cancellazione modifiche dopo step before oauth

2026-06-16 21:43:24 +02:00
parent 6001c2e3b8
commit c333bbce4e
5770 changed files with 677814 additions and 16 deletions
@@ -0,0 +1,27 @@
+# Fix: tabella `google_o_auth_connections` mancante
+
+## Problema
+
+Migration `2026_06_15_000001_create_google_oauth_connections_table.php` segnata come "Ran" (batch 39) ma tabella fisica inesistente sul database MySQL/MariaDB. Causa 500 su GET `/impostazioni`.
+
+## Comandi (eseguire sul server `192.168.222.177`)
+
+```bash
+# 1. Creare la tabella mancante con la stessa definizione della migration
+php artisan tinker --execute="
+Schema::create('google_o_auth_connections', function (\Illuminate\Database\Schema\Blueprint \$table) {
+    \$table->id();
+    \$table->string('service', 20)->unique();
+    \$table->string('client_id', 255);
+    \$table->text('client_secret');
+    \$table->text('refresh_token');
+    \$table->timestamps();
+});
+"
+
+# 2. Pulire la cache delle viste (stale compiled view)
+php artisan view:clear
+
+# 3. Verificare che la tabella esista
+php artisan tinker --execute="echo Schema::hasTable('google_o_auth_connections') ? 'OK' : 'ERRORE';"
+```
@@ -0,0 +1,59 @@
+# Proxy Configuration — Glastree
+
+## Nginx Proxy Manager (Custom Nginx Configuration)
+
+Nella scheda **Advanced** del tuo proxy host:
+
+```nginx
+proxy_set_header Host $host;
+proxy_set_header X-Real-IP $remote_addr;
+proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+proxy_set_header X-Forwarded-Proto $scheme;
+proxy_set_header X-Forwarded-Host $host;
+proxy_set_header X-Forwarded-Port $server_port;
+```
+
+---
+
+## `.env` (App Laravel)
+
+```env
+APP_URL=https://glastree.soon.it
+APP_PROTOCOL=https
+FORCE_HTTPS=true
+TRUSTED_PROXIES=*
+```
+
+Dopo qualsiasi modifica:
+
+```bash
+php artisan config:clear
+```
+
+---
+
+## Google OAuth — Authorized Redirect URIs
+
+```
+https://glastree.soon.it/auth/google/callback
+```
+
+---
+
+## `bootstrap/app.php`
+
+```php
+$middleware->trustProxies(at: '*');
+```
+
+---
+
+## Schema richieste
+
+```
+Cliente (HTTPS)
+    ↓
+Nginx Proxy Manager (termina TLS, inoltra HTTP + X-Forwarded-Proto: https)
+    ↓
+App Laravel (vede richieste come HTTPS grazie a trustProxies(at:"*"))
+```
@@ -0,0 +1 @@
+../laravel-vite-plugin/bin/clean.js
@@ -0,0 +1 @@
+../concurrently/dist/bin/concurrently.js
@@ -0,0 +1 @@
+../concurrently/dist/bin/concurrently.js
@@ -0,0 +1 @@
+../jiti/lib/jiti-cli.mjs
@@ -0,0 +1 @@
+../nanoid/bin/nanoid.cjs
@@ -0,0 +1 @@
+../rolldown/bin/cli.mjs
@@ -0,0 +1 @@
+../tree-kill/cli.js
@@ -0,0 +1 @@
+../vite/bin/vite.js
@@ -0,0 +1,66 @@
+/* latin */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 400;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-400-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-400-normal.woff) format('woff'); 
+  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
+}
+
+/* latin-ext */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 400;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-400-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-400-normal.woff) format('woff'); 
+  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
+}
+
+/* latin */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 500;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-500-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-500-normal.woff) format('woff'); 
+  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
+}
+
+/* latin-ext */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 500;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-500-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-500-normal.woff) format('woff'); 
+  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
+}
+
+/* latin */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 600;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-600-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-600-normal.woff) format('woff'); 
+  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
+}
+
+/* latin-ext */
+@font-face {
+  font-family: 'Instrument Sans';
+  font-style: normal;
+  font-weight: 600;
+  font-stretch: 100%;
+  font-display: swap;
+  src: url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-600-normal.woff2) format('woff2'), url(https://fonts.bunny.net/instrument-sans/files/instrument-sans-latin-ext-600-normal.woff) format('woff'); 
+  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
+}
+
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+            }
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+                "picomatch": "^4.0.4",
+                "postcss": "^8.5.15",
+                "rolldown": "1.0.3",
+                "tinyglobby": "^0.2.17"
+            },
+            "bin": {
+                "vite": "bin/vite.js"
+            },
+            "engines": {
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+            },
+            "funding": {
+                "url": "https://github.com/vitejs/vite?sponsor=1"
+            },
+            "optionalDependencies": {
+                "fsevents": "~2.3.3"
+            },
+            "peerDependencies": {
+                "@types/node": "^20.19.0 || >=22.12.0",
+                "@vitejs/devtools": "^0.1.18",
+                "esbuild": "^0.27.0 || ^0.28.0",
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+                "less": "^4.0.0",
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+                },
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+                }
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+            }
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+            "dev": true,
+            "engines": {
+                "node": ">=8.6"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/jonschlinkert"
+            }
+        },
+        "node_modules/wrap-ansi": {
+            "version": "7.0.0",
+            "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
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+            "dev": true,
+            "dependencies": {
+                "ansi-styles": "^4.0.0",
+                "string-width": "^4.1.0",
+                "strip-ansi": "^6.0.0"
+            },
+            "engines": {
+                "node": ">=10"
+            },
+            "funding": {
+                "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+            }
+        },
+        "node_modules/y18n": {
+            "version": "5.0.8",
+            "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
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+            "dev": true,
+            "engines": {
+                "node": ">=10"
+            }
+        },
+        "node_modules/yargs": {
+            "version": "17.7.2",
+            "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
+            "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
+            "dev": true,
+            "dependencies": {
+                "cliui": "^8.0.1",
+                "escalade": "^3.1.1",
+                "get-caller-file": "^2.0.5",
+                "require-directory": "^2.1.1",
+                "string-width": "^4.2.3",
+                "y18n": "^5.0.5",
+                "yargs-parser": "^21.1.1"
+            },
+            "engines": {
+                "node": ">=12"
+            }
+        },
+        "node_modules/yargs-parser": {
+            "version": "21.1.1",
+            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+            "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
+            "dev": true,
+            "engines": {
+                "node": ">=12"
+            }
+        }
+    }
+}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021-present Toyobayashi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1 @@
+See [https://github.com/toyobayashi/emnapi](https://github.com/toyobayashi/emnapi)
@@ -0,0 +1,420 @@
+/// <reference types="node" />
+
+import type { Context } from '@emnapi/runtime';
+import type { ReferenceOwnership } from '@emnapi/runtime';
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare type BaseCreateOptions = {
+    filename?: string
+    nodeBinding?: NodeBinding
+    reuseWorker?: ThreadManagerOptionsMain['reuseWorker']
+    asyncWorkPoolSize?: number
+    waitThreadStart?: MainThreadBaseOptions['waitThreadStart']
+    onCreateWorker?: (info: CreateWorkerInfo) => any
+    print?: (str: string) => void
+    printErr?: (str: string) => void
+    postMessage?: (msg: any) => any
+}
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function createNapiModule (
+options: CreateOptions
+): NapiModule
+
+/** @public */
+export declare type CreateOptions = BaseCreateOptions & ({
+    context: Context
+    childThread?: boolean
+} | {
+    context?: Context
+    childThread: true
+})
+
+/** @public */
+export declare interface CreateWorkerInfo {
+    type: 'thread' | 'async-work'
+    name: string
+}
+
+/** @public */
+export declare interface InitOptions {
+    instance: WebAssembly.Instance
+    module: WebAssembly.Module
+    memory?: WebAssembly.Memory
+    table?: WebAssembly.Table
+}
+
+export declare type InputType = string | URL | Response | BufferSource | WebAssembly.Module;
+
+/** @public */
+export declare interface InstantiatedSource extends LoadedSource {
+    napiModule: NapiModule;
+}
+
+/** @public */
+export declare function instantiateNapiModule(
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options: InstantiateOptions): Promise<InstantiatedSource>;
+
+/** @public */
+export declare function instantiateNapiModuleSync(wasmInput: BufferSource | WebAssembly.Module, options: InstantiateOptions): InstantiatedSource;
+
+/** @public */
+export declare type InstantiateOptions = CreateOptions & LoadOptions;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadedSource extends WebAssembly.WebAssemblyInstantiatedSource {
+    usedInstance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare function loadNapiModule(napiModule: NapiModule, 
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options?: LoadOptions): Promise<LoadedSource>;
+
+/** @public */
+export declare function loadNapiModuleSync(napiModule: NapiModule, wasmInput: BufferSource | WebAssembly.Module, options?: LoadOptions): LoadedSource;
+
+/** @public */
+export declare interface LoadOptions {
+    wasi?: WASIInstance;
+    overwriteImports?: (importObject: WebAssembly.Imports) => WebAssembly.Imports;
+    beforeInit?: (source: WebAssembly.WebAssemblyInstantiatedSource) => void;
+    getMemory?: (exports: WebAssembly.Exports) => WebAssembly.Memory;
+    getTable?: (exports: WebAssembly.Exports) => WebAssembly.Table;
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare class MessageHandler extends ThreadMessageHandler {
+    napiModule: NapiModule | undefined;
+    constructor(options: MessageHandlerOptions);
+    instantiate(data: LoadPayload): InstantiatedSource | PromiseLike<InstantiatedSource>;
+    handle(e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare interface MessageHandlerOptions extends ThreadMessageHandlerOptions {
+    onLoad: (data: LoadPayload) => InstantiatedSource | PromiseLike<InstantiatedSource>;
+}
+
+/** @public */
+export declare interface NapiModule {
+    imports: {
+        env: any
+        napi: any
+        emnapi: any
+    }
+    exports: any
+    loaded: boolean
+    filename: string
+    childThread: boolean
+    emnapi: {
+        syncMemory<T extends ArrayBuffer | ArrayBufferView> (
+        js_to_wasm: boolean,
+        arrayBufferOrView: T,
+        offset?: number,
+        len?: number
+        ): T
+        getMemoryAddress (arrayBufferOrView: ArrayBuffer | ArrayBufferView): PointerInfo
+        addSendListener (worker: any): boolean
+    }
+
+    init (options: InitOptions): any
+    initWorker (arg: number, func: [number, number]): void
+    postMessage?: (msg: any) => any
+
+    waitThreadStart: boolean | number
+    /* Excluded from this release type: PThread */}
+
+/** @public */
+export declare interface NodeBinding {
+    node: {
+        emitAsyncInit: Function
+        emitAsyncDestroy: Function
+        makeCallback: Function
+    }
+    napi: {
+        asyncInit: Function
+        asyncDestroy: Function
+        makeCallback: Function
+    }
+}
+
+/** @public */
+export declare interface PointerInfo {
+    address: number
+    ownership: ReferenceOwnership
+    runtimeAllocated: 0 | 1
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+export declare const version: string;
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,420 @@
+/// <reference types="node" />
+
+import type { Context } from '@emnapi/runtime';
+import type { ReferenceOwnership } from '@emnapi/runtime';
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare type BaseCreateOptions = {
+    filename?: string
+    nodeBinding?: NodeBinding
+    reuseWorker?: ThreadManagerOptionsMain['reuseWorker']
+    asyncWorkPoolSize?: number
+    waitThreadStart?: MainThreadBaseOptions['waitThreadStart']
+    onCreateWorker?: (info: CreateWorkerInfo) => any
+    print?: (str: string) => void
+    printErr?: (str: string) => void
+    postMessage?: (msg: any) => any
+}
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function createNapiModule (
+options: CreateOptions
+): NapiModule
+
+/** @public */
+export declare type CreateOptions = BaseCreateOptions & ({
+    context: Context
+    childThread?: boolean
+} | {
+    context?: Context
+    childThread: true
+})
+
+/** @public */
+export declare interface CreateWorkerInfo {
+    type: 'thread' | 'async-work'
+    name: string
+}
+
+/** @public */
+export declare interface InitOptions {
+    instance: WebAssembly.Instance
+    module: WebAssembly.Module
+    memory?: WebAssembly.Memory
+    table?: WebAssembly.Table
+}
+
+export declare type InputType = string | URL | Response | BufferSource | WebAssembly.Module;
+
+/** @public */
+export declare interface InstantiatedSource extends LoadedSource {
+    napiModule: NapiModule;
+}
+
+/** @public */
+export declare function instantiateNapiModule(
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options: InstantiateOptions): Promise<InstantiatedSource>;
+
+/** @public */
+export declare function instantiateNapiModuleSync(wasmInput: BufferSource | WebAssembly.Module, options: InstantiateOptions): InstantiatedSource;
+
+/** @public */
+export declare type InstantiateOptions = CreateOptions & LoadOptions;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadedSource extends WebAssembly.WebAssemblyInstantiatedSource {
+    usedInstance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare function loadNapiModule(napiModule: NapiModule, 
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options?: LoadOptions): Promise<LoadedSource>;
+
+/** @public */
+export declare function loadNapiModuleSync(napiModule: NapiModule, wasmInput: BufferSource | WebAssembly.Module, options?: LoadOptions): LoadedSource;
+
+/** @public */
+export declare interface LoadOptions {
+    wasi?: WASIInstance;
+    overwriteImports?: (importObject: WebAssembly.Imports) => WebAssembly.Imports;
+    beforeInit?: (source: WebAssembly.WebAssemblyInstantiatedSource) => void;
+    getMemory?: (exports: WebAssembly.Exports) => WebAssembly.Memory;
+    getTable?: (exports: WebAssembly.Exports) => WebAssembly.Table;
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare class MessageHandler extends ThreadMessageHandler {
+    napiModule: NapiModule | undefined;
+    constructor(options: MessageHandlerOptions);
+    instantiate(data: LoadPayload): InstantiatedSource | PromiseLike<InstantiatedSource>;
+    handle(e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare interface MessageHandlerOptions extends ThreadMessageHandlerOptions {
+    onLoad: (data: LoadPayload) => InstantiatedSource | PromiseLike<InstantiatedSource>;
+}
+
+/** @public */
+export declare interface NapiModule {
+    imports: {
+        env: any
+        napi: any
+        emnapi: any
+    }
+    exports: any
+    loaded: boolean
+    filename: string
+    childThread: boolean
+    emnapi: {
+        syncMemory<T extends ArrayBuffer | ArrayBufferView> (
+        js_to_wasm: boolean,
+        arrayBufferOrView: T,
+        offset?: number,
+        len?: number
+        ): T
+        getMemoryAddress (arrayBufferOrView: ArrayBuffer | ArrayBufferView): PointerInfo
+        addSendListener (worker: any): boolean
+    }
+
+    init (options: InitOptions): any
+    initWorker (arg: number, func: [number, number]): void
+    postMessage?: (msg: any) => any
+
+    waitThreadStart: boolean | number
+    /* Excluded from this release type: PThread */}
+
+/** @public */
+export declare interface NodeBinding {
+    node: {
+        emitAsyncInit: Function
+        emitAsyncDestroy: Function
+        makeCallback: Function
+    }
+    napi: {
+        asyncInit: Function
+        asyncDestroy: Function
+        makeCallback: Function
+    }
+}
+
+/** @public */
+export declare interface PointerInfo {
+    address: number
+    ownership: ReferenceOwnership
+    runtimeAllocated: 0 | 1
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+export declare const version: string;
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,422 @@
+/// <reference types="node" />
+
+import type { Context } from '@emnapi/runtime';
+import type { ReferenceOwnership } from '@emnapi/runtime';
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare type BaseCreateOptions = {
+    filename?: string
+    nodeBinding?: NodeBinding
+    reuseWorker?: ThreadManagerOptionsMain['reuseWorker']
+    asyncWorkPoolSize?: number
+    waitThreadStart?: MainThreadBaseOptions['waitThreadStart']
+    onCreateWorker?: (info: CreateWorkerInfo) => any
+    print?: (str: string) => void
+    printErr?: (str: string) => void
+    postMessage?: (msg: any) => any
+}
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function createNapiModule (
+options: CreateOptions
+): NapiModule
+
+/** @public */
+export declare type CreateOptions = BaseCreateOptions & ({
+    context: Context
+    childThread?: boolean
+} | {
+    context?: Context
+    childThread: true
+})
+
+/** @public */
+export declare interface CreateWorkerInfo {
+    type: 'thread' | 'async-work'
+    name: string
+}
+
+/** @public */
+export declare interface InitOptions {
+    instance: WebAssembly.Instance
+    module: WebAssembly.Module
+    memory?: WebAssembly.Memory
+    table?: WebAssembly.Table
+}
+
+export declare type InputType = string | URL | Response | BufferSource | WebAssembly.Module;
+
+/** @public */
+export declare interface InstantiatedSource extends LoadedSource {
+    napiModule: NapiModule;
+}
+
+/** @public */
+export declare function instantiateNapiModule(
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options: InstantiateOptions): Promise<InstantiatedSource>;
+
+/** @public */
+export declare function instantiateNapiModuleSync(wasmInput: BufferSource | WebAssembly.Module, options: InstantiateOptions): InstantiatedSource;
+
+/** @public */
+export declare type InstantiateOptions = CreateOptions & LoadOptions;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadedSource extends WebAssembly.WebAssemblyInstantiatedSource {
+    usedInstance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare function loadNapiModule(napiModule: NapiModule, 
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options?: LoadOptions): Promise<LoadedSource>;
+
+/** @public */
+export declare function loadNapiModuleSync(napiModule: NapiModule, wasmInput: BufferSource | WebAssembly.Module, options?: LoadOptions): LoadedSource;
+
+/** @public */
+export declare interface LoadOptions {
+    wasi?: WASIInstance;
+    overwriteImports?: (importObject: WebAssembly.Imports) => WebAssembly.Imports;
+    beforeInit?: (source: WebAssembly.WebAssemblyInstantiatedSource) => void;
+    getMemory?: (exports: WebAssembly.Exports) => WebAssembly.Memory;
+    getTable?: (exports: WebAssembly.Exports) => WebAssembly.Table;
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare class MessageHandler extends ThreadMessageHandler {
+    napiModule: NapiModule | undefined;
+    constructor(options: MessageHandlerOptions);
+    instantiate(data: LoadPayload): InstantiatedSource | PromiseLike<InstantiatedSource>;
+    handle(e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare interface MessageHandlerOptions extends ThreadMessageHandlerOptions {
+    onLoad: (data: LoadPayload) => InstantiatedSource | PromiseLike<InstantiatedSource>;
+}
+
+/** @public */
+export declare interface NapiModule {
+    imports: {
+        env: any
+        napi: any
+        emnapi: any
+    }
+    exports: any
+    loaded: boolean
+    filename: string
+    childThread: boolean
+    emnapi: {
+        syncMemory<T extends ArrayBuffer | ArrayBufferView> (
+        js_to_wasm: boolean,
+        arrayBufferOrView: T,
+        offset?: number,
+        len?: number
+        ): T
+        getMemoryAddress (arrayBufferOrView: ArrayBuffer | ArrayBufferView): PointerInfo
+        addSendListener (worker: any): boolean
+    }
+
+    init (options: InitOptions): any
+    initWorker (arg: number, func: [number, number]): void
+    postMessage?: (msg: any) => any
+
+    waitThreadStart: boolean | number
+    /* Excluded from this release type: PThread */}
+
+/** @public */
+export declare interface NodeBinding {
+    node: {
+        emitAsyncInit: Function
+        emitAsyncDestroy: Function
+        makeCallback: Function
+    }
+    napi: {
+        asyncInit: Function
+        asyncDestroy: Function
+        makeCallback: Function
+    }
+}
+
+/** @public */
+export declare interface PointerInfo {
+    address: number
+    ownership: ReferenceOwnership
+    runtimeAllocated: 0 | 1
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+export declare const version: string;
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
+
+export as namespace emnapiCore;
@@ -0,0 +1,420 @@
+/// <reference types="node" />
+
+import type { Context } from '@emnapi/runtime';
+import type { ReferenceOwnership } from '@emnapi/runtime';
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare type BaseCreateOptions = {
+    filename?: string
+    nodeBinding?: NodeBinding
+    reuseWorker?: ThreadManagerOptionsMain['reuseWorker']
+    asyncWorkPoolSize?: number
+    waitThreadStart?: MainThreadBaseOptions['waitThreadStart']
+    onCreateWorker?: (info: CreateWorkerInfo) => any
+    print?: (str: string) => void
+    printErr?: (str: string) => void
+    postMessage?: (msg: any) => any
+}
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function createNapiModule (
+options: CreateOptions
+): NapiModule
+
+/** @public */
+export declare type CreateOptions = BaseCreateOptions & ({
+    context: Context
+    childThread?: boolean
+} | {
+    context?: Context
+    childThread: true
+})
+
+/** @public */
+export declare interface CreateWorkerInfo {
+    type: 'thread' | 'async-work'
+    name: string
+}
+
+/** @public */
+export declare interface InitOptions {
+    instance: WebAssembly.Instance
+    module: WebAssembly.Module
+    memory?: WebAssembly.Memory
+    table?: WebAssembly.Table
+}
+
+export declare type InputType = string | URL | Response | BufferSource | WebAssembly.Module;
+
+/** @public */
+export declare interface InstantiatedSource extends LoadedSource {
+    napiModule: NapiModule;
+}
+
+/** @public */
+export declare function instantiateNapiModule(
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options: InstantiateOptions): Promise<InstantiatedSource>;
+
+/** @public */
+export declare function instantiateNapiModuleSync(wasmInput: BufferSource | WebAssembly.Module, options: InstantiateOptions): InstantiatedSource;
+
+/** @public */
+export declare type InstantiateOptions = CreateOptions & LoadOptions;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadedSource extends WebAssembly.WebAssemblyInstantiatedSource {
+    usedInstance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare function loadNapiModule(napiModule: NapiModule, 
+/** Only support `BufferSource` or `WebAssembly.Module` on Node.js */
+wasmInput: InputType | Promise<InputType>, options?: LoadOptions): Promise<LoadedSource>;
+
+/** @public */
+export declare function loadNapiModuleSync(napiModule: NapiModule, wasmInput: BufferSource | WebAssembly.Module, options?: LoadOptions): LoadedSource;
+
+/** @public */
+export declare interface LoadOptions {
+    wasi?: WASIInstance;
+    overwriteImports?: (importObject: WebAssembly.Imports) => WebAssembly.Imports;
+    beforeInit?: (source: WebAssembly.WebAssemblyInstantiatedSource) => void;
+    getMemory?: (exports: WebAssembly.Exports) => WebAssembly.Memory;
+    getTable?: (exports: WebAssembly.Exports) => WebAssembly.Table;
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare class MessageHandler extends ThreadMessageHandler {
+    napiModule: NapiModule | undefined;
+    constructor(options: MessageHandlerOptions);
+    instantiate(data: LoadPayload): InstantiatedSource | PromiseLike<InstantiatedSource>;
+    handle(e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare interface MessageHandlerOptions extends ThreadMessageHandlerOptions {
+    onLoad: (data: LoadPayload) => InstantiatedSource | PromiseLike<InstantiatedSource>;
+}
+
+/** @public */
+export declare interface NapiModule {
+    imports: {
+        env: any
+        napi: any
+        emnapi: any
+    }
+    exports: any
+    loaded: boolean
+    filename: string
+    childThread: boolean
+    emnapi: {
+        syncMemory<T extends ArrayBuffer | ArrayBufferView> (
+        js_to_wasm: boolean,
+        arrayBufferOrView: T,
+        offset?: number,
+        len?: number
+        ): T
+        getMemoryAddress (arrayBufferOrView: ArrayBuffer | ArrayBufferView): PointerInfo
+        addSendListener (worker: any): boolean
+    }
+
+    init (options: InitOptions): any
+    initWorker (arg: number, func: [number, number]): void
+    postMessage?: (msg: any) => any
+
+    waitThreadStart: boolean | number
+    /* Excluded from this release type: PThread */}
+
+/** @public */
+export declare interface NodeBinding {
+    node: {
+        emitAsyncInit: Function
+        emitAsyncDestroy: Function
+        makeCallback: Function
+    }
+    napi: {
+        asyncInit: Function
+        asyncDestroy: Function
+        makeCallback: Function
+    }
+}
+
+/** @public */
+export declare interface PointerInfo {
+    address: number
+    ownership: ReferenceOwnership
+    runtimeAllocated: 0 | 1
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+export declare const version: string;
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,5 @@
+if (typeof process !== 'undefined' && process.env.NODE_ENV === 'production') {
+  module.exports = require('./dist/emnapi-core.cjs.min.js')
+} else {
+  module.exports = require('./dist/emnapi-core.cjs.js')
+}
@@ -0,0 +1,49 @@
+{
+  "name": "@emnapi/core",
+  "version": "1.10.0",
+  "description": "emnapi core",
+  "main": "index.js",
+  "module": "./dist/emnapi-core.esm-bundler.js",
+  "types": "./dist/emnapi-core.d.ts",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "types": {
+        "module": "./dist/emnapi-core.d.ts",
+        "import": "./dist/emnapi-core.d.mts",
+        "default": "./dist/emnapi-core.d.ts"
+      },
+      "module": "./dist/emnapi-core.esm-bundler.js",
+      "import": "./dist/emnapi-core.mjs",
+      "default": "./index.js"
+    },
+    "./dist/emnapi-core.cjs.min": {
+      "types": "./dist/emnapi-core.d.ts",
+      "default": "./dist/emnapi-core.cjs.min.js"
+    },
+    "./dist/emnapi-core.min.mjs": {
+      "types": "./dist/emnapi-core.d.mts",
+      "default": "./dist/emnapi-core.min.mjs"
+    }
+  },
+  "dependencies": {
+    "@emnapi/wasi-threads": "1.2.1",
+    "tslib": "^2.4.0"
+  },
+  "scripts": {
+    "build": "node ./script/build.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/toyobayashi/emnapi.git"
+  },
+  "author": "toyobayashi",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/toyobayashi/emnapi/issues"
+  },
+  "homepage": "https://github.com/toyobayashi/emnapi#readme",
+  "publishConfig": {
+    "access": "public"
+  }
+}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021-present Toyobayashi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1 @@
+See [https://github.com/toyobayashi/emnapi](https://github.com/toyobayashi/emnapi)
@@ -0,0 +1,671 @@
+export declare type Ptr = number | bigint
+
+export declare interface IBuffer extends Uint8Array {}
+export declare interface BufferCtor {
+  readonly prototype: IBuffer
+  /** @deprecated */
+  new (...args: any[]): IBuffer
+  from: {
+    (buffer: ArrayBufferLike): IBuffer
+    (buffer: ArrayBufferLike, byteOffset: number, length: number): IBuffer
+  }
+  alloc: (size: number) => IBuffer
+  isBuffer: (obj: unknown) => obj is IBuffer
+}
+
+export declare const enum GlobalHandle {
+  UNDEFINED = 1,
+  NULL,
+  FALSE,
+  TRUE,
+  GLOBAL
+}
+
+export declare const enum Version {
+  NODE_API_SUPPORTED_VERSION_MIN = 1,
+  NODE_API_DEFAULT_MODULE_API_VERSION = 8,
+  NODE_API_SUPPORTED_VERSION_MAX = 10,
+  NAPI_VERSION_EXPERIMENTAL = 2147483647 // INT_MAX
+}
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type Pointer<T> = number
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type PointerPointer<T> = number
+export declare type FunctionPointer<T extends (...args: any[]) => any> = Pointer<T>
+export declare type Const<T> = T
+
+export declare type void_p = Pointer<void>
+export declare type void_pp = Pointer<void_p>
+export declare type bool = number
+export declare type char = number
+export declare type char_p = Pointer<char>
+export declare type unsigned_char = number
+export declare type const_char = Const<char>
+export declare type const_char_p = Pointer<const_char>
+export declare type char16_t_p = number
+export declare type const_char16_t_p = number
+
+export declare type short = number
+export declare type unsigned_short = number
+export declare type int = number
+export declare type unsigned_int = number
+export declare type long = number
+export declare type unsigned_long = number
+export declare type long_long = bigint
+export declare type unsigned_long_long = bigint
+export declare type float = number
+export declare type double = number
+export declare type long_double = number
+export declare type size_t = number
+
+export declare type int8_t = number
+export declare type uint8_t = number
+export declare type int16_t = number
+export declare type uint16_t = number
+export declare type int32_t = number
+export declare type uint32_t = number
+export declare type int64_t = bigint
+export declare type uint64_t = bigint
+export declare type napi_env = Pointer<unknown>
+
+export declare type napi_value = Pointer<unknown>
+export declare type napi_ref = Pointer<unknown>
+export declare type napi_deferred = Pointer<unknown>
+export declare type napi_handle_scope = Pointer<unknown>
+export declare type napi_escapable_handle_scope = Pointer<unknown>
+
+export declare type napi_addon_register_func = FunctionPointer<(env: napi_env, exports: napi_value) => napi_value>
+
+export declare type napi_callback_info = Pointer<unknown>
+export declare type napi_callback = FunctionPointer<(env: napi_env, info: napi_callback_info) => napi_value>
+
+export declare interface napi_extended_error_info {
+  error_message: const_char_p
+  engine_reserved: void_p
+  engine_error_code: uint32_t
+  error_code: napi_status
+}
+
+export declare interface napi_property_descriptor {
+  // One of utf8name or name should be NULL.
+  utf8name: const_char_p
+  name: napi_value
+
+  method: napi_callback
+  getter: napi_callback
+  setter: napi_callback
+  value: napi_value
+  /* napi_property_attributes */
+  attributes: number
+  data: void_p
+}
+
+export declare type napi_finalize = FunctionPointer<(
+  env: napi_env,
+  finalize_data: void_p,
+  finalize_hint: void_p
+) => void>
+
+export declare interface node_module {
+  nm_version: int32_t
+  nm_flags: uint32_t
+  nm_filename: Pointer<const_char>
+  nm_register_func: napi_addon_register_func
+  nm_modname: Pointer<const_char>
+  nm_priv: Pointer<void>
+  reserved: PointerPointer<void>
+}
+
+export declare interface napi_node_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+  release: const_char_p
+}
+
+export declare interface emnapi_emscripten_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+}
+
+export declare const enum napi_status {
+  napi_ok,
+  napi_invalid_arg,
+  napi_object_expected,
+  napi_string_expected,
+  napi_name_expected,
+  napi_function_expected,
+  napi_number_expected,
+  napi_boolean_expected,
+  napi_array_expected,
+  napi_generic_failure,
+  napi_pending_exception,
+  napi_cancelled,
+  napi_escape_called_twice,
+  napi_handle_scope_mismatch,
+  napi_callback_scope_mismatch,
+  napi_queue_full,
+  napi_closing,
+  napi_bigint_expected,
+  napi_date_expected,
+  napi_arraybuffer_expected,
+  napi_detachable_arraybuffer_expected,
+  napi_would_deadlock, // unused
+  napi_no_external_buffers_allowed,
+  napi_cannot_run_js
+}
+
+export declare const enum napi_property_attributes {
+  napi_default = 0,
+  napi_writable = 1 << 0,
+  napi_enumerable = 1 << 1,
+  napi_configurable = 1 << 2,
+
+  // Used with napi_define_class to distinguish static properties
+  // from instance properties. Ignored by napi_define_properties.
+  napi_static = 1 << 10,
+
+  /// #ifdef NAPI_EXPERIMENTAL
+  // Default for class methods.
+  napi_default_method = napi_writable | napi_configurable,
+
+  // Default for object properties, like in JS obj[prop].
+  napi_default_jsproperty = napi_writable | napi_enumerable | napi_configurable
+  /// #endif  // NAPI_EXPERIMENTAL
+}
+
+export declare const enum napi_valuetype {
+  napi_undefined,
+  napi_null,
+  napi_boolean,
+  napi_number,
+  napi_string,
+  napi_symbol,
+  napi_object,
+  napi_function,
+  napi_external,
+  napi_bigint
+}
+
+export declare const enum napi_typedarray_type {
+  napi_int8_array,
+  napi_uint8_array,
+  napi_uint8_clamped_array,
+  napi_int16_array,
+  napi_uint16_array,
+  napi_int32_array,
+  napi_uint32_array,
+  napi_float32_array,
+  napi_float64_array,
+  napi_bigint64_array,
+  napi_biguint64_array,
+  napi_float16_array,
+}
+
+export declare const enum napi_key_collection_mode {
+  napi_key_include_prototypes,
+  napi_key_own_only
+}
+
+export declare const enum napi_key_filter {
+  napi_key_all_properties = 0,
+  napi_key_writable = 1,
+  napi_key_enumerable = 1 << 1,
+  napi_key_configurable = 1 << 2,
+  napi_key_skip_strings = 1 << 3,
+  napi_key_skip_symbols = 1 << 4
+}
+
+export declare const enum napi_key_conversion {
+  napi_key_keep_numbers,
+  napi_key_numbers_to_strings
+}
+
+export declare const enum emnapi_memory_view_type {
+  emnapi_int8_array,
+  emnapi_uint8_array,
+  emnapi_uint8_clamped_array,
+  emnapi_int16_array,
+  emnapi_uint16_array,
+  emnapi_int32_array,
+  emnapi_uint32_array,
+  emnapi_float32_array,
+  emnapi_float64_array,
+  emnapi_bigint64_array,
+  emnapi_biguint64_array,
+  emnapi_float16_array,
+  emnapi_data_view = -1,
+  emnapi_buffer = -2
+}
+
+export declare const enum napi_threadsafe_function_call_mode {
+  napi_tsfn_nonblocking,
+  napi_tsfn_blocking
+}
+
+export declare const enum napi_threadsafe_function_release_mode {
+  napi_tsfn_release,
+  napi_tsfn_abort
+}
+export declare type CleanupHookCallbackFunction = number | ((arg: number) => void);
+
+export declare class ConstHandle<S extends undefined | null | boolean | typeof globalThis> extends Handle<S> {
+    constructor(id: number, value: S);
+    dispose(): void;
+}
+
+export declare class Context {
+    private _isStopping;
+    private _canCallIntoJs;
+    private _suppressDestroy;
+    envStore: Store<Env>;
+    scopeStore: ScopeStore;
+    refStore: Store<Reference>;
+    deferredStore: Store<Deferred<any>>;
+    handleStore: HandleStore;
+    private readonly refCounter?;
+    private readonly cleanupQueue;
+    private readonly _externalMemory;
+    feature: {
+        supportReflect: boolean;
+        supportFinalizer: boolean;
+        supportWeakSymbol: boolean;
+        supportBigInt: boolean;
+        supportNewFunction: boolean;
+        canSetFunctionName: boolean;
+        setImmediate: (callback: () => void) => void;
+        Buffer: BufferCtor | undefined;
+        MessageChannel: {
+            new (): MessageChannel;
+            prototype: MessageChannel;
+        } | undefined;
+    };
+    constructor(options?: ContextOptions);
+    /**
+     * Suppress the destroy on `beforeExit` event in Node.js.
+     * Call this method if you want to keep the context and
+     * all associated {@link Env | Env} alive,
+     * this also means that cleanup hooks will not be called.
+     * After call this method, you should call
+     * {@link Context.destroy | `Context.prototype.destroy`} method manually.
+     */
+    suppressDestroy(): void;
+    getRuntimeVersions(): {
+        version: string;
+        NODE_API_SUPPORTED_VERSION_MAX: Version;
+        NAPI_VERSION_EXPERIMENTAL: Version;
+        NODE_API_DEFAULT_MODULE_API_VERSION: Version;
+    };
+    createNotSupportWeakRefError(api: string, message: string): NotSupportWeakRefError;
+    createNotSupportBufferError(api: string, message: string): NotSupportBufferError;
+    createReference(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership): Reference;
+    createReferenceWithData(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): Reference;
+    createReferenceWithFinalizer(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback?: napi_finalize, finalize_data?: void_p, finalize_hint?: void_p): Reference;
+    createDeferred<T = any>(value: IDeferrdValue<T>): Deferred<T>;
+    adjustAmountOfExternalAllocatedMemory(changeInBytes: number | bigint): bigint;
+    createEnv(filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any): Env;
+    createTrackedFinalizer(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    getCurrentScope(): HandleScope | null;
+    addToCurrentScope<V>(value: V): Handle<V>;
+    openScope(envObject?: Env): HandleScope;
+    closeScope(envObject?: Env, _scope?: HandleScope): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    addCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    removeCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    runCleanup(): void;
+    increaseWaitingRequestCounter(): void;
+    decreaseWaitingRequestCounter(): void;
+    setCanCallIntoJs(value: boolean): void;
+    setStopping(value: boolean): void;
+    canCallIntoJs(): boolean;
+    /**
+     * Destroy the context and call cleanup hooks.
+     * Associated {@link Env | Env} will be destroyed.
