obj;
+    }
+
+    __destroy_into_raw() {
+        const ptr = this.__wbg_ptr;
+        this.__wbg_ptr = 0;
+
+        return ptr;
+    }
+
+    free() {
+        const ptr = this.__destroy_into_raw();
+        wasm.__wbg_wbg_rayon_poolbuilder_free(ptr);
+    }
+    /**
+    * @returns {number}
+    */
+    numThreads() {
+        const ret = wasm.wbg_rayon_poolbuilder_numThreads(this.__wbg_ptr);
+        return ret >>> 0;
+    }
+    /**
+    * @returns {number}
+    */
+    receiver() {
+        const ret = wasm.wbg_rayon_poolbuilder_receiver(this.__wbg_ptr);
+        return ret;
+    }
+    /**
+    */
+    build() {
+        wasm.wbg_rayon_poolbuilder_build(this.__wbg_ptr);
+    }
+}
+
+async function __wbg_load(module, imports) {
+    if (typeof Response === 'function' && module instanceof Response) {
+        if (typeof WebAssembly.instantiateStreaming === 'function') {
+            try {
+                return await WebAssembly.instantiateStreaming(module, imports);
+
+            } catch (e) {
+                if (module.headers.get('Content-Type') != 'application/wasm') {
+                    console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);
+
+                } else {
+                    throw e;
+                }
+            }
+        }
+
+        const bytes = await module.arrayBuffer();
+        return await WebAssembly.instantiate(bytes, imports);
+
+    } else {
+        const instance = await WebAssembly.instantiate(module, imports);
+
+        if (instance instanceof WebAssembly.Instance) {
+            return { instance, module };
+
+        } else {
+            return instance;
+        }
+    }
+}
+
+function __wbg_get_imports() {
+    const imports = {};
+    imports.wbg = {};
+    imports.wbg.__wbg_alert_8755b7883b6ce0ef = function(arg0, arg1) {
+        alert(getStringFromWasm0(arg0, arg1));
+    };
+    imports.wbg.__wbindgen_throw = function(arg0, arg1) {
+        throw new Error(getStringFromWasm0(arg0, arg1));
+    };
+    imports.wbg.__wbindgen_module = function() {
+        const ret = __wbg_init.__wbindgen_wasm_module;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbindgen_memory = function() {
+        const ret = wasm.memory;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_startWorkers_6fd3af285ea11136 = function(arg0, arg1, arg2) {
+        const ret = startWorkers(takeObject(arg0), takeObject(arg1), wbg_rayon_PoolBuilder.__wrap(arg2));
+        return addHeapObject(ret);
+    };
+
+    return imports;
+}
+
+function __wbg_init_memory(imports, maybe_memory) {
+    imports.wbg.memory = maybe_memory || new WebAssembly.Memory({initial:18,maximum:16384,shared:true});
+}
+
+function __wbg_finalize_init(instance, module) {
+    wasm = instance.exports;
+    __wbg_init.__wbindgen_wasm_module = module;
+    cachedUint32Memory0 = null;
+    cachedUint8Memory0 = null;
+
+    wasm.__wbindgen_start();
+    return wasm;
+}
+
+function initSync(module, maybe_memory) {
+    if (wasm !== undefined) return wasm;
+
+    const imports = __wbg_get_imports();
+
+    __wbg_init_memory(imports, maybe_memory);
+
+    if (!(module instanceof WebAssembly.Module)) {
+        module = new WebAssembly.Module(module);
+    }
+
+    const instance = new WebAssembly.Instance(module, imports);
+
+    return __wbg_finalize_init(instance, module);
+}
+
+async function __wbg_init(input, maybe_memory) {
+    if (wasm !== undefined) return wasm;
+
+    if (typeof input === 'undefined') {
+        input = new URL('hello_wasm_bg.wasm', import.meta.url);
+    }
+    const imports = __wbg_get_imports();
+
+    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {
+        input = fetch(input);
+    }
+
+    __wbg_init_memory(imports, maybe_memory);
+
+    const { instance, module } = await __wbg_load(await input, imports);
+
+    return __wbg_finalize_init(instance, module);
+}
+
+export { initSync }
+export default __wbg_init;

wasm/hello_wasm/hello_wasm_bg.js

@@ -0,0 +1,35 @@
+let wasm;
+export function __wbg_set_wasm(val) {
+    wasm = val;
+}
+
+
+const lTextDecoder = typeof TextDecoder === 'undefined' ? (0, module.require)('util').TextDecoder : TextDecoder;
+
+let cachedTextDecoder = new lTextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+
+cachedTextDecoder.decode();
+
+let cachedUint8Memory0 = null;
+
+function getUint8Memory0() {
+    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {
+        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachedUint8Memory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+    ptr = ptr >>> 0;
+    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
+}
+/**
+*/
+export function greet() {
+    wasm.greet();
+}
+
+export function __wbg_alert_8755b7883b6ce0ef(arg0, arg1) {
+    alert(getStringFromWasm0(arg0, arg1));
+};
+