+     */
+    destroy(): void;
+}
+
+export declare interface ContextOptions {
+    onExternalMemoryChange?: (current: bigint, old: bigint, delta: bigint) => any;
+}
+
+export declare function createContext(options?: ContextOptions): Context;
+
+export declare class Deferred<T = any> implements IStoreValue {
+    static create<T = any>(ctx: Context, value: IDeferrdValue<T>): Deferred;
+    id: number;
+    ctx: Context;
+    value: IDeferrdValue<T>;
+    constructor(ctx: Context, value: IDeferrdValue<T>);
+    resolve(value: T): void;
+    reject(reason?: any): void;
+    dispose(): void;
+}
+
+export declare class EmnapiError extends Error {
+    constructor(message?: string);
+}
+
+export declare abstract class Env implements IStoreValue {
+    readonly ctx: Context;
+    moduleApiVersion: number;
+    makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void;
+    makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void;
+    abort: (msg?: string) => never;
+    id: number;
+    openHandleScopes: number;
+    instanceData: TrackedFinalizer | null;
+    tryCatch: TryCatch;
+    refs: number;
+    reflist: RefTracker;
+    finalizing_reflist: RefTracker;
+    pendingFinalizers: RefTracker[];
+    lastError: {
+        errorCode: napi_status;
+        engineErrorCode: number;
+        engineReserved: Ptr;
+    };
+    inGcFinalizer: boolean;
+    constructor(ctx: Context, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never);
+    /** @virtual */
+    canCallIntoJs(): boolean;
+    terminatedOrTerminating(): boolean;
+    ref(): void;
+    unref(): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    ensureHandleId(value: any): napi_value;
+    clearLastError(): napi_status;
+    setLastError(error_code: napi_status, engine_error_code?: uint32_t, engine_reserved?: void_p): napi_status;
+    getReturnStatus(): napi_status;
+    callIntoModule<T>(fn: (env: Env) => T, handleException?: (envObject: Env, value: any) => void): T;
+    /** @virtual */
+    abstract callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    invokeFinalizerFromGC(finalizer: RefTracker): void;
+    checkGCAccess(): void;
+    /** @virtual */
+    enqueueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    dequeueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    deleteMe(): void;
+    dispose(): void;
+    private readonly _bindingMap;
+    initObjectBinding<S extends object>(value: S): IReferenceBinding;
+    getObjectBinding<S extends object>(value: S): IReferenceBinding;
+    setInstanceData(data: number, finalize_cb: number, finalize_hint: number): void;
+    getInstanceData(): number;
+}
+
+/** @public */
+declare interface External_2 extends Record<any, any> {
+}
+
+/** @public */
+declare const External_2: {
+    new (value: number | bigint): External_2;
+    prototype: null;
+};
+export { External_2 as External }
+
+export declare class Finalizer {
+    envObject: Env;
+    private _finalizeCallback;
+    private _finalizeData;
+    private _finalizeHint;
+    private _makeDynCall_vppp;
+    constructor(envObject: Env, _finalizeCallback?: napi_finalize, _finalizeData?: void_p, _finalizeHint?: void_p);
+    callback(): napi_finalize;
+    data(): void_p;
+    hint(): void_p;
+    resetEnv(): void;
+    resetFinalizer(): void;
+    callFinalizer(): void;
+    dispose(): void;
+}
+
+export declare function getDefaultContext(): Context;
+
+/** @public */
+export declare function getExternalValue(external: External_2): number | bigint;
+
+export declare class Handle<S> {
+    id: number;
+    value: S;
+    constructor(id: number, value: S);
+    data(): void_p;
+    isNumber(): boolean;
+    isBigInt(): boolean;
+    isString(): boolean;
+    isFunction(): boolean;
+    isExternal(): boolean;
+    isObject(): boolean;
+    isArray(): boolean;
+    isArrayBuffer(): boolean;
+    isTypedArray(): boolean;
+    isBuffer(BufferConstructor?: BufferCtor): boolean;
+    isDataView(): boolean;
+    isDate(): boolean;
+    isPromise(): boolean;
+    isBoolean(): boolean;
+    isUndefined(): boolean;
+    isSymbol(): boolean;
+    isNull(): boolean;
+    dispose(): void;
+}
+
+export declare class HandleScope {
+    handleStore: HandleStore;
+    id: number;
+    parent: HandleScope | null;
+    child: HandleScope | null;
+    start: number;
+    end: number;
+    private _escapeCalled;
+    callbackInfo: ICallbackInfo;
+    constructor(handleStore: HandleStore, id: number, parentScope: HandleScope | null, start: number, end?: number);
+    add<V>(value: V): Handle<V>;
+    addExternal(data: void_p): Handle<object>;
+    dispose(): void;
+    escape(handle: number): Handle<any> | null;
+    escapeCalled(): boolean;
+}
+
+export declare class HandleStore {
+    static UNDEFINED: ConstHandle<undefined>;
+    static NULL: ConstHandle<null>;
+    static FALSE: ConstHandle<false>;
+    static TRUE: ConstHandle<true>;
+    static GLOBAL: ConstHandle<typeof globalThis>;
+    static MIN_ID: 6;
+    private readonly _values;
+    private _next;
+    push<S>(value: S): Handle<S>;
+    erase(start: number, end: number): void;
+    get(id: Ptr): Handle<any> | undefined;
+    swap(a: number, b: number): void;
+    dispose(): void;
+}
+
+export declare interface ICallbackInfo {
+    thiz: any;
+    data: void_p;
+    args: ArrayLike<any>;
+    fn: Function;
+}
+
+export declare interface IDeferrdValue<T = any> {
+    resolve: (value: T) => void;
+    reject: (reason?: any) => void;
+}
+
+export declare interface IReferenceBinding {
+    wrapped: number;
+    tag: Uint32Array | null;
+}
+
+/** @public */
+export declare function isExternal(object: unknown): object is External_2;
+
+export declare function isReferenceType(v: any): v is object;
+
+export declare interface IStoreValue {
+    id: number;
+    dispose(): void;
+    [x: string]: any;
+}
+
+export declare const NAPI_VERSION_EXPERIMENTAL = Version.NAPI_VERSION_EXPERIMENTAL;
+
+export declare const NODE_API_DEFAULT_MODULE_API_VERSION = Version.NODE_API_DEFAULT_MODULE_API_VERSION;
+
+export declare const NODE_API_SUPPORTED_VERSION_MAX = Version.NODE_API_SUPPORTED_VERSION_MAX;
+
+export declare const NODE_API_SUPPORTED_VERSION_MIN = Version.NODE_API_SUPPORTED_VERSION_MIN;
+
+export declare class NodeEnv extends Env {
+    filename: string;
+    private readonly nodeBinding?;
+    destructing: boolean;
+    finalizationScheduled: boolean;
+    constructor(ctx: Context, filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any);
+    deleteMe(): void;
+    canCallIntoJs(): boolean;
+    triggerFatalException(err: any): void;
+    callbackIntoModule<T>(enforceUncaughtExceptionPolicy: boolean, fn: (env: Env) => T): T;
+    callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    callFinalizerInternal(forceUncaught: int, cb: napi_finalize, data: void_p, hint: void_p): void;
+    enqueueFinalizer(finalizer: RefTracker): void;
+    drainFinalizerQueue(): void;
+}
+
+export declare class NotSupportBufferError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class NotSupportWeakRefError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class Persistent<T> {
+    private _ref;
+    private _param;
+    private _callback;
+    private static readonly _registry;
+    constructor(value: T);
+    setWeak<P>(param: P, callback: (param: P) => void): void;
+    clearWeak(): void;
+    reset(): void;
+    isEmpty(): boolean;
+    deref(): T | undefined;
+}
+
+export declare class Reference extends RefTracker implements IStoreValue {
+    private static weakCallback;
+    id: number;
+    envObject: Env;
+    private readonly canBeWeak;
+    private _refcount;
+    private readonly _ownership;
+    persistent: Persistent<object>;
+    static create(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, _unused1?: void_p, _unused2?: void_p, _unused3?: void_p): Reference;
+    protected constructor(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership);
+    ref(): number;
+    unref(): number;
+    get(envObject?: Env): napi_value;
+    /** @virtual */
+    resetFinalizer(): void;
+    /** @virtual */
+    data(): void_p;
+    refcount(): number;
+    ownership(): ReferenceOwnership;
+    /** @virtual */
+    protected callUserFinalizer(): void;
+    /** @virtual */
+    protected invokeFinalizerFromGC(): void;
+    private _setWeak;
+    finalize(): void;
+    dispose(): void;
+}
+
+export declare enum ReferenceOwnership {
+    kRuntime = 0,
+    kUserland = 1
+}
+
+export declare class ReferenceWithData extends Reference {
+    private readonly _data;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): ReferenceWithData;
+    private constructor();
+    data(): void_p;
+}
+
+export declare class ReferenceWithFinalizer extends Reference {
+    private _finalizer;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): ReferenceWithFinalizer;
+    private constructor();
+    resetFinalizer(): void;
+    data(): void_p;
+    protected callUserFinalizer(): void;
+    protected invokeFinalizerFromGC(): void;
+    dispose(): void;
+}
+
+export declare class RefTracker {
+    /** @virtual */
+    dispose(): void;
+    /** @virtual */
+    finalize(): void;
+    private _next;
+    private _prev;
+    link(list: RefTracker): void;
+    unlink(): void;
+    static finalizeAll(list: RefTracker): void;
+}
+
+export declare class ScopeStore {
+    private readonly _rootScope;
+    currentScope: HandleScope;
+    private readonly _values;
+    constructor();
+    get(id: number): HandleScope | undefined;
+    openScope(handleStore: HandleStore): HandleScope;
+    closeScope(): void;
+    dispose(): void;
+}
+
+export declare class Store<V extends IStoreValue> {
+    protected _values: Array<V | undefined>;
+    private _freeList;
+    private _size;
+    constructor();
+    add(value: V): void;
+    get(id: Ptr): V | undefined;
+    has(id: Ptr): boolean;
+    remove(id: Ptr): void;
+    dispose(): void;
+}
+
+export declare class TrackedFinalizer extends RefTracker {
+    private _finalizer;
+    static create(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    private constructor();
+    data(): void_p;
+    dispose(): void;
+    finalize(): void;
+}
+
+export declare class TryCatch {
+    private _exception;
+    private _caught;
+    isEmpty(): boolean;
+    hasCaught(): boolean;
+    exception(): any;
+    setError(err: any): void;
+    reset(): void;
+    extractException(): any;
+}
+
+export declare const version: string;
+
+export { }
@@ -0,0 +1,671 @@
+export declare type Ptr = number | bigint
+
+export declare interface IBuffer extends Uint8Array {}
+export declare interface BufferCtor {
+  readonly prototype: IBuffer
+  /** @deprecated */
+  new (...args: any[]): IBuffer
+  from: {
+    (buffer: ArrayBufferLike): IBuffer
+    (buffer: ArrayBufferLike, byteOffset: number, length: number): IBuffer
+  }
+  alloc: (size: number) => IBuffer
+  isBuffer: (obj: unknown) => obj is IBuffer
+}
+
+export declare const enum GlobalHandle {
+  UNDEFINED = 1,
+  NULL,
+  FALSE,
+  TRUE,
+  GLOBAL
+}
+
+export declare const enum Version {
+  NODE_API_SUPPORTED_VERSION_MIN = 1,
+  NODE_API_DEFAULT_MODULE_API_VERSION = 8,
+  NODE_API_SUPPORTED_VERSION_MAX = 10,
+  NAPI_VERSION_EXPERIMENTAL = 2147483647 // INT_MAX
+}
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type Pointer<T> = number
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type PointerPointer<T> = number
+export declare type FunctionPointer<T extends (...args: any[]) => any> = Pointer<T>
+export declare type Const<T> = T
+
+export declare type void_p = Pointer<void>
+export declare type void_pp = Pointer<void_p>
+export declare type bool = number
+export declare type char = number
+export declare type char_p = Pointer<char>
+export declare type unsigned_char = number
+export declare type const_char = Const<char>
+export declare type const_char_p = Pointer<const_char>
+export declare type char16_t_p = number
+export declare type const_char16_t_p = number
+
+export declare type short = number
+export declare type unsigned_short = number
+export declare type int = number
+export declare type unsigned_int = number
+export declare type long = number
+export declare type unsigned_long = number
+export declare type long_long = bigint
+export declare type unsigned_long_long = bigint
+export declare type float = number
+export declare type double = number
+export declare type long_double = number
+export declare type size_t = number
+
+export declare type int8_t = number
+export declare type uint8_t = number
+export declare type int16_t = number
+export declare type uint16_t = number
+export declare type int32_t = number
+export declare type uint32_t = number
+export declare type int64_t = bigint
+export declare type uint64_t = bigint
+export declare type napi_env = Pointer<unknown>
+
+export declare type napi_value = Pointer<unknown>
+export declare type napi_ref = Pointer<unknown>
+export declare type napi_deferred = Pointer<unknown>
+export declare type napi_handle_scope = Pointer<unknown>
+export declare type napi_escapable_handle_scope = Pointer<unknown>
+
+export declare type napi_addon_register_func = FunctionPointer<(env: napi_env, exports: napi_value) => napi_value>
+
+export declare type napi_callback_info = Pointer<unknown>
+export declare type napi_callback = FunctionPointer<(env: napi_env, info: napi_callback_info) => napi_value>
+
+export declare interface napi_extended_error_info {
+  error_message: const_char_p
+  engine_reserved: void_p
+  engine_error_code: uint32_t
+  error_code: napi_status
+}
+
+export declare interface napi_property_descriptor {
+  // One of utf8name or name should be NULL.
+  utf8name: const_char_p
+  name: napi_value
+
+  method: napi_callback
+  getter: napi_callback
+  setter: napi_callback
+  value: napi_value
+  /* napi_property_attributes */
+  attributes: number
+  data: void_p
+}
+
+export declare type napi_finalize = FunctionPointer<(
+  env: napi_env,
+  finalize_data: void_p,
+  finalize_hint: void_p
+) => void>
+
+export declare interface node_module {
+  nm_version: int32_t
+  nm_flags: uint32_t
+  nm_filename: Pointer<const_char>
+  nm_register_func: napi_addon_register_func
+  nm_modname: Pointer<const_char>
+  nm_priv: Pointer<void>
+  reserved: PointerPointer<void>
+}
+
+export declare interface napi_node_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+  release: const_char_p
+}
+
+export declare interface emnapi_emscripten_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+}
+
+export declare const enum napi_status {
+  napi_ok,
+  napi_invalid_arg,
+  napi_object_expected,
+  napi_string_expected,
+  napi_name_expected,
+  napi_function_expected,
+  napi_number_expected,
+  napi_boolean_expected,
+  napi_array_expected,
+  napi_generic_failure,
+  napi_pending_exception,
+  napi_cancelled,
+  napi_escape_called_twice,
+  napi_handle_scope_mismatch,
+  napi_callback_scope_mismatch,
+  napi_queue_full,
+  napi_closing,
+  napi_bigint_expected,
+  napi_date_expected,
+  napi_arraybuffer_expected,
+  napi_detachable_arraybuffer_expected,
+  napi_would_deadlock, // unused
+  napi_no_external_buffers_allowed,
+  napi_cannot_run_js
+}
+
+export declare const enum napi_property_attributes {
+  napi_default = 0,
+  napi_writable = 1 << 0,
+  napi_enumerable = 1 << 1,
+  napi_configurable = 1 << 2,
+
+  // Used with napi_define_class to distinguish static properties
+  // from instance properties. Ignored by napi_define_properties.
+  napi_static = 1 << 10,
+
+  /// #ifdef NAPI_EXPERIMENTAL
+  // Default for class methods.
+  napi_default_method = napi_writable | napi_configurable,
+
+  // Default for object properties, like in JS obj[prop].
+  napi_default_jsproperty = napi_writable | napi_enumerable | napi_configurable
+  /// #endif  // NAPI_EXPERIMENTAL
+}
+
+export declare const enum napi_valuetype {
+  napi_undefined,
+  napi_null,
+  napi_boolean,
+  napi_number,
+  napi_string,
+  napi_symbol,
+  napi_object,
+  napi_function,
+  napi_external,
+  napi_bigint
+}
+
+export declare const enum napi_typedarray_type {
+  napi_int8_array,
+  napi_uint8_array,
+  napi_uint8_clamped_array,
+  napi_int16_array,
+  napi_uint16_array,
+  napi_int32_array,
+  napi_uint32_array,
+  napi_float32_array,
+  napi_float64_array,
+  napi_bigint64_array,
+  napi_biguint64_array,
+  napi_float16_array,
+}
+
+export declare const enum napi_key_collection_mode {
+  napi_key_include_prototypes,
+  napi_key_own_only
+}
+
+export declare const enum napi_key_filter {
+  napi_key_all_properties = 0,
+  napi_key_writable = 1,
+  napi_key_enumerable = 1 << 1,
+  napi_key_configurable = 1 << 2,
+  napi_key_skip_strings = 1 << 3,
+  napi_key_skip_symbols = 1 << 4
+}
+
+export declare const enum napi_key_conversion {
+  napi_key_keep_numbers,
+  napi_key_numbers_to_strings
+}
+
+export declare const enum emnapi_memory_view_type {
+  emnapi_int8_array,
+  emnapi_uint8_array,
+  emnapi_uint8_clamped_array,
+  emnapi_int16_array,
+  emnapi_uint16_array,
+  emnapi_int32_array,
+  emnapi_uint32_array,
+  emnapi_float32_array,
+  emnapi_float64_array,
+  emnapi_bigint64_array,
+  emnapi_biguint64_array,
+  emnapi_float16_array,
+  emnapi_data_view = -1,
+  emnapi_buffer = -2
+}
+
+export declare const enum napi_threadsafe_function_call_mode {
+  napi_tsfn_nonblocking,
+  napi_tsfn_blocking
+}
+
+export declare const enum napi_threadsafe_function_release_mode {
+  napi_tsfn_release,
+  napi_tsfn_abort
+}
+export declare type CleanupHookCallbackFunction = number | ((arg: number) => void);
+
+export declare class ConstHandle<S extends undefined | null | boolean | typeof globalThis> extends Handle<S> {
+    constructor(id: number, value: S);
+    dispose(): void;
+}
+
+export declare class Context {
+    private _isStopping;
+    private _canCallIntoJs;
+    private _suppressDestroy;
+    envStore: Store<Env>;
+    scopeStore: ScopeStore;
+    refStore: Store<Reference>;
+    deferredStore: Store<Deferred<any>>;
+    handleStore: HandleStore;
+    private readonly refCounter?;
+    private readonly cleanupQueue;
+    private readonly _externalMemory;
+    feature: {
+        supportReflect: boolean;
+        supportFinalizer: boolean;
+        supportWeakSymbol: boolean;
+        supportBigInt: boolean;
+        supportNewFunction: boolean;
+        canSetFunctionName: boolean;
+        setImmediate: (callback: () => void) => void;
+        Buffer: BufferCtor | undefined;
+        MessageChannel: {
+            new (): MessageChannel;
+            prototype: MessageChannel;
+        } | undefined;
+    };
+    constructor(options?: ContextOptions);
+    /**
+     * Suppress the destroy on `beforeExit` event in Node.js.
+     * Call this method if you want to keep the context and
+     * all associated {@link Env | Env} alive,
+     * this also means that cleanup hooks will not be called.
+     * After call this method, you should call
+     * {@link Context.destroy | `Context.prototype.destroy`} method manually.
+     */
+    suppressDestroy(): void;
+    getRuntimeVersions(): {
+        version: string;
+        NODE_API_SUPPORTED_VERSION_MAX: Version;
+        NAPI_VERSION_EXPERIMENTAL: Version;
+        NODE_API_DEFAULT_MODULE_API_VERSION: Version;
+    };
+    createNotSupportWeakRefError(api: string, message: string): NotSupportWeakRefError;
+    createNotSupportBufferError(api: string, message: string): NotSupportBufferError;
+    createReference(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership): Reference;
+    createReferenceWithData(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): Reference;
+    createReferenceWithFinalizer(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback?: napi_finalize, finalize_data?: void_p, finalize_hint?: void_p): Reference;
+    createDeferred<T = any>(value: IDeferrdValue<T>): Deferred<T>;
+    adjustAmountOfExternalAllocatedMemory(changeInBytes: number | bigint): bigint;
+    createEnv(filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any): Env;
+    createTrackedFinalizer(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    getCurrentScope(): HandleScope | null;
+    addToCurrentScope<V>(value: V): Handle<V>;
+    openScope(envObject?: Env): HandleScope;
+    closeScope(envObject?: Env, _scope?: HandleScope): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    addCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    removeCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    runCleanup(): void;
+    increaseWaitingRequestCounter(): void;
+    decreaseWaitingRequestCounter(): void;
+    setCanCallIntoJs(value: boolean): void;
+    setStopping(value: boolean): void;
+    canCallIntoJs(): boolean;
+    /**
+     * Destroy the context and call cleanup hooks.
+     * Associated {@link Env | Env} will be destroyed.
+     */
+    destroy(): void;
+}
+
+export declare interface ContextOptions {
+    onExternalMemoryChange?: (current: bigint, old: bigint, delta: bigint) => any;
+}
+
+export declare function createContext(options?: ContextOptions): Context;
+
+export declare class Deferred<T = any> implements IStoreValue {
+    static create<T = any>(ctx: Context, value: IDeferrdValue<T>): Deferred;
+    id: number;
+    ctx: Context;
+    value: IDeferrdValue<T>;
+    constructor(ctx: Context, value: IDeferrdValue<T>);
+    resolve(value: T): void;
+    reject(reason?: any): void;
+    dispose(): void;
+}
+
+export declare class EmnapiError extends Error {
+    constructor(message?: string);
+}
+
+export declare abstract class Env implements IStoreValue {
+    readonly ctx: Context;
+    moduleApiVersion: number;
+    makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void;
+    makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void;
+    abort: (msg?: string) => never;
+    id: number;
+    openHandleScopes: number;
+    instanceData: TrackedFinalizer | null;
+    tryCatch: TryCatch;
+    refs: number;
+    reflist: RefTracker;
+    finalizing_reflist: RefTracker;
+    pendingFinalizers: RefTracker[];
+    lastError: {
+        errorCode: napi_status;
+        engineErrorCode: number;
+        engineReserved: Ptr;
+    };
+    inGcFinalizer: boolean;
+    constructor(ctx: Context, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never);
+    /** @virtual */
+    canCallIntoJs(): boolean;
+    terminatedOrTerminating(): boolean;
+    ref(): void;
+    unref(): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    ensureHandleId(value: any): napi_value;
+    clearLastError(): napi_status;
+    setLastError(error_code: napi_status, engine_error_code?: uint32_t, engine_reserved?: void_p): napi_status;
+    getReturnStatus(): napi_status;
+    callIntoModule<T>(fn: (env: Env) => T, handleException?: (envObject: Env, value: any) => void): T;
+    /** @virtual */
+    abstract callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    invokeFinalizerFromGC(finalizer: RefTracker): void;
+    checkGCAccess(): void;
+    /** @virtual */
+    enqueueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    dequeueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    deleteMe(): void;
+    dispose(): void;
+    private readonly _bindingMap;
+    initObjectBinding<S extends object>(value: S): IReferenceBinding;
+    getObjectBinding<S extends object>(value: S): IReferenceBinding;
+    setInstanceData(data: number, finalize_cb: number, finalize_hint: number): void;
+    getInstanceData(): number;
+}
+
+/** @public */
+declare interface External_2 extends Record<any, any> {
+}
+
+/** @public */
+declare const External_2: {
+    new (value: number | bigint): External_2;
+    prototype: null;
+};
+export { External_2 as External }
+
+export declare class Finalizer {
+    envObject: Env;
+    private _finalizeCallback;
+    private _finalizeData;
+    private _finalizeHint;
+    private _makeDynCall_vppp;
+    constructor(envObject: Env, _finalizeCallback?: napi_finalize, _finalizeData?: void_p, _finalizeHint?: void_p);
+    callback(): napi_finalize;
+    data(): void_p;
+    hint(): void_p;
+    resetEnv(): void;
+    resetFinalizer(): void;
+    callFinalizer(): void;
+    dispose(): void;
+}
+
+export declare function getDefaultContext(): Context;
+
+/** @public */
+export declare function getExternalValue(external: External_2): number | bigint;
+
+export declare class Handle<S> {
+    id: number;
+    value: S;
+    constructor(id: number, value: S);
+    data(): void_p;
+    isNumber(): boolean;
+    isBigInt(): boolean;
+    isString(): boolean;
+    isFunction(): boolean;
+    isExternal(): boolean;
+    isObject(): boolean;
+    isArray(): boolean;
+    isArrayBuffer(): boolean;
+    isTypedArray(): boolean;
+    isBuffer(BufferConstructor?: BufferCtor): boolean;
+    isDataView(): boolean;
+    isDate(): boolean;
+    isPromise(): boolean;
+    isBoolean(): boolean;
+    isUndefined(): boolean;
+    isSymbol(): boolean;
+    isNull(): boolean;
+    dispose(): void;
+}
+
+export declare class HandleScope {
+    handleStore: HandleStore;
+    id: number;
+    parent: HandleScope | null;
+    child: HandleScope | null;
+    start: number;
+    end: number;
+    private _escapeCalled;
+    callbackInfo: ICallbackInfo;
+    constructor(handleStore: HandleStore, id: number, parentScope: HandleScope | null, start: number, end?: number);
+    add<V>(value: V): Handle<V>;
+    addExternal(data: void_p): Handle<object>;
+    dispose(): void;
+    escape(handle: number): Handle<any> | null;
+    escapeCalled(): boolean;
+}
+
+export declare class HandleStore {
+    static UNDEFINED: ConstHandle<undefined>;
+    static NULL: ConstHandle<null>;
+    static FALSE: ConstHandle<false>;
+    static TRUE: ConstHandle<true>;
+    static GLOBAL: ConstHandle<typeof globalThis>;
+    static MIN_ID: 6;
+    private readonly _values;
+    private _next;
+    push<S>(value: S): Handle<S>;
+    erase(start: number, end: number): void;
+    get(id: Ptr): Handle<any> | undefined;
+    swap(a: number, b: number): void;
+    dispose(): void;
+}
+
+export declare interface ICallbackInfo {
+    thiz: any;
+    data: void_p;
+    args: ArrayLike<any>;
+    fn: Function;
+}
+
+export declare interface IDeferrdValue<T = any> {
+    resolve: (value: T) => void;
+    reject: (reason?: any) => void;
+}
+
+export declare interface IReferenceBinding {
+    wrapped: number;
+    tag: Uint32Array | null;
+}
+
+/** @public */
+export declare function isExternal(object: unknown): object is External_2;
+
+export declare function isReferenceType(v: any): v is object;
+
+export declare interface IStoreValue {
+    id: number;
+    dispose(): void;
+    [x: string]: any;
+}
+
+export declare const NAPI_VERSION_EXPERIMENTAL = Version.NAPI_VERSION_EXPERIMENTAL;
+
+export declare const NODE_API_DEFAULT_MODULE_API_VERSION = Version.NODE_API_DEFAULT_MODULE_API_VERSION;
+
+export declare const NODE_API_SUPPORTED_VERSION_MAX = Version.NODE_API_SUPPORTED_VERSION_MAX;
+
+export declare const NODE_API_SUPPORTED_VERSION_MIN = Version.NODE_API_SUPPORTED_VERSION_MIN;
+
+export declare class NodeEnv extends Env {
+    filename: string;
+    private readonly nodeBinding?;
+    destructing: boolean;
+    finalizationScheduled: boolean;
+    constructor(ctx: Context, filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any);
+    deleteMe(): void;
+    canCallIntoJs(): boolean;
+    triggerFatalException(err: any): void;
+    callbackIntoModule<T>(enforceUncaughtExceptionPolicy: boolean, fn: (env: Env) => T): T;
+    callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    callFinalizerInternal(forceUncaught: int, cb: napi_finalize, data: void_p, hint: void_p): void;
+    enqueueFinalizer(finalizer: RefTracker): void;
+    drainFinalizerQueue(): void;
+}
+
+export declare class NotSupportBufferError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class NotSupportWeakRefError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class Persistent<T> {
+    private _ref;
+    private _param;
+    private _callback;
+    private static readonly _registry;
+    constructor(value: T);
+    setWeak<P>(param: P, callback: (param: P) => void): void;
+    clearWeak(): void;
+    reset(): void;
+    isEmpty(): boolean;
+    deref(): T | undefined;
+}
+
+export declare class Reference extends RefTracker implements IStoreValue {
+    private static weakCallback;
+    id: number;
+    envObject: Env;
+    private readonly canBeWeak;
+    private _refcount;
+    private readonly _ownership;
+    persistent: Persistent<object>;
+    static create(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, _unused1?: void_p, _unused2?: void_p, _unused3?: void_p): Reference;
+    protected constructor(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership);
+    ref(): number;
+    unref(): number;
+    get(envObject?: Env): napi_value;
+    /** @virtual */
+    resetFinalizer(): void;
+    /** @virtual */
+    data(): void_p;
+    refcount(): number;
+    ownership(): ReferenceOwnership;
+    /** @virtual */
+    protected callUserFinalizer(): void;
+    /** @virtual */
+    protected invokeFinalizerFromGC(): void;
+    private _setWeak;
+    finalize(): void;
+    dispose(): void;
+}
+
+export declare enum ReferenceOwnership {
+    kRuntime = 0,
+    kUserland = 1
+}
+
+export declare class ReferenceWithData extends Reference {
+    private readonly _data;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): ReferenceWithData;
+    private constructor();
+    data(): void_p;
+}
+
+export declare class ReferenceWithFinalizer extends Reference {
+    private _finalizer;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): ReferenceWithFinalizer;
+    private constructor();
+    resetFinalizer(): void;
+    data(): void_p;
+    protected callUserFinalizer(): void;
+    protected invokeFinalizerFromGC(): void;
+    dispose(): void;
+}
+
+export declare class RefTracker {
+    /** @virtual */
+    dispose(): void;
+    /** @virtual */
+    finalize(): void;
+    private _next;
+    private _prev;
+    link(list: RefTracker): void;
+    unlink(): void;
+    static finalizeAll(list: RefTracker): void;
+}
+
+export declare class ScopeStore {
+    private readonly _rootScope;
+    currentScope: HandleScope;
+    private readonly _values;
+    constructor();
+    get(id: number): HandleScope | undefined;
+    openScope(handleStore: HandleStore): HandleScope;
+    closeScope(): void;
+    dispose(): void;
+}
+
+export declare class Store<V extends IStoreValue> {
+    protected _values: Array<V | undefined>;
+    private _freeList;
+    private _size;
+    constructor();
+    add(value: V): void;
+    get(id: Ptr): V | undefined;
+    has(id: Ptr): boolean;
+    remove(id: Ptr): void;
+    dispose(): void;
+}
+
+export declare class TrackedFinalizer extends RefTracker {
+    private _finalizer;
+    static create(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    private constructor();
+    data(): void_p;
+    dispose(): void;
+    finalize(): void;
+}
+
+export declare class TryCatch {
+    private _exception;
+    private _caught;
+    isEmpty(): boolean;
+    hasCaught(): boolean;
+    exception(): any;
+    setError(err: any): void;
+    reset(): void;
+    extractException(): any;
+}
+
+export declare const version: string;
+
+export { }
@@ -0,0 +1,673 @@
+export declare type Ptr = number | bigint
+
+export declare interface IBuffer extends Uint8Array {}
+export declare interface BufferCtor {
+  readonly prototype: IBuffer
+  /** @deprecated */
+  new (...args: any[]): IBuffer
+  from: {
+    (buffer: ArrayBufferLike): IBuffer
+    (buffer: ArrayBufferLike, byteOffset: number, length: number): IBuffer
+  }
+  alloc: (size: number) => IBuffer
+  isBuffer: (obj: unknown) => obj is IBuffer
+}
+
+export declare const enum GlobalHandle {
+  UNDEFINED = 1,
+  NULL,
+  FALSE,
+  TRUE,
+  GLOBAL
+}
+
+export declare const enum Version {
+  NODE_API_SUPPORTED_VERSION_MIN = 1,
+  NODE_API_DEFAULT_MODULE_API_VERSION = 8,
+  NODE_API_SUPPORTED_VERSION_MAX = 10,
+  NAPI_VERSION_EXPERIMENTAL = 2147483647 // INT_MAX
+}
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type Pointer<T> = number
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type PointerPointer<T> = number
+export declare type FunctionPointer<T extends (...args: any[]) => any> = Pointer<T>
+export declare type Const<T> = T
+
+export declare type void_p = Pointer<void>
+export declare type void_pp = Pointer<void_p>
+export declare type bool = number
+export declare type char = number
+export declare type char_p = Pointer<char>
+export declare type unsigned_char = number
+export declare type const_char = Const<char>
+export declare type const_char_p = Pointer<const_char>
+export declare type char16_t_p = number
+export declare type const_char16_t_p = number
+
+export declare type short = number
+export declare type unsigned_short = number
+export declare type int = number
+export declare type unsigned_int = number
+export declare type long = number
+export declare type unsigned_long = number
+export declare type long_long = bigint
+export declare type unsigned_long_long = bigint
+export declare type float = number
+export declare type double = number
+export declare type long_double = number
+export declare type size_t = number
+
+export declare type int8_t = number
+export declare type uint8_t = number
+export declare type int16_t = number
+export declare type uint16_t = number
+export declare type int32_t = number
+export declare type uint32_t = number
+export declare type int64_t = bigint
+export declare type uint64_t = bigint
+export declare type napi_env = Pointer<unknown>
+
+export declare type napi_value = Pointer<unknown>
+export declare type napi_ref = Pointer<unknown>
+export declare type napi_deferred = Pointer<unknown>
+export declare type napi_handle_scope = Pointer<unknown>
+export declare type napi_escapable_handle_scope = Pointer<unknown>
+
+export declare type napi_addon_register_func = FunctionPointer<(env: napi_env, exports: napi_value) => napi_value>
+
+export declare type napi_callback_info = Pointer<unknown>
+export declare type napi_callback = FunctionPointer<(env: napi_env, info: napi_callback_info) => napi_value>
+
+export declare interface napi_extended_error_info {
+  error_message: const_char_p
+  engine_reserved: void_p
+  engine_error_code: uint32_t
+  error_code: napi_status
+}
+
+export declare interface napi_property_descriptor {
+  // One of utf8name or name should be NULL.
+  utf8name: const_char_p
+  name: napi_value
+
+  method: napi_callback
+  getter: napi_callback
+  setter: napi_callback
+  value: napi_value
+  /* napi_property_attributes */
+  attributes: number
+  data: void_p
+}
+
+export declare type napi_finalize = FunctionPointer<(
+  env: napi_env,
+  finalize_data: void_p,
+  finalize_hint: void_p
+) => void>
+
+export declare interface node_module {
+  nm_version: int32_t
+  nm_flags: uint32_t
+  nm_filename: Pointer<const_char>
+  nm_register_func: napi_addon_register_func
+  nm_modname: Pointer<const_char>
+  nm_priv: Pointer<void>
+  reserved: PointerPointer<void>
+}
+
+export declare interface napi_node_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+  release: const_char_p
+}
+
+export declare interface emnapi_emscripten_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+}
+
+export declare const enum napi_status {
+  napi_ok,
+  napi_invalid_arg,
+  napi_object_expected,
+  napi_string_expected,
+  napi_name_expected,
+  napi_function_expected,
+  napi_number_expected,
+  napi_boolean_expected,
+  napi_array_expected,
+  napi_generic_failure,
+  napi_pending_exception,
+  napi_cancelled,
+  napi_escape_called_twice,
+  napi_handle_scope_mismatch,
+  napi_callback_scope_mismatch,
+  napi_queue_full,
+  napi_closing,
+  napi_bigint_expected,
+  napi_date_expected,
+  napi_arraybuffer_expected,
+  napi_detachable_arraybuffer_expected,
+  napi_would_deadlock, // unused
+  napi_no_external_buffers_allowed,
+  napi_cannot_run_js
+}
+
+export declare const enum napi_property_attributes {
+  napi_default = 0,
+  napi_writable = 1 << 0,
+  napi_enumerable = 1 << 1,
+  napi_configurable = 1 << 2,
+
+  // Used with napi_define_class to distinguish static properties
+  // from instance properties. Ignored by napi_define_properties.
+  napi_static = 1 << 10,
+
+  /// #ifdef NAPI_EXPERIMENTAL
+  // Default for class methods.
+  napi_default_method = napi_writable | napi_configurable,
+
+  // Default for object properties, like in JS obj[prop].
+  napi_default_jsproperty = napi_writable | napi_enumerable | napi_configurable
+  /// #endif  // NAPI_EXPERIMENTAL
+}
+
+export declare const enum napi_valuetype {
+  napi_undefined,
+  napi_null,
+  napi_boolean,
+  napi_number,
+  napi_string,
+  napi_symbol,
+  napi_object,
+  napi_function,
+  napi_external,
+  napi_bigint
+}
+
+export declare const enum napi_typedarray_type {
+  napi_int8_array,
+  napi_uint8_array,
+  napi_uint8_clamped_array,
+  napi_int16_array,
+  napi_uint16_array,
+  napi_int32_array,
+  napi_uint32_array,
+  napi_float32_array,
+  napi_float64_array,
+  napi_bigint64_array,
+  napi_biguint64_array,
+  napi_float16_array,
+}
+
+export declare const enum napi_key_collection_mode {
+  napi_key_include_prototypes,
+  napi_key_own_only
+}
+
+export declare const enum napi_key_filter {
+  napi_key_all_properties = 0,
+  napi_key_writable = 1,
+  napi_key_enumerable = 1 << 1,
+  napi_key_configurable = 1 << 2,
+  napi_key_skip_strings = 1 << 3,
+  napi_key_skip_symbols = 1 << 4
+}
+
+export declare const enum napi_key_conversion {
+  napi_key_keep_numbers,
+  napi_key_numbers_to_strings
+}
+
+export declare const enum emnapi_memory_view_type {
+  emnapi_int8_array,
+  emnapi_uint8_array,
+  emnapi_uint8_clamped_array,
+  emnapi_int16_array,
+  emnapi_uint16_array,
+  emnapi_int32_array,
+  emnapi_uint32_array,
+  emnapi_float32_array,
+  emnapi_float64_array,
+  emnapi_bigint64_array,
+  emnapi_biguint64_array,
+  emnapi_float16_array,
+  emnapi_data_view = -1,
+  emnapi_buffer = -2
+}
+
+export declare const enum napi_threadsafe_function_call_mode {
+  napi_tsfn_nonblocking,
+  napi_tsfn_blocking
+}
+
+export declare const enum napi_threadsafe_function_release_mode {
+  napi_tsfn_release,
+  napi_tsfn_abort
+}
+export declare type CleanupHookCallbackFunction = number | ((arg: number) => void);
+
+export declare class ConstHandle<S extends undefined | null | boolean | typeof globalThis> extends Handle<S> {
+    constructor(id: number, value: S);
+    dispose(): void;
+}
+
+export declare class Context {
+    private _isStopping;
+    private _canCallIntoJs;
+    private _suppressDestroy;
+    envStore: Store<Env>;
+    scopeStore: ScopeStore;
+    refStore: Store<Reference>;
+    deferredStore: Store<Deferred<any>>;
+    handleStore: HandleStore;
+    private readonly refCounter?;
+    private readonly cleanupQueue;
+    private readonly _externalMemory;
+    feature: {
+        supportReflect: boolean;
+        supportFinalizer: boolean;
+        supportWeakSymbol: boolean;
+        supportBigInt: boolean;
+        supportNewFunction: boolean;
+        canSetFunctionName: boolean;
+        setImmediate: (callback: () => void) => void;
+        Buffer: BufferCtor | undefined;
+        MessageChannel: {
+            new (): MessageChannel;
+            prototype: MessageChannel;
+        } | undefined;
+    };
+    constructor(options?: ContextOptions);
+    /**
+     * Suppress the destroy on `beforeExit` event in Node.js.
+     * Call this method if you want to keep the context and
+     * all associated {@link Env | Env} alive,
+     * this also means that cleanup hooks will not be called.
+     * After call this method, you should call
+     * {@link Context.destroy | `Context.prototype.destroy`} method manually.
+     */
+    suppressDestroy(): void;
+    getRuntimeVersions(): {
+        version: string;
+        NODE_API_SUPPORTED_VERSION_MAX: Version;
+        NAPI_VERSION_EXPERIMENTAL: Version;
+        NODE_API_DEFAULT_MODULE_API_VERSION: Version;
+    };
+    createNotSupportWeakRefError(api: string, message: string): NotSupportWeakRefError;
+    createNotSupportBufferError(api: string, message: string): NotSupportBufferError;
+    createReference(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership): Reference;
+    createReferenceWithData(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): Reference;
+    createReferenceWithFinalizer(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback?: napi_finalize, finalize_data?: void_p, finalize_hint?: void_p): Reference;
+    createDeferred<T = any>(value: IDeferrdValue<T>): Deferred<T>;
+    adjustAmountOfExternalAllocatedMemory(changeInBytes: number | bigint): bigint;
+    createEnv(filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any): Env;
+    createTrackedFinalizer(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    getCurrentScope(): HandleScope | null;
+    addToCurrentScope<V>(value: V): Handle<V>;
+    openScope(envObject?: Env): HandleScope;
+    closeScope(envObject?: Env, _scope?: HandleScope): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    addCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    removeCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    runCleanup(): void;
+    increaseWaitingRequestCounter(): void;
+    decreaseWaitingRequestCounter(): void;
+    setCanCallIntoJs(value: boolean): void;
+    setStopping(value: boolean): void;
+    canCallIntoJs(): boolean;
+    /**
+     * Destroy the context and call cleanup hooks.
+     * Associated {@link Env | Env} will be destroyed.
+     */
+    destroy(): void;
+}
+
+export declare interface ContextOptions {
+    onExternalMemoryChange?: (current: bigint, old: bigint, delta: bigint) => any;
+}
+
+export declare function createContext(options?: ContextOptions): Context;
+
+export declare class Deferred<T = any> implements IStoreValue {
+    static create<T = any>(ctx: Context, value: IDeferrdValue<T>): Deferred;
+    id: number;
+    ctx: Context;
+    value: IDeferrdValue<T>;
+    constructor(ctx: Context, value: IDeferrdValue<T>);
+    resolve(value: T): void;
+    reject(reason?: any): void;
+    dispose(): void;
+}
+
+export declare class EmnapiError extends Error {
+    constructor(message?: string);
+}
+
+export declare abstract class Env implements IStoreValue {
+    readonly ctx: Context;
+    moduleApiVersion: number;
+    makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void;
+    makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void;
+    abort: (msg?: string) => never;
+    id: number;
+    openHandleScopes: number;
+    instanceData: TrackedFinalizer | null;
+    tryCatch: TryCatch;
+    refs: number;
+    reflist: RefTracker;
+    finalizing_reflist: RefTracker;
+    pendingFinalizers: RefTracker[];
+    lastError: {
+        errorCode: napi_status;
+        engineErrorCode: number;
+        engineReserved: Ptr;
+    };
+    inGcFinalizer: boolean;
+    constructor(ctx: Context, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never);
+    /** @virtual */
+    canCallIntoJs(): boolean;
+    terminatedOrTerminating(): boolean;
+    ref(): void;
+    unref(): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    ensureHandleId(value: any): napi_value;
+    clearLastError(): napi_status;
+    setLastError(error_code: napi_status, engine_error_code?: uint32_t, engine_reserved?: void_p): napi_status;
+    getReturnStatus(): napi_status;
+    callIntoModule<T>(fn: (env: Env) => T, handleException?: (envObject: Env, value: any) => void): T;
+    /** @virtual */
+    abstract callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    invokeFinalizerFromGC(finalizer: RefTracker): void;
+    checkGCAccess(): void;
+    /** @virtual */
+    enqueueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    dequeueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    deleteMe(): void;
+    dispose(): void;
+    private readonly _bindingMap;
+    initObjectBinding<S extends object>(value: S): IReferenceBinding;
+    getObjectBinding<S extends object>(value: S): IReferenceBinding;
+    setInstanceData(data: number, finalize_cb: number, finalize_hint: number): void;
+    getInstanceData(): number;
+}
+
+/** @public */
+declare interface External_2 extends Record<any, any> {
+}
+
+/** @public */
+declare const External_2: {
+    new (value: number | bigint): External_2;
+    prototype: null;
+};
+export { External_2 as External }
+
+export declare class Finalizer {
+    envObject: Env;
+    private _finalizeCallback;
+    private _finalizeData;
+    private _finalizeHint;
+    private _makeDynCall_vppp;
+    constructor(envObject: Env, _finalizeCallback?: napi_finalize, _finalizeData?: void_p, _finalizeHint?: void_p);
+    callback(): napi_finalize;
+    data(): void_p;
+    hint(): void_p;
+    resetEnv(): void;
+    resetFinalizer(): void;
+    callFinalizer(): void;
+    dispose(): void;
+}
+
+export declare function getDefaultContext(): Context;
+
+/** @public */
+export declare function getExternalValue(external: External_2): number | bigint;
+
+export declare class Handle<S> {
+    id: number;
+    value: S;
+    constructor(id: number, value: S);
+    data(): void_p;
+    isNumber(): boolean;
+    isBigInt(): boolean;
+    isString(): boolean;
+    isFunction(): boolean;
+    isExternal(): boolean;
+    isObject(): boolean;
+    isArray(): boolean;
+    isArrayBuffer(): boolean;
+    isTypedArray(): boolean;
+    isBuffer(BufferConstructor?: BufferCtor): boolean;
+    isDataView(): boolean;
+    isDate(): boolean;
+    isPromise(): boolean;
+    isBoolean(): boolean;
+    isUndefined(): boolean;
+    isSymbol(): boolean;
+    isNull(): boolean;
+    dispose(): void;
+}
+
+export declare class HandleScope {
+    handleStore: HandleStore;
+    id: number;
+    parent: HandleScope | null;
+    child: HandleScope | null;
+    start: number;
+    end: number;
+    private _escapeCalled;
+    callbackInfo: ICallbackInfo;
+    constructor(handleStore: HandleStore, id: number, parentScope: HandleScope | null, start: number, end?: number);
+    add<V>(value: V): Handle<V>;
+    addExternal(data: void_p): Handle<object>;
+    dispose(): void;
+    escape(handle: number): Handle<any> | null;
+    escapeCalled(): boolean;
+}
+
+export declare class HandleStore {
+    static UNDEFINED: ConstHandle<undefined>;
+    static NULL: ConstHandle<null>;
+    static FALSE: ConstHandle<false>;
+    static TRUE: ConstHandle<true>;
+    static GLOBAL: ConstHandle<typeof globalThis>;
+    static MIN_ID: 6;
+    private readonly _values;
+    private _next;
+    push<S>(value: S): Handle<S>;
+    erase(start: number, end: number): void;
+    get(id: Ptr): Handle<any> | undefined;
+    swap(a: number, b: number): void;
+    dispose(): void;
+}
+
+export declare interface ICallbackInfo {
+    thiz: any;
+    data: void_p;
+    args: ArrayLike<any>;
+    fn: Function;
+}
+
+export declare interface IDeferrdValue<T = any> {
+    resolve: (value: T) => void;
+    reject: (reason?: any) => void;
+}
+
+export declare interface IReferenceBinding {
+    wrapped: number;
+    tag: Uint32Array | null;
+}
+
+/** @public */
+export declare function isExternal(object: unknown): object is External_2;
+
+export declare function isReferenceType(v: any): v is object;
+
+export declare interface IStoreValue {
+    id: number;
+    dispose(): void;
+    [x: string]: any;
+}
+
+export declare const NAPI_VERSION_EXPERIMENTAL = Version.NAPI_VERSION_EXPERIMENTAL;
+
+export declare const NODE_API_DEFAULT_MODULE_API_VERSION = Version.NODE_API_DEFAULT_MODULE_API_VERSION;
+
+export declare const NODE_API_SUPPORTED_VERSION_MAX = Version.NODE_API_SUPPORTED_VERSION_MAX;
+
+export declare const NODE_API_SUPPORTED_VERSION_MIN = Version.NODE_API_SUPPORTED_VERSION_MIN;
+
+export declare class NodeEnv extends Env {
+    filename: string;
+    private readonly nodeBinding?;
+    destructing: boolean;
+    finalizationScheduled: boolean;
+    constructor(ctx: Context, filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any);
+    deleteMe(): void;
+    canCallIntoJs(): boolean;
+    triggerFatalException(err: any): void;
+    callbackIntoModule<T>(enforceUncaughtExceptionPolicy: boolean, fn: (env: Env) => T): T;
+    callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    callFinalizerInternal(forceUncaught: int, cb: napi_finalize, data: void_p, hint: void_p): void;
+    enqueueFinalizer(finalizer: RefTracker): void;
+    drainFinalizerQueue(): void;
+}
+
+export declare class NotSupportBufferError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class NotSupportWeakRefError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class Persistent<T> {
+    private _ref;
+    private _param;
+    private _callback;
+    private static readonly _registry;
+    constructor(value: T);
+    setWeak<P>(param: P, callback: (param: P) => void): void;
+    clearWeak(): void;
+    reset(): void;
+    isEmpty(): boolean;
+    deref(): T | undefined;
+}
+
+export declare class Reference extends RefTracker implements IStoreValue {
+    private static weakCallback;
+    id: number;
+    envObject: Env;
+    private readonly canBeWeak;
+    private _refcount;
+    private readonly _ownership;
+    persistent: Persistent<object>;
+    static create(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, _unused1?: void_p, _unused2?: void_p, _unused3?: void_p): Reference;
+    protected constructor(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership);
+    ref(): number;
+    unref(): number;
+    get(envObject?: Env): napi_value;
+    /** @virtual */
+    resetFinalizer(): void;
+    /** @virtual */
+    data(): void_p;
+    refcount(): number;
+    ownership(): ReferenceOwnership;
+    /** @virtual */
+    protected callUserFinalizer(): void;
+    /** @virtual */
+    protected invokeFinalizerFromGC(): void;
+    private _setWeak;
+    finalize(): void;
+    dispose(): void;
+}
+
+export declare enum ReferenceOwnership {
+    kRuntime = 0,
+    kUserland = 1
+}
+
+export declare class ReferenceWithData extends Reference {
+    private readonly _data;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): ReferenceWithData;
+    private constructor();
+    data(): void_p;
+}
+
+export declare class ReferenceWithFinalizer extends Reference {
+    private _finalizer;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): ReferenceWithFinalizer;
+    private constructor();
+    resetFinalizer(): void;
+    data(): void_p;
+    protected callUserFinalizer(): void;
+    protected invokeFinalizerFromGC(): void;
+    dispose(): void;
+}
+
+export declare class RefTracker {
+    /** @virtual */
+    dispose(): void;
+    /** @virtual */
+    finalize(): void;
+    private _next;
+    private _prev;
+    link(list: RefTracker): void;
+    unlink(): void;
+    static finalizeAll(list: RefTracker): void;
+}
+
+export declare class ScopeStore {
+    private readonly _rootScope;
+    currentScope: HandleScope;
+    private readonly _values;
+    constructor();
+    get(id: number): HandleScope | undefined;
+    openScope(handleStore: HandleStore): HandleScope;
+    closeScope(): void;
+    dispose(): void;
+}
+
+export declare class Store<V extends IStoreValue> {
+    protected _values: Array<V | undefined>;
+    private _freeList;
+    private _size;
+    constructor();
+    add(value: V): void;
+    get(id: Ptr): V | undefined;
+    has(id: Ptr): boolean;
+    remove(id: Ptr): void;
+    dispose(): void;
+}
+
+export declare class TrackedFinalizer extends RefTracker {
+    private _finalizer;
+    static create(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    private constructor();
+    data(): void_p;
+    dispose(): void;
+    finalize(): void;
+}
+
+export declare class TryCatch {
+    private _exception;
+    private _caught;
+    isEmpty(): boolean;
+    hasCaught(): boolean;
+    exception(): any;
+    setError(err: any): void;
+    reset(): void;
+    extractException(): any;
+}
+
+export declare const version: string;
+
+export { }
+
+export as namespace emnapi;
@@ -0,0 +1,426 @@
+declare namespace emnapi {
+
+export type CleanupHookCallbackFunction = number | ((arg: number) => void);
+
+export class ConstHandle<S extends undefined | null | boolean | typeof globalThis> extends Handle<S> {
+    constructor(id: number, value: S);
+    dispose(): void;
+}
+
+export class Context {
+    private _isStopping;
+    private _canCallIntoJs;
+    private _suppressDestroy;
+    envStore: Store<Env>;
+    scopeStore: ScopeStore;
+    refStore: Store<Reference>;
+    deferredStore: Store<Deferred<any>>;
+    handleStore: HandleStore;
+    private readonly refCounter?;
+    private readonly cleanupQueue;
+    private readonly _externalMemory;
+    feature: {
+        supportReflect: boolean;
+        supportFinalizer: boolean;
+        supportWeakSymbol: boolean;
+        supportBigInt: boolean;
+        supportNewFunction: boolean;
+        canSetFunctionName: boolean;
+        setImmediate: (callback: () => void) => void;
+        Buffer: BufferCtor | undefined;
+        MessageChannel: {
+            new (): MessageChannel;
+            prototype: MessageChannel;
+        } | undefined;
+    };
+    constructor(options?: ContextOptions);
+    /**
+     * Suppress the destroy on `beforeExit` event in Node.js.
+     * Call this method if you want to keep the context and
+     * all associated {@link Env | Env} alive,
+     * this also means that cleanup hooks will not be called.
+     * After call this method, you should call
+     * {@link Context.destroy | `Context.prototype.destroy`} method manually.
+     */
+    suppressDestroy(): void;
+    getRuntimeVersions(): {
+        version: string;
+        NODE_API_SUPPORTED_VERSION_MAX: Version;
+        NAPI_VERSION_EXPERIMENTAL: Version;
+        NODE_API_DEFAULT_MODULE_API_VERSION: Version;
+    };
+    createNotSupportWeakRefError(api: string, message: string): NotSupportWeakRefError;
+    createNotSupportBufferError(api: string, message: string): NotSupportBufferError;
+    createReference(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership): Reference;
+    createReferenceWithData(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): Reference;
+    createReferenceWithFinalizer(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback?: napi_finalize, finalize_data?: void_p, finalize_hint?: void_p): Reference;
+    createDeferred<T = any>(value: IDeferrdValue<T>): Deferred<T>;
+    adjustAmountOfExternalAllocatedMemory(changeInBytes: number | bigint): bigint;
+    createEnv(filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any): Env;
+    createTrackedFinalizer(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    getCurrentScope(): HandleScope | null;
+    addToCurrentScope<V>(value: V): Handle<V>;
+    openScope(envObject?: Env): HandleScope;
+    closeScope(envObject?: Env, _scope?: HandleScope): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    addCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    removeCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    runCleanup(): void;
+    increaseWaitingRequestCounter(): void;
+    decreaseWaitingRequestCounter(): void;
+    setCanCallIntoJs(value: boolean): void;
+    setStopping(value: boolean): void;
+    canCallIntoJs(): boolean;
+    /**
+     * Destroy the context and call cleanup hooks.
+     * Associated {@link Env | Env} will be destroyed.
+     */
+    destroy(): void;
+}
+
+export interface ContextOptions {
+    onExternalMemoryChange?: (current: bigint, old: bigint, delta: bigint) => any;
+}
+
+export function createContext(options?: ContextOptions): Context;
+
+export class Deferred<T = any> implements IStoreValue {
+    static create<T = any>(ctx: Context, value: IDeferrdValue<T>): Deferred;
+    id: number;
+    ctx: Context;
+    value: IDeferrdValue<T>;
+    constructor(ctx: Context, value: IDeferrdValue<T>);
+    resolve(value: T): void;
+    reject(reason?: any): void;
+    dispose(): void;
+}
+
+export class EmnapiError extends Error {
+    constructor(message?: string);
+}
+
+export abstract class Env implements IStoreValue {
+    readonly ctx: Context;
+    moduleApiVersion: number;
+    makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void;
+    makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void;
+    abort: (msg?: string) => never;
+    id: number;
+    openHandleScopes: number;
+    instanceData: TrackedFinalizer | null;
+    tryCatch: TryCatch;
+    refs: number;
+    reflist: RefTracker;
+    finalizing_reflist: RefTracker;
+    pendingFinalizers: RefTracker[];
+    lastError: {
+        errorCode: napi_status;
+        engineErrorCode: number;
+        engineReserved: Ptr;
+    };
+    inGcFinalizer: boolean;
+    constructor(ctx: Context, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never);
+    /** @virtual */
+    canCallIntoJs(): boolean;
+    terminatedOrTerminating(): boolean;
+    ref(): void;
+    unref(): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    ensureHandleId(value: any): napi_value;
+    clearLastError(): napi_status;
+    setLastError(error_code: napi_status, engine_error_code?: uint32_t, engine_reserved?: void_p): napi_status;
+    getReturnStatus(): napi_status;
+    callIntoModule<T>(fn: (env: Env) => T, handleException?: (envObject: Env, value: any) => void): T;
+    /** @virtual */
+    abstract callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    invokeFinalizerFromGC(finalizer: RefTracker): void;
+    checkGCAccess(): void;
+    /** @virtual */
+    enqueueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    dequeueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    deleteMe(): void;
+    dispose(): void;
+    private readonly _bindingMap;
+    initObjectBinding<S extends object>(value: S): IReferenceBinding;
+    getObjectBinding<S extends object>(value: S): IReferenceBinding;
+    setInstanceData(data: number, finalize_cb: number, finalize_hint: number): void;
+    getInstanceData(): number;
+}
+
+/** @public */
+interface External_2 extends Record<any, any> {
+}
+
+/** @public */
+const External_2: {
+    new (value: number | bigint): External_2;
+    prototype: null;
+};
+export { External_2 as External }
+
+export class Finalizer {
+    envObject: Env;
+    private _finalizeCallback;
+    private _finalizeData;
+    private _finalizeHint;
+    private _makeDynCall_vppp;
+    constructor(envObject: Env, _finalizeCallback?: napi_finalize, _finalizeData?: void_p, _finalizeHint?: void_p);
+    callback(): napi_finalize;
+    data(): void_p;
+    hint(): void_p;
+    resetEnv(): void;
+    resetFinalizer(): void;
+    callFinalizer(): void;
+    dispose(): void;
+}
+
+export function getDefaultContext(): Context;
+
+/** @public */
+export function getExternalValue(external: External_2): number | bigint;
+
+export class Handle<S> {
+    id: number;
+    value: S;
+    constructor(id: number, value: S);
+    data(): void_p;
+    isNumber(): boolean;
+    isBigInt(): boolean;
+    isString(): boolean;
+    isFunction(): boolean;
+    isExternal(): boolean;
+    isObject(): boolean;
+    isArray(): boolean;
+    isArrayBuffer(): boolean;
+    isTypedArray(): boolean;
+    isBuffer(BufferConstructor?: BufferCtor): boolean;
+    isDataView(): boolean;
+    isDate(): boolean;
+    isPromise(): boolean;
+    isBoolean(): boolean;
+    isUndefined(): boolean;
+    isSymbol(): boolean;
+    isNull(): boolean;
+    dispose(): void;
+}
+
+export class HandleScope {
+    handleStore: HandleStore;
+    id: number;
+    parent: HandleScope | null;
+    child: HandleScope | null;
+    start: number;
+    end: number;
+    private _escapeCalled;
+    callbackInfo: ICallbackInfo;
+    constructor(handleStore: HandleStore, id: number, parentScope: HandleScope | null, start: number, end?: number);
+    add<V>(value: V): Handle<V>;
+    addExternal(data: void_p): Handle<object>;
+    dispose(): void;
+    escape(handle: number): Handle<any> | null;
+    escapeCalled(): boolean;
+}
+
+export class HandleStore {
+    static UNDEFINED: ConstHandle<undefined>;
+    static NULL: ConstHandle<null>;
+    static FALSE: ConstHandle<false>;
+    static TRUE: ConstHandle<true>;
+    static GLOBAL: ConstHandle<typeof globalThis>;
+    static MIN_ID: 6;
+    private readonly _values;
+    private _next;
+    push<S>(value: S): Handle<S>;
+    erase(start: number, end: number): void;
+    get(id: Ptr): Handle<any> | undefined;
+    swap(a: number, b: number): void;
+    dispose(): void;
+}
+
+export interface ICallbackInfo {
+    thiz: any;
+    data: void_p;
+    args: ArrayLike<any>;
+    fn: Function;
+}
+
+export interface IDeferrdValue<T = any> {
+    resolve: (value: T) => void;
+    reject: (reason?: any) => void;
+}
+
+export interface IReferenceBinding {
+    wrapped: number;
+    tag: Uint32Array | null;
+}
+
+/** @public */
+export function isExternal(object: unknown): object is External_2;
+
+export function isReferenceType(v: any): v is object;
+
+export interface IStoreValue {
+    id: number;
+    dispose(): void;
+    [x: string]: any;
+}
+
+export const NAPI_VERSION_EXPERIMENTAL = Version.NAPI_VERSION_EXPERIMENTAL;
+
+export const NODE_API_DEFAULT_MODULE_API_VERSION = Version.NODE_API_DEFAULT_MODULE_API_VERSION;
+
+export const NODE_API_SUPPORTED_VERSION_MAX = Version.NODE_API_SUPPORTED_VERSION_MAX;
+
+export const NODE_API_SUPPORTED_VERSION_MIN = Version.NODE_API_SUPPORTED_VERSION_MIN;
+
+export class NodeEnv extends Env {
+    filename: string;
+    private readonly nodeBinding?;
+    destructing: boolean;
+    finalizationScheduled: boolean;
+    constructor(ctx: Context, filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any);
+    deleteMe(): void;
+    canCallIntoJs(): boolean;
+    triggerFatalException(err: any): void;
+    callbackIntoModule<T>(enforceUncaughtExceptionPolicy: boolean, fn: (env: Env) => T): T;
+    callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    callFinalizerInternal(forceUncaught: int, cb: napi_finalize, data: void_p, hint: void_p): void;
+    enqueueFinalizer(finalizer: RefTracker): void;
+    drainFinalizerQueue(): void;
+}
+
+export class NotSupportBufferError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export class NotSupportWeakRefError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export class Persistent<T> {
+    private _ref;
+    private _param;
+    private _callback;
+    private static readonly _registry;
+    constructor(value: T);
+    setWeak<P>(param: P, callback: (param: P) => void): void;
+    clearWeak(): void;
+    reset(): void;
+    isEmpty(): boolean;
+    deref(): T | undefined;
+}
+
+export class Reference extends RefTracker implements IStoreValue {
+    private static weakCallback;
+    id: number;
+    envObject: Env;
+    private readonly canBeWeak;
+    private _refcount;
+    private readonly _ownership;
+    persistent: Persistent<object>;
+    static create(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, _unused1?: void_p, _unused2?: void_p, _unused3?: void_p): Reference;
+    protected constructor(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership);
+    ref(): number;
+    unref(): number;
+    get(envObject?: Env): napi_value;
+    /** @virtual */
+    resetFinalizer(): void;
+    /** @virtual */
+    data(): void_p;
+    refcount(): number;
+    ownership(): ReferenceOwnership;
+    /** @virtual */
+    protected callUserFinalizer(): void;
+    /** @virtual */
+    protected invokeFinalizerFromGC(): void;
+    private _setWeak;
+    finalize(): void;
+    dispose(): void;
+}
+
+export enum ReferenceOwnership {
+    kRuntime = 0,
+    kUserland = 1
+}
+
+export class ReferenceWithData extends Reference {
+    private readonly _data;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): ReferenceWithData;
+    private constructor();
+    data(): void_p;
+}
+
+export class ReferenceWithFinalizer extends Reference {
+    private _finalizer;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): ReferenceWithFinalizer;
+    private constructor();
+    resetFinalizer(): void;
+    data(): void_p;
+    protected callUserFinalizer(): void;
+    protected invokeFinalizerFromGC(): void;
+    dispose(): void;
+}
+
+export class RefTracker {
+    /** @virtual */
+    dispose(): void;
+    /** @virtual */
+    finalize(): void;
+    private _next;
+    private _prev;
+    link(list: RefTracker): void;
+    unlink(): void;
+    static finalizeAll(list: RefTracker): void;
+}
+
+export class ScopeStore {
+    private readonly _rootScope;
+    currentScope: HandleScope;
+    private readonly _values;
+    constructor();
+    get(id: number): HandleScope | undefined;
+    openScope(handleStore: HandleStore): HandleScope;
+    closeScope(): void;
+    dispose(): void;
+}
+
+export class Store<V extends IStoreValue> {
+    protected _values: Array<V | undefined>;
+    private _freeList;
+    private _size;
+    constructor();
+    add(value: V): void;
+    get(id: Ptr): V | undefined;
+    has(id: Ptr): boolean;
+    remove(id: Ptr): void;
+    dispose(): void;
+}
+
+export class TrackedFinalizer extends RefTracker {
+    private _finalizer;
+    static create(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    private constructor();
+    data(): void_p;
+    dispose(): void;
+    finalize(): void;
+}
+
+export class TryCatch {
+    private _exception;
+    private _caught;
+    isEmpty(): boolean;
+    hasCaught(): boolean;
+    exception(): any;
+    setError(err: any): void;
+    reset(): void;
+    extractException(): any;
+}
+
+export const version: string;
+
+
+
+
+}
@@ -0,0 +1,671 @@
+export declare type Ptr = number | bigint
+
+export declare interface IBuffer extends Uint8Array {}
+export declare interface BufferCtor {
+  readonly prototype: IBuffer
+  /** @deprecated */
+  new (...args: any[]): IBuffer
+  from: {
+    (buffer: ArrayBufferLike): IBuffer
+    (buffer: ArrayBufferLike, byteOffset: number, length: number): IBuffer
+  }
+  alloc: (size: number) => IBuffer
+  isBuffer: (obj: unknown) => obj is IBuffer
+}
+
+export declare const enum GlobalHandle {
+  UNDEFINED = 1,
+  NULL,
+  FALSE,
+  TRUE,
+  GLOBAL
+}
+
+export declare const enum Version {
+  NODE_API_SUPPORTED_VERSION_MIN = 1,
+  NODE_API_DEFAULT_MODULE_API_VERSION = 8,
+  NODE_API_SUPPORTED_VERSION_MAX = 10,
+  NAPI_VERSION_EXPERIMENTAL = 2147483647 // INT_MAX
+}
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type Pointer<T> = number
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export declare type PointerPointer<T> = number
+export declare type FunctionPointer<T extends (...args: any[]) => any> = Pointer<T>
+export declare type Const<T> = T
+
+export declare type void_p = Pointer<void>
+export declare type void_pp = Pointer<void_p>
+export declare type bool = number
+export declare type char = number
+export declare type char_p = Pointer<char>
+export declare type unsigned_char = number
+export declare type const_char = Const<char>
+export declare type const_char_p = Pointer<const_char>
+export declare type char16_t_p = number
+export declare type const_char16_t_p = number
+
+export declare type short = number
+export declare type unsigned_short = number
+export declare type int = number
+export declare type unsigned_int = number
+export declare type long = number
+export declare type unsigned_long = number
+export declare type long_long = bigint
+export declare type unsigned_long_long = bigint
+export declare type float = number
+export declare type double = number
+export declare type long_double = number
+export declare type size_t = number
+
+export declare type int8_t = number
+export declare type uint8_t = number
+export declare type int16_t = number
+export declare type uint16_t = number
+export declare type int32_t = number
+export declare type uint32_t = number
+export declare type int64_t = bigint
+export declare type uint64_t = bigint
+export declare type napi_env = Pointer<unknown>
+
+export declare type napi_value = Pointer<unknown>
+export declare type napi_ref = Pointer<unknown>
+export declare type napi_deferred = Pointer<unknown>
+export declare type napi_handle_scope = Pointer<unknown>
+export declare type napi_escapable_handle_scope = Pointer<unknown>
+
+export declare type napi_addon_register_func = FunctionPointer<(env: napi_env, exports: napi_value) => napi_value>
+
+export declare type napi_callback_info = Pointer<unknown>
+export declare type napi_callback = FunctionPointer<(env: napi_env, info: napi_callback_info) => napi_value>
+
+export declare interface napi_extended_error_info {
+  error_message: const_char_p
+  engine_reserved: void_p
+  engine_error_code: uint32_t
+  error_code: napi_status
+}
+
+export declare interface napi_property_descriptor {
+  // One of utf8name or name should be NULL.
+  utf8name: const_char_p
+  name: napi_value
+
+  method: napi_callback
+  getter: napi_callback
+  setter: napi_callback
+  value: napi_value
+  /* napi_property_attributes */
+  attributes: number
+  data: void_p
+}
+
+export declare type napi_finalize = FunctionPointer<(
+  env: napi_env,
+  finalize_data: void_p,
+  finalize_hint: void_p
+) => void>
+
+export declare interface node_module {
+  nm_version: int32_t
+  nm_flags: uint32_t
+  nm_filename: Pointer<const_char>
+  nm_register_func: napi_addon_register_func
+  nm_modname: Pointer<const_char>
+  nm_priv: Pointer<void>
+  reserved: PointerPointer<void>
+}
+
+export declare interface napi_node_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+  release: const_char_p
+}
+
+export declare interface emnapi_emscripten_version {
+  major: uint32_t
+  minor: uint32_t
+  patch: uint32_t
+}
+
+export declare const enum napi_status {
+  napi_ok,
+  napi_invalid_arg,
+  napi_object_expected,
+  napi_string_expected,
+  napi_name_expected,
+  napi_function_expected,
+  napi_number_expected,
+  napi_boolean_expected,
+  napi_array_expected,
+  napi_generic_failure,
+  napi_pending_exception,
+  napi_cancelled,
+  napi_escape_called_twice,
+  napi_handle_scope_mismatch,
+  napi_callback_scope_mismatch,
+  napi_queue_full,
+  napi_closing,
+  napi_bigint_expected,
+  napi_date_expected,
+  napi_arraybuffer_expected,
+  napi_detachable_arraybuffer_expected,
+  napi_would_deadlock, // unused
+  napi_no_external_buffers_allowed,
+  napi_cannot_run_js
+}
+
+export declare const enum napi_property_attributes {
+  napi_default = 0,
+  napi_writable = 1 << 0,
+  napi_enumerable = 1 << 1,
+  napi_configurable = 1 << 2,
+
+  // Used with napi_define_class to distinguish static properties
+  // from instance properties. Ignored by napi_define_properties.
+  napi_static = 1 << 10,
+
+  /// #ifdef NAPI_EXPERIMENTAL
+  // Default for class methods.
+  napi_default_method = napi_writable | napi_configurable,
+
+  // Default for object properties, like in JS obj[prop].
+  napi_default_jsproperty = napi_writable | napi_enumerable | napi_configurable
+  /// #endif  // NAPI_EXPERIMENTAL
+}
+
+export declare const enum napi_valuetype {
+  napi_undefined,
+  napi_null,
+  napi_boolean,
+  napi_number,
+  napi_string,
+  napi_symbol,
+  napi_object,
+  napi_function,
+  napi_external,
+  napi_bigint
+}
+
+export declare const enum napi_typedarray_type {
+  napi_int8_array,
+  napi_uint8_array,
+  napi_uint8_clamped_array,
+  napi_int16_array,
+  napi_uint16_array,
+  napi_int32_array,
+  napi_uint32_array,
+  napi_float32_array,
+  napi_float64_array,
+  napi_bigint64_array,
+  napi_biguint64_array,
+  napi_float16_array,
+}
+
+export declare const enum napi_key_collection_mode {
+  napi_key_include_prototypes,
+  napi_key_own_only
+}
+
+export declare const enum napi_key_filter {
+  napi_key_all_properties = 0,
+  napi_key_writable = 1,
+  napi_key_enumerable = 1 << 1,
+  napi_key_configurable = 1 << 2,
+  napi_key_skip_strings = 1 << 3,
+  napi_key_skip_symbols = 1 << 4
+}
+
+export declare const enum napi_key_conversion {
+  napi_key_keep_numbers,
+  napi_key_numbers_to_strings
+}
+
+export declare const enum emnapi_memory_view_type {
+  emnapi_int8_array,
+  emnapi_uint8_array,
+  emnapi_uint8_clamped_array,
+  emnapi_int16_array,
+  emnapi_uint16_array,
+  emnapi_int32_array,
+  emnapi_uint32_array,
+  emnapi_float32_array,
+  emnapi_float64_array,
+  emnapi_bigint64_array,
+  emnapi_biguint64_array,
+  emnapi_float16_array,
+  emnapi_data_view = -1,
+  emnapi_buffer = -2
+}
+
+export declare const enum napi_threadsafe_function_call_mode {
+  napi_tsfn_nonblocking,
+  napi_tsfn_blocking
+}
+
+export declare const enum napi_threadsafe_function_release_mode {
+  napi_tsfn_release,
+  napi_tsfn_abort
+}
+export declare type CleanupHookCallbackFunction = number | ((arg: number) => void);
+
+export declare class ConstHandle<S extends undefined | null | boolean | typeof globalThis> extends Handle<S> {
+    constructor(id: number, value: S);
+    dispose(): void;
+}
+
+export declare class Context {
+    private _isStopping;
+    private _canCallIntoJs;
+    private _suppressDestroy;
+    envStore: Store<Env>;
+    scopeStore: ScopeStore;
+    refStore: Store<Reference>;
+    deferredStore: Store<Deferred<any>>;
+    handleStore: HandleStore;
+    private readonly refCounter?;
+    private readonly cleanupQueue;
+    private readonly _externalMemory;
+    feature: {
+        supportReflect: boolean;
+        supportFinalizer: boolean;
+        supportWeakSymbol: boolean;
+        supportBigInt: boolean;
+        supportNewFunction: boolean;
+        canSetFunctionName: boolean;
+        setImmediate: (callback: () => void) => void;
+        Buffer: BufferCtor | undefined;
+        MessageChannel: {
+            new (): MessageChannel;
+            prototype: MessageChannel;
+        } | undefined;
+    };
+    constructor(options?: ContextOptions);
+    /**
+     * Suppress the destroy on `beforeExit` event in Node.js.
+     * Call this method if you want to keep the context and
+     * all associated {@link Env | Env} alive,
+     * this also means that cleanup hooks will not be called.
+     * After call this method, you should call
+     * {@link Context.destroy | `Context.prototype.destroy`} method manually.
+     */
+    suppressDestroy(): void;
+    getRuntimeVersions(): {
+        version: string;
+        NODE_API_SUPPORTED_VERSION_MAX: Version;
+        NAPI_VERSION_EXPERIMENTAL: Version;
+        NODE_API_DEFAULT_MODULE_API_VERSION: Version;
+    };
+    createNotSupportWeakRefError(api: string, message: string): NotSupportWeakRefError;
+    createNotSupportBufferError(api: string, message: string): NotSupportBufferError;
+    createReference(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership): Reference;
+    createReferenceWithData(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): Reference;
+    createReferenceWithFinalizer(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback?: napi_finalize, finalize_data?: void_p, finalize_hint?: void_p): Reference;
+    createDeferred<T = any>(value: IDeferrdValue<T>): Deferred<T>;
+    adjustAmountOfExternalAllocatedMemory(changeInBytes: number | bigint): bigint;
+    createEnv(filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any): Env;
+    createTrackedFinalizer(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    getCurrentScope(): HandleScope | null;
+    addToCurrentScope<V>(value: V): Handle<V>;
+    openScope(envObject?: Env): HandleScope;
+    closeScope(envObject?: Env, _scope?: HandleScope): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    addCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    removeCleanupHook(envObject: Env, fn: CleanupHookCallbackFunction, arg: number): void;
+    runCleanup(): void;
+    increaseWaitingRequestCounter(): void;
+    decreaseWaitingRequestCounter(): void;
+    setCanCallIntoJs(value: boolean): void;
+    setStopping(value: boolean): void;
+    canCallIntoJs(): boolean;
+    /**
+     * Destroy the context and call cleanup hooks.
+     * Associated {@link Env | Env} will be destroyed.
+     */
+    destroy(): void;
+}
+
+export declare interface ContextOptions {
+    onExternalMemoryChange?: (current: bigint, old: bigint, delta: bigint) => any;
+}
+
+export declare function createContext(options?: ContextOptions): Context;
+
+export declare class Deferred<T = any> implements IStoreValue {
+    static create<T = any>(ctx: Context, value: IDeferrdValue<T>): Deferred;
+    id: number;
+    ctx: Context;
+    value: IDeferrdValue<T>;
+    constructor(ctx: Context, value: IDeferrdValue<T>);
+    resolve(value: T): void;
+    reject(reason?: any): void;
+    dispose(): void;
+}
+
+export declare class EmnapiError extends Error {
+    constructor(message?: string);
+}
+
+export declare abstract class Env implements IStoreValue {
+    readonly ctx: Context;
+    moduleApiVersion: number;
+    makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void;
+    makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void;
+    abort: (msg?: string) => never;
+    id: number;
+    openHandleScopes: number;
+    instanceData: TrackedFinalizer | null;
+    tryCatch: TryCatch;
+    refs: number;
+    reflist: RefTracker;
+    finalizing_reflist: RefTracker;
+    pendingFinalizers: RefTracker[];
+    lastError: {
+        errorCode: napi_status;
+        engineErrorCode: number;
+        engineReserved: Ptr;
+    };
+    inGcFinalizer: boolean;
+    constructor(ctx: Context, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never);
+    /** @virtual */
+    canCallIntoJs(): boolean;
+    terminatedOrTerminating(): boolean;
+    ref(): void;
+    unref(): void;
+    ensureHandle<S>(value: S): Handle<S>;
+    ensureHandleId(value: any): napi_value;
+    clearLastError(): napi_status;
+    setLastError(error_code: napi_status, engine_error_code?: uint32_t, engine_reserved?: void_p): napi_status;
+    getReturnStatus(): napi_status;
+    callIntoModule<T>(fn: (env: Env) => T, handleException?: (envObject: Env, value: any) => void): T;
+    /** @virtual */
+    abstract callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    invokeFinalizerFromGC(finalizer: RefTracker): void;
+    checkGCAccess(): void;
+    /** @virtual */
+    enqueueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    dequeueFinalizer(finalizer: RefTracker): void;
+    /** @virtual */
+    deleteMe(): void;
+    dispose(): void;
+    private readonly _bindingMap;
+    initObjectBinding<S extends object>(value: S): IReferenceBinding;
+    getObjectBinding<S extends object>(value: S): IReferenceBinding;
+    setInstanceData(data: number, finalize_cb: number, finalize_hint: number): void;
+    getInstanceData(): number;
+}
+
+/** @public */
+declare interface External_2 extends Record<any, any> {
+}
+
+/** @public */
+declare const External_2: {
+    new (value: number | bigint): External_2;
+    prototype: null;
+};
+export { External_2 as External }
+
+export declare class Finalizer {
+    envObject: Env;
+    private _finalizeCallback;
+    private _finalizeData;
+    private _finalizeHint;
+    private _makeDynCall_vppp;
+    constructor(envObject: Env, _finalizeCallback?: napi_finalize, _finalizeData?: void_p, _finalizeHint?: void_p);
+    callback(): napi_finalize;
+    data(): void_p;
+    hint(): void_p;
+    resetEnv(): void;
+    resetFinalizer(): void;
+    callFinalizer(): void;
+    dispose(): void;
+}
+
+export declare function getDefaultContext(): Context;
+
+/** @public */
+export declare function getExternalValue(external: External_2): number | bigint;
+
+export declare class Handle<S> {
+    id: number;
+    value: S;
+    constructor(id: number, value: S);
+    data(): void_p;
+    isNumber(): boolean;
+    isBigInt(): boolean;
+    isString(): boolean;
+    isFunction(): boolean;
+    isExternal(): boolean;
+    isObject(): boolean;
+    isArray(): boolean;
+    isArrayBuffer(): boolean;
+    isTypedArray(): boolean;
+    isBuffer(BufferConstructor?: BufferCtor): boolean;
+    isDataView(): boolean;
+    isDate(): boolean;
+    isPromise(): boolean;
+    isBoolean(): boolean;
+    isUndefined(): boolean;
+    isSymbol(): boolean;
+    isNull(): boolean;
+    dispose(): void;
+}
+
+export declare class HandleScope {
+    handleStore: HandleStore;
+    id: number;
+    parent: HandleScope | null;
+    child: HandleScope | null;
+    start: number;
+    end: number;
+    private _escapeCalled;
+    callbackInfo: ICallbackInfo;
+    constructor(handleStore: HandleStore, id: number, parentScope: HandleScope | null, start: number, end?: number);
+    add<V>(value: V): Handle<V>;
+    addExternal(data: void_p): Handle<object>;
+    dispose(): void;
+    escape(handle: number): Handle<any> | null;
+    escapeCalled(): boolean;
+}
+
+export declare class HandleStore {
+    static UNDEFINED: ConstHandle<undefined>;
+    static NULL: ConstHandle<null>;
+    static FALSE: ConstHandle<false>;
+    static TRUE: ConstHandle<true>;
+    static GLOBAL: ConstHandle<typeof globalThis>;
+    static MIN_ID: 6;
+    private readonly _values;
+    private _next;
+    push<S>(value: S): Handle<S>;
+    erase(start: number, end: number): void;
+    get(id: Ptr): Handle<any> | undefined;
+    swap(a: number, b: number): void;
+    dispose(): void;
+}
+
+export declare interface ICallbackInfo {
+    thiz: any;
+    data: void_p;
+    args: ArrayLike<any>;
+    fn: Function;
+}
+
+export declare interface IDeferrdValue<T = any> {
+    resolve: (value: T) => void;
+    reject: (reason?: any) => void;
+}
+
+export declare interface IReferenceBinding {
+    wrapped: number;
+    tag: Uint32Array | null;
+}
+
+/** @public */
+export declare function isExternal(object: unknown): object is External_2;
+
+export declare function isReferenceType(v: any): v is object;
+
+export declare interface IStoreValue {
+    id: number;
+    dispose(): void;
+    [x: string]: any;
+}
+
+export declare const NAPI_VERSION_EXPERIMENTAL = Version.NAPI_VERSION_EXPERIMENTAL;
+
+export declare const NODE_API_DEFAULT_MODULE_API_VERSION = Version.NODE_API_DEFAULT_MODULE_API_VERSION;
+
+export declare const NODE_API_SUPPORTED_VERSION_MAX = Version.NODE_API_SUPPORTED_VERSION_MAX;
+
+export declare const NODE_API_SUPPORTED_VERSION_MIN = Version.NODE_API_SUPPORTED_VERSION_MIN;
+
+export declare class NodeEnv extends Env {
+    filename: string;
+    private readonly nodeBinding?;
+    destructing: boolean;
+    finalizationScheduled: boolean;
+    constructor(ctx: Context, filename: string, moduleApiVersion: number, makeDynCall_vppp: (cb: Ptr) => (a: Ptr, b: Ptr, c: Ptr) => void, makeDynCall_vp: (cb: Ptr) => (a: Ptr) => void, abort: (msg?: string) => never, nodeBinding?: any);
+    deleteMe(): void;
+    canCallIntoJs(): boolean;
+    triggerFatalException(err: any): void;
+    callbackIntoModule<T>(enforceUncaughtExceptionPolicy: boolean, fn: (env: Env) => T): T;
+    callFinalizer(cb: napi_finalize, data: void_p, hint: void_p): void;
+    callFinalizerInternal(forceUncaught: int, cb: napi_finalize, data: void_p, hint: void_p): void;
+    enqueueFinalizer(finalizer: RefTracker): void;
+    drainFinalizerQueue(): void;
+}
+
+export declare class NotSupportBufferError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class NotSupportWeakRefError extends EmnapiError {
+    constructor(api: string, message: string);
+}
+
+export declare class Persistent<T> {
+    private _ref;
+    private _param;
+    private _callback;
+    private static readonly _registry;
+    constructor(value: T);
+    setWeak<P>(param: P, callback: (param: P) => void): void;
+    clearWeak(): void;
+    reset(): void;
+    isEmpty(): boolean;
+    deref(): T | undefined;
+}
+
+export declare class Reference extends RefTracker implements IStoreValue {
+    private static weakCallback;
+    id: number;
+    envObject: Env;
+    private readonly canBeWeak;
+    private _refcount;
+    private readonly _ownership;
+    persistent: Persistent<object>;
+    static create(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, _unused1?: void_p, _unused2?: void_p, _unused3?: void_p): Reference;
+    protected constructor(envObject: Env, handle_id: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership);
+    ref(): number;
+    unref(): number;
+    get(envObject?: Env): napi_value;
+    /** @virtual */
+    resetFinalizer(): void;
+    /** @virtual */
+    data(): void_p;
+    refcount(): number;
+    ownership(): ReferenceOwnership;
+    /** @virtual */
+    protected callUserFinalizer(): void;
+    /** @virtual */
+    protected invokeFinalizerFromGC(): void;
+    private _setWeak;
+    finalize(): void;
+    dispose(): void;
+}
+
+export declare enum ReferenceOwnership {
+    kRuntime = 0,
+    kUserland = 1
+}
+
+export declare class ReferenceWithData extends Reference {
+    private readonly _data;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, data: void_p): ReferenceWithData;
+    private constructor();
+    data(): void_p;
+}
+
+export declare class ReferenceWithFinalizer extends Reference {
+    private _finalizer;
+    static create(envObject: Env, value: napi_value, initialRefcount: uint32_t, ownership: ReferenceOwnership, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): ReferenceWithFinalizer;
+    private constructor();
+    resetFinalizer(): void;
+    data(): void_p;
+    protected callUserFinalizer(): void;
+    protected invokeFinalizerFromGC(): void;
+    dispose(): void;
+}
+
+export declare class RefTracker {
+    /** @virtual */
+    dispose(): void;
+    /** @virtual */
+    finalize(): void;
+    private _next;
+    private _prev;
+    link(list: RefTracker): void;
+    unlink(): void;
+    static finalizeAll(list: RefTracker): void;
+}
+
+export declare class ScopeStore {
+    private readonly _rootScope;
+    currentScope: HandleScope;
+    private readonly _values;
+    constructor();
+    get(id: number): HandleScope | undefined;
+    openScope(handleStore: HandleStore): HandleScope;
+    closeScope(): void;
+    dispose(): void;
+}
+
+export declare class Store<V extends IStoreValue> {
+    protected _values: Array<V | undefined>;
+    private _freeList;
+    private _size;
+    constructor();
+    add(value: V): void;
+    get(id: Ptr): V | undefined;
+    has(id: Ptr): boolean;
+    remove(id: Ptr): void;
+    dispose(): void;
+}
+
+export declare class TrackedFinalizer extends RefTracker {
+    private _finalizer;
+    static create(envObject: Env, finalize_callback: napi_finalize, finalize_data: void_p, finalize_hint: void_p): TrackedFinalizer;
+    private constructor();
+    data(): void_p;
+    dispose(): void;
+    finalize(): void;
+}
+
+export declare class TryCatch {
+    private _exception;
+    private _caught;
+    isEmpty(): boolean;
+    hasCaught(): boolean;
+    exception(): any;
+    setError(err: any): void;
+    reset(): void;
+    extractException(): any;
+}
+
+export declare const version: string;
+
+export { }
@@ -0,0 +1,5 @@
+if (typeof process !== 'undefined' && process.env.NODE_ENV === 'production') {
+  module.exports = require('./dist/emnapi.cjs.min.js')
+} else {
+  module.exports = require('./dist/emnapi.cjs.js')
+}
@@ -0,0 +1,48 @@
+{
+  "name": "@emnapi/runtime",
+  "version": "1.10.0",
+  "description": "emnapi runtime",
+  "main": "index.js",
+  "module": "./dist/emnapi.esm-bundler.js",
+  "types": "./dist/emnapi.d.ts",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "types": {
+        "module": "./dist/emnapi.d.ts",
+        "import": "./dist/emnapi.d.mts",
+        "default": "./dist/emnapi.d.ts"
+      },
+      "module": "./dist/emnapi.esm-bundler.js",
+      "import": "./dist/emnapi.mjs",
+      "default": "./index.js"
+    },
+    "./dist/emnapi.cjs.min": {
+      "types": "./dist/emnapi.d.ts",
+      "default": "./dist/emnapi.cjs.min.js"
+    },
+    "./dist/emnapi.min.mjs": {
+      "types": "./dist/emnapi.d.mts",
+      "default": "./dist/emnapi.min.mjs"
+    }
+  },
+  "dependencies": {
+    "tslib": "^2.4.0"
+  },
+  "scripts": {
+    "build": "node ./script/build.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/toyobayashi/emnapi.git"
+  },
+  "author": "toyobayashi",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/toyobayashi/emnapi/issues"
+  },
+  "homepage": "https://github.com/toyobayashi/emnapi#readme",
+  "publishConfig": {
+    "access": "public"
+  }
+}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021-present Toyobayashi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1,203 @@
+# @emnapi/wasi-threads
+
+This package makes [wasi-threads proposal](https://github.com/WebAssembly/wasi-threads) based WASI modules work in Node.js and browser.
+
+## Quick Start
+
+`index.html`
+
+```html
+<script src="./node_modules/@tybys/wasm-util/dist/wasm-util.js"></script>
+<script src="./node_modules/@emnapi/wasi-threads/dist/wasi-threads.js"></script>
+<script src="./index.js"></script>
+```
+
+If your application will block browser main thread (for example `pthread_join`), please run it in worker instead.