wasm/hello_wasm/hello_wasm_bg.wasm.d.ts

@@ -0,0 +1,14 @@
+/* tslint:disable */
+/* eslint-disable */
+export function sum(a: number, b: number): number;
+export function greet(): void;
+export function __wbg_wbg_rayon_poolbuilder_free(a: number): void;
+export function wbg_rayon_poolbuilder_numThreads(a: number): number;
+export function wbg_rayon_poolbuilder_receiver(a: number): number;
+export function wbg_rayon_poolbuilder_build(a: number): void;
+export function initThreadPool(a: number): number;
+export function wbg_rayon_start_worker(a: number): void;
+export const memory: WebAssembly.Memory;
+export function __wbindgen_malloc(a: number, b: number): number;
+export function __wbindgen_thread_destroy(a: number, b: number): void;
+export function __wbindgen_start(): void;

wasm/hello_wasm/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "hello-wasm",
+  "collaborators": [
+    "0xtsukino <0xtsukino@gmail.com>"
+  ],
+  "version": "0.1.0",
+  "files": [
+    "hello_wasm_bg.wasm",
+    "hello_wasm.js",
+    "hello_wasm.d.ts"
+  ],
+  "module": "hello_wasm.js",
+  "types": "hello_wasm.d.ts",
+  "sideEffects": [
+    "./snippets/*"
+  ]
+}

wasm/hello_wasm/snippets/wasm-bindgen-rayon-7afa899f36665473/src/workerHelpers.js

@@ -0,0 +1,104 @@
+/**
+ * Copyright 2021 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Note: we use `wasm_bindgen_worker_`-prefixed message types to make sure
+// we can handle bundling into other files, which might happen to have their
+// own `postMessage`/`onmessage` communication channels.
+//
+// If we didn't take that into the account, we could send much simpler signals
+// like just `0` or whatever, but the code would be less resilient.
+
+function waitForMsgType(target, type) {
+  return new Promise(resolve => {
+    target.addEventListener('message', function onMsg({ data }) {
+      if (data == null || data.type !== type) return;
+      target.removeEventListener('message', onMsg);
+      resolve(data);
+    });
+  });
+}
+
+waitForMsgType(self, 'wasm_bindgen_worker_init').then(async data => {
+  // # Note 1
+  // Our JS should have been generated in
+  // `[out-dir]/snippets/wasm-bindgen-rayon-[hash]/workerHelpers.js`,
+  // resolve the main module via `../../..`.
+  //
+  // This might need updating if the generated structure changes on wasm-bindgen
+  // side ever in the future, but works well with bundlers today. The whole
+  // point of this crate, after all, is to abstract away unstable features
+  // and temporary bugs so that you don't need to deal with them in your code.
+  //
+  // # Note 2
+  // This could be a regular import, but then some bundlers complain about
+  // circular deps.
+  //
+  // Dynamic import could be cheap if this file was inlined into the parent,
+  // which would require us just using `../../..` in `new Worker` below,
+  // but that doesn't work because wasm-pack unconditionally adds
+  // "sideEffects":false (see below).
+  //
+  // OTOH, even though it can't be inlined, it should be still reasonably
+  // cheap since the requested file is already in cache (it was loaded by
+  // the main thread).
+  const pkg = await import('../../..');
+  await pkg.default(data.module, data.memory);
+  postMessage({ type: 'wasm_bindgen_worker_ready' });
+  pkg.wbg_rayon_start_worker(data.receiver);
+});
+
+// Note: this is never used, but necessary to prevent a bug in Firefox
+// (https://bugzilla.mozilla.org/show_bug.cgi?id=1702191) where it collects
+// Web Workers that have a shared WebAssembly memory with the main thread,
+// but are not explicitly rooted via a `Worker` instance.
+//
+// By storing them in a variable, we can keep `Worker` objects around and
+// prevent them from getting GC-d.
+let _workers;
+
+export async function startWorkers(module, memory, builder) {
+  const workerInit = {
+    type: 'wasm_bindgen_worker_init',
+    module,
+    memory,
+    receiver: builder.receiver()
+  };
+
+  _workers = await Promise.all(
+    Array.from({ length: builder.numThreads() }, async () => {
+      // Self-spawn into a new Worker.
+      //
+      // TODO: while `new URL('...', import.meta.url) becomes a semi-standard
+      // way to get asset URLs relative to the module across various bundlers
+      // and browser, ideally we should switch to `import.meta.resolve`
+      // once it becomes a standard.
+      //
+      // Note: we could use `../../..` as the URL here to inline workerHelpers.js
+      // into the parent entry instead of creating another split point -
+      // this would be preferable from optimization perspective -
+      // however, Webpack then eliminates all message handler code
+      // because wasm-pack produces "sideEffects":false in package.json
+      // unconditionally.
+      //
+      // The only way to work around that is to have side effect code
+      // in an entry point such as Worker file itself.
+      const worker = new Worker(new URL('./workerHelpers.js', import.meta.url), {
+        type: 'module'
+      });
+      worker.postMessage(workerInit);
+      await waitForMsgType(worker, 'wasm_bindgen_worker_ready');
+      return worker;
+    })
+  );
+  builder.build();
+}