+
+```html
+<script>
+  // pthread_join (Atomics.wait) cannot be called in browser main thread
+  new Worker('./index.js')
+</script>
+```
+
+`index.js`
+
+```js
+const ENVIRONMENT_IS_NODE =
+  typeof process === 'object' && process !== null &&
+  typeof process.versions === 'object' && process.versions !== null &&
+  typeof process.versions.node === 'string';
+
+(function (main) {
+  if (ENVIRONMENT_IS_NODE) {
+    main(require)
+  } else {
+    if (typeof importScripts === 'function') {
+      importScripts('./node_modules/@tybys/wasm-util/dist/wasm-util.js')
+      importScripts('./node_modules/@emnapi/wasi-threads/dist/wasi-threads.js')
+    }
+    const nodeWasi = { WASI: globalThis.wasmUtil.WASI }
+    const nodeWorkerThreads = {
+      Worker: globalThis.Worker
+    }
+    const _require = function (request) {
+      if (request === 'node:wasi' || request === 'wasi') return nodeWasi
+      if (request === 'node:worker_threads' || request === 'worker_threads') return nodeWorkerThreads
+      if (request === '@emnapi/wasi-threads') return globalThis.wasiThreads
+      throw new Error('Can not find module: ' + request)
+    }
+    main(_require)
+  }
+})(async function (require) {
+  const { WASI } = require('wasi')
+  const { Worker } = require('worker_threads')
+  const { WASIThreads } = require('@emnapi/wasi-threads')
+
+  const wasi = new WASI({
+    version: 'preview1'
+  })
+  const wasiThreads = new WASIThreads({
+    wasi,
+
+    /**
+     * avoid Atomics.wait() deadlock during thread creation in browser
+     * see https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size
+     */
+    reuseWorker: ENVIRONMENT_IS_NODE
+      ? false
+      : {
+          size: 4 /** greater than actual needs (2) */,
+          strict: true
+        },
+
+    /**
+     * Synchronous thread creation
+     * pthread_create will not return until thread worker actually starts
+     */
+    waitThreadStart: typeof window === 'undefined' ? 1000 : false,
+
+    onCreateWorker: () => {
+      return new Worker('./worker.js', {
+        execArgv: ['--experimental-wasi-unstable-preview1']
+      })
+    }
+  })
+  const memory = new WebAssembly.Memory({
+    initial: 16777216 / 65536,
+    maximum: 2147483648 / 65536,
+    shared: true
+  })
+  let input
+  const file = 'path/to/your/wasi-module.wasm'
+  try {
+    input = require('fs').readFileSync(require('path').join(__dirname, file))
+  } catch (err) {
+    const response = await fetch(file)
+    input = await response.arrayBuffer()
+  }
+  let { module, instance } = await WebAssembly.instantiate(input, {
+    env: { memory },
+    wasi_snapshot_preview1: wasi.wasiImport,
+    ...wasiThreads.getImportObject()
+  })
+
+  wasiThreads.setup(instance, module, memory)
+  await wasiThreads.preloadWorkers()
+
+  if (typeof instance.exports._start === 'function') {
+    return wasi.start(instance)
+  } else {
+    wasi.initialize(instance)
+    // instance.exports.exported_wasm_function()
+  }
+})
+```
+
+`worker.js`
+
+```js
+(function (main) {
+  const ENVIRONMENT_IS_NODE =
+    typeof process === 'object' && process !== null &&
+    typeof process.versions === 'object' && process.versions !== null &&
+    typeof process.versions.node === 'string'
+
+  if (ENVIRONMENT_IS_NODE) {
+    const _require = function (request) {
+      return require(request)
+    }
+
+    const _init = function () {
+      const nodeWorkerThreads = require('worker_threads')
+      const parentPort = nodeWorkerThreads.parentPort
+
+      parentPort.on('message', (data) => {
+        globalThis.onmessage({ data })
+      })
+
+      Object.assign(globalThis, {
+        self: globalThis,
+        require,
+        Worker: nodeWorkerThreads.Worker,
+        importScripts: function (f) {
+          (0, eval)(require('fs').readFileSync(f, 'utf8') + '//# sourceURL=' + f)
+        },
+        postMessage: function (msg) {
+          parentPort.postMessage(msg)
+        }
+      })
+    }
+
+    main(_require, _init)
+  } else {
+    importScripts('./node_modules/@tybys/wasm-util/dist/wasm-util.js')
+    importScripts('./node_modules/@emnapi/wasi-threads/dist/wasi-threads.js')
+
+    const nodeWasi = { WASI: globalThis.wasmUtil.WASI }
+    const _require = function (request) {
+      if (request === '@emnapi/wasi-threads') return globalThis.wasiThreads
+      if (request === 'node:wasi' || request === 'wasi') return nodeWasi
+      throw new Error('Can not find module: ' + request)
+    }
+    const _init = function () {}
+    main(_require, _init)
+  }
+})(function main (require, init) {
+  init()
+
+  const { WASI } = require('wasi')
+  const { ThreadMessageHandler, WASIThreads } = require('@emnapi/wasi-threads')
+
+  const handler = new ThreadMessageHandler({
+    async onLoad ({ wasmModule, wasmMemory }) {
+      const wasi = new WASI({
+        version: 'preview1'
+      })
+
+      const wasiThreads = new WASIThreads({
+        wasi,
+        childThread: true
+      })
+
+      const originalInstance = await WebAssembly.instantiate(wasmModule, {
+        env: {
+          memory: wasmMemory,
+        },
+        wasi_snapshot_preview1: wasi.wasiImport,
+        ...wasiThreads.getImportObject()
+      })
+
+      // must call `initialize` instead of `start` in child thread
+      const instance = wasiThreads.initialize(originalInstance, wasmModule, wasmMemory)
+
+      return { module: wasmModule, instance }
+    }
+  })
+
+  globalThis.onmessage = function (e) {
+    handler.handle(e)
+    // handle other messages
+  }
+})
+```
@@ -0,0 +1,894 @@
+const _WebAssembly = typeof WebAssembly !== 'undefined'
+    ? WebAssembly
+    : typeof WXWebAssembly !== 'undefined'
+        ? WXWebAssembly
+        : undefined;
+const ENVIRONMENT_IS_NODE = typeof process === 'object' && process !== null &&
+    typeof process.versions === 'object' && process.versions !== null &&
+    typeof process.versions.node === 'string';
+function getPostMessage(options) {
+    return typeof (options === null || options === void 0 ? void 0 : options.postMessage) === 'function'
+        ? options.postMessage
+        : typeof postMessage === 'function'
+            ? postMessage
+            : undefined;
+}
+function serizeErrorToBuffer(sab, code, error) {
+    const i32array = new Int32Array(sab);
+    Atomics.store(i32array, 0, code);
+    if (code > 1 && error) {
+        const name = error.name;
+        const message = error.message;
+        const stack = error.stack;
+        const nameBuffer = new TextEncoder().encode(name);
+        const messageBuffer = new TextEncoder().encode(message);
+        const stackBuffer = new TextEncoder().encode(stack);
+        Atomics.store(i32array, 1, nameBuffer.length);
+        Atomics.store(i32array, 2, messageBuffer.length);
+        Atomics.store(i32array, 3, stackBuffer.length);
+        const buffer = new Uint8Array(sab);
+        buffer.set(nameBuffer, 16);
+        buffer.set(messageBuffer, 16 + nameBuffer.length);
+        buffer.set(stackBuffer, 16 + nameBuffer.length + messageBuffer.length);
+    }
+}
+function deserizeErrorFromBuffer(sab) {
+    var _a, _b;
+    const i32array = new Int32Array(sab);
+    const status = Atomics.load(i32array, 0);
+    if (status <= 1) {
+        return null;
+    }
+    const nameLength = Atomics.load(i32array, 1);
+    const messageLength = Atomics.load(i32array, 2);
+    const stackLength = Atomics.load(i32array, 3);
+    const buffer = new Uint8Array(sab);
+    const nameBuffer = buffer.slice(16, 16 + nameLength);
+    const messageBuffer = buffer.slice(16 + nameLength, 16 + nameLength + messageLength);
+    const stackBuffer = buffer.slice(16 + nameLength + messageLength, 16 + nameLength + messageLength + stackLength);
+    const name = new TextDecoder().decode(nameBuffer);
+    const message = new TextDecoder().decode(messageBuffer);
+    const stack = new TextDecoder().decode(stackBuffer);
+    const ErrorConstructor = (_a = globalThis[name]) !== null && _a !== void 0 ? _a : (name === 'RuntimeError' ? ((_b = _WebAssembly.RuntimeError) !== null && _b !== void 0 ? _b : Error) : Error);
+    const error = new ErrorConstructor(message);
+    Object.defineProperty(error, 'stack', {
+        value: stack,
+        writable: true,
+        enumerable: false,
+        configurable: true
+    });
+    return error;
+}
+function isSharedArrayBuffer(value) {
+    return ((typeof SharedArrayBuffer === 'function' && value instanceof SharedArrayBuffer) ||
+        (Object.prototype.toString.call(value) === '[object SharedArrayBuffer]'));
+}
+function isTrapError(e) {
+    try {
+        return e instanceof _WebAssembly.RuntimeError;
+    }
+    catch (_) {
+        return false;
+    }
+}
+
+function createMessage(type, payload) {
+    return {
+        __emnapi__: {
+            type,
+            payload
+        }
+    };
+}
+
+const WASI_THREADS_MAX_TID = 0x1FFFFFFF;
+function checkSharedWasmMemory(wasmMemory) {
+    if (wasmMemory) {
+        if (!isSharedArrayBuffer(wasmMemory.buffer)) {
+            throw new Error('Multithread features require shared wasm memory. ' +
+                'Try to compile with `-matomics -mbulk-memory` and use `--import-memory --shared-memory` during linking, ' +
+                'then create WebAssembly.Memory with `shared: true` option');
+        }
+    }
+    else {
+        if (typeof SharedArrayBuffer === 'undefined') {
+            throw new Error('Current environment does not support SharedArrayBuffer, threads are not available!');
+        }
+    }
+}
+function getReuseWorker(value) {
+    var _a;
+    if (typeof value === 'boolean') {
+        return value ? { size: 0, strict: false } : false;
+    }
+    if (typeof value === 'number') {
+        if (!(value >= 0)) {
+            throw new RangeError('reuseWorker: size must be a non-negative integer');
+        }
+        return { size: value, strict: false };
+    }
+    if (!value) {
+        return false;
+    }
+    const size = (_a = Number(value.size)) !== null && _a !== void 0 ? _a : 0;
+    const strict = Boolean(value.strict);
+    if (!(size > 0) && strict) {
+        throw new RangeError('reuseWorker: size must be set to positive integer if strict is set to true');
+    }
+    return { size, strict };
+}
+let nextWorkerID = 0;
+class ThreadManager {
+    get nextWorkerID() { return nextWorkerID; }
+    constructor(options) {
+        var _a;
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.wasmModule = null;
+        this.wasmMemory = null;
+        this.messageEvents = new WeakMap();
+        if (!options) {
+            throw new TypeError('ThreadManager(): options is not provided');
+        }
+        if ('childThread' in options) {
+            this._childThread = Boolean(options.childThread);
+        }
+        else {
+            this._childThread = false;
+        }
+        if (this._childThread) {
+            this._onCreateWorker = undefined;
+            this._reuseWorker = false;
+            this._beforeLoad = undefined;
+        }
+        else {
+            this._onCreateWorker = options.onCreateWorker;
+            this._reuseWorker = getReuseWorker(options.reuseWorker);
+            this._beforeLoad = options.beforeLoad;
+        }
+        this.printErr = (_a = options.printErr) !== null && _a !== void 0 ? _a : console.error.bind(console);
+        this.threadSpawn = options.threadSpawn;
+    }
+    init() {
+        if (!this._childThread) {
+            this.initMainThread();
+        }
+    }
+    initMainThread() {
+        this.preparePool();
+    }
+    preparePool() {
+        if (this._reuseWorker) {
+            if (this._reuseWorker.size) {
+                let pthreadPoolSize = this._reuseWorker.size;
+                while (pthreadPoolSize--) {
+                    const worker = this.allocateUnusedWorker();
+                    if (ENVIRONMENT_IS_NODE) {
+                        worker.once('message', () => { });
+                        worker.unref();
+                    }
+                }
+            }
+        }
+    }
+    shouldPreloadWorkers() {
+        return !this._childThread && this._reuseWorker && this._reuseWorker.size > 0;
+    }
+    loadWasmModuleToAllWorkers() {
+        const promises = Array(this.unusedWorkers.length);
+        for (let i = 0; i < this.unusedWorkers.length; ++i) {
+            const worker = this.unusedWorkers[i];
+            if (ENVIRONMENT_IS_NODE)
+                worker.ref();
+            promises[i] = this.loadWasmModuleToWorker(worker).then((w) => {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                return w;
+            }, (e) => {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                throw e;
+            });
+        }
+        return Promise.all(promises).catch((err) => {
+            this.terminateAllThreads();
+            throw err;
+        });
+    }
+    preloadWorkers() {
+        if (this.shouldPreloadWorkers()) {
+            return this.loadWasmModuleToAllWorkers();
+        }
+        return Promise.resolve([]);
+    }
+    setup(wasmModule, wasmMemory) {
+        this.wasmModule = wasmModule;
+        this.wasmMemory = wasmMemory;
+    }
+    markId(worker) {
+        if (worker.__emnapi_tid)
+            return worker.__emnapi_tid;
+        const tid = nextWorkerID + 43;
+        nextWorkerID = (nextWorkerID + 1) % (WASI_THREADS_MAX_TID - 42);
+        this.pthreads[tid] = worker;
+        worker.__emnapi_tid = tid;
+        return tid;
+    }
+    returnWorkerToPool(worker) {
+        var tid = worker.__emnapi_tid;
+        if (tid !== undefined) {
+            delete this.pthreads[tid];
+        }
+        this.unusedWorkers.push(worker);
+        this.runningWorkers.splice(this.runningWorkers.indexOf(worker), 1);
+        delete worker.__emnapi_tid;
+        if (ENVIRONMENT_IS_NODE) {
+            worker.unref();
+        }
+    }
+    loadWasmModuleToWorker(worker, sab) {
+        if (worker.whenLoaded)
+            return worker.whenLoaded;
+        const err = this.printErr;
+        const beforeLoad = this._beforeLoad;
+        const _this = this;
+        worker.whenLoaded = new Promise((resolve, reject) => {
+            const handleError = function (e) {
+                let message = 'worker sent an error!';
+                if (worker.__emnapi_tid !== undefined) {
+                    message = 'worker (tid = ' + worker.__emnapi_tid + ') sent an error!';
+                }
+                if ('message' in e) {
+                    err(message + ' ' + e.message);
+                    if (e.message.indexOf('RuntimeError') !== -1 || e.message.indexOf('unreachable') !== -1) {
+                        try {
+                            _this.terminateAllThreads();
+                        }
+                        catch (_) { }
+                    }
+                }
+                else {
+                    err(message);
+                }
+                reject(e);
+                throw e;
+            };
+            const handleMessage = (data) => {
+                if (data.__emnapi__) {
+                    const type = data.__emnapi__.type;
+                    const payload = data.__emnapi__.payload;
+                    if (type === 'loaded') {
+                        worker.loaded = true;
+                        if (ENVIRONMENT_IS_NODE && !worker.__emnapi_tid) {
+                            worker.unref();
+                        }
+                        resolve(worker);
+                    }
+                    else if (type === 'cleanup-thread') {
+                        if (payload.tid in this.pthreads) {
+                            this.cleanThread(worker, payload.tid);
+                        }
+                    }
+                    else if (type === 'spawn-thread') {
+                        this.threadSpawn(payload.startArg, payload.errorOrTid);
+                    }
+                    else if (type === 'terminate-all-threads') {
+                        this.terminateAllThreads();
+                    }
+                }
+            };
+            worker.onmessage = (e) => {
+                handleMessage(e.data);
+                this.fireMessageEvent(worker, e);
+            };
+            worker.onerror = handleError;
+            if (ENVIRONMENT_IS_NODE) {
+                worker.on('message', function (data) {
+                    var _a, _b;
+                    (_b = (_a = worker).onmessage) === null || _b === void 0 ? void 0 : _b.call(_a, {
+                        data
+                    });
+                });
+                worker.on('error', function (e) {
+                    var _a, _b;
+                    (_b = (_a = worker).onerror) === null || _b === void 0 ? void 0 : _b.call(_a, e);
+                });
+                worker.on('detachedExit', function () { });
+            }
+            if (typeof beforeLoad === 'function') {
+                beforeLoad(worker);
+            }
+            try {
+                worker.postMessage(createMessage('load', {
+                    wasmModule: this.wasmModule,
+                    wasmMemory: this.wasmMemory,
+                    sab
+                }));
+            }
+            catch (err) {
+                checkSharedWasmMemory(this.wasmMemory);
+                throw err;
+            }
+        });
+        return worker.whenLoaded;
+    }
+    allocateUnusedWorker() {
+        const _onCreateWorker = this._onCreateWorker;
+        if (typeof _onCreateWorker !== 'function') {
+            throw new TypeError('`options.onCreateWorker` is not provided');
+        }
+        const worker = _onCreateWorker({ type: 'thread', name: 'emnapi-pthread' });
+        this.unusedWorkers.push(worker);
+        return worker;
+    }
+    getNewWorker(sab) {
+        if (this._reuseWorker) {
+            if (this.unusedWorkers.length === 0) {
+                if (this._reuseWorker.strict) {
+                    if (!ENVIRONMENT_IS_NODE) {
+                        const err = this.printErr;
+                        err('Tried to spawn a new thread, but the thread pool is exhausted.\n' +
+                            'This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.');
+                        return;
+                    }
+                }
+                const worker = this.allocateUnusedWorker();
+                this.loadWasmModuleToWorker(worker, sab);
+            }
+            return this.unusedWorkers.pop();
+        }
+        const worker = this.allocateUnusedWorker();
+        this.loadWasmModuleToWorker(worker, sab);
+        return this.unusedWorkers.pop();
+    }
+    cleanThread(worker, tid, force) {
+        if (!force && this._reuseWorker) {
+            this.returnWorkerToPool(worker);
+        }
+        else {
+            delete this.pthreads[tid];
+            const index = this.runningWorkers.indexOf(worker);
+            if (index !== -1) {
+                this.runningWorkers.splice(index, 1);
+            }
+            this.terminateWorker(worker);
+            delete worker.__emnapi_tid;
+        }
+    }
+    terminateWorker(worker) {
+        var _a;
+        const tid = worker.__emnapi_tid;
+        worker.terminate();
+        (_a = this.messageEvents.get(worker)) === null || _a === void 0 ? void 0 : _a.clear();
+        this.messageEvents.delete(worker);
+        worker.onmessage = (e) => {
+            if (e.data.__emnapi__) {
+                const err = this.printErr;
+                err('received "' + e.data.__emnapi__.type + '" command from terminated worker: ' + tid);
+            }
+        };
+    }
+    terminateAllThreads() {
+        for (let i = 0; i < this.runningWorkers.length; ++i) {
+            this.terminateWorker(this.runningWorkers[i]);
+        }
+        for (let i = 0; i < this.unusedWorkers.length; ++i) {
+            this.terminateWorker(this.unusedWorkers[i]);
+        }
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.preparePool();
+    }
+    addMessageEventListener(worker, onMessage) {
+        let listeners = this.messageEvents.get(worker);
+        if (!listeners) {
+            listeners = new Set();
+            this.messageEvents.set(worker, listeners);
+        }
+        listeners.add(onMessage);
+        return () => {
+            listeners === null || listeners === void 0 ? void 0 : listeners.delete(onMessage);
+        };
+    }
+    fireMessageEvent(worker, e) {
+        const listeners = this.messageEvents.get(worker);
+        if (!listeners)
+            return;
+        const err = this.printErr;
+        listeners.forEach((listener) => {
+            try {
+                listener(e);
+            }
+            catch (e) {
+                err(e.stack);
+            }
+        });
+    }
+}
+
+const kIsProxy = Symbol('kIsProxy');
+function createInstanceProxy(instance, memory) {
+    if (instance[kIsProxy])
+        return instance;
+    const originalExports = instance.exports;
+    const createHandler = function (target) {
+        const handlers = [
+            'apply',
+            'construct',
+            'defineProperty',
+            'deleteProperty',
+            'get',
+            'getOwnPropertyDescriptor',
+            'getPrototypeOf',
+            'has',
+            'isExtensible',
+            'ownKeys',
+            'preventExtensions',
+            'set',
+            'setPrototypeOf'
+        ];
+        const handler = {};
+        for (let i = 0; i < handlers.length; i++) {
+            const name = handlers[i];
+            handler[name] = function () {
+                const args = Array.prototype.slice.call(arguments, 1);
+                args.unshift(target);
+                return Reflect[name].apply(Reflect, args);
+            };
+        }
+        return handler;
+    };
+    const handler = createHandler(originalExports);
+    const _initialize = () => { };
+    const _start = () => 0;
+    handler.get = function (_target, p, receiver) {
+        var _a;
+        if (p === 'memory') {
+            return (_a = (typeof memory === 'function' ? memory() : memory)) !== null && _a !== void 0 ? _a : Reflect.get(originalExports, p, receiver);
+        }
+        if (p === '_initialize') {
+            return p in originalExports ? _initialize : undefined;
+        }
+        if (p === '_start') {
+            return p in originalExports ? _start : undefined;
+        }
+        return Reflect.get(originalExports, p, receiver);
+    };
+    handler.has = function (_target, p) {
+        if (p === 'memory')
+            return true;
+        return Reflect.has(originalExports, p);
+    };
+    const exportsProxy = new Proxy(Object.create(null), handler);
+    return new Proxy(instance, {
+        get(target, p, receiver) {
+            if (p === 'exports') {
+                return exportsProxy;
+            }
+            if (p === kIsProxy) {
+                return true;
+            }
+            return Reflect.get(target, p, receiver);
+        }
+    });
+}
+
+const patchedWasiInstances = new WeakMap();
+class WASIThreads {
+    constructor(options) {
+        if (!options) {
+            throw new TypeError('WASIThreads(): options is not provided');
+        }
+        if (!options.wasi) {
+            throw new TypeError('WASIThreads(): options.wasi is not provided');
+        }
+        patchedWasiInstances.set(this, new WeakSet());
+        const wasi = options.wasi;
+        patchWasiInstance(this, wasi);
+        this.wasi = wasi;
+        if ('childThread' in options) {
+            this.childThread = Boolean(options.childThread);
+        }
+        else {
+            this.childThread = false;
+        }
+        this.PThread = undefined;
+        if ('threadManager' in options) {
+            if (typeof options.threadManager === 'function') {
+                this.PThread = options.threadManager();
+            }
+            else {
+                this.PThread = options.threadManager;
+            }
+        }
+        else {
+            if (!this.childThread) {
+                this.PThread = new ThreadManager(options);
+                this.PThread.init();
+            }
+        }
+        let waitThreadStart = false;
+        if ('waitThreadStart' in options) {
+            waitThreadStart = typeof options.waitThreadStart === 'number' ? options.waitThreadStart : Boolean(options.waitThreadStart);
+        }
+        const postMessage = getPostMessage(options);
+        if (this.childThread && typeof postMessage !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMessage;
+        const wasm64 = Boolean(options.wasm64);
+        const threadSpawn = (startArg, errorOrTid) => {
+            var _a;
+            const EAGAIN = 6;
+            const isNewABI = errorOrTid !== undefined;
+            try {
+                checkSharedWasmMemory(this.wasmMemory);
+            }
+            catch (err) {
+                (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.printErr(err.stack);
+                if (isNewABI) {
+                    const struct = new Int32Array(this.wasmMemory.buffer, errorOrTid, 2);
+                    Atomics.store(struct, 0, 1);
+                    Atomics.store(struct, 1, EAGAIN);
+                    Atomics.notify(struct, 1);
+                    return 1;
+                }
+                else {
+                    return -EAGAIN;
+                }
+            }
+            if (!isNewABI) {
+                const malloc = this.wasmInstance.exports.malloc;
+                errorOrTid = wasm64 ? Number(malloc(BigInt(8))) : (malloc(8) >>> 0);
+                if (!errorOrTid) {
+                    return -48;
+                }
+            }
+            const _free = this.wasmInstance.exports.free;
+            const free = wasm64 ? (ptr) => { _free(BigInt(ptr)); } : _free;
+            const struct = new Int32Array(this.wasmMemory.buffer, errorOrTid, 2);
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, 0);
+            if (this.childThread) {
+                postMessage(createMessage('spawn-thread', {
+                    startArg,
+                    errorOrTid: errorOrTid
+                }));
+                Atomics.wait(struct, 1, 0);
+                const isError = Atomics.load(struct, 0);
+                const result = Atomics.load(struct, 1);
+                if (isNewABI) {
+                    return isError;
+                }
+                free(errorOrTid);
+                return isError ? -result : result;
+            }
+            const shouldWait = waitThreadStart || (waitThreadStart === 0);
+            let sab;
+            if (shouldWait) {
+                sab = new Int32Array(new SharedArrayBuffer(16 + 8192));
+                Atomics.store(sab, 0, 0);
+            }
+            let worker;
+            let tid;
+            const PThread = this.PThread;
+            try {
+                worker = PThread.getNewWorker(sab);
+                if (!worker) {
+                    throw new Error('failed to get new worker');
+                }
+                tid = PThread.markId(worker);
+                if (ENVIRONMENT_IS_NODE) {
+                    worker.unref();
+                }
+                worker.postMessage(createMessage('start', {
+                    tid,
+                    arg: startArg,
+                    sab
+                }));
+                if (shouldWait) {
+                    if (typeof waitThreadStart === 'number') {
+                        const waitResult = Atomics.wait(sab, 0, 0, waitThreadStart);
+                        if (waitResult === 'timed-out') {
+                            try {
+                                PThread.cleanThread(worker, tid, true);
+                            }
+                            catch (_) { }
+                            throw new Error('Spawning thread timed out. Please check if the worker is created successfully and if message is handled properly in the worker.');
+                        }
+                    }
+                    else {
+                        Atomics.wait(sab, 0, 0);
+                    }
+                    const r = Atomics.load(sab, 0);
+                    if (r > 1) {
+                        try {
+                            PThread.cleanThread(worker, tid, true);
+                        }
+                        catch (_) { }
+                        throw deserizeErrorFromBuffer(sab.buffer);
+                    }
+                }
+            }
+            catch (e) {
+                Atomics.store(struct, 0, 1);
+                Atomics.store(struct, 1, EAGAIN);
+                Atomics.notify(struct, 1);
+                PThread === null || PThread === void 0 ? void 0 : PThread.printErr(e.stack);
+                if (isNewABI) {
+                    return 1;
+                }
+                free(errorOrTid);
+                return -EAGAIN;
+            }
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, tid);
+            Atomics.notify(struct, 1);
+            PThread.runningWorkers.push(worker);
+            if (!shouldWait) {
+                worker.whenLoaded.catch((err) => {
+                    delete worker.whenLoaded;
+                    PThread.cleanThread(worker, tid, true);
+                    throw err;
+                });
+            }
+            if (isNewABI) {
+                return 0;
+            }
+            free(errorOrTid);
+            return tid;
+        };
+        this.threadSpawn = threadSpawn;
+        if (this.PThread) {
+            this.PThread.threadSpawn = threadSpawn;
+        }
+    }
+    getImportObject() {
+        return {
+            wasi: {
+                'thread-spawn': this.threadSpawn
+            }
+        };
+    }
+    setup(wasmInstance, wasmModule, wasmMemory) {
+        wasmMemory !== null && wasmMemory !== void 0 ? wasmMemory : (wasmMemory = wasmInstance.exports.memory);
+        this.wasmInstance = wasmInstance;
+        this.wasmMemory = wasmMemory;
+        if (this.PThread) {
+            this.PThread.setup(wasmModule, wasmMemory);
+        }
+    }
+    preloadWorkers() {
+        if (this.PThread) {
+            return this.PThread.preloadWorkers();
+        }
+        return Promise.resolve([]);
+    }
+    initialize(instance, module, memory) {
+        const exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        const wasi = this.wasi;
+        if (('_start' in exports$1) && (typeof exports$1._start === 'function')) {
+            if (this.childThread) {
+                wasi.start(instance);
+                try {
+                    const kStarted = getWasiSymbol(wasi, 'kStarted');
+                    wasi[kStarted] = false;
+                }
+                catch (_) { }
+            }
+            else {
+                setupInstance(wasi, instance);
+            }
+        }
+        else {
+            wasi.initialize(instance);
+        }
+        return instance;
+    }
+    start(instance, module, memory) {
+        const exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        const exitCode = this.wasi.start(instance);
+        return { exitCode, instance };
+    }
+    terminateAllThreads() {
+        var _a;
+        if (!this.childThread) {
+            (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.terminateAllThreads();
+        }
+        else {
+            this.postMessage(createMessage('terminate-all-threads', {}));
+        }
+    }
+}
+function patchWasiInstance(wasiThreads, wasi) {
+    const patched = patchedWasiInstances.get(wasiThreads);
+    if (patched.has(wasi)) {
+        return;
+    }
+    const _this = wasiThreads;
+    const wasiImport = wasi.wasiImport;
+    if (wasiImport) {
+        const proc_exit = wasiImport.proc_exit;
+        wasiImport.proc_exit = function (code) {
+            _this.terminateAllThreads();
+            return proc_exit.call(this, code);
+        };
+    }
+    if (!_this.childThread) {
+        const start = wasi.start;
+        if (typeof start === 'function') {
+            wasi.start = function (instance) {
+                try {
+                    return start.call(this, instance);
+                }
+                catch (err) {
+                    if (isTrapError(err)) {
+                        _this.terminateAllThreads();
+                    }
+                    throw err;
+                }
+            };
+        }
+    }
+    patched.add(wasi);
+}
+function getWasiSymbol(wasi, description) {
+    const symbols = Object.getOwnPropertySymbols(wasi);
+    const selectDescription = (description) => (s) => {
+        if (s.description) {
+            return s.description === description;
+        }
+        return s.toString() === `Symbol(${description})`;
+    };
+    if (Array.isArray(description)) {
+        return description.map(d => symbols.filter(selectDescription(d))[0]);
+    }
+    return symbols.filter(selectDescription(description))[0];
+}
+function setupInstance(wasi, instance) {
+    const [kInstance, kSetMemory] = getWasiSymbol(wasi, ['kInstance', 'kSetMemory']);
+    wasi[kInstance] = instance;
+    wasi[kSetMemory](instance.exports.memory);
+}
+
+class ThreadMessageHandler {
+    constructor(options) {
+        const postMsg = getPostMessage(options);
+        if (typeof postMsg !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMsg;
+        this.onLoad = options === null || options === void 0 ? void 0 : options.onLoad;
+        this.onError = typeof (options === null || options === void 0 ? void 0 : options.onError) === 'function' ? options.onError : (_type, err) => { throw err; };
+        this.instance = undefined;
+        this.messagesBeforeLoad = [];
+    }
+    instantiate(data) {
+        if (typeof this.onLoad === 'function') {
+            return this.onLoad(data);
+        }
+        throw new Error('ThreadMessageHandler.prototype.instantiate is not implemented');
+    }
+    handle(e) {
+        var _a;
+        if ((_a = e === null || e === void 0 ? void 0 : e.data) === null || _a === void 0 ? void 0 : _a.__emnapi__) {
+            const type = e.data.__emnapi__.type;
+            const payload = e.data.__emnapi__.payload;
+            try {
+                if (type === 'load') {
+                    this._load(payload);
+                }
+                else if (type === 'start') {
+                    this.handleAfterLoad(e, () => {
+                        this._start(payload);
+                    });
+                }
+            }
+            catch (err) {
+                this.onError(err, type);
+            }
+        }
+    }
+    _load(payload) {
+        if (this.instance !== undefined)
+            return;
+        let source;
+        try {
+            source = this.instantiate(payload);
+        }
+        catch (err) {
+            this._loaded(err, null, payload);
+            return;
+        }
+        const then = source && 'then' in source ? source.then : undefined;
+        if (typeof then === 'function') {
+            then.call(source, (source) => { this._loaded(null, source, payload); }, (err) => { this._loaded(err, null, payload); });
+        }
+        else {
+            this._loaded(null, source, payload);
+        }
+    }
+    _start(payload) {
+        const wasi_thread_start = this.instance.exports.wasi_thread_start;
+        if (typeof wasi_thread_start !== 'function') {
+            const err = new TypeError('wasi_thread_start is not exported');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        const postMessage = this.postMessage;
+        const tid = payload.tid;
+        const startArg = payload.arg;
+        notifyPthreadCreateResult(payload.sab, 1);
+        try {
+            wasi_thread_start(tid, startArg);
+        }
+        catch (err) {
+            if (err !== 'unwind') {
+                throw err;
+            }
+            else {
+                return;
+            }
+        }
+        postMessage(createMessage('cleanup-thread', { tid }));
+    }
+    _loaded(err, source, payload) {
+        if (err) {
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        if (source == null) {
+            const err = new TypeError('onLoad should return an object');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        const instance = source.instance;
+        if (!instance) {
+            const err = new TypeError('onLoad should return an object which includes "instance"');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        this.instance = instance;
+        const postMessage = this.postMessage;
+        postMessage(createMessage('loaded', {}));
+        const messages = this.messagesBeforeLoad;
+        this.messagesBeforeLoad = [];
+        for (let i = 0; i < messages.length; i++) {
+            const data = messages[i];
+            this.handle({ data });
+        }
+    }
+    handleAfterLoad(e, f) {
+        if (this.instance !== undefined) {
+            f.call(this, e);
+        }
+        else {
+            this.messagesBeforeLoad.push(e.data);
+        }
+    }
+}
+function notifyPthreadCreateResult(sab, result, error) {
+    if (sab) {
+        serizeErrorToBuffer(sab.buffer, result, error);
+        Atomics.notify(sab, 0);
+    }
+}
+
+exports.ThreadManager = ThreadManager;
+exports.ThreadMessageHandler = ThreadMessageHandler;
+exports.WASIThreads = WASIThreads;
+exports.createInstanceProxy = createInstanceProxy;
+exports.isSharedArrayBuffer = isSharedArrayBuffer;
+exports.isTrapError = isTrapError;
@@ -0,0 +1,272 @@
+/// <reference types="node" />
+
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,272 @@
+/// <reference types="node" />
+
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,274 @@
+/// <reference types="node" />
+
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
+
+export as namespace wasiThreads;
@@ -0,0 +1,942 @@
+var _WebAssembly = typeof WebAssembly !== 'undefined'
+    ? WebAssembly
+    : typeof WXWebAssembly !== 'undefined'
+        ? WXWebAssembly
+        : undefined;
+var ENVIRONMENT_IS_NODE = typeof process === 'object' && process !== null &&
+    typeof process.versions === 'object' && process.versions !== null &&
+    typeof process.versions.node === 'string';
+function getPostMessage(options) {
+    return typeof (options === null || options === void 0 ? void 0 : options.postMessage) === 'function'
+        ? options.postMessage
+        : typeof postMessage === 'function'
+            ? postMessage
+            : undefined;
+}
+function serizeErrorToBuffer(sab, code, error) {
+    var i32array = new Int32Array(sab);
+    Atomics.store(i32array, 0, code);
+    if (code > 1 && error) {
+        var name_1 = error.name;
+        var message = error.message;
+        var stack = error.stack;
+        var nameBuffer = new TextEncoder().encode(name_1);
+        var messageBuffer = new TextEncoder().encode(message);
+        var stackBuffer = new TextEncoder().encode(stack);
+        Atomics.store(i32array, 1, nameBuffer.length);
+        Atomics.store(i32array, 2, messageBuffer.length);
+        Atomics.store(i32array, 3, stackBuffer.length);
+        var buffer = new Uint8Array(sab);
+        buffer.set(nameBuffer, 16);
+        buffer.set(messageBuffer, 16 + nameBuffer.length);
+        buffer.set(stackBuffer, 16 + nameBuffer.length + messageBuffer.length);
+    }
+}
+function deserizeErrorFromBuffer(sab) {
+    var _a, _b;
+    var i32array = new Int32Array(sab);
+    var status = Atomics.load(i32array, 0);
+    if (status <= 1) {
+        return null;
+    }
+    var nameLength = Atomics.load(i32array, 1);
+    var messageLength = Atomics.load(i32array, 2);
+    var stackLength = Atomics.load(i32array, 3);
+    var buffer = new Uint8Array(sab);
+    var nameBuffer = buffer.slice(16, 16 + nameLength);
+    var messageBuffer = buffer.slice(16 + nameLength, 16 + nameLength + messageLength);
+    var stackBuffer = buffer.slice(16 + nameLength + messageLength, 16 + nameLength + messageLength + stackLength);
+    var name = new TextDecoder().decode(nameBuffer);
+    var message = new TextDecoder().decode(messageBuffer);
+    var stack = new TextDecoder().decode(stackBuffer);
+    var ErrorConstructor = (_a = globalThis[name]) !== null && _a !== void 0 ? _a : (name === 'RuntimeError' ? ((_b = _WebAssembly.RuntimeError) !== null && _b !== void 0 ? _b : Error) : Error);
+    var error = new ErrorConstructor(message);
+    Object.defineProperty(error, 'stack', {
+        value: stack,
+        writable: true,
+        enumerable: false,
+        configurable: true
+    });
+    return error;
+}
+/** @public */
+function isSharedArrayBuffer(value) {
+    return ((typeof SharedArrayBuffer === 'function' && value instanceof SharedArrayBuffer) ||
+        (Object.prototype.toString.call(value) === '[object SharedArrayBuffer]'));
+}
+/** @public */
+function isTrapError(e) {
+    try {
+        return e instanceof _WebAssembly.RuntimeError;
+    }
+    catch (_) {
+        return false;
+    }
+}
+
+function createMessage(type, payload) {
+    return {
+        __emnapi__: {
+            type: type,
+            payload: payload
+        }
+    };
+}
+
+var WASI_THREADS_MAX_TID = 0x1FFFFFFF;
+function checkSharedWasmMemory(wasmMemory) {
+    if (wasmMemory) {
+        if (!isSharedArrayBuffer(wasmMemory.buffer)) {
+            throw new Error('Multithread features require shared wasm memory. ' +
+                'Try to compile with `-matomics -mbulk-memory` and use `--import-memory --shared-memory` during linking, ' +
+                'then create WebAssembly.Memory with `shared: true` option');
+        }
+    }
+    else {
+        if (typeof SharedArrayBuffer === 'undefined') {
+            throw new Error('Current environment does not support SharedArrayBuffer, threads are not available!');
+        }
+    }
+}
+function getReuseWorker(value) {
+    var _a;
+    if (typeof value === 'boolean') {
+        return value ? { size: 0, strict: false } : false;
+    }
+    if (typeof value === 'number') {
+        if (!(value >= 0)) {
+            throw new RangeError('reuseWorker: size must be a non-negative integer');
+        }
+        return { size: value, strict: false };
+    }
+    if (!value) {
+        return false;
+    }
+    var size = (_a = Number(value.size)) !== null && _a !== void 0 ? _a : 0;
+    var strict = Boolean(value.strict);
+    if (!(size > 0) && strict) {
+        throw new RangeError('reuseWorker: size must be set to positive integer if strict is set to true');
+    }
+    return { size: size, strict: strict };
+}
+var nextWorkerID = 0;
+/** @public */
+var ThreadManager = /*#__PURE__*/ (function () {
+    function ThreadManager(options) {
+        var _a;
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.wasmModule = null;
+        this.wasmMemory = null;
+        this.messageEvents = new WeakMap();
+        if (!options) {
+            throw new TypeError('ThreadManager(): options is not provided');
+        }
+        if ('childThread' in options) {
+            this._childThread = Boolean(options.childThread);
+        }
+        else {
+            this._childThread = false;
+        }
+        if (this._childThread) {
+            this._onCreateWorker = undefined;
+            this._reuseWorker = false;
+            this._beforeLoad = undefined;
+        }
+        else {
+            this._onCreateWorker = options.onCreateWorker;
+            this._reuseWorker = getReuseWorker(options.reuseWorker);
+            this._beforeLoad = options.beforeLoad;
+        }
+        this.printErr = (_a = options.printErr) !== null && _a !== void 0 ? _a : console.error.bind(console);
+        this.threadSpawn = options.threadSpawn;
+    }
+    Object.defineProperty(ThreadManager.prototype, "nextWorkerID", {
+        get: function () { return nextWorkerID; },
+        enumerable: false,
+        configurable: true
+    });
+    ThreadManager.prototype.init = function () {
+        if (!this._childThread) {
+            this.initMainThread();
+        }
+    };
+    ThreadManager.prototype.initMainThread = function () {
+        this.preparePool();
+    };
+    ThreadManager.prototype.preparePool = function () {
+        if (this._reuseWorker) {
+            if (this._reuseWorker.size) {
+                var pthreadPoolSize = this._reuseWorker.size;
+                while (pthreadPoolSize--) {
+                    var worker = this.allocateUnusedWorker();
+                    if (ENVIRONMENT_IS_NODE) {
+                        // https://github.com/nodejs/node/issues/53036
+                        worker.once('message', function () { });
+                        worker.unref();
+                    }
+                }
+            }
+        }
+    };
+    ThreadManager.prototype.shouldPreloadWorkers = function () {
+        return !this._childThread && this._reuseWorker && this._reuseWorker.size > 0;
+    };
+    ThreadManager.prototype.loadWasmModuleToAllWorkers = function () {
+        var _this_1 = this;
+        var promises = Array(this.unusedWorkers.length);
+        var _loop_1 = function (i) {
+            var worker = this_1.unusedWorkers[i];
+            if (ENVIRONMENT_IS_NODE)
+                worker.ref();
+            promises[i] = this_1.loadWasmModuleToWorker(worker).then(function (w) {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                return w;
+            }, function (e) {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                throw e;
+            });
+        };
+        var this_1 = this;
+        for (var i = 0; i < this.unusedWorkers.length; ++i) {
+            _loop_1(i);
+        }
+        return Promise.all(promises).catch(function (err) {
+            _this_1.terminateAllThreads();
+            throw err;
+        });
+    };
+    ThreadManager.prototype.preloadWorkers = function () {
+        if (this.shouldPreloadWorkers()) {
+            return this.loadWasmModuleToAllWorkers();
+        }
+        return Promise.resolve([]);
+    };
+    ThreadManager.prototype.setup = function (wasmModule, wasmMemory) {
+        this.wasmModule = wasmModule;
+        this.wasmMemory = wasmMemory;
+    };
+    ThreadManager.prototype.markId = function (worker) {
+        if (worker.__emnapi_tid)
+            return worker.__emnapi_tid;
+        var tid = nextWorkerID + 43;
+        nextWorkerID = (nextWorkerID + 1) % (WASI_THREADS_MAX_TID - 42);
+        this.pthreads[tid] = worker;
+        worker.__emnapi_tid = tid;
+        return tid;
+    };
+    ThreadManager.prototype.returnWorkerToPool = function (worker) {
+        var tid = worker.__emnapi_tid;
+        if (tid !== undefined) {
+            delete this.pthreads[tid];
+        }
+        this.unusedWorkers.push(worker);
+        this.runningWorkers.splice(this.runningWorkers.indexOf(worker), 1);
+        delete worker.__emnapi_tid;
+        if (ENVIRONMENT_IS_NODE) {
+            worker.unref();
+        }
+    };
+    ThreadManager.prototype.loadWasmModuleToWorker = function (worker, sab) {
+        var _this_1 = this;
+        if (worker.whenLoaded)
+            return worker.whenLoaded;
+        var err = this.printErr;
+        var beforeLoad = this._beforeLoad;
+        // eslint-disable-next-line @typescript-eslint/no-this-alias
+        var _this = this;
+        worker.whenLoaded = new Promise(function (resolve, reject) {
+            var handleError = function (e) {
+                var message = 'worker sent an error!';
+                if (worker.__emnapi_tid !== undefined) {
+                    message = 'worker (tid = ' + worker.__emnapi_tid + ') sent an error!';
+                }
+                if ('message' in e) {
+                    err(message + ' ' + e.message);
+                    if (e.message.indexOf('RuntimeError') !== -1 || e.message.indexOf('unreachable') !== -1) {
+                        try {
+                            _this.terminateAllThreads();
+                        }
+                        catch (_) { }
+                    }
+                }
+                else {
+                    err(message);
+                }
+                reject(e);
+                throw e;
+            };
+            var handleMessage = function (data) {
+                if (data.__emnapi__) {
+                    var type = data.__emnapi__.type;
+                    var payload = data.__emnapi__.payload;
+                    if (type === 'loaded') {
+                        worker.loaded = true;
+                        if (ENVIRONMENT_IS_NODE && !worker.__emnapi_tid) {
+                            worker.unref();
+                        }
+                        resolve(worker);
+                        // if (payload.err) {
+                        //   err('failed to load in child thread: ' + (payload.err.message || payload.err))
+                        // }
+                    }
+                    else if (type === 'cleanup-thread') {
+                        if (payload.tid in _this_1.pthreads) {
+                            _this_1.cleanThread(worker, payload.tid);
+                        }
+                    }
+                    else if (type === 'spawn-thread') {
+                        _this_1.threadSpawn(payload.startArg, payload.errorOrTid);
+                    }
+                    else if (type === 'terminate-all-threads') {
+                        _this_1.terminateAllThreads();
+                    }
+                }
+            };
+            worker.onmessage = function (e) {
+                handleMessage(e.data);
+                _this_1.fireMessageEvent(worker, e);
+            };
+            worker.onerror = handleError;
+            if (ENVIRONMENT_IS_NODE) {
+                worker.on('message', function (data) {
+                    var _a, _b;
+                    (_b = (_a = worker).onmessage) === null || _b === void 0 ? void 0 : _b.call(_a, {
+                        data: data
+                    });
+                });
+                worker.on('error', function (e) {
+                    var _a, _b;
+                    (_b = (_a = worker).onerror) === null || _b === void 0 ? void 0 : _b.call(_a, e);
+                });
+                worker.on('detachedExit', function () { });
+            }
+            if (typeof beforeLoad === 'function') {
+                beforeLoad(worker);
+            }
+            try {
+                worker.postMessage(createMessage('load', {
+                    wasmModule: _this_1.wasmModule,
+                    wasmMemory: _this_1.wasmMemory,
+                    sab: sab
+                }));
+            }
+            catch (err) {
+                checkSharedWasmMemory(_this_1.wasmMemory);
+                throw err;
+            }
+        });
+        return worker.whenLoaded;
+    };
+    ThreadManager.prototype.allocateUnusedWorker = function () {
+        var _onCreateWorker = this._onCreateWorker;
+        if (typeof _onCreateWorker !== 'function') {
+            throw new TypeError('`options.onCreateWorker` is not provided');
+        }
+        var worker = _onCreateWorker({ type: 'thread', name: 'emnapi-pthread' });
+        this.unusedWorkers.push(worker);
+        return worker;
+    };
+    ThreadManager.prototype.getNewWorker = function (sab) {
+        if (this._reuseWorker) {
+            if (this.unusedWorkers.length === 0) {
+                if (this._reuseWorker.strict) {
+                    if (!ENVIRONMENT_IS_NODE) {
+                        var err = this.printErr;
+                        err('Tried to spawn a new thread, but the thread pool is exhausted.\n' +
+                            'This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.');
+                        return;
+                    }
+                }
+                var worker_1 = this.allocateUnusedWorker();
+                // eslint-disable-next-line @typescript-eslint/no-floating-promises
+                this.loadWasmModuleToWorker(worker_1, sab);
+            }
+            return this.unusedWorkers.pop();
+        }
+        var worker = this.allocateUnusedWorker();
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        this.loadWasmModuleToWorker(worker, sab);
+        return this.unusedWorkers.pop();
+    };
+    ThreadManager.prototype.cleanThread = function (worker, tid, force) {
+        if (!force && this._reuseWorker) {
+            this.returnWorkerToPool(worker);
+        }
+        else {
+            delete this.pthreads[tid];
+            var index = this.runningWorkers.indexOf(worker);
+            if (index !== -1) {
+                this.runningWorkers.splice(index, 1);
+            }
+            this.terminateWorker(worker);
+            delete worker.__emnapi_tid;
+        }
+    };
+    ThreadManager.prototype.terminateWorker = function (worker) {
+        var _this_1 = this;
+        var _a;
+        var tid = worker.__emnapi_tid;
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        worker.terminate();
+        (_a = this.messageEvents.get(worker)) === null || _a === void 0 ? void 0 : _a.clear();
+        this.messageEvents.delete(worker);
+        worker.onmessage = function (e) {
+            if (e.data.__emnapi__) {
+                var err = _this_1.printErr;
+                err('received "' + e.data.__emnapi__.type + '" command from terminated worker: ' + tid);
+            }
+        };
+    };
+    ThreadManager.prototype.terminateAllThreads = function () {
+        for (var i = 0; i < this.runningWorkers.length; ++i) {
+            this.terminateWorker(this.runningWorkers[i]);
+        }
+        for (var i = 0; i < this.unusedWorkers.length; ++i) {
+            this.terminateWorker(this.unusedWorkers[i]);
+        }
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.preparePool();
+    };
+    ThreadManager.prototype.addMessageEventListener = function (worker, onMessage) {
+        var listeners = this.messageEvents.get(worker);
+        if (!listeners) {
+            listeners = new Set();
+            this.messageEvents.set(worker, listeners);
+        }
+        listeners.add(onMessage);
+        return function () {
+            listeners === null || listeners === void 0 ? void 0 : listeners.delete(onMessage);
+        };
+    };
+    ThreadManager.prototype.fireMessageEvent = function (worker, e) {
+        var listeners = this.messageEvents.get(worker);
+        if (!listeners)
+            return;
+        var err = this.printErr;
+        listeners.forEach(function (listener) {
+            try {
+                listener(e);
+            }
+            catch (e) {
+                err(e.stack);
+            }
+        });
+    };
+    return ThreadManager;
+}());
+
+var kIsProxy = Symbol('kIsProxy');
+/** @public */
+function createInstanceProxy(instance, memory) {
+    if (instance[kIsProxy])
+        return instance;
+    // https://github.com/nodejs/help/issues/4102
+    var originalExports = instance.exports;
+    var createHandler = function (target) {
+        var handlers = [
+            'apply',
+            'construct',
+            'defineProperty',
+            'deleteProperty',
+            'get',
+            'getOwnPropertyDescriptor',
+            'getPrototypeOf',
+            'has',
+            'isExtensible',
+            'ownKeys',
+            'preventExtensions',
+            'set',
+            'setPrototypeOf'
+        ];
+        var handler = {};
+        var _loop_1 = function (i) {
+            var name_1 = handlers[i];
+            handler[name_1] = function () {
+                var args = Array.prototype.slice.call(arguments, 1);
+                args.unshift(target);
+                return Reflect[name_1].apply(Reflect, args);
+            };
+        };
+        for (var i = 0; i < handlers.length; i++) {
+            _loop_1(i);
+        }
+        return handler;
+    };
+    var handler = createHandler(originalExports);
+    var _initialize = function () { };
+    var _start = function () { return 0; };
+    handler.get = function (_target, p, receiver) {
+        var _a;
+        if (p === 'memory') {
+            return (_a = (typeof memory === 'function' ? memory() : memory)) !== null && _a !== void 0 ? _a : Reflect.get(originalExports, p, receiver);
+        }
+        if (p === '_initialize') {
+            return p in originalExports ? _initialize : undefined;
+        }
+        if (p === '_start') {
+            return p in originalExports ? _start : undefined;
+        }
+        return Reflect.get(originalExports, p, receiver);
+    };
+    handler.has = function (_target, p) {
+        if (p === 'memory')
+            return true;
+        return Reflect.has(originalExports, p);
+    };
+    var exportsProxy = new Proxy(Object.create(null), handler);
+    return new Proxy(instance, {
+        get: function (target, p, receiver) {
+            if (p === 'exports') {
+                return exportsProxy;
+            }
+            if (p === kIsProxy) {
+                return true;
+            }
+            return Reflect.get(target, p, receiver);
+        }
+    });
+}
+
+var patchedWasiInstances = new WeakMap();
+/** @public */
+var WASIThreads = /*#__PURE__*/ (function () {
+    function WASIThreads(options) {
+        var _this_1 = this;
+        if (!options) {
+            throw new TypeError('WASIThreads(): options is not provided');
+        }
+        if (!options.wasi) {
+            throw new TypeError('WASIThreads(): options.wasi is not provided');
+        }
+        patchedWasiInstances.set(this, new WeakSet());
+        var wasi = options.wasi;
+        patchWasiInstance(this, wasi);
+        this.wasi = wasi;
+        if ('childThread' in options) {
+            this.childThread = Boolean(options.childThread);
+        }
+        else {
+            this.childThread = false;
+        }
+        this.PThread = undefined;
+        if ('threadManager' in options) {
+            if (typeof options.threadManager === 'function') {
+                this.PThread = options.threadManager();
+            }
+            else {
+                this.PThread = options.threadManager;
+            }
+        }
+        else {
+            if (!this.childThread) {
+                this.PThread = new ThreadManager(options);
+                this.PThread.init();
+            }
+        }
+        var waitThreadStart = false;
+        if ('waitThreadStart' in options) {
+            waitThreadStart = typeof options.waitThreadStart === 'number' ? options.waitThreadStart : Boolean(options.waitThreadStart);
+        }
+        var postMessage = getPostMessage(options);
+        if (this.childThread && typeof postMessage !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMessage;
+        var wasm64 = Boolean(options.wasm64);
+        var threadSpawn = function (startArg, errorOrTid) {
+            var _a;
+            var EAGAIN = 6;
+            var isNewABI = errorOrTid !== undefined;
+            try {
+                checkSharedWasmMemory(_this_1.wasmMemory);
+            }
+            catch (err) {
+                (_a = _this_1.PThread) === null || _a === void 0 ? void 0 : _a.printErr(err.stack);
+                if (isNewABI) {
+                    var struct_1 = new Int32Array(_this_1.wasmMemory.buffer, errorOrTid, 2);
+                    Atomics.store(struct_1, 0, 1);
+                    Atomics.store(struct_1, 1, EAGAIN);
+                    Atomics.notify(struct_1, 1);
+                    return 1;
+                }
+                else {
+                    return -EAGAIN;
+                }
+            }
+            if (!isNewABI) {
+                var malloc = _this_1.wasmInstance.exports.malloc;
+                errorOrTid = wasm64 ? Number(malloc(BigInt(8))) : (malloc(8) >>> 0);
+                if (!errorOrTid) {
+                    return -48; /* ENOMEM */
+                }
+            }
+            var _free = _this_1.wasmInstance.exports.free;
+            var free = wasm64 ? function (ptr) { _free(BigInt(ptr)); } : _free;
+            var struct = new Int32Array(_this_1.wasmMemory.buffer, errorOrTid, 2);
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, 0);
+            if (_this_1.childThread) {
+                postMessage(createMessage('spawn-thread', {
+                    startArg: startArg,
+                    errorOrTid: errorOrTid
+                }));
+                Atomics.wait(struct, 1, 0);
+                var isError = Atomics.load(struct, 0);
+                var result = Atomics.load(struct, 1);
+                if (isNewABI) {
+                    return isError;
+                }
+                free(errorOrTid);
+                return isError ? -result : result;
+            }
+            var shouldWait = waitThreadStart || (waitThreadStart === 0);
+            var sab;
+            if (shouldWait) {
+                sab = new Int32Array(new SharedArrayBuffer(16 + 8192));
+                Atomics.store(sab, 0, 0);
+            }
+            var worker;
+            var tid;
+            var PThread = _this_1.PThread;
+            try {
+                worker = PThread.getNewWorker(sab);
+                if (!worker) {
+                    throw new Error('failed to get new worker');
+                }
+                tid = PThread.markId(worker);
+                if (ENVIRONMENT_IS_NODE) {
+                    worker.unref();
+                }
+                worker.postMessage(createMessage('start', {
+                    tid: tid,
+                    arg: startArg,
+                    sab: sab
+                }));
+                if (shouldWait) {
+                    if (typeof waitThreadStart === 'number') {
+                        var waitResult = Atomics.wait(sab, 0, 0, waitThreadStart);
+                        if (waitResult === 'timed-out') {
+                            try {
+                                PThread.cleanThread(worker, tid, true);
+                            }
+                            catch (_) { }
+                            throw new Error('Spawning thread timed out. Please check if the worker is created successfully and if message is handled properly in the worker.');
+                        }
+                    }
+                    else {
+                        Atomics.wait(sab, 0, 0);
+                    }
+                    var r = Atomics.load(sab, 0);
+                    if (r > 1) {
+                        try {
+                            PThread.cleanThread(worker, tid, true);
+                        }
+                        catch (_) { }
+                        throw deserizeErrorFromBuffer(sab.buffer);
+                    }
+                }
+            }
+            catch (e) {
+                Atomics.store(struct, 0, 1);
+                Atomics.store(struct, 1, EAGAIN);
+                Atomics.notify(struct, 1);
+                PThread === null || PThread === void 0 ? void 0 : PThread.printErr(e.stack);
+                if (isNewABI) {
+                    return 1;
+                }
+                free(errorOrTid);
+                return -EAGAIN;
+            }
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, tid);
+            Atomics.notify(struct, 1);
+            PThread.runningWorkers.push(worker);
+            if (!shouldWait) {
+                worker.whenLoaded.catch(function (err) {
+                    delete worker.whenLoaded;
+                    PThread.cleanThread(worker, tid, true);
+                    throw err;
+                });
+            }
+            if (isNewABI) {
+                return 0;
+            }
+            free(errorOrTid);
+            return tid;
+        };
+        this.threadSpawn = threadSpawn;
+        if (this.PThread) {
+            this.PThread.threadSpawn = threadSpawn;
+        }
+    }
+    WASIThreads.prototype.getImportObject = function () {
+        return {
+            wasi: {
+                'thread-spawn': this.threadSpawn
+            }
+        };
+    };
+    WASIThreads.prototype.setup = function (wasmInstance, wasmModule, wasmMemory) {
+        wasmMemory !== null && wasmMemory !== void 0 ? wasmMemory : (wasmMemory = wasmInstance.exports.memory);
+        this.wasmInstance = wasmInstance;
+        this.wasmMemory = wasmMemory;
+        if (this.PThread) {
+            this.PThread.setup(wasmModule, wasmMemory);
+        }
+    };
+    WASIThreads.prototype.preloadWorkers = function () {
+        if (this.PThread) {
+            return this.PThread.preloadWorkers();
+        }
+        return Promise.resolve([]);
+    };
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    WASIThreads.prototype.initialize = function (instance, module, memory) {
+        var exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        var wasi = this.wasi;
+        if (('_start' in exports$1) && (typeof exports$1._start === 'function')) {
+            if (this.childThread) {
+                wasi.start(instance);
+                try {
+                    var kStarted = getWasiSymbol(wasi, 'kStarted');
+                    wasi[kStarted] = false;
+                }
+                catch (_) { }
+            }
+            else {
+                setupInstance(wasi, instance);
+            }
+        }
+        else {
+            wasi.initialize(instance);
+        }
+        return instance;
+    };
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    WASIThreads.prototype.start = function (instance, module, memory) {
+        var exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        var exitCode = this.wasi.start(instance);
+        return { exitCode: exitCode, instance: instance };
+    };
+    WASIThreads.prototype.terminateAllThreads = function () {
+        var _a;
+        if (!this.childThread) {
+            (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.terminateAllThreads();
+        }
+        else {
+            this.postMessage(createMessage('terminate-all-threads', {}));
+        }
+    };
+    return WASIThreads;
+}());
+function patchWasiInstance(wasiThreads, wasi) {
+    var patched = patchedWasiInstances.get(wasiThreads);
+    if (patched.has(wasi)) {
+        return;
+    }
+    var _this = wasiThreads;
+    var wasiImport = wasi.wasiImport;
+    if (wasiImport) {
+        var proc_exit_1 = wasiImport.proc_exit;
+        wasiImport.proc_exit = function (code) {
+            _this.terminateAllThreads();
+            return proc_exit_1.call(this, code);
+        };
+    }
+    if (!_this.childThread) {
+        var start_1 = wasi.start;
+        if (typeof start_1 === 'function') {
+            wasi.start = function (instance) {
+                try {
+                    return start_1.call(this, instance);
+                }
+                catch (err) {
+                    if (isTrapError(err)) {
+                        _this.terminateAllThreads();
+                    }
+                    throw err;
+                }
+            };
+        }
+    }
+    patched.add(wasi);
+}
+function getWasiSymbol(wasi, description) {
+    var symbols = Object.getOwnPropertySymbols(wasi);
+    var selectDescription = function (description) { return function (s) {
+        if (s.description) {
+            return s.description === description;
+        }
+        return s.toString() === "Symbol(".concat(description, ")");
+    }; };
+    if (Array.isArray(description)) {
+        return description.map(function (d) { return symbols.filter(selectDescription(d))[0]; });
+    }
+    return symbols.filter(selectDescription(description))[0];
+}
+function setupInstance(wasi, instance) {
+    var _a = getWasiSymbol(wasi, ['kInstance', 'kSetMemory']), kInstance = _a[0], kSetMemory = _a[1];
+    wasi[kInstance] = instance;
+    wasi[kSetMemory](instance.exports.memory);
+}
+
+/** @public */
+var ThreadMessageHandler = /*#__PURE__*/ (function () {
+    function ThreadMessageHandler(options) {
+        var postMsg = getPostMessage(options);
+        if (typeof postMsg !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMsg;
+        this.onLoad = options === null || options === void 0 ? void 0 : options.onLoad;
+        this.onError = typeof (options === null || options === void 0 ? void 0 : options.onError) === 'function' ? options.onError : function (_type, err) { throw err; };
+        this.instance = undefined;
+        // this.module = undefined
+        this.messagesBeforeLoad = [];
+    }
+    /** @virtual */
+    ThreadMessageHandler.prototype.instantiate = function (data) {
+        if (typeof this.onLoad === 'function') {
+            return this.onLoad(data);
+        }
+        throw new Error('ThreadMessageHandler.prototype.instantiate is not implemented');
+    };
+    /** @virtual */
+    ThreadMessageHandler.prototype.handle = function (e) {
+        var _this = this;
+        var _a;
+        if ((_a = e === null || e === void 0 ? void 0 : e.data) === null || _a === void 0 ? void 0 : _a.__emnapi__) {
+            var type = e.data.__emnapi__.type;
+            var payload_1 = e.data.__emnapi__.payload;
+            try {
+                if (type === 'load') {
+                    this._load(payload_1);
+                }
+                else if (type === 'start') {
+                    this.handleAfterLoad(e, function () {
+                        _this._start(payload_1);
+                    });
+                }
+            }
+            catch (err) {
+                this.onError(err, type);
+            }
+        }
+    };
+    ThreadMessageHandler.prototype._load = function (payload) {
+        var _this = this;
+        if (this.instance !== undefined)
+            return;
+        var source;
+        try {
+            source = this.instantiate(payload);
+        }
+        catch (err) {
+            this._loaded(err, null, payload);
+            return;
+        }
+        var then = source && 'then' in source ? source.then : undefined;
+        if (typeof then === 'function') {
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            then.call(source, function (source) { _this._loaded(null, source, payload); }, function (err) { _this._loaded(err, null, payload); });
+        }
+        else {
+            this._loaded(null, source, payload);
+        }
+    };
+    ThreadMessageHandler.prototype._start = function (payload) {
+        var wasi_thread_start = this.instance.exports.wasi_thread_start;
+        if (typeof wasi_thread_start !== 'function') {
+            var err = new TypeError('wasi_thread_start is not exported');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        var postMessage = this.postMessage;
+        var tid = payload.tid;
+        var startArg = payload.arg;
+        notifyPthreadCreateResult(payload.sab, 1);
+        try {
+            wasi_thread_start(tid, startArg);
+        }
+        catch (err) {
+            if (err !== 'unwind') {
+                throw err;
+            }
+            else {
+                return;
+            }
+        }
+        postMessage(createMessage('cleanup-thread', { tid: tid }));
+    };
+    ThreadMessageHandler.prototype._loaded = function (err, source, payload) {
+        if (err) {
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        if (source == null) {
+            var err_1 = new TypeError('onLoad should return an object');
+            notifyPthreadCreateResult(payload.sab, 2, err_1);
+            throw err_1;
+        }
+        var instance = source.instance;
+        if (!instance) {
+            var err_2 = new TypeError('onLoad should return an object which includes "instance"');
+            notifyPthreadCreateResult(payload.sab, 2, err_2);
+            throw err_2;
+        }
+        this.instance = instance;
+        var postMessage = this.postMessage;
+        postMessage(createMessage('loaded', {}));
+        var messages = this.messagesBeforeLoad;
+        this.messagesBeforeLoad = [];
+        for (var i = 0; i < messages.length; i++) {
+            var data = messages[i];
+            this.handle({ data: data });
+        }
+    };
+    ThreadMessageHandler.prototype.handleAfterLoad = function (e, f) {
+        if (this.instance !== undefined) {
+            f.call(this, e);
+        }
+        else {
+            this.messagesBeforeLoad.push(e.data);
+        }
+    };
+    return ThreadMessageHandler;
+}());
+function notifyPthreadCreateResult(sab, result, error) {
+    if (sab) {
+        serizeErrorToBuffer(sab.buffer, result, error);
+        Atomics.notify(sab, 0);
+    }
+}
+
+export { ThreadManager, ThreadMessageHandler, WASIThreads, createInstanceProxy, isSharedArrayBuffer, isTrapError };
@@ -0,0 +1,954 @@
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+    typeof define === 'function' && define.amd ? define(['exports'], factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.wasiThreads = {}));
+})(this, (function (exports) {
+    var _WebAssembly = typeof WebAssembly !== 'undefined'
+        ? WebAssembly
+        : typeof WXWebAssembly !== 'undefined'
+            ? WXWebAssembly
+            : undefined;
+    var ENVIRONMENT_IS_NODE = typeof process === 'object' && process !== null &&
+        typeof process.versions === 'object' && process.versions !== null &&
+        typeof process.versions.node === 'string';
+    function getPostMessage(options) {
+        return typeof (options === null || options === void 0 ? void 0 : options.postMessage) === 'function'
+            ? options.postMessage
+            : typeof postMessage === 'function'
+                ? postMessage
+                : undefined;
+    }
+    function serizeErrorToBuffer(sab, code, error) {
+        var i32array = new Int32Array(sab);
+        Atomics.store(i32array, 0, code);
+        if (code > 1 && error) {
+            var name_1 = error.name;
+            var message = error.message;
+            var stack = error.stack;
+            var nameBuffer = new TextEncoder().encode(name_1);
+            var messageBuffer = new TextEncoder().encode(message);
+            var stackBuffer = new TextEncoder().encode(stack);
+            Atomics.store(i32array, 1, nameBuffer.length);
+            Atomics.store(i32array, 2, messageBuffer.length);
+            Atomics.store(i32array, 3, stackBuffer.length);
+            var buffer = new Uint8Array(sab);
+            buffer.set(nameBuffer, 16);
+            buffer.set(messageBuffer, 16 + nameBuffer.length);
+            buffer.set(stackBuffer, 16 + nameBuffer.length + messageBuffer.length);
+        }
+    }
+    function deserizeErrorFromBuffer(sab) {
+        var _a, _b;
+        var i32array = new Int32Array(sab);
+        var status = Atomics.load(i32array, 0);
+        if (status <= 1) {
+            return null;
+        }
+        var nameLength = Atomics.load(i32array, 1);
+        var messageLength = Atomics.load(i32array, 2);
+        var stackLength = Atomics.load(i32array, 3);
+        var buffer = new Uint8Array(sab);
+        var nameBuffer = buffer.slice(16, 16 + nameLength);
+        var messageBuffer = buffer.slice(16 + nameLength, 16 + nameLength + messageLength);
+        var stackBuffer = buffer.slice(16 + nameLength + messageLength, 16 + nameLength + messageLength + stackLength);
+        var name = new TextDecoder().decode(nameBuffer);
+        var message = new TextDecoder().decode(messageBuffer);
+        var stack = new TextDecoder().decode(stackBuffer);
+        var ErrorConstructor = (_a = globalThis[name]) !== null && _a !== void 0 ? _a : (name === 'RuntimeError' ? ((_b = _WebAssembly.RuntimeError) !== null && _b !== void 0 ? _b : Error) : Error);
+        var error = new ErrorConstructor(message);
+        Object.defineProperty(error, 'stack', {
+            value: stack,
+            writable: true,
+            enumerable: false,
+            configurable: true
+        });
+        return error;
+    }
+    /** @public */
+    function isSharedArrayBuffer(value) {
+        return ((typeof SharedArrayBuffer === 'function' && value instanceof SharedArrayBuffer) ||
+            (Object.prototype.toString.call(value) === '[object SharedArrayBuffer]'));
+    }
+    /** @public */
+    function isTrapError(e) {
+        try {
+            return e instanceof _WebAssembly.RuntimeError;
+        }
+        catch (_) {
+            return false;
+        }
+    }
+
+    function createMessage(type, payload) {
+        return {
+            __emnapi__: {
+                type: type,
+                payload: payload
+            }
+        };
+    }
+
+    var WASI_THREADS_MAX_TID = 0x1FFFFFFF;
+    function checkSharedWasmMemory(wasmMemory) {
+        if (wasmMemory) {
+            if (!isSharedArrayBuffer(wasmMemory.buffer)) {
+                throw new Error('Multithread features require shared wasm memory. ' +
+                    'Try to compile with `-matomics -mbulk-memory` and use `--import-memory --shared-memory` during linking, ' +
+                    'then create WebAssembly.Memory with `shared: true` option');
+            }
+        }
+        else {
+            if (typeof SharedArrayBuffer === 'undefined') {
+                throw new Error('Current environment does not support SharedArrayBuffer, threads are not available!');
+            }
+        }
+    }
+    function getReuseWorker(value) {
+        var _a;
+        if (typeof value === 'boolean') {
+            return value ? { size: 0, strict: false } : false;
+        }
+        if (typeof value === 'number') {
+            if (!(value >= 0)) {
+                throw new RangeError('reuseWorker: size must be a non-negative integer');
+            }
+            return { size: value, strict: false };
+        }
+        if (!value) {
+            return false;
+        }
+        var size = (_a = Number(value.size)) !== null && _a !== void 0 ? _a : 0;
+        var strict = Boolean(value.strict);
+        if (!(size > 0) && strict) {
+            throw new RangeError('reuseWorker: size must be set to positive integer if strict is set to true');
+        }
+        return { size: size, strict: strict };
+    }
+    var nextWorkerID = 0;
+    /** @public */
+    var ThreadManager = /*#__PURE__*/ (function () {
+        function ThreadManager(options) {
+            var _a;
+            this.unusedWorkers = [];
+            this.runningWorkers = [];
+            this.pthreads = Object.create(null);
+            this.wasmModule = null;
+            this.wasmMemory = null;
+            this.messageEvents = new WeakMap();
+            if (!options) {
+                throw new TypeError('ThreadManager(): options is not provided');
+            }
+            if ('childThread' in options) {
+                this._childThread = Boolean(options.childThread);
+            }
+            else {
+                this._childThread = false;
+            }
+            if (this._childThread) {
+                this._onCreateWorker = undefined;
+                this._reuseWorker = false;
+                this._beforeLoad = undefined;
+            }
+            else {
+                this._onCreateWorker = options.onCreateWorker;
+                this._reuseWorker = getReuseWorker(options.reuseWorker);
+                this._beforeLoad = options.beforeLoad;
+            }
+            this.printErr = (_a = options.printErr) !== null && _a !== void 0 ? _a : console.error.bind(console);
+            this.threadSpawn = options.threadSpawn;
+        }
+        Object.defineProperty(ThreadManager.prototype, "nextWorkerID", {
+            get: function () { return nextWorkerID; },
+            enumerable: false,
+            configurable: true
+        });
+        ThreadManager.prototype.init = function () {
+            if (!this._childThread) {
+                this.initMainThread();
+            }
+        };
+        ThreadManager.prototype.initMainThread = function () {
+            this.preparePool();
+        };
+        ThreadManager.prototype.preparePool = function () {
+            if (this._reuseWorker) {
+                if (this._reuseWorker.size) {
+                    var pthreadPoolSize = this._reuseWorker.size;
+                    while (pthreadPoolSize--) {
+                        var worker = this.allocateUnusedWorker();
+                        if (ENVIRONMENT_IS_NODE) {
+                            // https://github.com/nodejs/node/issues/53036
+                            worker.once('message', function () { });
+                            worker.unref();
+                        }
+                    }
+                }
+            }
+        };
+        ThreadManager.prototype.shouldPreloadWorkers = function () {
+            return !this._childThread && this._reuseWorker && this._reuseWorker.size > 0;
+        };
+        ThreadManager.prototype.loadWasmModuleToAllWorkers = function () {
+            var _this_1 = this;
+            var promises = Array(this.unusedWorkers.length);
+            var _loop_1 = function (i) {
+                var worker = this_1.unusedWorkers[i];
+                if (ENVIRONMENT_IS_NODE)
+                    worker.ref();
+                promises[i] = this_1.loadWasmModuleToWorker(worker).then(function (w) {
+                    if (ENVIRONMENT_IS_NODE)
+                        worker.unref();
+                    return w;
+                }, function (e) {
+                    if (ENVIRONMENT_IS_NODE)
+                        worker.unref();
+                    throw e;
+                });
+            };
+            var this_1 = this;
+            for (var i = 0; i < this.unusedWorkers.length; ++i) {
+                _loop_1(i);
+            }
+            return Promise.all(promises).catch(function (err) {
+                _this_1.terminateAllThreads();
+                throw err;
+            });
+        };
+        ThreadManager.prototype.preloadWorkers = function () {
+            if (this.shouldPreloadWorkers()) {
+                return this.loadWasmModuleToAllWorkers();
+            }
+            return Promise.resolve([]);
+        };
+        ThreadManager.prototype.setup = function (wasmModule, wasmMemory) {
+            this.wasmModule = wasmModule;
+            this.wasmMemory = wasmMemory;
+        };
+        ThreadManager.prototype.markId = function (worker) {
+            if (worker.__emnapi_tid)
+                return worker.__emnapi_tid;
+            var tid = nextWorkerID + 43;
+            nextWorkerID = (nextWorkerID + 1) % (WASI_THREADS_MAX_TID - 42);
+            this.pthreads[tid] = worker;
+            worker.__emnapi_tid = tid;
+            return tid;
+        };
+        ThreadManager.prototype.returnWorkerToPool = function (worker) {
+            var tid = worker.__emnapi_tid;
+            if (tid !== undefined) {
+                delete this.pthreads[tid];
+            }
+            this.unusedWorkers.push(worker);
+            this.runningWorkers.splice(this.runningWorkers.indexOf(worker), 1);
+            delete worker.__emnapi_tid;
+            if (ENVIRONMENT_IS_NODE) {
+                worker.unref();
+            }
+        };
+        ThreadManager.prototype.loadWasmModuleToWorker = function (worker, sab) {
+            var _this_1 = this;
+            if (worker.whenLoaded)
+                return worker.whenLoaded;
+            var err = this.printErr;
+            var beforeLoad = this._beforeLoad;
+            // eslint-disable-next-line @typescript-eslint/no-this-alias
+            var _this = this;
+            worker.whenLoaded = new Promise(function (resolve, reject) {
+                var handleError = function (e) {
+                    var message = 'worker sent an error!';
+                    if (worker.__emnapi_tid !== undefined) {
+                        message = 'worker (tid = ' + worker.__emnapi_tid + ') sent an error!';
+                    }
+                    if ('message' in e) {
+                        err(message + ' ' + e.message);
+                        if (e.message.indexOf('RuntimeError') !== -1 || e.message.indexOf('unreachable') !== -1) {
+                            try {
+                                _this.terminateAllThreads();
+                            }
+                            catch (_) { }
+                        }
+                    }
+                    else {
+                        err(message);
+                    }
+                    reject(e);
+                    throw e;
+                };
+                var handleMessage = function (data) {
+                    if (data.__emnapi__) {
+                        var type = data.__emnapi__.type;
+                        var payload = data.__emnapi__.payload;
+                        if (type === 'loaded') {
+                            worker.loaded = true;
+                            if (ENVIRONMENT_IS_NODE && !worker.__emnapi_tid) {
+                                worker.unref();
+                            }
+                            resolve(worker);
+                            // if (payload.err) {
+                            //   err('failed to load in child thread: ' + (payload.err.message || payload.err))
+                            // }
+                        }
+                        else if (type === 'cleanup-thread') {
+                            if (payload.tid in _this_1.pthreads) {
+                                _this_1.cleanThread(worker, payload.tid);
+                            }
+                        }
+                        else if (type === 'spawn-thread') {
+                            _this_1.threadSpawn(payload.startArg, payload.errorOrTid);
+                        }
+                        else if (type === 'terminate-all-threads') {
+                            _this_1.terminateAllThreads();
+                        }
+                    }
+                };
+                worker.onmessage = function (e) {
+                    handleMessage(e.data);
+                    _this_1.fireMessageEvent(worker, e);
+                };
+                worker.onerror = handleError;
+                if (ENVIRONMENT_IS_NODE) {
+                    worker.on('message', function (data) {
+                        var _a, _b;
+                        (_b = (_a = worker).onmessage) === null || _b === void 0 ? void 0 : _b.call(_a, {
+                            data: data
+                        });
+                    });
+                    worker.on('error', function (e) {
+                        var _a, _b;
+                        (_b = (_a = worker).onerror) === null || _b === void 0 ? void 0 : _b.call(_a, e);
+                    });
+                    worker.on('detachedExit', function () { });
+                }
+                if (typeof beforeLoad === 'function') {
+                    beforeLoad(worker);
+                }
+                try {
+                    worker.postMessage(createMessage('load', {
+                        wasmModule: _this_1.wasmModule,
+                        wasmMemory: _this_1.wasmMemory,
+                        sab: sab
+                    }));
+                }
+                catch (err) {
+                    checkSharedWasmMemory(_this_1.wasmMemory);
+                    throw err;
+                }
+            });
+            return worker.whenLoaded;
+        };
+        ThreadManager.prototype.allocateUnusedWorker = function () {
+            var _onCreateWorker = this._onCreateWorker;
+            if (typeof _onCreateWorker !== 'function') {
+                throw new TypeError('`options.onCreateWorker` is not provided');
+            }
+            var worker = _onCreateWorker({ type: 'thread', name: 'emnapi-pthread' });
+            this.unusedWorkers.push(worker);
+            return worker;
+        };
+        ThreadManager.prototype.getNewWorker = function (sab) {
+            if (this._reuseWorker) {
+                if (this.unusedWorkers.length === 0) {
+                    if (this._reuseWorker.strict) {
+                        if (!ENVIRONMENT_IS_NODE) {
+                            var err = this.printErr;
+                            err('Tried to spawn a new thread, but the thread pool is exhausted.\n' +
+                                'This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.');
+                            return;
+                        }
+                    }
+                    var worker_1 = this.allocateUnusedWorker();
+                    // eslint-disable-next-line @typescript-eslint/no-floating-promises
+                    this.loadWasmModuleToWorker(worker_1, sab);
+                }
+                return this.unusedWorkers.pop();
+            }
+            var worker = this.allocateUnusedWorker();
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            this.loadWasmModuleToWorker(worker, sab);
+            return this.unusedWorkers.pop();
+        };
+        ThreadManager.prototype.cleanThread = function (worker, tid, force) {
+            if (!force && this._reuseWorker) {
+                this.returnWorkerToPool(worker);
+            }
+            else {
+                delete this.pthreads[tid];
+                var index = this.runningWorkers.indexOf(worker);
+                if (index !== -1) {
+                    this.runningWorkers.splice(index, 1);
+                }
+                this.terminateWorker(worker);
+                delete worker.__emnapi_tid;
+            }
+        };
+        ThreadManager.prototype.terminateWorker = function (worker) {
+            var _this_1 = this;
+            var _a;
+            var tid = worker.__emnapi_tid;
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            worker.terminate();
+            (_a = this.messageEvents.get(worker)) === null || _a === void 0 ? void 0 : _a.clear();
+            this.messageEvents.delete(worker);
+            worker.onmessage = function (e) {
+                if (e.data.__emnapi__) {
+                    var err = _this_1.printErr;
+                    err('received "' + e.data.__emnapi__.type + '" command from terminated worker: ' + tid);
+                }
+            };
+        };
+        ThreadManager.prototype.terminateAllThreads = function () {
+            for (var i = 0; i < this.runningWorkers.length; ++i) {
+                this.terminateWorker(this.runningWorkers[i]);
+            }
+            for (var i = 0; i < this.unusedWorkers.length; ++i) {
+                this.terminateWorker(this.unusedWorkers[i]);
+            }
+            this.unusedWorkers = [];
+            this.runningWorkers = [];
+            this.pthreads = Object.create(null);
+            this.preparePool();
+        };
+        ThreadManager.prototype.addMessageEventListener = function (worker, onMessage) {
+            var listeners = this.messageEvents.get(worker);
+            if (!listeners) {
+                listeners = new Set();
+                this.messageEvents.set(worker, listeners);
+            }
+            listeners.add(onMessage);
+            return function () {
+                listeners === null || listeners === void 0 ? void 0 : listeners.delete(onMessage);
+            };
+        };
+        ThreadManager.prototype.fireMessageEvent = function (worker, e) {
+            var listeners = this.messageEvents.get(worker);
+            if (!listeners)
+                return;
+            var err = this.printErr;
+            listeners.forEach(function (listener) {
+                try {
+                    listener(e);
+                }
+                catch (e) {
+                    err(e.stack);
+                }
+            });
+        };
+        return ThreadManager;
+    }());
+
+    var kIsProxy = Symbol('kIsProxy');
+    /** @public */
+    function createInstanceProxy(instance, memory) {
+        if (instance[kIsProxy])
+            return instance;
+        // https://github.com/nodejs/help/issues/4102
+        var originalExports = instance.exports;
+        var createHandler = function (target) {
+            var handlers = [
+                'apply',
+                'construct',
+                'defineProperty',
+                'deleteProperty',
+                'get',
+                'getOwnPropertyDescriptor',
+                'getPrototypeOf',
+                'has',
+                'isExtensible',
+                'ownKeys',
+                'preventExtensions',
+                'set',
+                'setPrototypeOf'
+            ];
+            var handler = {};
+            var _loop_1 = function (i) {
+                var name_1 = handlers[i];
+                handler[name_1] = function () {
+                    var args = Array.prototype.slice.call(arguments, 1);
+                    args.unshift(target);
+                    return Reflect[name_1].apply(Reflect, args);
+                };
+            };
+            for (var i = 0; i < handlers.length; i++) {
+                _loop_1(i);
+            }
+            return handler;
+        };
+        var handler = createHandler(originalExports);
+        var _initialize = function () { };
+        var _start = function () { return 0; };
+        handler.get = function (_target, p, receiver) {
+            var _a;
+            if (p === 'memory') {
+                return (_a = (typeof memory === 'function' ? memory() : memory)) !== null && _a !== void 0 ? _a : Reflect.get(originalExports, p, receiver);
+            }
+            if (p === '_initialize') {
+                return p in originalExports ? _initialize : undefined;
+            }
+            if (p === '_start') {
+                return p in originalExports ? _start : undefined;
+            }
+            return Reflect.get(originalExports, p, receiver);
+        };
+        handler.has = function (_target, p) {
+            if (p === 'memory')
+                return true;
+            return Reflect.has(originalExports, p);
+        };
+        var exportsProxy = new Proxy(Object.create(null), handler);
+        return new Proxy(instance, {
+            get: function (target, p, receiver) {
+                if (p === 'exports') {
+                    return exportsProxy;
+                }
+                if (p === kIsProxy) {
+                    return true;
+                }
+                return Reflect.get(target, p, receiver);
+            }
+        });
+    }
+
+    var patchedWasiInstances = new WeakMap();
+    /** @public */
+    var WASIThreads = /*#__PURE__*/ (function () {
+        function WASIThreads(options) {
+            var _this_1 = this;
+            if (!options) {
+                throw new TypeError('WASIThreads(): options is not provided');
+            }
+            if (!options.wasi) {
+                throw new TypeError('WASIThreads(): options.wasi is not provided');
+            }
+            patchedWasiInstances.set(this, new WeakSet());
+            var wasi = options.wasi;
+            patchWasiInstance(this, wasi);
+            this.wasi = wasi;
+            if ('childThread' in options) {
+                this.childThread = Boolean(options.childThread);
+            }
+            else {
+                this.childThread = false;
+            }
+            this.PThread = undefined;
+            if ('threadManager' in options) {
+                if (typeof options.threadManager === 'function') {
+                    this.PThread = options.threadManager();
+                }
+                else {
+                    this.PThread = options.threadManager;
+                }
+            }
+            else {
+                if (!this.childThread) {
+                    this.PThread = new ThreadManager(options);
+                    this.PThread.init();
+                }
+            }
+            var waitThreadStart = false;
+            if ('waitThreadStart' in options) {
+                waitThreadStart = typeof options.waitThreadStart === 'number' ? options.waitThreadStart : Boolean(options.waitThreadStart);
+            }
+            var postMessage = getPostMessage(options);
+            if (this.childThread && typeof postMessage !== 'function') {
+                throw new TypeError('options.postMessage is not a function');
+            }
+            this.postMessage = postMessage;
+            var wasm64 = Boolean(options.wasm64);
+            var threadSpawn = function (startArg, errorOrTid) {
+                var _a;
+                var EAGAIN = 6;
+                var isNewABI = errorOrTid !== undefined;
+                try {
+                    checkSharedWasmMemory(_this_1.wasmMemory);
+                }
+                catch (err) {
+                    (_a = _this_1.PThread) === null || _a === void 0 ? void 0 : _a.printErr(err.stack);
+                    if (isNewABI) {
+                        var struct_1 = new Int32Array(_this_1.wasmMemory.buffer, errorOrTid, 2);
+                        Atomics.store(struct_1, 0, 1);
+                        Atomics.store(struct_1, 1, EAGAIN);
+                        Atomics.notify(struct_1, 1);
+                        return 1;
+                    }
+                    else {
+                        return -EAGAIN;
+                    }
+                }
+                if (!isNewABI) {
+                    var malloc = _this_1.wasmInstance.exports.malloc;
+                    errorOrTid = wasm64 ? Number(malloc(BigInt(8))) : (malloc(8) >>> 0);
+                    if (!errorOrTid) {
+                        return -48; /* ENOMEM */
+                    }
+                }
+                var _free = _this_1.wasmInstance.exports.free;
+                var free = wasm64 ? function (ptr) { _free(BigInt(ptr)); } : _free;
+                var struct = new Int32Array(_this_1.wasmMemory.buffer, errorOrTid, 2);
+                Atomics.store(struct, 0, 0);
+                Atomics.store(struct, 1, 0);
+                if (_this_1.childThread) {
+                    postMessage(createMessage('spawn-thread', {
+                        startArg: startArg,
+                        errorOrTid: errorOrTid
+                    }));
+                    Atomics.wait(struct, 1, 0);
+                    var isError = Atomics.load(struct, 0);
+                    var result = Atomics.load(struct, 1);
+                    if (isNewABI) {
+                        return isError;
+                    }
+                    free(errorOrTid);
+                    return isError ? -result : result;
+                }
+                var shouldWait = waitThreadStart || (waitThreadStart === 0);
+                var sab;
+                if (shouldWait) {
+                    sab = new Int32Array(new SharedArrayBuffer(16 + 8192));
+                    Atomics.store(sab, 0, 0);
+                }
+                var worker;
+                var tid;
+                var PThread = _this_1.PThread;
+                try {
+                    worker = PThread.getNewWorker(sab);
+                    if (!worker) {
+                        throw new Error('failed to get new worker');
+                    }
+                    tid = PThread.markId(worker);
+                    if (ENVIRONMENT_IS_NODE) {
+                        worker.unref();
+                    }
+                    worker.postMessage(createMessage('start', {
+                        tid: tid,
+                        arg: startArg,
+                        sab: sab
+                    }));
+                    if (shouldWait) {
+                        if (typeof waitThreadStart === 'number') {
+                            var waitResult = Atomics.wait(sab, 0, 0, waitThreadStart);
+                            if (waitResult === 'timed-out') {
+                                try {
+                                    PThread.cleanThread(worker, tid, true);
+                                }
+                                catch (_) { }
+                                throw new Error('Spawning thread timed out. Please check if the worker is created successfully and if message is handled properly in the worker.');
+                            }
+                        }
+                        else {
+                            Atomics.wait(sab, 0, 0);
+                        }
+                        var r = Atomics.load(sab, 0);
+                        if (r > 1) {
+                            try {
+                                PThread.cleanThread(worker, tid, true);
+                            }
+                            catch (_) { }
+                            throw deserizeErrorFromBuffer(sab.buffer);
+                        }
+                    }
+                }
+                catch (e) {
+                    Atomics.store(struct, 0, 1);
+                    Atomics.store(struct, 1, EAGAIN);
+                    Atomics.notify(struct, 1);
+                    PThread === null || PThread === void 0 ? void 0 : PThread.printErr(e.stack);
+                    if (isNewABI) {
+                        return 1;
+                    }
+                    free(errorOrTid);
+                    return -EAGAIN;
+                }
+                Atomics.store(struct, 0, 0);
+                Atomics.store(struct, 1, tid);
+                Atomics.notify(struct, 1);
+                PThread.runningWorkers.push(worker);
+                if (!shouldWait) {
+                    worker.whenLoaded.catch(function (err) {
+                        delete worker.whenLoaded;
+                        PThread.cleanThread(worker, tid, true);
+                        throw err;
+                    });
+                }
+                if (isNewABI) {
+                    return 0;
+                }
+                free(errorOrTid);
+                return tid;
+            };
+            this.threadSpawn = threadSpawn;
+            if (this.PThread) {
+                this.PThread.threadSpawn = threadSpawn;
+            }
+        }
+        WASIThreads.prototype.getImportObject = function () {
+            return {
+                wasi: {
+                    'thread-spawn': this.threadSpawn
+                }
+            };
+        };
+        WASIThreads.prototype.setup = function (wasmInstance, wasmModule, wasmMemory) {
+            wasmMemory !== null && wasmMemory !== void 0 ? wasmMemory : (wasmMemory = wasmInstance.exports.memory);
+            this.wasmInstance = wasmInstance;
+            this.wasmMemory = wasmMemory;
+            if (this.PThread) {
+                this.PThread.setup(wasmModule, wasmMemory);
+            }
+        };
+        WASIThreads.prototype.preloadWorkers = function () {
+            if (this.PThread) {
+                return this.PThread.preloadWorkers();
+            }
+            return Promise.resolve([]);
+        };
+        /**
+         * It's ok to call this method to a WASI command module.
+         *
+         * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+         *
+         * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+         */
+        WASIThreads.prototype.initialize = function (instance, module, memory) {
+            var exports$1 = instance.exports;
+            memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+            if (this.childThread) {
+                instance = createInstanceProxy(instance, memory);
+            }
+            this.setup(instance, module, memory);
+            var wasi = this.wasi;
+            if (('_start' in exports$1) && (typeof exports$1._start === 'function')) {
+                if (this.childThread) {
+                    wasi.start(instance);
+                    try {
+                        var kStarted = getWasiSymbol(wasi, 'kStarted');
+                        wasi[kStarted] = false;
+                    }
+                    catch (_) { }
+                }
+                else {
+                    setupInstance(wasi, instance);
+                }
+            }
+            else {
+                wasi.initialize(instance);
+            }
+            return instance;
+        };
+        /**
+         * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+         * ```js
+         * this.initialize(instance, module, memory)
+         * this.wasi.start(instance)
+         * ```
+         */
+        WASIThreads.prototype.start = function (instance, module, memory) {
+            var exports$1 = instance.exports;
+            memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+            if (this.childThread) {
+                instance = createInstanceProxy(instance, memory);
+            }
+            this.setup(instance, module, memory);
+            var exitCode = this.wasi.start(instance);
+            return { exitCode: exitCode, instance: instance };
+        };
+        WASIThreads.prototype.terminateAllThreads = function () {
+            var _a;
+            if (!this.childThread) {
+                (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.terminateAllThreads();
+            }
+            else {
+                this.postMessage(createMessage('terminate-all-threads', {}));
+            }
+        };
+        return WASIThreads;
+    }());
+    function patchWasiInstance(wasiThreads, wasi) {
+        var patched = patchedWasiInstances.get(wasiThreads);
+        if (patched.has(wasi)) {
+            return;
+        }
+        var _this = wasiThreads;
+        var wasiImport = wasi.wasiImport;
+        if (wasiImport) {
+            var proc_exit_1 = wasiImport.proc_exit;
+            wasiImport.proc_exit = function (code) {
+                _this.terminateAllThreads();
+                return proc_exit_1.call(this, code);
+            };
+        }
+        if (!_this.childThread) {
+            var start_1 = wasi.start;
+            if (typeof start_1 === 'function') {
+                wasi.start = function (instance) {
+                    try {
+                        return start_1.call(this, instance);
+                    }
+                    catch (err) {
+                        if (isTrapError(err)) {
+                            _this.terminateAllThreads();
+                        }
+                        throw err;
+                    }
+                };
+            }
+        }
+        patched.add(wasi);
+    }
+    function getWasiSymbol(wasi, description) {
+        var symbols = Object.getOwnPropertySymbols(wasi);
+        var selectDescription = function (description) { return function (s) {
+            if (s.description) {
+                return s.description === description;
+            }
+            return s.toString() === "Symbol(".concat(description, ")");
+        }; };
+        if (Array.isArray(description)) {
+            return description.map(function (d) { return symbols.filter(selectDescription(d))[0]; });
+        }
+        return symbols.filter(selectDescription(description))[0];
+    }
+    function setupInstance(wasi, instance) {
+        var _a = getWasiSymbol(wasi, ['kInstance', 'kSetMemory']), kInstance = _a[0], kSetMemory = _a[1];
+        wasi[kInstance] = instance;
+        wasi[kSetMemory](instance.exports.memory);
+    }
+
+    /** @public */
+    var ThreadMessageHandler = /*#__PURE__*/ (function () {
+        function ThreadMessageHandler(options) {
+            var postMsg = getPostMessage(options);
+            if (typeof postMsg !== 'function') {
+                throw new TypeError('options.postMessage is not a function');
+            }
+            this.postMessage = postMsg;
+            this.onLoad = options === null || options === void 0 ? void 0 : options.onLoad;
+            this.onError = typeof (options === null || options === void 0 ? void 0 : options.onError) === 'function' ? options.onError : function (_type, err) { throw err; };
+            this.instance = undefined;
+            // this.module = undefined
+            this.messagesBeforeLoad = [];
+        }
+        /** @virtual */
+        ThreadMessageHandler.prototype.instantiate = function (data) {
+            if (typeof this.onLoad === 'function') {
+                return this.onLoad(data);
+            }
+            throw new Error('ThreadMessageHandler.prototype.instantiate is not implemented');
+        };
+        /** @virtual */
+        ThreadMessageHandler.prototype.handle = function (e) {
+            var _this = this;
+            var _a;
+            if ((_a = e === null || e === void 0 ? void 0 : e.data) === null || _a === void 0 ? void 0 : _a.__emnapi__) {
+                var type = e.data.__emnapi__.type;
+                var payload_1 = e.data.__emnapi__.payload;
+                try {
+                    if (type === 'load') {
+                        this._load(payload_1);
+                    }
+                    else if (type === 'start') {
+                        this.handleAfterLoad(e, function () {
+                            _this._start(payload_1);
+                        });
+                    }
+                }
+                catch (err) {
+                    this.onError(err, type);
+                }
+            }
+        };
+        ThreadMessageHandler.prototype._load = function (payload) {
+            var _this = this;
+            if (this.instance !== undefined)
+                return;
+            var source;
+            try {
+                source = this.instantiate(payload);
+            }
+            catch (err) {
+                this._loaded(err, null, payload);
+                return;
+            }
+            var then = source && 'then' in source ? source.then : undefined;
+            if (typeof then === 'function') {
+                // eslint-disable-next-line @typescript-eslint/no-floating-promises
+                then.call(source, function (source) { _this._loaded(null, source, payload); }, function (err) { _this._loaded(err, null, payload); });
+            }
+            else {
+                this._loaded(null, source, payload);
+            }
+        };
+        ThreadMessageHandler.prototype._start = function (payload) {
+            var wasi_thread_start = this.instance.exports.wasi_thread_start;
+            if (typeof wasi_thread_start !== 'function') {
+                var err = new TypeError('wasi_thread_start is not exported');
+                notifyPthreadCreateResult(payload.sab, 2, err);
+                throw err;
+            }
+            var postMessage = this.postMessage;
+            var tid = payload.tid;
+            var startArg = payload.arg;
+            notifyPthreadCreateResult(payload.sab, 1);
+            try {
+                wasi_thread_start(tid, startArg);
+            }
+            catch (err) {
+                if (err !== 'unwind') {
+                    throw err;
+                }
+                else {
+                    return;
+                }
+            }
+            postMessage(createMessage('cleanup-thread', { tid: tid }));
+        };
+        ThreadMessageHandler.prototype._loaded = function (err, source, payload) {
+            if (err) {
+                notifyPthreadCreateResult(payload.sab, 2, err);
+                throw err;
+            }
+            if (source == null) {
+                var err_1 = new TypeError('onLoad should return an object');
+                notifyPthreadCreateResult(payload.sab, 2, err_1);
+                throw err_1;
+            }
+            var instance = source.instance;
+            if (!instance) {
+                var err_2 = new TypeError('onLoad should return an object which includes "instance"');
+                notifyPthreadCreateResult(payload.sab, 2, err_2);
+                throw err_2;
+            }
+            this.instance = instance;
+            var postMessage = this.postMessage;
+            postMessage(createMessage('loaded', {}));
+            var messages = this.messagesBeforeLoad;
+            this.messagesBeforeLoad = [];
+            for (var i = 0; i < messages.length; i++) {
+                var data = messages[i];
+                this.handle({ data: data });
+            }
+        };
+        ThreadMessageHandler.prototype.handleAfterLoad = function (e, f) {
+            if (this.instance !== undefined) {
+                f.call(this, e);
+            }
+            else {
+                this.messagesBeforeLoad.push(e.data);
+            }
+        };
+        return ThreadMessageHandler;
+    }());
+    function notifyPthreadCreateResult(sab, result, error) {
+        if (sab) {
+            serizeErrorToBuffer(sab.buffer, result, error);
+            Atomics.notify(sab, 0);
+        }
+    }
+
+    exports.ThreadManager = ThreadManager;
+    exports.ThreadMessageHandler = ThreadMessageHandler;
+    exports.WASIThreads = WASIThreads;
+    exports.createInstanceProxy = createInstanceProxy;
+    exports.isSharedArrayBuffer = isSharedArrayBuffer;
+    exports.isTrapError = isTrapError;
+
+}));
@@ -0,0 +1,272 @@
+/// <reference types="node" />
+
+import type { Worker as Worker_2 } from 'worker_threads';
+
+/** @public */
+export declare interface BaseOptions {
+    wasi: WASIInstance;
+    version?: 'preview1';
+    wasm64?: boolean;
+}
+
+/** @public */
+export declare interface ChildThreadOptions extends BaseOptions {
+    childThread: true;
+    postMessage?: (data: any) => void;
+}
+
+/** @public */
+export declare interface CleanupThreadPayload {
+    tid: number;
+}
+
+/** @public */
+export declare interface CommandInfo<T extends CommandType> {
+    type: T;
+    payload: CommandPayloadMap[T];
+}
+
+/** @public */
+export declare interface CommandPayloadMap {
+    load: LoadPayload;
+    loaded: LoadedPayload;
+    start: StartPayload;
+    'cleanup-thread': CleanupThreadPayload;
+    'terminate-all-threads': TerminateAllThreadsPayload;
+    'spawn-thread': SpawnThreadPayload;
+}
+
+/** @public */
+export declare type CommandType = keyof CommandPayloadMap;
+
+/** @public */
+export declare function createInstanceProxy(instance: WebAssembly.Instance, memory?: WebAssembly.Memory | (() => WebAssembly.Memory)): WebAssembly.Instance;
+
+/** @public */
+export declare function isSharedArrayBuffer(value: any): value is SharedArrayBuffer;
+
+/** @public */
+export declare function isTrapError(e: Error): e is WebAssembly.RuntimeError;
+
+/** @public */
+export declare interface LoadedPayload {
+}
+
+/** @public */
+export declare interface LoadPayload {
+    wasmModule: WebAssembly.Module;
+    wasmMemory: WebAssembly.Memory;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface MainThreadBaseOptions extends BaseOptions {
+    waitThreadStart?: boolean | number;
+}
+
+/** @public */
+export declare type MainThreadOptions = MainThreadOptionsWithThreadManager | MainThreadOptionsCreateThreadManager;
+
+/** @public */
+export declare interface MainThreadOptionsCreateThreadManager extends MainThreadBaseOptions, ThreadManagerOptionsMain {
+}
+
+/** @public */
+export declare interface MainThreadOptionsWithThreadManager extends MainThreadBaseOptions {
+    threadManager?: ThreadManager | (() => ThreadManager);
+}
+
+/** @public */
+export declare interface MessageEventData<T extends CommandType> {
+    __emnapi__: CommandInfo<T>;
+}
+
+/** @public */
+export declare interface ReuseWorkerOptions {
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size | PTHREAD_POOL_SIZE}
+     */
+    size: number;
+    /**
+     * @see {@link https://emscripten.org/docs/tools_reference/settings_reference.html#pthread-pool-size-strict | PTHREAD_POOL_SIZE_STRICT}
+     */
+    strict?: boolean;
+}
+
+/** @public */
+export declare interface SpawnThreadPayload {
+    startArg: number;
+    errorOrTid: number;
+}
+
+/** @public */
+export declare interface StartPayload {
+    tid: number;
+    arg: number;
+    sab?: Int32Array;
+}
+
+/** @public */
+export declare interface StartResult {
+    exitCode: number;
+    instance: WebAssembly.Instance;
+}
+
+/** @public */
+export declare interface TerminateAllThreadsPayload {
+}
+
+/** @public */
+export declare class ThreadManager {
+    unusedWorkers: WorkerLike[];
+    runningWorkers: WorkerLike[];
+    pthreads: Record<number, WorkerLike>;
+    get nextWorkerID(): number;
+    wasmModule: WebAssembly.Module | null;
+    wasmMemory: WebAssembly.Memory | null;
+    private readonly messageEvents;
+    private readonly _childThread;
+    private readonly _onCreateWorker;
+    private readonly _reuseWorker;
+    private readonly _beforeLoad?;
+    /* Excluded from this release type: printErr */
+    threadSpawn?: ((startArg: number, errorOrTid?: number) => number);
+    constructor(options: ThreadManagerOptions);
+    init(): void;
+    initMainThread(): void;
+    private preparePool;
+    shouldPreloadWorkers(): boolean;
+    loadWasmModuleToAllWorkers(): Promise<WorkerLike[]>;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    setup(wasmModule: WebAssembly.Module, wasmMemory: WebAssembly.Memory): void;
+    markId(worker: WorkerLike): number;
+    returnWorkerToPool(worker: WorkerLike): void;
+    loadWasmModuleToWorker(worker: WorkerLike, sab?: Int32Array): Promise<WorkerLike>;
+    allocateUnusedWorker(): WorkerLike;
+    getNewWorker(sab?: Int32Array): WorkerLike | undefined;
+    cleanThread(worker: WorkerLike, tid: number, force?: boolean): void;
+    terminateWorker(worker: WorkerLike): void;
+    terminateAllThreads(): void;
+    addMessageEventListener(worker: WorkerLike, onMessage: (e: WorkerMessageEvent) => void): () => void;
+    fireMessageEvent(worker: WorkerLike, e: WorkerMessageEvent): void;
+}
+
+/** @public */
+export declare type ThreadManagerOptions = ThreadManagerOptionsMain | ThreadManagerOptionsChild;
+
+/** @public */
+export declare interface ThreadManagerOptionsBase {
+    printErr?: (message: string) => void;
+    threadSpawn?: (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsChild extends ThreadManagerOptionsBase {
+    childThread: true;
+}
+
+/** @public */
+export declare interface ThreadManagerOptionsMain extends ThreadManagerOptionsBase {
+    beforeLoad?: (worker: WorkerLike) => any;
+    reuseWorker?: boolean | number | ReuseWorkerOptions;
+    onCreateWorker: WorkerFactory;
+    childThread?: false;
+}
+
+/** @public */
+export declare class ThreadMessageHandler {
+    protected instance: WebAssembly.Instance | undefined;
+    private messagesBeforeLoad;
+    protected postMessage: (message: any) => void;
+    protected onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    protected onError: (error: Error, type: WorkerMessageType) => void;
+    constructor(options?: ThreadMessageHandlerOptions);
+    /** @virtual */
+    instantiate(data: LoadPayload): WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    /** @virtual */
+    handle(e: WorkerMessageEvent<MessageEventData<WorkerMessageType>>): void;
+    private _load;
+    private _start;
+    protected _loaded(err: Error | null, source: WebAssembly.WebAssemblyInstantiatedSource | null, payload: LoadPayload): void;
+    protected handleAfterLoad<E extends WorkerMessageEvent>(e: E, f: (e: E) => void): void;
+}
+
+/** @public */
+export declare interface ThreadMessageHandlerOptions {
+    onLoad?: (data: LoadPayload) => WebAssembly.WebAssemblyInstantiatedSource | PromiseLike<WebAssembly.WebAssemblyInstantiatedSource>;
+    onError?: (error: Error, type: WorkerMessageType) => void;
+    postMessage?: (message: any) => void;
+}
+
+/** @public */
+export declare interface WASIInstance {
+    readonly wasiImport?: Record<string, any>;
+    initialize(instance: object): void;
+    start(instance: object): number;
+    getImportObject?(): any;
+}
+
+/** @public */
+export declare class WASIThreads {
+    PThread: ThreadManager | undefined;
+    private wasmMemory;
+    private wasmInstance;
+    private readonly threadSpawn;
+    readonly childThread: boolean;
+    private readonly postMessage;
+    readonly wasi: WASIInstance;
+    constructor(options: WASIThreadsOptions);
+    getImportObject(): {
+        wasi: WASIThreadsImports;
+    };
+    setup(wasmInstance: WebAssembly.Instance, wasmModule: WebAssembly.Module, wasmMemory?: WebAssembly.Memory): void;
+    preloadWorkers(): Promise<WorkerLike[]>;
+    /**
+     * It's ok to call this method to a WASI command module.
+     *
+     * in child thread, must call this method instead of {@link WASIThreads.start} even if it's a WASI command module
+     *
+     * @returns A proxied WebAssembly instance if in child thread, other wise the original instance
+     */
+    initialize(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): WebAssembly.Instance;
+    /**
+     * Equivalent to calling {@link WASIThreads.initialize} and then calling {@link WASIInstance.start}
+     * ```js
+     * this.initialize(instance, module, memory)
+     * this.wasi.start(instance)
+     * ```
+     */
+    start(instance: WebAssembly.Instance, module: WebAssembly.Module, memory?: WebAssembly.Memory): StartResult;
+    terminateAllThreads(): void;
+}
+
+/** @public */
+export declare interface WASIThreadsImports {
+    'thread-spawn': (startArg: number, errorOrTid?: number) => number;
+}
+
+/** @public */
+export declare type WASIThreadsOptions = MainThreadOptions | ChildThreadOptions;
+
+/** @public */
+export declare type WorkerFactory = (ctx: {
+    type: string;
+    name: string;
+}) => WorkerLike;
+
+/** @public */
+export declare type WorkerLike = (Worker | Worker_2) & {
+    whenLoaded?: Promise<WorkerLike>;
+    loaded?: boolean;
+    __emnapi_tid?: number;
+};
+
+/** @public */
+export declare interface WorkerMessageEvent<T = any> {
+    data: T;
+}
+
+/** @public */
+export declare type WorkerMessageType = 'load' | 'start';
+
+export { }
@@ -0,0 +1,889 @@
+const _WebAssembly = typeof WebAssembly !== 'undefined'
+    ? WebAssembly
+    : typeof WXWebAssembly !== 'undefined'
+        ? WXWebAssembly
+        : undefined;
+const ENVIRONMENT_IS_NODE = typeof process === 'object' && process !== null &&
+    typeof process.versions === 'object' && process.versions !== null &&
+    typeof process.versions.node === 'string';
+function getPostMessage(options) {
+    return typeof (options === null || options === void 0 ? void 0 : options.postMessage) === 'function'
+        ? options.postMessage
+        : typeof postMessage === 'function'
+            ? postMessage
+            : undefined;
+}
+function serizeErrorToBuffer(sab, code, error) {
+    const i32array = new Int32Array(sab);
+    Atomics.store(i32array, 0, code);
+    if (code > 1 && error) {
+        const name = error.name;
+        const message = error.message;
+        const stack = error.stack;
+        const nameBuffer = new TextEncoder().encode(name);
+        const messageBuffer = new TextEncoder().encode(message);
+        const stackBuffer = new TextEncoder().encode(stack);
+        Atomics.store(i32array, 1, nameBuffer.length);
+        Atomics.store(i32array, 2, messageBuffer.length);
+        Atomics.store(i32array, 3, stackBuffer.length);
+        const buffer = new Uint8Array(sab);
+        buffer.set(nameBuffer, 16);
+        buffer.set(messageBuffer, 16 + nameBuffer.length);
+        buffer.set(stackBuffer, 16 + nameBuffer.length + messageBuffer.length);
+    }
+}
+function deserizeErrorFromBuffer(sab) {
+    var _a, _b;
+    const i32array = new Int32Array(sab);
+    const status = Atomics.load(i32array, 0);
+    if (status <= 1) {
+        return null;
+    }
+    const nameLength = Atomics.load(i32array, 1);
+    const messageLength = Atomics.load(i32array, 2);
+    const stackLength = Atomics.load(i32array, 3);
+    const buffer = new Uint8Array(sab);
+    const nameBuffer = buffer.slice(16, 16 + nameLength);
+    const messageBuffer = buffer.slice(16 + nameLength, 16 + nameLength + messageLength);
+    const stackBuffer = buffer.slice(16 + nameLength + messageLength, 16 + nameLength + messageLength + stackLength);
+    const name = new TextDecoder().decode(nameBuffer);
+    const message = new TextDecoder().decode(messageBuffer);
+    const stack = new TextDecoder().decode(stackBuffer);
+    const ErrorConstructor = (_a = globalThis[name]) !== null && _a !== void 0 ? _a : (name === 'RuntimeError' ? ((_b = _WebAssembly.RuntimeError) !== null && _b !== void 0 ? _b : Error) : Error);
+    const error = new ErrorConstructor(message);
+    Object.defineProperty(error, 'stack', {
+        value: stack,
+        writable: true,
+        enumerable: false,
+        configurable: true
+    });
+    return error;
+}
+function isSharedArrayBuffer(value) {
+    return ((typeof SharedArrayBuffer === 'function' && value instanceof SharedArrayBuffer) ||
+        (Object.prototype.toString.call(value) === '[object SharedArrayBuffer]'));
+}
+function isTrapError(e) {
+    try {
+        return e instanceof _WebAssembly.RuntimeError;
+    }
+    catch (_) {
+        return false;
+    }
+}
+
+function createMessage(type, payload) {
+    return {
+        __emnapi__: {
+            type,
+            payload
+        }
+    };
+}
+
+const WASI_THREADS_MAX_TID = 0x1FFFFFFF;
+function checkSharedWasmMemory(wasmMemory) {
+    if (wasmMemory) {
+        if (!isSharedArrayBuffer(wasmMemory.buffer)) {
+            throw new Error('Multithread features require shared wasm memory. ' +
+                'Try to compile with `-matomics -mbulk-memory` and use `--import-memory --shared-memory` during linking, ' +
+                'then create WebAssembly.Memory with `shared: true` option');
+        }
+    }
+    else {
+        if (typeof SharedArrayBuffer === 'undefined') {
+            throw new Error('Current environment does not support SharedArrayBuffer, threads are not available!');
+        }
+    }
+}
+function getReuseWorker(value) {
+    var _a;
+    if (typeof value === 'boolean') {
+        return value ? { size: 0, strict: false } : false;
+    }
+    if (typeof value === 'number') {
+        if (!(value >= 0)) {
+            throw new RangeError('reuseWorker: size must be a non-negative integer');
+        }
+        return { size: value, strict: false };
+    }
+    if (!value) {
+        return false;
+    }
+    const size = (_a = Number(value.size)) !== null && _a !== void 0 ? _a : 0;
+    const strict = Boolean(value.strict);
+    if (!(size > 0) && strict) {
+        throw new RangeError('reuseWorker: size must be set to positive integer if strict is set to true');
+    }
+    return { size, strict };
+}
+let nextWorkerID = 0;
+class ThreadManager {
+    get nextWorkerID() { return nextWorkerID; }
+    constructor(options) {
+        var _a;
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.wasmModule = null;
+        this.wasmMemory = null;
+        this.messageEvents = new WeakMap();
+        if (!options) {
+            throw new TypeError('ThreadManager(): options is not provided');
+        }
+        if ('childThread' in options) {
+            this._childThread = Boolean(options.childThread);
+        }
+        else {
+            this._childThread = false;
+        }
+        if (this._childThread) {
+            this._onCreateWorker = undefined;
+            this._reuseWorker = false;
+            this._beforeLoad = undefined;
+        }
+        else {
+            this._onCreateWorker = options.onCreateWorker;
+            this._reuseWorker = getReuseWorker(options.reuseWorker);
+            this._beforeLoad = options.beforeLoad;
+        }
+        this.printErr = (_a = options.printErr) !== null && _a !== void 0 ? _a : console.error.bind(console);
+        this.threadSpawn = options.threadSpawn;
+    }
+    init() {
+        if (!this._childThread) {
+            this.initMainThread();
+        }
+    }
+    initMainThread() {
+        this.preparePool();
+    }
+    preparePool() {
+        if (this._reuseWorker) {
+            if (this._reuseWorker.size) {
+                let pthreadPoolSize = this._reuseWorker.size;
+                while (pthreadPoolSize--) {
+                    const worker = this.allocateUnusedWorker();
+                    if (ENVIRONMENT_IS_NODE) {
+                        worker.once('message', () => { });
+                        worker.unref();
+                    }
+                }
+            }
+        }
+    }
+    shouldPreloadWorkers() {
+        return !this._childThread && this._reuseWorker && this._reuseWorker.size > 0;
+    }
+    loadWasmModuleToAllWorkers() {
+        const promises = Array(this.unusedWorkers.length);
+        for (let i = 0; i < this.unusedWorkers.length; ++i) {
+            const worker = this.unusedWorkers[i];
+            if (ENVIRONMENT_IS_NODE)
+                worker.ref();
+            promises[i] = this.loadWasmModuleToWorker(worker).then((w) => {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                return w;
+            }, (e) => {
+                if (ENVIRONMENT_IS_NODE)
+                    worker.unref();
+                throw e;
+            });
+        }
+        return Promise.all(promises).catch((err) => {
+            this.terminateAllThreads();
+            throw err;
+        });
+    }
+    preloadWorkers() {
+        if (this.shouldPreloadWorkers()) {
+            return this.loadWasmModuleToAllWorkers();
+        }
+        return Promise.resolve([]);
+    }
+    setup(wasmModule, wasmMemory) {
+        this.wasmModule = wasmModule;
+        this.wasmMemory = wasmMemory;
+    }
+    markId(worker) {
+        if (worker.__emnapi_tid)
+            return worker.__emnapi_tid;
+        const tid = nextWorkerID + 43;
+        nextWorkerID = (nextWorkerID + 1) % (WASI_THREADS_MAX_TID - 42);
+        this.pthreads[tid] = worker;
+        worker.__emnapi_tid = tid;
+        return tid;
+    }
+    returnWorkerToPool(worker) {
+        var tid = worker.__emnapi_tid;
+        if (tid !== undefined) {
+            delete this.pthreads[tid];
+        }
+        this.unusedWorkers.push(worker);
+        this.runningWorkers.splice(this.runningWorkers.indexOf(worker), 1);
+        delete worker.__emnapi_tid;
+        if (ENVIRONMENT_IS_NODE) {
+            worker.unref();
+        }
+    }
+    loadWasmModuleToWorker(worker, sab) {
+        if (worker.whenLoaded)
+            return worker.whenLoaded;
+        const err = this.printErr;
+        const beforeLoad = this._beforeLoad;
+        const _this = this;
+        worker.whenLoaded = new Promise((resolve, reject) => {
+            const handleError = function (e) {
+                let message = 'worker sent an error!';
+                if (worker.__emnapi_tid !== undefined) {
+                    message = 'worker (tid = ' + worker.__emnapi_tid + ') sent an error!';
+                }
+                if ('message' in e) {
+                    err(message + ' ' + e.message);
+                    if (e.message.indexOf('RuntimeError') !== -1 || e.message.indexOf('unreachable') !== -1) {
+                        try {
+                            _this.terminateAllThreads();
+                        }
+                        catch (_) { }
+                    }
+                }
+                else {
+                    err(message);
+                }
+                reject(e);
+                throw e;
+            };
+            const handleMessage = (data) => {
+                if (data.__emnapi__) {
+                    const type = data.__emnapi__.type;
+                    const payload = data.__emnapi__.payload;
+                    if (type === 'loaded') {
+                        worker.loaded = true;
+                        if (ENVIRONMENT_IS_NODE && !worker.__emnapi_tid) {
+                            worker.unref();
+                        }
+                        resolve(worker);
+                    }
+                    else if (type === 'cleanup-thread') {
+                        if (payload.tid in this.pthreads) {
+                            this.cleanThread(worker, payload.tid);
+                        }
+                    }
+                    else if (type === 'spawn-thread') {
+                        this.threadSpawn(payload.startArg, payload.errorOrTid);
+                    }
+                    else if (type === 'terminate-all-threads') {
+                        this.terminateAllThreads();
+                    }
+                }
+            };
+            worker.onmessage = (e) => {
+                handleMessage(e.data);
+                this.fireMessageEvent(worker, e);
+            };
+            worker.onerror = handleError;
+            if (ENVIRONMENT_IS_NODE) {
+                worker.on('message', function (data) {
+                    var _a, _b;
+                    (_b = (_a = worker).onmessage) === null || _b === void 0 ? void 0 : _b.call(_a, {
+                        data
+                    });
+                });
+                worker.on('error', function (e) {
+                    var _a, _b;
+                    (_b = (_a = worker).onerror) === null || _b === void 0 ? void 0 : _b.call(_a, e);
+                });
+                worker.on('detachedExit', function () { });
+            }
+            if (typeof beforeLoad === 'function') {
+                beforeLoad(worker);
+            }
+            try {
+                worker.postMessage(createMessage('load', {
+                    wasmModule: this.wasmModule,
+                    wasmMemory: this.wasmMemory,
+                    sab
+                }));
+            }
+            catch (err) {
+                checkSharedWasmMemory(this.wasmMemory);
+                throw err;
+            }
+        });
+        return worker.whenLoaded;
+    }
+    allocateUnusedWorker() {
+        const _onCreateWorker = this._onCreateWorker;
+        if (typeof _onCreateWorker !== 'function') {
+            throw new TypeError('`options.onCreateWorker` is not provided');
+        }
+        const worker = _onCreateWorker({ type: 'thread', name: 'emnapi-pthread' });
+        this.unusedWorkers.push(worker);
+        return worker;
+    }
+    getNewWorker(sab) {
+        if (this._reuseWorker) {
+            if (this.unusedWorkers.length === 0) {
+                if (this._reuseWorker.strict) {
+                    if (!ENVIRONMENT_IS_NODE) {
+                        const err = this.printErr;
+                        err('Tried to spawn a new thread, but the thread pool is exhausted.\n' +
+                            'This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.');
+                        return;
+                    }
+                }
+                const worker = this.allocateUnusedWorker();
+                this.loadWasmModuleToWorker(worker, sab);
+            }
+            return this.unusedWorkers.pop();
+        }
+        const worker = this.allocateUnusedWorker();
+        this.loadWasmModuleToWorker(worker, sab);
+        return this.unusedWorkers.pop();
+    }
+    cleanThread(worker, tid, force) {
+        if (!force && this._reuseWorker) {
+            this.returnWorkerToPool(worker);
+        }
+        else {
+            delete this.pthreads[tid];
+            const index = this.runningWorkers.indexOf(worker);
+            if (index !== -1) {
+                this.runningWorkers.splice(index, 1);
+            }
+            this.terminateWorker(worker);
+            delete worker.__emnapi_tid;
+        }
+    }
+    terminateWorker(worker) {
+        var _a;
+        const tid = worker.__emnapi_tid;
+        worker.terminate();
+        (_a = this.messageEvents.get(worker)) === null || _a === void 0 ? void 0 : _a.clear();
+        this.messageEvents.delete(worker);
+        worker.onmessage = (e) => {
+            if (e.data.__emnapi__) {
+                const err = this.printErr;
+                err('received "' + e.data.__emnapi__.type + '" command from terminated worker: ' + tid);
+            }
+        };
+    }
+    terminateAllThreads() {
+        for (let i = 0; i < this.runningWorkers.length; ++i) {
+            this.terminateWorker(this.runningWorkers[i]);
+        }
+        for (let i = 0; i < this.unusedWorkers.length; ++i) {
+            this.terminateWorker(this.unusedWorkers[i]);
+        }
+        this.unusedWorkers = [];
+        this.runningWorkers = [];
+        this.pthreads = Object.create(null);
+        this.preparePool();
+    }
+    addMessageEventListener(worker, onMessage) {
+        let listeners = this.messageEvents.get(worker);
+        if (!listeners) {
+            listeners = new Set();
+            this.messageEvents.set(worker, listeners);
+        }
+        listeners.add(onMessage);
+        return () => {
+            listeners === null || listeners === void 0 ? void 0 : listeners.delete(onMessage);
+        };
+    }
+    fireMessageEvent(worker, e) {
+        const listeners = this.messageEvents.get(worker);
+        if (!listeners)
+            return;
+        const err = this.printErr;
+        listeners.forEach((listener) => {
+            try {
+                listener(e);
+            }
+            catch (e) {
+                err(e.stack);
+            }
+        });
+    }
+}
+
+const kIsProxy = Symbol('kIsProxy');
+function createInstanceProxy(instance, memory) {
+    if (instance[kIsProxy])
+        return instance;
+    const originalExports = instance.exports;
+    const createHandler = function (target) {
+        const handlers = [
+            'apply',
+            'construct',
+            'defineProperty',
+            'deleteProperty',
+            'get',
+            'getOwnPropertyDescriptor',
+            'getPrototypeOf',
+            'has',
+            'isExtensible',
+            'ownKeys',
+            'preventExtensions',
+            'set',
+            'setPrototypeOf'
+        ];
+        const handler = {};
+        for (let i = 0; i < handlers.length; i++) {
+            const name = handlers[i];
+            handler[name] = function () {
+                const args = Array.prototype.slice.call(arguments, 1);
+                args.unshift(target);
+                return Reflect[name].apply(Reflect, args);
+            };
+        }
+        return handler;
+    };
+    const handler = createHandler(originalExports);
+    const _initialize = () => { };
+    const _start = () => 0;
+    handler.get = function (_target, p, receiver) {
+        var _a;
+        if (p === 'memory') {
+            return (_a = (typeof memory === 'function' ? memory() : memory)) !== null && _a !== void 0 ? _a : Reflect.get(originalExports, p, receiver);
+        }
+        if (p === '_initialize') {
+            return p in originalExports ? _initialize : undefined;
+        }
+        if (p === '_start') {
+            return p in originalExports ? _start : undefined;
+        }
+        return Reflect.get(originalExports, p, receiver);
+    };
+    handler.has = function (_target, p) {
+        if (p === 'memory')
+            return true;
+        return Reflect.has(originalExports, p);
+    };
+    const exportsProxy = new Proxy(Object.create(null), handler);
+    return new Proxy(instance, {
+        get(target, p, receiver) {
+            if (p === 'exports') {
+                return exportsProxy;
+            }
+            if (p === kIsProxy) {
+                return true;
+            }
+            return Reflect.get(target, p, receiver);
+        }
+    });
+}
+
+const patchedWasiInstances = new WeakMap();
+class WASIThreads {
+    constructor(options) {
+        if (!options) {
+            throw new TypeError('WASIThreads(): options is not provided');
+        }
+        if (!options.wasi) {
+            throw new TypeError('WASIThreads(): options.wasi is not provided');
+        }
+        patchedWasiInstances.set(this, new WeakSet());
+        const wasi = options.wasi;
+        patchWasiInstance(this, wasi);
+        this.wasi = wasi;
+        if ('childThread' in options) {
+            this.childThread = Boolean(options.childThread);
+        }
+        else {
+            this.childThread = false;
+        }
+        this.PThread = undefined;
+        if ('threadManager' in options) {
+            if (typeof options.threadManager === 'function') {
+                this.PThread = options.threadManager();
+            }
+            else {
+                this.PThread = options.threadManager;
+            }
+        }
+        else {
+            if (!this.childThread) {
+                this.PThread = new ThreadManager(options);
+                this.PThread.init();
+            }
+        }
+        let waitThreadStart = false;
+        if ('waitThreadStart' in options) {
+            waitThreadStart = typeof options.waitThreadStart === 'number' ? options.waitThreadStart : Boolean(options.waitThreadStart);
+        }
+        const postMessage = getPostMessage(options);
+        if (this.childThread && typeof postMessage !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMessage;
+        const wasm64 = Boolean(options.wasm64);
+        const threadSpawn = (startArg, errorOrTid) => {
+            var _a;
+            const EAGAIN = 6;
+            const isNewABI = errorOrTid !== undefined;
+            try {
+                checkSharedWasmMemory(this.wasmMemory);
+            }
+            catch (err) {
+                (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.printErr(err.stack);
+                if (isNewABI) {
+                    const struct = new Int32Array(this.wasmMemory.buffer, errorOrTid, 2);
+                    Atomics.store(struct, 0, 1);
+                    Atomics.store(struct, 1, EAGAIN);
+                    Atomics.notify(struct, 1);
+                    return 1;
+                }
+                else {
+                    return -EAGAIN;
+                }
+            }
+            if (!isNewABI) {
+                const malloc = this.wasmInstance.exports.malloc;
+                errorOrTid = wasm64 ? Number(malloc(BigInt(8))) : (malloc(8) >>> 0);
+                if (!errorOrTid) {
+                    return -48;
+                }
+            }
+            const _free = this.wasmInstance.exports.free;
+            const free = wasm64 ? (ptr) => { _free(BigInt(ptr)); } : _free;
+            const struct = new Int32Array(this.wasmMemory.buffer, errorOrTid, 2);
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, 0);
+            if (this.childThread) {
+                postMessage(createMessage('spawn-thread', {
+                    startArg,
+                    errorOrTid: errorOrTid
+                }));
+                Atomics.wait(struct, 1, 0);
+                const isError = Atomics.load(struct, 0);
+                const result = Atomics.load(struct, 1);
+                if (isNewABI) {
+                    return isError;
+                }
+                free(errorOrTid);
+                return isError ? -result : result;
+            }
+            const shouldWait = waitThreadStart || (waitThreadStart === 0);
+            let sab;
+            if (shouldWait) {
+                sab = new Int32Array(new SharedArrayBuffer(16 + 8192));
+                Atomics.store(sab, 0, 0);
+            }
+            let worker;
+            let tid;
+            const PThread = this.PThread;
+            try {
+                worker = PThread.getNewWorker(sab);
+                if (!worker) {
+                    throw new Error('failed to get new worker');
+                }
+                tid = PThread.markId(worker);
+                if (ENVIRONMENT_IS_NODE) {
+                    worker.unref();
+                }
+                worker.postMessage(createMessage('start', {
+                    tid,
+                    arg: startArg,
+                    sab
+                }));
+                if (shouldWait) {
+                    if (typeof waitThreadStart === 'number') {
+                        const waitResult = Atomics.wait(sab, 0, 0, waitThreadStart);
+                        if (waitResult === 'timed-out') {
+                            try {
+                                PThread.cleanThread(worker, tid, true);
+                            }
+                            catch (_) { }
+                            throw new Error('Spawning thread timed out. Please check if the worker is created successfully and if message is handled properly in the worker.');
+                        }
+                    }
+                    else {
+                        Atomics.wait(sab, 0, 0);
+                    }
+                    const r = Atomics.load(sab, 0);
+                    if (r > 1) {
+                        try {
+                            PThread.cleanThread(worker, tid, true);
+                        }
+                        catch (_) { }
+                        throw deserizeErrorFromBuffer(sab.buffer);
+                    }
+                }
+            }
+            catch (e) {
+                Atomics.store(struct, 0, 1);
+                Atomics.store(struct, 1, EAGAIN);
+                Atomics.notify(struct, 1);
+                PThread === null || PThread === void 0 ? void 0 : PThread.printErr(e.stack);
+                if (isNewABI) {
+                    return 1;
+                }
+                free(errorOrTid);
+                return -EAGAIN;
+            }
+            Atomics.store(struct, 0, 0);
+            Atomics.store(struct, 1, tid);
+            Atomics.notify(struct, 1);
+            PThread.runningWorkers.push(worker);
+            if (!shouldWait) {
+                worker.whenLoaded.catch((err) => {
+                    delete worker.whenLoaded;
+                    PThread.cleanThread(worker, tid, true);
+                    throw err;
+                });
+            }
+            if (isNewABI) {
+                return 0;
+            }
+            free(errorOrTid);
+            return tid;
+        };
+        this.threadSpawn = threadSpawn;
+        if (this.PThread) {
+            this.PThread.threadSpawn = threadSpawn;
+        }
+    }
+    getImportObject() {
+        return {
+            wasi: {
+                'thread-spawn': this.threadSpawn
+            }
+        };
+    }
+    setup(wasmInstance, wasmModule, wasmMemory) {
+        wasmMemory !== null && wasmMemory !== void 0 ? wasmMemory : (wasmMemory = wasmInstance.exports.memory);
+        this.wasmInstance = wasmInstance;
+        this.wasmMemory = wasmMemory;
+        if (this.PThread) {
+            this.PThread.setup(wasmModule, wasmMemory);
+        }
+    }
+    preloadWorkers() {
+        if (this.PThread) {
+            return this.PThread.preloadWorkers();
+        }
+        return Promise.resolve([]);
+    }
+    initialize(instance, module, memory) {
+        const exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        const wasi = this.wasi;
+        if (('_start' in exports$1) && (typeof exports$1._start === 'function')) {
+            if (this.childThread) {
+                wasi.start(instance);
+                try {
+                    const kStarted = getWasiSymbol(wasi, 'kStarted');
+                    wasi[kStarted] = false;
+                }
+                catch (_) { }
+            }
+            else {
+                setupInstance(wasi, instance);
+            }
+        }
+        else {
+            wasi.initialize(instance);
+        }
+        return instance;
+    }
+    start(instance, module, memory) {
+        const exports$1 = instance.exports;
+        memory !== null && memory !== void 0 ? memory : (memory = exports$1.memory);
+        if (this.childThread) {
+            instance = createInstanceProxy(instance, memory);
+        }
+        this.setup(instance, module, memory);
+        const exitCode = this.wasi.start(instance);
+        return { exitCode, instance };
+    }
+    terminateAllThreads() {
+        var _a;
+        if (!this.childThread) {
+            (_a = this.PThread) === null || _a === void 0 ? void 0 : _a.terminateAllThreads();
+        }
+        else {
+            this.postMessage(createMessage('terminate-all-threads', {}));
+        }
+    }
+}
+function patchWasiInstance(wasiThreads, wasi) {
+    const patched = patchedWasiInstances.get(wasiThreads);
+    if (patched.has(wasi)) {
+        return;
+    }
+    const _this = wasiThreads;
+    const wasiImport = wasi.wasiImport;
+    if (wasiImport) {
+        const proc_exit = wasiImport.proc_exit;
+        wasiImport.proc_exit = function (code) {
+            _this.terminateAllThreads();
+            return proc_exit.call(this, code);
+        };
+    }
+    if (!_this.childThread) {
+        const start = wasi.start;
+        if (typeof start === 'function') {
+            wasi.start = function (instance) {
+                try {
+                    return start.call(this, instance);
+                }
+                catch (err) {
+                    if (isTrapError(err)) {
+                        _this.terminateAllThreads();
+                    }
+                    throw err;
+                }
+            };
+        }
+    }
+    patched.add(wasi);
+}
+function getWasiSymbol(wasi, description) {
+    const symbols = Object.getOwnPropertySymbols(wasi);
+    const selectDescription = (description) => (s) => {
+        if (s.description) {
+            return s.description === description;
+        }
+        return s.toString() === `Symbol(${description})`;
+    };
+    if (Array.isArray(description)) {
+        return description.map(d => symbols.filter(selectDescription(d))[0]);
+    }
+    return symbols.filter(selectDescription(description))[0];
+}
+function setupInstance(wasi, instance) {
+    const [kInstance, kSetMemory] = getWasiSymbol(wasi, ['kInstance', 'kSetMemory']);
+    wasi[kInstance] = instance;
+    wasi[kSetMemory](instance.exports.memory);
+}
+
+class ThreadMessageHandler {
+    constructor(options) {
+        const postMsg = getPostMessage(options);
+        if (typeof postMsg !== 'function') {
+            throw new TypeError('options.postMessage is not a function');
+        }
+        this.postMessage = postMsg;
+        this.onLoad = options === null || options === void 0 ? void 0 : options.onLoad;
+        this.onError = typeof (options === null || options === void 0 ? void 0 : options.onError) === 'function' ? options.onError : (_type, err) => { throw err; };
+        this.instance = undefined;
+        this.messagesBeforeLoad = [];
+    }
+    instantiate(data) {
+        if (typeof this.onLoad === 'function') {
+            return this.onLoad(data);
+        }
+        throw new Error('ThreadMessageHandler.prototype.instantiate is not implemented');
+    }
+    handle(e) {
+        var _a;
+        if ((_a = e === null || e === void 0 ? void 0 : e.data) === null || _a === void 0 ? void 0 : _a.__emnapi__) {
+            const type = e.data.__emnapi__.type;
+            const payload = e.data.__emnapi__.payload;
+            try {
+                if (type === 'load') {
+                    this._load(payload);
+                }
+                else if (type === 'start') {
+                    this.handleAfterLoad(e, () => {
+                        this._start(payload);
+                    });
+                }
+            }
+            catch (err) {
+                this.onError(err, type);
+            }
+        }
+    }
+    _load(payload) {
+        if (this.instance !== undefined)
+            return;
+        let source;
+        try {
+            source = this.instantiate(payload);
+        }
+        catch (err) {
+            this._loaded(err, null, payload);
+            return;
+        }
+        const then = source && 'then' in source ? source.then : undefined;
+        if (typeof then === 'function') {
+            then.call(source, (source) => { this._loaded(null, source, payload); }, (err) => { this._loaded(err, null, payload); });
+        }
+        else {
+            this._loaded(null, source, payload);
+        }
+    }
+    _start(payload) {
+        const wasi_thread_start = this.instance.exports.wasi_thread_start;
+        if (typeof wasi_thread_start !== 'function') {
+            const err = new TypeError('wasi_thread_start is not exported');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        const postMessage = this.postMessage;
+        const tid = payload.tid;
+        const startArg = payload.arg;
+        notifyPthreadCreateResult(payload.sab, 1);
+        try {
+            wasi_thread_start(tid, startArg);
+        }
+        catch (err) {
+            if (err !== 'unwind') {
+                throw err;
+            }
+            else {
+                return;
+            }
+        }
+        postMessage(createMessage('cleanup-thread', { tid }));
+    }
+    _loaded(err, source, payload) {
+        if (err) {
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        if (source == null) {
+            const err = new TypeError('onLoad should return an object');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        const instance = source.instance;
+        if (!instance) {
+            const err = new TypeError('onLoad should return an object which includes "instance"');
+            notifyPthreadCreateResult(payload.sab, 2, err);
+            throw err;
+        }
+        this.instance = instance;
+        const postMessage = this.postMessage;
+        postMessage(createMessage('loaded', {}));
+        const messages = this.messagesBeforeLoad;
+        this.messagesBeforeLoad = [];
+        for (let i = 0; i < messages.length; i++) {
+            const data = messages[i];
+            this.handle({ data });
+        }
+    }
+    handleAfterLoad(e, f) {
+        if (this.instance !== undefined) {
+            f.call(this, e);
+        }
+        else {
+            this.messagesBeforeLoad.push(e.data);
+        }
+    }
+}
+function notifyPthreadCreateResult(sab, result, error) {
+    if (sab) {
+        serizeErrorToBuffer(sab.buffer, result, error);
+        Atomics.notify(sab, 0);
+    }
+}
+
+export { ThreadManager, ThreadMessageHandler, WASIThreads, createInstanceProxy, isSharedArrayBuffer, isTrapError };
@@ -0,0 +1,5 @@
+if (typeof process !== 'undefined' && process.env.NODE_ENV === 'production') {
+  module.exports = require('./dist/wasi-threads.cjs.min.js')
+} else {
+  module.exports = require('./dist/wasi-threads.cjs.js')
+}
@@ -0,0 +1,50 @@
+{
+  "name": "@emnapi/wasi-threads",
+  "version": "1.2.1",
+  "description": "WASI threads proposal implementation in JavaScript",
+  "main": "index.js",
+  "module": "./dist/wasi-threads.esm-bundler.js",
+  "types": "./dist/wasi-threads.d.ts",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "types": {
+        "module": "./dist/wasi-threads.d.ts",
+        "import": "./dist/wasi-threads.d.mts",
+        "default": "./dist/wasi-threads.d.ts"
+      },
+      "module": "./dist/wasi-threads.esm-bundler.js",
+      "import": "./dist/wasi-threads.mjs",
+      "default": "./index.js"
+    },
+    "./dist/wasi-threads.cjs.min": {
+      "types": "./dist/wasi-threads.d.ts",
+      "default": "./dist/wasi-threads.cjs.min.js"
+    },
+    "./dist/wasi-threads.min.mjs": {
+      "types": "./dist/wasi-threads.d.mts",
+      "default": "./dist/wasi-threads.min.mjs"
+    }
+  },
+  "dependencies": {
+    "tslib": "^2.4.0"
+  },
+  "scripts": {
+    "build": "node ./script/build.js",
+    "build:test": "node ./test/build.js",
+    "test": "node ./test/index.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/toyobayashi/emnapi.git"
+  },
+  "author": "toyobayashi",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/toyobayashi/emnapi/issues"
+  },
+  "homepage": "https://github.com/toyobayashi/emnapi#readme",
+  "publishConfig": {
+    "access": "public"
+  }
+}
@@ -0,0 +1,19 @@
+Copyright 2024 Justin Ridgewell <justin@ridgewell.name>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1,227 @@
+# @jridgewell/gen-mapping
+
+> Generate source maps
+
+`gen-mapping` allows you to generate a source map during transpilation or minification.
+With a source map, you're able to trace the original location in the source file, either in Chrome's
+DevTools or using a library like [`@jridgewell/trace-mapping`][trace-mapping].
+
+You may already be familiar with the [`source-map`][source-map] package's `SourceMapGenerator`. This
+provides the same `addMapping` and `setSourceContent` API.
+
+## Installation
+
+```sh
+npm install @jridgewell/gen-mapping
+```
+
+## Usage
+
+```typescript
+import { GenMapping, addMapping, setSourceContent, toEncodedMap, toDecodedMap } from '@jridgewell/gen-mapping';
+
+const map = new GenMapping({
+  file: 'output.js',
+  sourceRoot: 'https://example.com/',
+});
+
+setSourceContent(map, 'input.js', `function foo() {}`);
+
+addMapping(map, {
+  // Lines start at line 1, columns at column 0.
+  generated: { line: 1, column: 0 },
+  source: 'input.js',
+  original: { line: 1, column: 0 },
+});
+
+addMapping(map, {
+  generated: { line: 1, column: 9 },
+  source: 'input.js',
+  original: { line: 1, column: 9 },
+  name: 'foo',
+});
+
+assert.deepEqual(toDecodedMap(map), {
+  version: 3,
+  file: 'output.js',
+  names: ['foo'],
+  sourceRoot: 'https://example.com/',
+  sources: ['input.js'],
+  sourcesContent: ['function foo() {}'],
+  mappings: [
+    [ [0, 0, 0, 0], [9, 0, 0, 9, 0] ]
+  ],
+});
+
+assert.deepEqual(toEncodedMap(map), {
+  version: 3,
+  file: 'output.js',
+  names: ['foo'],
+  sourceRoot: 'https://example.com/',
+  sources: ['input.js'],
+  sourcesContent: ['function foo() {}'],
+  mappings: 'AAAA,SAASA',
+});
+```
+
+### Smaller Sourcemaps
+
+Not everything needs to be added to a sourcemap, and needless markings can cause signficantly
+larger file sizes. `gen-mapping` exposes `maybeAddSegment`/`maybeAddMapping` APIs that will
+intelligently determine if this marking adds useful information. If not, the marking will be
+skipped.
+
+```typescript
+import { maybeAddMapping } from '@jridgewell/gen-mapping';
+
+const map = new GenMapping();
+
+// Adding a sourceless marking at the beginning of a line isn't useful.
+maybeAddMapping(map, {
+  generated: { line: 1, column: 0 },
+});
+
+// Adding a new source marking is useful.
+maybeAddMapping(map, {
+  generated: { line: 1, column: 0 },
+  source: 'input.js',
+  original: { line: 1, column: 0 },
+});
+
+// But adding another marking pointing to the exact same original location isn't, even if the
+// generated column changed.
+maybeAddMapping(map, {
+  generated: { line: 1, column: 9 },
+  source: 'input.js',
+  original: { line: 1, column: 0 },
+});
+
+assert.deepEqual(toEncodedMap(map), {
+  version: 3,
+  names: [],
+  sources: ['input.js'],
+  sourcesContent: [null],
+  mappings: 'AAAA',
+});
+```
+
+## Benchmarks
+
+```
+node v18.0.0
+
+amp.js.map
+Memory Usage:
+gen-mapping: addSegment      5852872 bytes
+gen-mapping: addMapping      7716042 bytes
+source-map-js                6143250 bytes
+source-map-0.6.1             6124102 bytes
+source-map-0.8.0             6121173 bytes
+Smallest memory usage is gen-mapping: addSegment
+
+Adding speed:
+gen-mapping:      addSegment x 441 ops/sec ±2.07% (90 runs sampled)
+gen-mapping:      addMapping x 350 ops/sec ±2.40% (86 runs sampled)
+source-map-js:    addMapping x 169 ops/sec ±2.42% (80 runs sampled)
+source-map-0.6.1: addMapping x 167 ops/sec ±2.56% (80 runs sampled)
+source-map-0.8.0: addMapping x 168 ops/sec ±2.52% (80 runs sampled)
+Fastest is gen-mapping:      addSegment
+
+Generate speed:
+gen-mapping:      decoded output x 150,824,370 ops/sec ±0.07% (102 runs sampled)
+gen-mapping:      encoded output x 663 ops/sec ±0.22% (98 runs sampled)
+source-map-js:    encoded output x 197 ops/sec ±0.45% (84 runs sampled)
+source-map-0.6.1: encoded output x 198 ops/sec ±0.33% (85 runs sampled)
+source-map-0.8.0: encoded output x 197 ops/sec ±0.06% (93 runs sampled)
+Fastest is gen-mapping:      decoded output
+
+
+***
+
+
+babel.min.js.map
+Memory Usage:
+gen-mapping: addSegment     37578063 bytes
+gen-mapping: addMapping     37212897 bytes
+source-map-js               47638527 bytes
+source-map-0.6.1            47690503 bytes
+source-map-0.8.0            47470188 bytes
+Smallest memory usage is gen-mapping: addMapping
+
+Adding speed:
+gen-mapping:      addSegment x 31.05 ops/sec ±8.31% (43 runs sampled)
+gen-mapping:      addMapping x 29.83 ops/sec ±7.36% (51 runs sampled)
+source-map-js:    addMapping x 20.73 ops/sec ±6.22% (38 runs sampled)
+source-map-0.6.1: addMapping x 20.03 ops/sec ±10.51% (38 runs sampled)
+source-map-0.8.0: addMapping x 19.30 ops/sec ±8.27% (37 runs sampled)
+Fastest is gen-mapping:      addSegment
+
+Generate speed:
+gen-mapping:      decoded output x 381,379,234 ops/sec ±0.29% (96 runs sampled)
+gen-mapping:      encoded output x 95.15 ops/sec ±2.98% (72 runs sampled)
+source-map-js:    encoded output x 15.20 ops/sec ±7.41% (33 runs sampled)
+source-map-0.6.1: encoded output x 16.36 ops/sec ±10.46% (31 runs sampled)
+source-map-0.8.0: encoded output x 16.06 ops/sec ±6.45% (31 runs sampled)
+Fastest is gen-mapping:      decoded output
+
+
+***
+
+
+preact.js.map
+Memory Usage:
+gen-mapping: addSegment       416247 bytes
+gen-mapping: addMapping       419824 bytes
+source-map-js                1024619 bytes
+source-map-0.6.1             1146004 bytes
+source-map-0.8.0             1113250 bytes
+Smallest memory usage is gen-mapping: addSegment
+
+Adding speed:
+gen-mapping:      addSegment x 13,755 ops/sec ±0.15% (98 runs sampled)
+gen-mapping:      addMapping x 13,013 ops/sec ±0.11% (101 runs sampled)
+source-map-js:    addMapping x 4,564 ops/sec ±0.21% (98 runs sampled)
+source-map-0.6.1: addMapping x 4,562 ops/sec ±0.11% (99 runs sampled)
+source-map-0.8.0: addMapping x 4,593 ops/sec ±0.11% (100 runs sampled)
+Fastest is gen-mapping:      addSegment
+
+Generate speed:
+gen-mapping:      decoded output x 379,864,020 ops/sec ±0.23% (93 runs sampled)
+gen-mapping:      encoded output x 14,368 ops/sec ±4.07% (82 runs sampled)
+source-map-js:    encoded output x 5,261 ops/sec ±0.21% (99 runs sampled)
+source-map-0.6.1: encoded output x 5,124 ops/sec ±0.58% (99 runs sampled)
+source-map-0.8.0: encoded output x 5,434 ops/sec ±0.33% (96 runs sampled)
+Fastest is gen-mapping:      decoded output
+
+
+***
+
+
+react.js.map
+Memory Usage:
+gen-mapping: addSegment       975096 bytes
+gen-mapping: addMapping      1102981 bytes
+source-map-js                2918836 bytes
+source-map-0.6.1             2885435 bytes
+source-map-0.8.0             2874336 bytes
+Smallest memory usage is gen-mapping: addSegment
+
+Adding speed:
+gen-mapping:      addSegment x 4,772 ops/sec ±0.15% (100 runs sampled)
+gen-mapping:      addMapping x 4,456 ops/sec ±0.13% (97 runs sampled)
+source-map-js:    addMapping x 1,618 ops/sec ±0.24% (97 runs sampled)
+source-map-0.6.1: addMapping x 1,622 ops/sec ±0.12% (99 runs sampled)
+source-map-0.8.0: addMapping x 1,631 ops/sec ±0.12% (100 runs sampled)
+Fastest is gen-mapping:      addSegment
+
+Generate speed:
+gen-mapping:      decoded output x 379,107,695 ops/sec ±0.07% (99 runs sampled)
+gen-mapping:      encoded output x 5,421 ops/sec ±1.60% (89 runs sampled)
+source-map-js:    encoded output x 2,113 ops/sec ±1.81% (98 runs sampled)
+source-map-0.6.1: encoded output x 2,126 ops/sec ±0.10% (100 runs sampled)
+source-map-0.8.0: encoded output x 2,176 ops/sec ±0.39% (98 runs sampled)
+Fastest is gen-mapping:      decoded output
+```
+
+[source-map]: https://www.npmjs.com/package/source-map
+[trace-mapping]: https://github.com/jridgewell/sourcemaps/tree/main/packages/trace-mapping
@@ -0,0 +1,292 @@
+// src/set-array.ts
+var SetArray = class {
+  constructor() {
+    this._indexes = { __proto__: null };
+    this.array = [];
+  }
+};
+function cast(set) {
+  return set;
+}
+function get(setarr, key) {
+  return cast(setarr)._indexes[key];
+}
+function put(setarr, key) {
+  const index = get(setarr, key);
+  if (index !== void 0) return index;
+  const { array, _indexes: indexes } = cast(setarr);
+  const length = array.push(key);
+  return indexes[key] = length - 1;
+}
+function remove(setarr, key) {
+  const index = get(setarr, key);
+  if (index === void 0) return;
+  const { array, _indexes: indexes } = cast(setarr);
+  for (let i = index + 1; i < array.length; i++) {
+    const k = array[i];
+    array[i - 1] = k;
+    indexes[k]--;
+  }
+  indexes[key] = void 0;
+  array.pop();
+}
+
+// src/gen-mapping.ts
+import {
+  encode
+} from "@jridgewell/sourcemap-codec";
+import { TraceMap, decodedMappings } from "@jridgewell/trace-mapping";
+
+// src/sourcemap-segment.ts
+var COLUMN = 0;
+var SOURCES_INDEX = 1;
+var SOURCE_LINE = 2;
+var SOURCE_COLUMN = 3;
+var NAMES_INDEX = 4;
+
+// src/gen-mapping.ts
+var NO_NAME = -1;
+var GenMapping = class {
+  constructor({ file, sourceRoot } = {}) {
+    this._names = new SetArray();
+    this._sources = new SetArray();
+    this._sourcesContent = [];
+    this._mappings = [];
+    this.file = file;
+    this.sourceRoot = sourceRoot;
+    this._ignoreList = new SetArray();
+  }
+};
+function cast2(map) {
+  return map;
+}
+function addSegment(map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) {
+  return addSegmentInternal(
+    false,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content
+  );
+}
+function addMapping(map, mapping) {
+  return addMappingInternal(false, map, mapping);
+}
+var maybeAddSegment = (map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) => {
+  return addSegmentInternal(
+    true,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content
+  );
+};
+var maybeAddMapping = (map, mapping) => {
+  return addMappingInternal(true, map, mapping);
+};
+function setSourceContent(map, source, content) {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const index = put(sources, source);
+  sourcesContent[index] = content;
+}
+function setIgnore(map, source, ignore = true) {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _ignoreList: ignoreList
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const index = put(sources, source);
+  if (index === sourcesContent.length) sourcesContent[index] = null;
+  if (ignore) put(ignoreList, index);
+  else remove(ignoreList, index);
+}
+function toDecodedMap(map) {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names,
+    _ignoreList: ignoreList
+    // _originalScopes: originalScopes,
+    // _generatedRanges: generatedRanges,
+  } = cast2(map);
+  removeEmptyFinalLines(mappings);
+  return {
+    version: 3,
+    file: map.file || void 0,
+    names: names.array,
+    sourceRoot: map.sourceRoot || void 0,
+    sources: sources.array,
+    sourcesContent,
+    mappings,
+    // originalScopes,
+    // generatedRanges,
+    ignoreList: ignoreList.array
+  };
+}
+function toEncodedMap(map) {
+  const decoded = toDecodedMap(map);
+  return Object.assign({}, decoded, {
+    // originalScopes: decoded.originalScopes.map((os) => encodeOriginalScopes(os)),
+    // generatedRanges: encodeGeneratedRanges(decoded.generatedRanges as GeneratedRange[]),
+    mappings: encode(decoded.mappings)
+  });
+}
+function fromMap(input) {
+  const map = new TraceMap(input);
+  const gen = new GenMapping({ file: map.file, sourceRoot: map.sourceRoot });
+  putAll(cast2(gen)._names, map.names);
+  putAll(cast2(gen)._sources, map.sources);
+  cast2(gen)._sourcesContent = map.sourcesContent || map.sources.map(() => null);
+  cast2(gen)._mappings = decodedMappings(map);
+  if (map.ignoreList) putAll(cast2(gen)._ignoreList, map.ignoreList);
+  return gen;
+}
+function allMappings(map) {
+  const out = [];
+  const { _mappings: mappings, _sources: sources, _names: names } = cast2(map);
+  for (let i = 0; i < mappings.length; i++) {
+    const line = mappings[i];
+    for (let j = 0; j < line.length; j++) {
+      const seg = line[j];
+      const generated = { line: i + 1, column: seg[COLUMN] };
+      let source = void 0;
+      let original = void 0;
+      let name = void 0;
+      if (seg.length !== 1) {
+        source = sources.array[seg[SOURCES_INDEX]];
+        original = { line: seg[SOURCE_LINE] + 1, column: seg[SOURCE_COLUMN] };
+        if (seg.length === 5) name = names.array[seg[NAMES_INDEX]];
+      }
+      out.push({ generated, source, original, name });
+    }
+  }
+  return out;
+}
+function addSegmentInternal(skipable, map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const line = getIndex(mappings, genLine);
+  const index = getColumnIndex(line, genColumn);
+  if (!source) {
+    if (skipable && skipSourceless(line, index)) return;
+    return insert(line, index, [genColumn]);
+  }
+  assert(sourceLine);
+  assert(sourceColumn);
+  const sourcesIndex = put(sources, source);
+  const namesIndex = name ? put(names, name) : NO_NAME;
+  if (sourcesIndex === sourcesContent.length) sourcesContent[sourcesIndex] = content != null ? content : null;
+  if (skipable && skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex)) {
+    return;
+  }
+  return insert(
+    line,
+    index,
+    name ? [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex] : [genColumn, sourcesIndex, sourceLine, sourceColumn]
+  );
+}
+function assert(_val) {
+}
+function getIndex(arr, index) {
+  for (let i = arr.length; i <= index; i++) {
+    arr[i] = [];
+  }
+  return arr[index];
+}
+function getColumnIndex(line, genColumn) {
+  let index = line.length;
+  for (let i = index - 1; i >= 0; index = i--) {
+    const current = line[i];
+    if (genColumn >= current[COLUMN]) break;
+  }
+  return index;
+}
+function insert(array, index, value) {
+  for (let i = array.length; i > index; i--) {
+    array[i] = array[i - 1];
+  }
+  array[index] = value;
+}
+function removeEmptyFinalLines(mappings) {
+  const { length } = mappings;
+  let len = length;
+  for (let i = len - 1; i >= 0; len = i, i--) {
+    if (mappings[i].length > 0) break;
+  }
+  if (len < length) mappings.length = len;
+}
+function putAll(setarr, array) {
+  for (let i = 0; i < array.length; i++) put(setarr, array[i]);
+}
+function skipSourceless(line, index) {
+  if (index === 0) return true;
+  const prev = line[index - 1];
+  return prev.length === 1;
+}
+function skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex) {
+  if (index === 0) return false;
+  const prev = line[index - 1];
+  if (prev.length === 1) return false;
+  return sourcesIndex === prev[SOURCES_INDEX] && sourceLine === prev[SOURCE_LINE] && sourceColumn === prev[SOURCE_COLUMN] && namesIndex === (prev.length === 5 ? prev[NAMES_INDEX] : NO_NAME);
+}
+function addMappingInternal(skipable, map, mapping) {
+  const { generated, source, original, name, content } = mapping;
+  if (!source) {
+    return addSegmentInternal(
+      skipable,
+      map,
+      generated.line - 1,
+      generated.column,
+      null,
+      null,
+      null,
+      null,
+      null
+    );
+  }
+  assert(original);
+  return addSegmentInternal(
+    skipable,
+    map,
+    generated.line - 1,
+    generated.column,
+    source,
+    original.line - 1,
+    original.column,
+    name,
+    content
+  );
+}
+export {
+  GenMapping,
+  addMapping,
+  addSegment,
+  allMappings,
+  fromMap,
+  maybeAddMapping,
+  maybeAddSegment,
+  setIgnore,
+  setSourceContent,
+  toDecodedMap,
+  toEncodedMap
+};
+//# sourceMappingURL=gen-mapping.mjs.map
@@ -0,0 +1,358 @@
+(function (global, factory) {
+  if (typeof exports === 'object' && typeof module !== 'undefined') {
+    factory(module, require('@jridgewell/sourcemap-codec'), require('@jridgewell/trace-mapping'));
+    module.exports = def(module);
+  } else if (typeof define === 'function' && define.amd) {
+    define(['module', '@jridgewell/sourcemap-codec', '@jridgewell/trace-mapping'], function(mod) {
+      factory.apply(this, arguments);
+      mod.exports = def(mod);
+    });
+  } else {
+    const mod = { exports: {} };
+    factory(mod, global.sourcemapCodec, global.traceMapping);
+    global = typeof globalThis !== 'undefined' ? globalThis : global || self;
+    global.genMapping = def(mod);
+  }
+  function def(m) { return 'default' in m.exports ? m.exports.default : m.exports; }
+})(this, (function (module, require_sourcemapCodec, require_traceMapping) {
+"use strict";
+var __create = Object.create;
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __getProtoOf = Object.getPrototypeOf;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __commonJS = (cb, mod) => function __require() {
+  return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports;
+};
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
+  // If the importer is in node compatibility mode or this is not an ESM
+  // file that has been converted to a CommonJS file using a Babel-
+  // compatible transform (i.e. "__esModule" has not been set), then set
+  // "default" to the CommonJS "module.exports" for node compatibility.
+  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
+  mod
+));
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+
+// umd:@jridgewell/sourcemap-codec
+var require_sourcemap_codec = __commonJS({
+  "umd:@jridgewell/sourcemap-codec"(exports, module2) {
+    module2.exports = require_sourcemapCodec;
+  }
+});
+
+// umd:@jridgewell/trace-mapping
+var require_trace_mapping = __commonJS({
+  "umd:@jridgewell/trace-mapping"(exports, module2) {
+    module2.exports = require_traceMapping;
+  }
+});
+
+// src/gen-mapping.ts
+var gen_mapping_exports = {};
+__export(gen_mapping_exports, {
+  GenMapping: () => GenMapping,
+  addMapping: () => addMapping,
+  addSegment: () => addSegment,
+  allMappings: () => allMappings,
+  fromMap: () => fromMap,
+  maybeAddMapping: () => maybeAddMapping,
+  maybeAddSegment: () => maybeAddSegment,
+  setIgnore: () => setIgnore,
+  setSourceContent: () => setSourceContent,
+  toDecodedMap: () => toDecodedMap,
+  toEncodedMap: () => toEncodedMap
+});
+module.exports = __toCommonJS(gen_mapping_exports);
+
+// src/set-array.ts
+var SetArray = class {
+  constructor() {
+    this._indexes = { __proto__: null };
+    this.array = [];
+  }
+};
+function cast(set) {
+  return set;
+}
+function get(setarr, key) {
+  return cast(setarr)._indexes[key];
+}
+function put(setarr, key) {
+  const index = get(setarr, key);
+  if (index !== void 0) return index;
+  const { array, _indexes: indexes } = cast(setarr);
+  const length = array.push(key);
+  return indexes[key] = length - 1;
+}
+function remove(setarr, key) {
+  const index = get(setarr, key);
+  if (index === void 0) return;
+  const { array, _indexes: indexes } = cast(setarr);
+  for (let i = index + 1; i < array.length; i++) {
+    const k = array[i];
+    array[i - 1] = k;
+    indexes[k]--;
+  }
+  indexes[key] = void 0;
+  array.pop();
+}
+
+// src/gen-mapping.ts
+var import_sourcemap_codec = __toESM(require_sourcemap_codec());
+var import_trace_mapping = __toESM(require_trace_mapping());
+
+// src/sourcemap-segment.ts
+var COLUMN = 0;
+var SOURCES_INDEX = 1;
+var SOURCE_LINE = 2;
+var SOURCE_COLUMN = 3;
+var NAMES_INDEX = 4;
+
+// src/gen-mapping.ts
+var NO_NAME = -1;
+var GenMapping = class {
+  constructor({ file, sourceRoot } = {}) {
+    this._names = new SetArray();
+    this._sources = new SetArray();
+    this._sourcesContent = [];
+    this._mappings = [];
+    this.file = file;
+    this.sourceRoot = sourceRoot;
+    this._ignoreList = new SetArray();
+  }
+};
+function cast2(map) {
+  return map;
+}
+function addSegment(map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) {
+  return addSegmentInternal(
+    false,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content
+  );
+}
+function addMapping(map, mapping) {
+  return addMappingInternal(false, map, mapping);
+}
+var maybeAddSegment = (map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) => {
+  return addSegmentInternal(
+    true,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content
+  );
+};
+var maybeAddMapping = (map, mapping) => {
+  return addMappingInternal(true, map, mapping);
+};
+function setSourceContent(map, source, content) {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const index = put(sources, source);
+  sourcesContent[index] = content;
+}
+function setIgnore(map, source, ignore = true) {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _ignoreList: ignoreList
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const index = put(sources, source);
+  if (index === sourcesContent.length) sourcesContent[index] = null;
+  if (ignore) put(ignoreList, index);
+  else remove(ignoreList, index);
+}
+function toDecodedMap(map) {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names,
+    _ignoreList: ignoreList
+    // _originalScopes: originalScopes,
+    // _generatedRanges: generatedRanges,
+  } = cast2(map);
+  removeEmptyFinalLines(mappings);
+  return {
+    version: 3,
+    file: map.file || void 0,
+    names: names.array,
+    sourceRoot: map.sourceRoot || void 0,
+    sources: sources.array,
+    sourcesContent,
+    mappings,
+    // originalScopes,
+    // generatedRanges,
+    ignoreList: ignoreList.array
+  };
+}
+function toEncodedMap(map) {
+  const decoded = toDecodedMap(map);
+  return Object.assign({}, decoded, {
+    // originalScopes: decoded.originalScopes.map((os) => encodeOriginalScopes(os)),
+    // generatedRanges: encodeGeneratedRanges(decoded.generatedRanges as GeneratedRange[]),
+    mappings: (0, import_sourcemap_codec.encode)(decoded.mappings)
+  });
+}
+function fromMap(input) {
+  const map = new import_trace_mapping.TraceMap(input);
+  const gen = new GenMapping({ file: map.file, sourceRoot: map.sourceRoot });
+  putAll(cast2(gen)._names, map.names);
+  putAll(cast2(gen)._sources, map.sources);
+  cast2(gen)._sourcesContent = map.sourcesContent || map.sources.map(() => null);
+  cast2(gen)._mappings = (0, import_trace_mapping.decodedMappings)(map);
+  if (map.ignoreList) putAll(cast2(gen)._ignoreList, map.ignoreList);
+  return gen;
+}
+function allMappings(map) {
+  const out = [];
+  const { _mappings: mappings, _sources: sources, _names: names } = cast2(map);
+  for (let i = 0; i < mappings.length; i++) {
+    const line = mappings[i];
+    for (let j = 0; j < line.length; j++) {
+      const seg = line[j];
+      const generated = { line: i + 1, column: seg[COLUMN] };
+      let source = void 0;
+      let original = void 0;
+      let name = void 0;
+      if (seg.length !== 1) {
+        source = sources.array[seg[SOURCES_INDEX]];
+        original = { line: seg[SOURCE_LINE] + 1, column: seg[SOURCE_COLUMN] };
+        if (seg.length === 5) name = names.array[seg[NAMES_INDEX]];
+      }
+      out.push({ generated, source, original, name });
+    }
+  }
+  return out;
+}
+function addSegmentInternal(skipable, map, genLine, genColumn, source, sourceLine, sourceColumn, name, content) {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names
+    // _originalScopes: originalScopes,
+  } = cast2(map);
+  const line = getIndex(mappings, genLine);
+  const index = getColumnIndex(line, genColumn);
+  if (!source) {
+    if (skipable && skipSourceless(line, index)) return;
+    return insert(line, index, [genColumn]);
+  }
+  assert(sourceLine);
+  assert(sourceColumn);
+  const sourcesIndex = put(sources, source);
+  const namesIndex = name ? put(names, name) : NO_NAME;
+  if (sourcesIndex === sourcesContent.length) sourcesContent[sourcesIndex] = content != null ? content : null;
+  if (skipable && skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex)) {
+    return;
+  }
+  return insert(
+    line,
+    index,
+    name ? [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex] : [genColumn, sourcesIndex, sourceLine, sourceColumn]
+  );
+}
+function assert(_val) {
+}
+function getIndex(arr, index) {
+  for (let i = arr.length; i <= index; i++) {
+    arr[i] = [];
+  }
+  return arr[index];
+}
+function getColumnIndex(line, genColumn) {
+  let index = line.length;
+  for (let i = index - 1; i >= 0; index = i--) {
+    const current = line[i];
+    if (genColumn >= current[COLUMN]) break;
+  }
+  return index;
+}
+function insert(array, index, value) {
+  for (let i = array.length; i > index; i--) {
+    array[i] = array[i - 1];
+  }
+  array[index] = value;
+}
+function removeEmptyFinalLines(mappings) {
+  const { length } = mappings;
+  let len = length;
+  for (let i = len - 1; i >= 0; len = i, i--) {
+    if (mappings[i].length > 0) break;
+  }
+  if (len < length) mappings.length = len;
+}
+function putAll(setarr, array) {
+  for (let i = 0; i < array.length; i++) put(setarr, array[i]);
+}
+function skipSourceless(line, index) {
+  if (index === 0) return true;
+  const prev = line[index - 1];
+  return prev.length === 1;
+}
+function skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex) {
+  if (index === 0) return false;
+  const prev = line[index - 1];
+  if (prev.length === 1) return false;
+  return sourcesIndex === prev[SOURCES_INDEX] && sourceLine === prev[SOURCE_LINE] && sourceColumn === prev[SOURCE_COLUMN] && namesIndex === (prev.length === 5 ? prev[NAMES_INDEX] : NO_NAME);
+}
+function addMappingInternal(skipable, map, mapping) {
+  const { generated, source, original, name, content } = mapping;
+  if (!source) {
+    return addSegmentInternal(
+      skipable,
+      map,
+      generated.line - 1,
+      generated.column,
+      null,
+      null,
+      null,
+      null,
+      null
+    );
+  }
+  assert(original);
+  return addSegmentInternal(
+    skipable,
+    map,
+    generated.line - 1,
+    generated.column,
+    source,
+    original.line - 1,
+    original.column,
+    name,
+    content
+  );
+}
+}));
+//# sourceMappingURL=gen-mapping.umd.js.map
@@ -0,0 +1,88 @@
+import type { SourceMapInput } from '@jridgewell/trace-mapping';
+import type { DecodedSourceMap, EncodedSourceMap, Pos, Mapping } from './types';
+export type { DecodedSourceMap, EncodedSourceMap, Mapping };
+export type Options = {
+    file?: string | null;
+    sourceRoot?: string | null;
+};
+/**
+ * Provides the state to generate a sourcemap.
+ */
+export declare class GenMapping {
+    private _names;
+    private _sources;
+    private _sourcesContent;
+    private _mappings;
+    private _ignoreList;
+    file: string | null | undefined;
+    sourceRoot: string | null | undefined;
+    constructor({ file, sourceRoot }?: Options);
+}
+/**
+ * A low-level API to associate a generated position with an original source position. Line and
+ * column here are 0-based, unlike `addMapping`.
+ */
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source?: null, sourceLine?: null, sourceColumn?: null, name?: null, content?: null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name?: null, content?: string | null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name: string, content?: string | null): void;
+/**
+ * A high-level API to associate a generated position with an original source position. Line is
+ * 1-based, but column is 0-based, due to legacy behavior in `source-map` library.
+ */
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source?: null;
+    original?: null;
+    name?: null;
+    content?: null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name?: null;
+    content?: string | null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+    content?: string | null;
+}): void;
+/**
+ * Same as `addSegment`, but will only add the segment if it generates useful information in the
+ * resulting map. This only works correctly if segments are added **in order**, meaning you should
+ * not add a segment with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddSegment: typeof addSegment;
+/**
+ * Same as `addMapping`, but will only add the mapping if it generates useful information in the
+ * resulting map. This only works correctly if mappings are added **in order**, meaning you should
+ * not add a mapping with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddMapping: typeof addMapping;
+/**
+ * Adds/removes the content of the source file to the source map.
+ */
+export declare function setSourceContent(map: GenMapping, source: string, content: string | null): void;
+export declare function setIgnore(map: GenMapping, source: string, ignore?: boolean): void;
+/**
+ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toDecodedMap(map: GenMapping): DecodedSourceMap;
+/**
+ * Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toEncodedMap(map: GenMapping): EncodedSourceMap;
+/**
+ * Constructs a new GenMapping, using the already present mappings of the input.
+ */
+export declare function fromMap(input: SourceMapInput): GenMapping;
+/**
+ * Returns an array of high-level mapping objects for every recorded segment, which could then be
+ * passed to the `source-map` library.
+ */
+export declare function allMappings(map: GenMapping): Mapping[];
@@ -0,0 +1,32 @@
+type Key = string | number | symbol;
+/**
+ * SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
+ * index of the `key` in the backing array.
+ *
+ * This is designed to allow synchronizing a second array with the contents of the backing array,
+ * like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
+ * and there are never duplicates.
+ */
+export declare class SetArray<T extends Key = Key> {
+    private _indexes;
+    array: readonly T[];
+    constructor();
+}
+/**
+ * Gets the index associated with `key` in the backing array, if it is already present.
+ */
+export declare function get<T extends Key>(setarr: SetArray<T>, key: T): number | undefined;
+/**
+ * Puts `key` into the backing array, if it is not already present. Returns
+ * the index of the `key` in the backing array.
+ */
+export declare function put<T extends Key>(setarr: SetArray<T>, key: T): number;
+/**
+ * Pops the last added item out of the SetArray.
+ */
+export declare function pop<T extends Key>(setarr: SetArray<T>): void;
+/**
+ * Removes the key, if it exists in the set.
+ */
+export declare function remove<T extends Key>(setarr: SetArray<T>, key: T): void;
+export {};
@@ -0,0 +1,12 @@
+type GeneratedColumn = number;
+type SourcesIndex = number;
+type SourceLine = number;
+type SourceColumn = number;
+type NamesIndex = number;
+export type SourceMapSegment = [GeneratedColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn, NamesIndex];
+export declare const COLUMN = 0;
+export declare const SOURCES_INDEX = 1;
+export declare const SOURCE_LINE = 2;
+export declare const SOURCE_COLUMN = 3;
+export declare const NAMES_INDEX = 4;
+export {};
@@ -0,0 +1,43 @@
+import type { SourceMapSegment } from './sourcemap-segment';
+export interface SourceMapV3 {
+    file?: string | null;
+    names: readonly string[];
+    sourceRoot?: string;
+    sources: readonly (string | null)[];
+    sourcesContent?: readonly (string | null)[];
+    version: 3;
+    ignoreList?: readonly number[];
+}
+export interface EncodedSourceMap extends SourceMapV3 {
+    mappings: string;
+}
+export interface DecodedSourceMap extends SourceMapV3 {
+    mappings: readonly SourceMapSegment[][];
+}
+export interface Pos {
+    line: number;
+    column: number;
+}
+export interface OriginalPos extends Pos {
+    source: string;
+}
+export interface BindingExpressionRange {
+    start: Pos;
+    expression: string;
+}
+export type Mapping = {
+    generated: Pos;
+    source: undefined;
+    original: undefined;
+    name: undefined;
+} | {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+} | {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: undefined;
+};
@@ -0,0 +1,67 @@
+{
+  "name": "@jridgewell/gen-mapping",
+  "version": "0.3.13",
+  "description": "Generate source maps",
+  "keywords": [
+    "source",
+    "map"
+  ],
+  "main": "dist/gen-mapping.umd.js",
+  "module": "dist/gen-mapping.mjs",
+  "types": "types/gen-mapping.d.cts",
+  "files": [
+    "dist",
+    "src",
+    "types"
+  ],
+  "exports": {
+    ".": [
+      {
+        "import": {
+          "types": "./types/gen-mapping.d.mts",
+          "default": "./dist/gen-mapping.mjs"
+        },
+        "default": {
+          "types": "./types/gen-mapping.d.cts",
+          "default": "./dist/gen-mapping.umd.js"
+        }
+      },
+      "./dist/gen-mapping.umd.js"
+    ],
+    "./package.json": "./package.json"
+  },
+  "scripts": {
+    "benchmark": "run-s build:code benchmark:*",
+    "benchmark:install": "cd benchmark && npm install",
+    "benchmark:only": "node --expose-gc benchmark/index.js",
+    "build": "run-s -n build:code build:types",
+    "build:code": "node ../../esbuild.mjs gen-mapping.ts",
+    "build:types": "run-s build:types:force build:types:emit build:types:mts",
+    "build:types:force": "rimraf tsconfig.build.tsbuildinfo",
+    "build:types:emit": "tsc --project tsconfig.build.json",
+    "build:types:mts": "node ../../mts-types.mjs",
+    "clean": "run-s -n clean:code clean:types",
+    "clean:code": "tsc --build --clean tsconfig.build.json",
+    "clean:types": "rimraf dist types",
+    "test": "run-s -n test:types test:only test:format",
+    "test:format": "prettier --check '{src,test}/**/*.ts'",
+    "test:only": "mocha",
+    "test:types": "eslint '{src,test}/**/*.ts'",
+    "lint": "run-s -n lint:types lint:format",
+    "lint:format": "npm run test:format -- --write",
+    "lint:types": "npm run test:types -- --fix",
+    "prepublishOnly": "npm run-s -n build test"
+  },
+  "homepage": "https://github.com/jridgewell/sourcemaps/tree/main/packages/gen-mapping",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jridgewell/sourcemaps.git",
+    "directory": "packages/gen-mapping"
+  },
+  "author": "Justin Ridgewell <justin@ridgewell.name>",
+  "license": "MIT",
+  "dependencies": {
+    "@jridgewell/sourcemap-codec": "^1.5.0",
+    "@jridgewell/trace-mapping": "^0.3.24"
+  }
+}
@@ -0,0 +1,614 @@
+import { SetArray, put, remove } from './set-array';
+import {
+  encode,
+  // encodeGeneratedRanges,
+  // encodeOriginalScopes
+} from '@jridgewell/sourcemap-codec';
+import { TraceMap, decodedMappings } from '@jridgewell/trace-mapping';
+
+import {
+  COLUMN,
+  SOURCES_INDEX,
+  SOURCE_LINE,
+  SOURCE_COLUMN,
+  NAMES_INDEX,
+} from './sourcemap-segment';
+
+import type { SourceMapInput } from '@jridgewell/trace-mapping';
+// import type { OriginalScope, GeneratedRange } from '@jridgewell/sourcemap-codec';
+import type { SourceMapSegment } from './sourcemap-segment';
+import type {
+  DecodedSourceMap,
+  EncodedSourceMap,
+  Pos,
+  Mapping,
+  // BindingExpressionRange,
+  // OriginalPos,
+  // OriginalScopeInfo,
+  // GeneratedRangeInfo,
+} from './types';
+
+export type { DecodedSourceMap, EncodedSourceMap, Mapping };
+
+export type Options = {
+  file?: string | null;
+  sourceRoot?: string | null;
+};
+
+const NO_NAME = -1;
+
+/**
+ * Provides the state to generate a sourcemap.
+ */
+export class GenMapping {
+  declare private _names: SetArray<string>;
+  declare private _sources: SetArray<string>;
+  declare private _sourcesContent: (string | null)[];
+  declare private _mappings: SourceMapSegment[][];
+  // private declare _originalScopes: OriginalScope[][];
+  // private declare _generatedRanges: GeneratedRange[];
+  declare private _ignoreList: SetArray<number>;
+  declare file: string | null | undefined;
+  declare sourceRoot: string | null | undefined;
+
+  constructor({ file, sourceRoot }: Options = {}) {
+    this._names = new SetArray();
+    this._sources = new SetArray();
+    this._sourcesContent = [];
+    this._mappings = [];
+    // this._originalScopes = [];
+    // this._generatedRanges = [];
+    this.file = file;
+    this.sourceRoot = sourceRoot;
+    this._ignoreList = new SetArray();
+  }
+}
+
+interface PublicMap {
+  _names: GenMapping['_names'];
+  _sources: GenMapping['_sources'];
+  _sourcesContent: GenMapping['_sourcesContent'];
+  _mappings: GenMapping['_mappings'];
+  // _originalScopes: GenMapping['_originalScopes'];
+  // _generatedRanges: GenMapping['_generatedRanges'];
+  _ignoreList: GenMapping['_ignoreList'];
+}
+
+/**
+ * Typescript doesn't allow friend access to private fields, so this just casts the map into a type
+ * with public access modifiers.
+ */
+function cast(map: unknown): PublicMap {
+  return map as any;
+}
+
+/**
+ * A low-level API to associate a generated position with an original source position. Line and
+ * column here are 0-based, unlike `addMapping`.
+ */
+export function addSegment(
+  map: GenMapping,
+  genLine: number,
+  genColumn: number,
+  source?: null,
+  sourceLine?: null,
+  sourceColumn?: null,
+  name?: null,
+  content?: null,
+): void;
+export function addSegment(
+  map: GenMapping,
+  genLine: number,
+  genColumn: number,
+  source: string,
+  sourceLine: number,
+  sourceColumn: number,
+  name?: null,
+  content?: string | null,
+): void;
+export function addSegment(
+  map: GenMapping,
+  genLine: number,
+  genColumn: number,
+  source: string,
+  sourceLine: number,
+  sourceColumn: number,
+  name: string,
+  content?: string | null,
+): void;
+export function addSegment(
+  map: GenMapping,
+  genLine: number,
+  genColumn: number,
+  source?: string | null,
+  sourceLine?: number | null,
+  sourceColumn?: number | null,
+  name?: string | null,
+  content?: string | null,
+): void {
+  return addSegmentInternal(
+    false,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content,
+  );
+}
+
+/**
+ * A high-level API to associate a generated position with an original source position. Line is
+ * 1-based, but column is 0-based, due to legacy behavior in `source-map` library.
+ */
+export function addMapping(
+  map: GenMapping,
+  mapping: {
+    generated: Pos;
+    source?: null;
+    original?: null;
+    name?: null;
+    content?: null;
+  },
+): void;
+export function addMapping(
+  map: GenMapping,
+  mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name?: null;
+    content?: string | null;
+  },
+): void;
+export function addMapping(
+  map: GenMapping,
+  mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+    content?: string | null;
+  },
+): void;
+export function addMapping(
+  map: GenMapping,
+  mapping: {
+    generated: Pos;
+    source?: string | null;
+    original?: Pos | null;
+    name?: string | null;
+    content?: string | null;
+  },
+): void {
+  return addMappingInternal(false, map, mapping as Parameters<typeof addMappingInternal>[2]);
+}
+
+/**
+ * Same as `addSegment`, but will only add the segment if it generates useful information in the
+ * resulting map. This only works correctly if segments are added **in order**, meaning you should
+ * not add a segment with a lower generated line/column than one that came before.
+ */
+export const maybeAddSegment: typeof addSegment = (
+  map,
+  genLine,
+  genColumn,
+  source,
+  sourceLine,
+  sourceColumn,
+  name,
+  content,
+) => {
+  return addSegmentInternal(
+    true,
+    map,
+    genLine,
+    genColumn,
+    source,
+    sourceLine,
+    sourceColumn,
+    name,
+    content,
+  );
+};
+
+/**
+ * Same as `addMapping`, but will only add the mapping if it generates useful information in the
+ * resulting map. This only works correctly if mappings are added **in order**, meaning you should
+ * not add a mapping with a lower generated line/column than one that came before.
+ */
+export const maybeAddMapping: typeof addMapping = (map, mapping) => {
+  return addMappingInternal(true, map, mapping as Parameters<typeof addMappingInternal>[2]);
+};
+
+/**
+ * Adds/removes the content of the source file to the source map.
+ */
+export function setSourceContent(map: GenMapping, source: string, content: string | null): void {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    // _originalScopes: originalScopes,
+  } = cast(map);
+  const index = put(sources, source);
+  sourcesContent[index] = content;
+  // if (index === originalScopes.length) originalScopes[index] = [];
+}
+
+export function setIgnore(map: GenMapping, source: string, ignore = true) {
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _ignoreList: ignoreList,
+    // _originalScopes: originalScopes,
+  } = cast(map);
+  const index = put(sources, source);
+  if (index === sourcesContent.length) sourcesContent[index] = null;
+  // if (index === originalScopes.length) originalScopes[index] = [];
+  if (ignore) put(ignoreList, index);
+  else remove(ignoreList, index);
+}
+
+/**
+ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export function toDecodedMap(map: GenMapping): DecodedSourceMap {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names,
+    _ignoreList: ignoreList,
+    // _originalScopes: originalScopes,
+    // _generatedRanges: generatedRanges,
+  } = cast(map);
+  removeEmptyFinalLines(mappings);
+
+  return {
+    version: 3,
+    file: map.file || undefined,
+    names: names.array,
+    sourceRoot: map.sourceRoot || undefined,
+    sources: sources.array,
+    sourcesContent,
+    mappings,
+    // originalScopes,
+    // generatedRanges,
+    ignoreList: ignoreList.array,
+  };
+}
+
+/**
+ * Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export function toEncodedMap(map: GenMapping): EncodedSourceMap {
+  const decoded = toDecodedMap(map);
+  return Object.assign({}, decoded, {
+    // originalScopes: decoded.originalScopes.map((os) => encodeOriginalScopes(os)),
+    // generatedRanges: encodeGeneratedRanges(decoded.generatedRanges as GeneratedRange[]),
+    mappings: encode(decoded.mappings as SourceMapSegment[][]),
+  });
+}
+
+/**
+ * Constructs a new GenMapping, using the already present mappings of the input.
+ */
+export function fromMap(input: SourceMapInput): GenMapping {
+  const map = new TraceMap(input);
+  const gen = new GenMapping({ file: map.file, sourceRoot: map.sourceRoot });
+
+  putAll(cast(gen)._names, map.names);
+  putAll(cast(gen)._sources, map.sources as string[]);
+  cast(gen)._sourcesContent = map.sourcesContent || map.sources.map(() => null);
+  cast(gen)._mappings = decodedMappings(map) as GenMapping['_mappings'];
+  // TODO: implement originalScopes/generatedRanges
+  if (map.ignoreList) putAll(cast(gen)._ignoreList, map.ignoreList);
+
+  return gen;
+}
+
+/**
+ * Returns an array of high-level mapping objects for every recorded segment, which could then be
+ * passed to the `source-map` library.
+ */
+export function allMappings(map: GenMapping): Mapping[] {
+  const out: Mapping[] = [];
+  const { _mappings: mappings, _sources: sources, _names: names } = cast(map);
+
+  for (let i = 0; i < mappings.length; i++) {
+    const line = mappings[i];
+    for (let j = 0; j < line.length; j++) {
+      const seg = line[j];
+
+      const generated = { line: i + 1, column: seg[COLUMN] };
+      let source: string | undefined = undefined;
+      let original: Pos | undefined = undefined;
+      let name: string | undefined = undefined;
+
+      if (seg.length !== 1) {
+        source = sources.array[seg[SOURCES_INDEX]];
+        original = { line: seg[SOURCE_LINE] + 1, column: seg[SOURCE_COLUMN] };
+
+        if (seg.length === 5) name = names.array[seg[NAMES_INDEX]];
+      }
+
+      out.push({ generated, source, original, name } as Mapping);
+    }
+  }
+
+  return out;
+}
+
+// This split declaration is only so that terser can elminiate the static initialization block.
+function addSegmentInternal<S extends string | null | undefined>(
+  skipable: boolean,
+  map: GenMapping,
+  genLine: number,
+  genColumn: number,
+  source: S,
+  sourceLine: S extends string ? number : null | undefined,
+  sourceColumn: S extends string ? number : null | undefined,
+  name: S extends string ? string | null | undefined : null | undefined,
+  content: S extends string ? string | null | undefined : null | undefined,
+): void {
+  const {
+    _mappings: mappings,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _names: names,
+    // _originalScopes: originalScopes,
+  } = cast(map);
+  const line = getIndex(mappings, genLine);
+  const index = getColumnIndex(line, genColumn);
+
+  if (!source) {
+    if (skipable && skipSourceless(line, index)) return;
+    return insert(line, index, [genColumn]);
+  }
+
+  // Sigh, TypeScript can't figure out sourceLine and sourceColumn aren't nullish if source
+  // isn't nullish.
+  assert<number>(sourceLine);
+  assert<number>(sourceColumn);
+
+  const sourcesIndex = put(sources, source);
+  const namesIndex = name ? put(names, name) : NO_NAME;
+  if (sourcesIndex === sourcesContent.length) sourcesContent[sourcesIndex] = content ?? null;
+  // if (sourcesIndex === originalScopes.length) originalScopes[sourcesIndex] = [];
+
+  if (skipable && skipSource(line, index, sourcesIndex, sourceLine, sourceColumn, namesIndex)) {
+    return;
+  }
+
+  return insert(
+    line,
+    index,
+    name
+      ? [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex]
+      : [genColumn, sourcesIndex, sourceLine, sourceColumn],
+  );
+}
+
+function assert<T>(_val: unknown): asserts _val is T {
+  // noop.
+}
+
+function getIndex<T>(arr: T[][], index: number): T[] {
+  for (let i = arr.length; i <= index; i++) {
+    arr[i] = [];
+  }
+  return arr[index];
+}
+
+function getColumnIndex(line: SourceMapSegment[], genColumn: number): number {
+  let index = line.length;
+  for (let i = index - 1; i >= 0; index = i--) {
+    const current = line[i];
+    if (genColumn >= current[COLUMN]) break;
+  }
+  return index;
+}
+
+function insert<T>(array: T[], index: number, value: T) {
+  for (let i = array.length; i > index; i--) {
+    array[i] = array[i - 1];
+  }
+  array[index] = value;
+}
+
+function removeEmptyFinalLines(mappings: SourceMapSegment[][]) {
+  const { length } = mappings;
+  let len = length;
+  for (let i = len - 1; i >= 0; len = i, i--) {
+    if (mappings[i].length > 0) break;
+  }
+  if (len < length) mappings.length = len;
+}
+
+function putAll<T extends string | number>(setarr: SetArray<T>, array: T[]) {
+  for (let i = 0; i < array.length; i++) put(setarr, array[i]);
+}
+
+function skipSourceless(line: SourceMapSegment[], index: number): boolean {
+  // The start of a line is already sourceless, so adding a sourceless segment to the beginning
+  // doesn't generate any useful information.
+  if (index === 0) return true;
+
+  const prev = line[index - 1];
+  // If the previous segment is also sourceless, then adding another sourceless segment doesn't
+  // genrate any new information. Else, this segment will end the source/named segment and point to
+  // a sourceless position, which is useful.
+  return prev.length === 1;
+}
+
+function skipSource(
+  line: SourceMapSegment[],
+  index: number,
+  sourcesIndex: number,
+  sourceLine: number,
+  sourceColumn: number,
+  namesIndex: number,
+): boolean {
+  // A source/named segment at the start of a line gives position at that genColumn
+  if (index === 0) return false;
+
+  const prev = line[index - 1];
+
+  // If the previous segment is sourceless, then we're transitioning to a source.
+  if (prev.length === 1) return false;
+
+  // If the previous segment maps to the exact same source position, then this segment doesn't
+  // provide any new position information.
+  return (
+    sourcesIndex === prev[SOURCES_INDEX] &&
+    sourceLine === prev[SOURCE_LINE] &&
+    sourceColumn === prev[SOURCE_COLUMN] &&
+    namesIndex === (prev.length === 5 ? prev[NAMES_INDEX] : NO_NAME)
+  );
+}
+
+function addMappingInternal<S extends string | null | undefined>(
+  skipable: boolean,
+  map: GenMapping,
+  mapping: {
+    generated: Pos;
+    source: S;
+    original: S extends string ? Pos : null | undefined;
+    name: S extends string ? string | null | undefined : null | undefined;
+    content: S extends string ? string | null | undefined : null | undefined;
+  },
+) {
+  const { generated, source, original, name, content } = mapping;
+  if (!source) {
+    return addSegmentInternal(
+      skipable,
+      map,
+      generated.line - 1,
+      generated.column,
+      null,
+      null,
+      null,
+      null,
+      null,
+    );
+  }
+  assert<Pos>(original);
+  return addSegmentInternal(
+    skipable,
+    map,
+    generated.line - 1,
+    generated.column,
+    source as string,
+    original.line - 1,
+    original.column,
+    name,
+    content,
+  );
+}
+
+/*
+export function addOriginalScope(
+  map: GenMapping,
+  data: {
+    start: Pos;
+    end: Pos;
+    source: string;
+    kind: string;
+    name?: string;
+    variables?: string[];
+  },
+): OriginalScopeInfo {
+  const { start, end, source, kind, name, variables } = data;
+  const {
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _originalScopes: originalScopes,
+    _names: names,
+  } = cast(map);
+  const index = put(sources, source);
+  if (index === sourcesContent.length) sourcesContent[index] = null;
+  if (index === originalScopes.length) originalScopes[index] = [];
+
+  const kindIndex = put(names, kind);
+  const scope: OriginalScope = name
+    ? [start.line - 1, start.column, end.line - 1, end.column, kindIndex, put(names, name)]
+    : [start.line - 1, start.column, end.line - 1, end.column, kindIndex];
+  if (variables) {
+    scope.vars = variables.map((v) => put(names, v));
+  }
+  const len = originalScopes[index].push(scope);
+  return [index, len - 1, variables];
+}
+*/
+
+// Generated Ranges
+/*
+export function addGeneratedRange(
+  map: GenMapping,
+  data: {
+    start: Pos;
+    isScope: boolean;
+    originalScope?: OriginalScopeInfo;
+    callsite?: OriginalPos;
+  },
+): GeneratedRangeInfo {
+  const { start, isScope, originalScope, callsite } = data;
+  const {
+    _originalScopes: originalScopes,
+    _sources: sources,
+    _sourcesContent: sourcesContent,
+    _generatedRanges: generatedRanges,
+  } = cast(map);
+
+  const range: GeneratedRange = [
+    start.line - 1,
+    start.column,
+    0,
+    0,
+    originalScope ? originalScope[0] : -1,
+    originalScope ? originalScope[1] : -1,
+  ];
+  if (originalScope?.[2]) {
+    range.bindings = originalScope[2].map(() => [[-1]]);
+  }
+  if (callsite) {
+    const index = put(sources, callsite.source);
+    if (index === sourcesContent.length) sourcesContent[index] = null;
+    if (index === originalScopes.length) originalScopes[index] = [];
+    range.callsite = [index, callsite.line - 1, callsite.column];
+  }
+  if (isScope) range.isScope = true;
+  generatedRanges.push(range);
+
+  return [range, originalScope?.[2]];
+}
+
+export function setEndPosition(range: GeneratedRangeInfo, pos: Pos) {
+  range[0][2] = pos.line - 1;
+  range[0][3] = pos.column;
+}
+
+export function addBinding(
+  map: GenMapping,
+  range: GeneratedRangeInfo,
+  variable: string,
+  expression: string | BindingExpressionRange,
+) {
+  const { _names: names } = cast(map);
+  const bindings = (range[0].bindings ||= []);
+  const vars = range[1];
+
+  const index = vars!.indexOf(variable);
+  const binding = getIndex(bindings, index);
+
+  if (typeof expression === 'string') binding[0] = [put(names, expression)];
+  else {
+    const { start } = expression;
+    binding.push([put(names, expression.expression), start.line - 1, start.column]);
+  }
+}
+*/
@@ -0,0 +1,82 @@
+type Key = string | number | symbol;
+
+/**
+ * SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
+ * index of the `key` in the backing array.
+ *
+ * This is designed to allow synchronizing a second array with the contents of the backing array,
+ * like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
+ * and there are never duplicates.
+ */
+export class SetArray<T extends Key = Key> {
+  declare private _indexes: Record<T, number | undefined>;
+  declare array: readonly T[];
+
+  constructor() {
+    this._indexes = { __proto__: null } as any;
+    this.array = [];
+  }
+}
+
+interface PublicSet<T extends Key> {
+  array: T[];
+  _indexes: SetArray<T>['_indexes'];
+}
+
+/**
+ * Typescript doesn't allow friend access to private fields, so this just casts the set into a type
+ * with public access modifiers.
+ */
+function cast<T extends Key>(set: SetArray<T>): PublicSet<T> {
+  return set as any;
+}
+
+/**
+ * Gets the index associated with `key` in the backing array, if it is already present.
+ */
+export function get<T extends Key>(setarr: SetArray<T>, key: T): number | undefined {
+  return cast(setarr)._indexes[key];
+}
+
+/**
+ * Puts `key` into the backing array, if it is not already present. Returns
+ * the index of the `key` in the backing array.
+ */
+export function put<T extends Key>(setarr: SetArray<T>, key: T): number {
+  // The key may or may not be present. If it is present, it's a number.
+  const index = get(setarr, key);
+  if (index !== undefined) return index;
+
+  const { array, _indexes: indexes } = cast(setarr);
+
+  const length = array.push(key);
+  return (indexes[key] = length - 1);
+}
+
+/**
+ * Pops the last added item out of the SetArray.
+ */
+export function pop<T extends Key>(setarr: SetArray<T>): void {
+  const { array, _indexes: indexes } = cast(setarr);
+  if (array.length === 0) return;
+
+  const last = array.pop()!;
+  indexes[last] = undefined;
+}
+
+/**
+ * Removes the key, if it exists in the set.
+ */
+export function remove<T extends Key>(setarr: SetArray<T>, key: T): void {
+  const index = get(setarr, key);
+  if (index === undefined) return;
+
+  const { array, _indexes: indexes } = cast(setarr);
+  for (let i = index + 1; i < array.length; i++) {
+    const k = array[i];
+    array[i - 1] = k;
+    indexes[k]!--;
+  }
+  indexes[key] = undefined;
+  array.pop();
+}
@@ -0,0 +1,16 @@
+type GeneratedColumn = number;
+type SourcesIndex = number;
+type SourceLine = number;
+type SourceColumn = number;
+type NamesIndex = number;
+
+export type SourceMapSegment =
+  | [GeneratedColumn]
+  | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn]
+  | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn, NamesIndex];
+
+export const COLUMN = 0;
+export const SOURCES_INDEX = 1;
+export const SOURCE_LINE = 2;
+export const SOURCE_COLUMN = 3;
+export const NAMES_INDEX = 4;
@@ -0,0 +1,61 @@
+// import type { GeneratedRange, OriginalScope } from '@jridgewell/sourcemap-codec';
+import type { SourceMapSegment } from './sourcemap-segment';
+
+export interface SourceMapV3 {
+  file?: string | null;
+  names: readonly string[];
+  sourceRoot?: string;
+  sources: readonly (string | null)[];
+  sourcesContent?: readonly (string | null)[];
+  version: 3;
+  ignoreList?: readonly number[];
+}
+
+export interface EncodedSourceMap extends SourceMapV3 {
+  mappings: string;
+  // originalScopes: string[];
+  // generatedRanges: string;
+}
+
+export interface DecodedSourceMap extends SourceMapV3 {
+  mappings: readonly SourceMapSegment[][];
+  // originalScopes: readonly OriginalScope[][];
+  // generatedRanges: readonly GeneratedRange[];
+}
+
+export interface Pos {
+  line: number; // 1-based
+  column: number; // 0-based
+}
+
+export interface OriginalPos extends Pos {
+  source: string;
+}
+
+export interface BindingExpressionRange {
+  start: Pos;
+  expression: string;
+}
+
+// export type OriginalScopeInfo = [number, number, string[] | undefined];
+// export type GeneratedRangeInfo = [GeneratedRange, string[] | undefined];
+
+export type Mapping =
+  | {
+      generated: Pos;
+      source: undefined;
+      original: undefined;
+      name: undefined;
+    }
+  | {
+      generated: Pos;
+      source: string;
+      original: Pos;
+      name: string;
+    }
+  | {
+      generated: Pos;
+      source: string;
+      original: Pos;
+      name: undefined;
+    };
@@ -0,0 +1,89 @@
+import type { SourceMapInput } from '@jridgewell/trace-mapping';
+import type { DecodedSourceMap, EncodedSourceMap, Pos, Mapping } from './types.cts';
+export type { DecodedSourceMap, EncodedSourceMap, Mapping };
+export type Options = {
+    file?: string | null;
+    sourceRoot?: string | null;
+};
+/**
+ * Provides the state to generate a sourcemap.
+ */
+export declare class GenMapping {
+    private _names;
+    private _sources;
+    private _sourcesContent;
+    private _mappings;
+    private _ignoreList;
+    file: string | null | undefined;
+    sourceRoot: string | null | undefined;
+    constructor({ file, sourceRoot }?: Options);
+}
+/**
+ * A low-level API to associate a generated position with an original source position. Line and
+ * column here are 0-based, unlike `addMapping`.
+ */
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source?: null, sourceLine?: null, sourceColumn?: null, name?: null, content?: null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name?: null, content?: string | null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name: string, content?: string | null): void;
+/**
+ * A high-level API to associate a generated position with an original source position. Line is
+ * 1-based, but column is 0-based, due to legacy behavior in `source-map` library.
+ */
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source?: null;
+    original?: null;
+    name?: null;
+    content?: null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name?: null;
+    content?: string | null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+    content?: string | null;
+}): void;
+/**
+ * Same as `addSegment`, but will only add the segment if it generates useful information in the
+ * resulting map. This only works correctly if segments are added **in order**, meaning you should
+ * not add a segment with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddSegment: typeof addSegment;
+/**
+ * Same as `addMapping`, but will only add the mapping if it generates useful information in the
+ * resulting map. This only works correctly if mappings are added **in order**, meaning you should
+ * not add a mapping with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddMapping: typeof addMapping;
+/**
+ * Adds/removes the content of the source file to the source map.
+ */
+export declare function setSourceContent(map: GenMapping, source: string, content: string | null): void;
+export declare function setIgnore(map: GenMapping, source: string, ignore?: boolean): void;
+/**
+ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toDecodedMap(map: GenMapping): DecodedSourceMap;
+/**
+ * Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toEncodedMap(map: GenMapping): EncodedSourceMap;
+/**
+ * Constructs a new GenMapping, using the already present mappings of the input.
+ */
+export declare function fromMap(input: SourceMapInput): GenMapping;
+/**
+ * Returns an array of high-level mapping objects for every recorded segment, which could then be
+ * passed to the `source-map` library.
+ */
+export declare function allMappings(map: GenMapping): Mapping[];
+//# sourceMappingURL=gen-mapping.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"gen-mapping.d.ts","sourceRoot":"","sources":["../src/gen-mapping.ts"],"names":[],"mappings":"AAgBA,OAAO,KAAK,EAAE,cAAc,EAAE,MAAM,2BAA2B,CAAC;AAGhE,OAAO,KAAK,EACV,gBAAgB,EAChB,gBAAgB,EAChB,GAAG,EACH,OAAO,EAKR,MAAM,SAAS,CAAC;AAEjB,YAAY,EAAE,gBAAgB,EAAE,gBAAgB,EAAE,OAAO,EAAE,CAAC;AAE5D,MAAM,MAAM,OAAO,GAAG;IACpB,IAAI,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;IACrB,UAAU,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CAC5B,CAAC;AAIF;;GAEG;AACH,qBAAa,UAAU;IACrB,QAAgB,MAAM,CAAmB;IACzC,QAAgB,QAAQ,CAAmB;IAC3C,QAAgB,eAAe,CAAoB;IACnD,QAAgB,SAAS,CAAuB;IAGhD,QAAgB,WAAW,CAAmB;IACtC,IAAI,EAAE,MAAM,GAAG,IAAI,GAAG,SAAS,CAAC;IAChC,UAAU,EAAE,MAAM,GAAG,IAAI,GAAG,SAAS,CAAC;gBAElC,EAAE,IAAI,EAAE,UAAU,EAAE,GAAE,OAAY;CAW/C;AAoBD;;;GAGG;AACH,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,CAAC,EAAE,IAAI,EACb,UAAU,CAAC,EAAE,IAAI,EACjB,YAAY,CAAC,EAAE,IAAI,EACnB,IAAI,CAAC,EAAE,IAAI,EACX,OAAO,CAAC,EAAE,IAAI,GACb,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,EAAE,MAAM,EACd,UAAU,EAAE,MAAM,EAClB,YAAY,EAAE,MAAM,EACpB,IAAI,CAAC,EAAE,IAAI,EACX,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,GACtB,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,EAAE,MAAM,EACd,UAAU,EAAE,MAAM,EAClB,YAAY,EAAE,MAAM,EACpB,IAAI,EAAE,MAAM,EACZ,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,GACtB,IAAI,CAAC;AAwBR;;;GAGG;AACH,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,CAAC,EAAE,IAAI,CAAC;IACd,QAAQ,CAAC,EAAE,IAAI,CAAC;IAChB,IAAI,CAAC,EAAE,IAAI,CAAC;IACZ,OAAO,CAAC,EAAE,IAAI,CAAC;CAChB,GACA,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,CAAC,EAAE,IAAI,CAAC;IACZ,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CACzB,GACA,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,EAAE,MAAM,CAAC;IACb,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CACzB,GACA,IAAI,CAAC;AAcR;;;;GAIG;AACH,eAAO,MAAM,eAAe,EAAE,OAAO,UAqBpC,CAAC;AAEF;;;;GAIG;AACH,eAAO,MAAM,eAAe,EAAE,OAAO,UAEpC,CAAC;AAEF;;GAEG;AACH,wBAAgB,gBAAgB,CAAC,GAAG,EAAE,UAAU,EAAE,MAAM,EAAE,MAAM,EAAE,OAAO,EAAE,MAAM,GAAG,IAAI,GAAG,IAAI,CAS9F;AAED,wBAAgB,SAAS,CAAC,GAAG,EAAE,UAAU,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,UAAO,QAYvE;AAED;;;GAGG;AACH,wBAAgB,YAAY,CAAC,GAAG,EAAE,UAAU,GAAG,gBAAgB,CAwB9D;AAED;;;GAGG;AACH,wBAAgB,YAAY,CAAC,GAAG,EAAE,UAAU,GAAG,gBAAgB,CAO9D;AAED;;GAEG;AACH,wBAAgB,OAAO,CAAC,KAAK,EAAE,cAAc,GAAG,UAAU,CAYzD;AAED;;;GAGG;AACH,wBAAgB,WAAW,CAAC,GAAG,EAAE,UAAU,GAAG,OAAO,EAAE,CA0BtD"}
@@ -0,0 +1,89 @@
+import type { SourceMapInput } from '@jridgewell/trace-mapping';
+import type { DecodedSourceMap, EncodedSourceMap, Pos, Mapping } from './types.mts';
+export type { DecodedSourceMap, EncodedSourceMap, Mapping };
+export type Options = {
+    file?: string | null;
+    sourceRoot?: string | null;
+};
+/**
+ * Provides the state to generate a sourcemap.
+ */
+export declare class GenMapping {
+    private _names;
+    private _sources;
+    private _sourcesContent;
+    private _mappings;
+    private _ignoreList;
+    file: string | null | undefined;
+    sourceRoot: string | null | undefined;
+    constructor({ file, sourceRoot }?: Options);
+}
+/**
+ * A low-level API to associate a generated position with an original source position. Line and
+ * column here are 0-based, unlike `addMapping`.
+ */
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source?: null, sourceLine?: null, sourceColumn?: null, name?: null, content?: null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name?: null, content?: string | null): void;
+export declare function addSegment(map: GenMapping, genLine: number, genColumn: number, source: string, sourceLine: number, sourceColumn: number, name: string, content?: string | null): void;
+/**
+ * A high-level API to associate a generated position with an original source position. Line is
+ * 1-based, but column is 0-based, due to legacy behavior in `source-map` library.
+ */
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source?: null;
+    original?: null;
+    name?: null;
+    content?: null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name?: null;
+    content?: string | null;
+}): void;
+export declare function addMapping(map: GenMapping, mapping: {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+    content?: string | null;
+}): void;
+/**
+ * Same as `addSegment`, but will only add the segment if it generates useful information in the
+ * resulting map. This only works correctly if segments are added **in order**, meaning you should
+ * not add a segment with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddSegment: typeof addSegment;
+/**
+ * Same as `addMapping`, but will only add the mapping if it generates useful information in the
+ * resulting map. This only works correctly if mappings are added **in order**, meaning you should
+ * not add a mapping with a lower generated line/column than one that came before.
+ */
+export declare const maybeAddMapping: typeof addMapping;
+/**
+ * Adds/removes the content of the source file to the source map.
+ */
+export declare function setSourceContent(map: GenMapping, source: string, content: string | null): void;
+export declare function setIgnore(map: GenMapping, source: string, ignore?: boolean): void;
+/**
+ * Returns a sourcemap object (with decoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toDecodedMap(map: GenMapping): DecodedSourceMap;
+/**
+ * Returns a sourcemap object (with encoded mappings) suitable for passing to a library that expects
+ * a sourcemap, or to JSON.stringify.
+ */
+export declare function toEncodedMap(map: GenMapping): EncodedSourceMap;
+/**
+ * Constructs a new GenMapping, using the already present mappings of the input.
+ */
+export declare function fromMap(input: SourceMapInput): GenMapping;
+/**
+ * Returns an array of high-level mapping objects for every recorded segment, which could then be
+ * passed to the `source-map` library.
+ */
+export declare function allMappings(map: GenMapping): Mapping[];
+//# sourceMappingURL=gen-mapping.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"gen-mapping.d.ts","sourceRoot":"","sources":["../src/gen-mapping.ts"],"names":[],"mappings":"AAgBA,OAAO,KAAK,EAAE,cAAc,EAAE,MAAM,2BAA2B,CAAC;AAGhE,OAAO,KAAK,EACV,gBAAgB,EAChB,gBAAgB,EAChB,GAAG,EACH,OAAO,EAKR,MAAM,SAAS,CAAC;AAEjB,YAAY,EAAE,gBAAgB,EAAE,gBAAgB,EAAE,OAAO,EAAE,CAAC;AAE5D,MAAM,MAAM,OAAO,GAAG;IACpB,IAAI,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;IACrB,UAAU,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CAC5B,CAAC;AAIF;;GAEG;AACH,qBAAa,UAAU;IACrB,QAAgB,MAAM,CAAmB;IACzC,QAAgB,QAAQ,CAAmB;IAC3C,QAAgB,eAAe,CAAoB;IACnD,QAAgB,SAAS,CAAuB;IAGhD,QAAgB,WAAW,CAAmB;IACtC,IAAI,EAAE,MAAM,GAAG,IAAI,GAAG,SAAS,CAAC;IAChC,UAAU,EAAE,MAAM,GAAG,IAAI,GAAG,SAAS,CAAC;gBAElC,EAAE,IAAI,EAAE,UAAU,EAAE,GAAE,OAAY;CAW/C;AAoBD;;;GAGG;AACH,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,CAAC,EAAE,IAAI,EACb,UAAU,CAAC,EAAE,IAAI,EACjB,YAAY,CAAC,EAAE,IAAI,EACnB,IAAI,CAAC,EAAE,IAAI,EACX,OAAO,CAAC,EAAE,IAAI,GACb,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,EAAE,MAAM,EACd,UAAU,EAAE,MAAM,EAClB,YAAY,EAAE,MAAM,EACpB,IAAI,CAAC,EAAE,IAAI,EACX,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,GACtB,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE,MAAM,EACf,SAAS,EAAE,MAAM,EACjB,MAAM,EAAE,MAAM,EACd,UAAU,EAAE,MAAM,EAClB,YAAY,EAAE,MAAM,EACpB,IAAI,EAAE,MAAM,EACZ,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,GACtB,IAAI,CAAC;AAwBR;;;GAGG;AACH,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,CAAC,EAAE,IAAI,CAAC;IACd,QAAQ,CAAC,EAAE,IAAI,CAAC;IAChB,IAAI,CAAC,EAAE,IAAI,CAAC;IACZ,OAAO,CAAC,EAAE,IAAI,CAAC;CAChB,GACA,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,CAAC,EAAE,IAAI,CAAC;IACZ,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CACzB,GACA,IAAI,CAAC;AACR,wBAAgB,UAAU,CACxB,GAAG,EAAE,UAAU,EACf,OAAO,EAAE;IACP,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,EAAE,MAAM,CAAC;IACb,OAAO,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;CACzB,GACA,IAAI,CAAC;AAcR;;;;GAIG;AACH,eAAO,MAAM,eAAe,EAAE,OAAO,UAqBpC,CAAC;AAEF;;;;GAIG;AACH,eAAO,MAAM,eAAe,EAAE,OAAO,UAEpC,CAAC;AAEF;;GAEG;AACH,wBAAgB,gBAAgB,CAAC,GAAG,EAAE,UAAU,EAAE,MAAM,EAAE,MAAM,EAAE,OAAO,EAAE,MAAM,GAAG,IAAI,GAAG,IAAI,CAS9F;AAED,wBAAgB,SAAS,CAAC,GAAG,EAAE,UAAU,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,UAAO,QAYvE;AAED;;;GAGG;AACH,wBAAgB,YAAY,CAAC,GAAG,EAAE,UAAU,GAAG,gBAAgB,CAwB9D;AAED;;;GAGG;AACH,wBAAgB,YAAY,CAAC,GAAG,EAAE,UAAU,GAAG,gBAAgB,CAO9D;AAED;;GAEG;AACH,wBAAgB,OAAO,CAAC,KAAK,EAAE,cAAc,GAAG,UAAU,CAYzD;AAED;;;GAGG;AACH,wBAAgB,WAAW,CAAC,GAAG,EAAE,UAAU,GAAG,OAAO,EAAE,CA0BtD"}
@@ -0,0 +1,33 @@
+type Key = string | number | symbol;
+/**
+ * SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
+ * index of the `key` in the backing array.
+ *
+ * This is designed to allow synchronizing a second array with the contents of the backing array,
+ * like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
+ * and there are never duplicates.
+ */
+export declare class SetArray<T extends Key = Key> {
+    private _indexes;
+    array: readonly T[];
+    constructor();
+}
+/**
+ * Gets the index associated with `key` in the backing array, if it is already present.
+ */
+export declare function get<T extends Key>(setarr: SetArray<T>, key: T): number | undefined;
+/**
+ * Puts `key` into the backing array, if it is not already present. Returns
+ * the index of the `key` in the backing array.
+ */
+export declare function put<T extends Key>(setarr: SetArray<T>, key: T): number;
+/**
+ * Pops the last added item out of the SetArray.
+ */
+export declare function pop<T extends Key>(setarr: SetArray<T>): void;
+/**
+ * Removes the key, if it exists in the set.
+ */
+export declare function remove<T extends Key>(setarr: SetArray<T>, key: T): void;
+export {};
+//# sourceMappingURL=set-array.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"set-array.d.ts","sourceRoot":"","sources":["../src/set-array.ts"],"names":[],"mappings":"AAAA,KAAK,GAAG,GAAG,MAAM,GAAG,MAAM,GAAG,MAAM,CAAC;AAEpC;;;;;;;GAOG;AACH,qBAAa,QAAQ,CAAC,CAAC,SAAS,GAAG,GAAG,GAAG;IACvC,QAAgB,QAAQ,CAAgC;IAChD,KAAK,EAAE,SAAS,CAAC,EAAE,CAAC;;CAM7B;AAeD;;GAEG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,MAAM,GAAG,SAAS,CAElF;AAED;;;GAGG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,MAAM,CAStE;AAED;;GAEG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,GAAG,IAAI,CAM5D;AAED;;GAEG;AACH,wBAAgB,MAAM,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,IAAI,CAYvE"}
@@ -0,0 +1,33 @@
+type Key = string | number | symbol;
+/**
+ * SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
+ * index of the `key` in the backing array.
+ *
+ * This is designed to allow synchronizing a second array with the contents of the backing array,
+ * like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
+ * and there are never duplicates.
+ */
+export declare class SetArray<T extends Key = Key> {
+    private _indexes;
+    array: readonly T[];
+    constructor();
+}
+/**
+ * Gets the index associated with `key` in the backing array, if it is already present.
+ */
+export declare function get<T extends Key>(setarr: SetArray<T>, key: T): number | undefined;
+/**
+ * Puts `key` into the backing array, if it is not already present. Returns
+ * the index of the `key` in the backing array.
+ */
+export declare function put<T extends Key>(setarr: SetArray<T>, key: T): number;
+/**
+ * Pops the last added item out of the SetArray.
+ */
+export declare function pop<T extends Key>(setarr: SetArray<T>): void;
+/**
+ * Removes the key, if it exists in the set.
+ */
+export declare function remove<T extends Key>(setarr: SetArray<T>, key: T): void;
+export {};
+//# sourceMappingURL=set-array.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"set-array.d.ts","sourceRoot":"","sources":["../src/set-array.ts"],"names":[],"mappings":"AAAA,KAAK,GAAG,GAAG,MAAM,GAAG,MAAM,GAAG,MAAM,CAAC;AAEpC;;;;;;;GAOG;AACH,qBAAa,QAAQ,CAAC,CAAC,SAAS,GAAG,GAAG,GAAG;IACvC,QAAgB,QAAQ,CAAgC;IAChD,KAAK,EAAE,SAAS,CAAC,EAAE,CAAC;;CAM7B;AAeD;;GAEG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,MAAM,GAAG,SAAS,CAElF;AAED;;;GAGG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,MAAM,CAStE;AAED;;GAEG;AACH,wBAAgB,GAAG,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,GAAG,IAAI,CAM5D;AAED;;GAEG;AACH,wBAAgB,MAAM,CAAC,CAAC,SAAS,GAAG,EAAE,MAAM,EAAE,QAAQ,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,IAAI,CAYvE"}
@@ -0,0 +1,13 @@
+type GeneratedColumn = number;
+type SourcesIndex = number;
+type SourceLine = number;
+type SourceColumn = number;
+type NamesIndex = number;
+export type SourceMapSegment = [GeneratedColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn, NamesIndex];
+export declare const COLUMN = 0;
+export declare const SOURCES_INDEX = 1;
+export declare const SOURCE_LINE = 2;
+export declare const SOURCE_COLUMN = 3;
+export declare const NAMES_INDEX = 4;
+export {};
+//# sourceMappingURL=sourcemap-segment.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"sourcemap-segment.d.ts","sourceRoot":"","sources":["../src/sourcemap-segment.ts"],"names":[],"mappings":"AAAA,KAAK,eAAe,GAAG,MAAM,CAAC;AAC9B,KAAK,YAAY,GAAG,MAAM,CAAC;AAC3B,KAAK,UAAU,GAAG,MAAM,CAAC;AACzB,KAAK,YAAY,GAAG,MAAM,CAAC;AAC3B,KAAK,UAAU,GAAG,MAAM,CAAC;AAEzB,MAAM,MAAM,gBAAgB,GACxB,CAAC,eAAe,CAAC,GACjB,CAAC,eAAe,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,CAAC,GACzD,CAAC,eAAe,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,EAAE,UAAU,CAAC,CAAC;AAE1E,eAAO,MAAM,MAAM,IAAI,CAAC;AACxB,eAAO,MAAM,aAAa,IAAI,CAAC;AAC/B,eAAO,MAAM,WAAW,IAAI,CAAC;AAC7B,eAAO,MAAM,aAAa,IAAI,CAAC;AAC/B,eAAO,MAAM,WAAW,IAAI,CAAC"}
@@ -0,0 +1,13 @@
+type GeneratedColumn = number;
+type SourcesIndex = number;
+type SourceLine = number;
+type SourceColumn = number;
+type NamesIndex = number;
+export type SourceMapSegment = [GeneratedColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn] | [GeneratedColumn, SourcesIndex, SourceLine, SourceColumn, NamesIndex];
+export declare const COLUMN = 0;
+export declare const SOURCES_INDEX = 1;
+export declare const SOURCE_LINE = 2;
+export declare const SOURCE_COLUMN = 3;
+export declare const NAMES_INDEX = 4;
+export {};
+//# sourceMappingURL=sourcemap-segment.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"sourcemap-segment.d.ts","sourceRoot":"","sources":["../src/sourcemap-segment.ts"],"names":[],"mappings":"AAAA,KAAK,eAAe,GAAG,MAAM,CAAC;AAC9B,KAAK,YAAY,GAAG,MAAM,CAAC;AAC3B,KAAK,UAAU,GAAG,MAAM,CAAC;AACzB,KAAK,YAAY,GAAG,MAAM,CAAC;AAC3B,KAAK,UAAU,GAAG,MAAM,CAAC;AAEzB,MAAM,MAAM,gBAAgB,GACxB,CAAC,eAAe,CAAC,GACjB,CAAC,eAAe,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,CAAC,GACzD,CAAC,eAAe,EAAE,YAAY,EAAE,UAAU,EAAE,YAAY,EAAE,UAAU,CAAC,CAAC;AAE1E,eAAO,MAAM,MAAM,IAAI,CAAC;AACxB,eAAO,MAAM,aAAa,IAAI,CAAC;AAC/B,eAAO,MAAM,WAAW,IAAI,CAAC;AAC7B,eAAO,MAAM,aAAa,IAAI,CAAC;AAC/B,eAAO,MAAM,WAAW,IAAI,CAAC"}
@@ -0,0 +1,44 @@
+import type { SourceMapSegment } from './sourcemap-segment.cts';
+export interface SourceMapV3 {
+    file?: string | null;
+    names: readonly string[];
+    sourceRoot?: string;
+    sources: readonly (string | null)[];
+    sourcesContent?: readonly (string | null)[];
+    version: 3;
+    ignoreList?: readonly number[];
+}
+export interface EncodedSourceMap extends SourceMapV3 {
+    mappings: string;
+}
+export interface DecodedSourceMap extends SourceMapV3 {
+    mappings: readonly SourceMapSegment[][];
+}
+export interface Pos {
+    line: number;
+    column: number;
+}
+export interface OriginalPos extends Pos {
+    source: string;
+}
+export interface BindingExpressionRange {
+    start: Pos;
+    expression: string;
+}
+export type Mapping = {
+    generated: Pos;
+    source: undefined;
+    original: undefined;
+    name: undefined;
+} | {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: string;
+} | {
+    generated: Pos;
+    source: string;
+    original: Pos;
+    name: undefined;
+};
+//# sourceMappingURL=types.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"types.d.ts","sourceRoot":"","sources":["../src/types.ts"],"names":[],"mappings":"AACA,OAAO,KAAK,EAAE,gBAAgB,EAAE,MAAM,qBAAqB,CAAC;AAE5D,MAAM,WAAW,WAAW;IAC1B,IAAI,CAAC,EAAE,MAAM,GAAG,IAAI,CAAC;IACrB,KAAK,EAAE,SAAS,MAAM,EAAE,CAAC;IACzB,UAAU,CAAC,EAAE,MAAM,CAAC;IACpB,OAAO,EAAE,SAAS,CAAC,MAAM,GAAG,IAAI,CAAC,EAAE,CAAC;IACpC,cAAc,CAAC,EAAE,SAAS,CAAC,MAAM,GAAG,IAAI,CAAC,EAAE,CAAC;IAC5C,OAAO,EAAE,CAAC,CAAC;IACX,UAAU,CAAC,EAAE,SAAS,MAAM,EAAE,CAAC;CAChC;AAED,MAAM,WAAW,gBAAiB,SAAQ,WAAW;IACnD,QAAQ,EAAE,MAAM,CAAC;CAGlB;AAED,MAAM,WAAW,gBAAiB,SAAQ,WAAW;IACnD,QAAQ,EAAE,SAAS,gBAAgB,EAAE,EAAE,CAAC;CAGzC;AAED,MAAM,WAAW,GAAG;IAClB,IAAI,EAAE,MAAM,CAAC;IACb,MAAM,EAAE,MAAM,CAAC;CAChB;AAED,MAAM,WAAW,WAAY,SAAQ,GAAG;IACtC,MAAM,EAAE,MAAM,CAAC;CAChB;AAED,MAAM,WAAW,sBAAsB;IACrC,KAAK,EAAE,GAAG,CAAC;IACX,UAAU,EAAE,MAAM,CAAC;CACpB;AAKD,MAAM,MAAM,OAAO,GACf;IACE,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,SAAS,CAAC;IAClB,QAAQ,EAAE,SAAS,CAAC;IACpB,IAAI,EAAE,SAAS,CAAC;CACjB,GACD;IACE,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,EAAE,MAAM,CAAC;CACd,GACD;IACE,SAAS,EAAE,GAAG,CAAC;IACf,MAAM,EAAE,MAAM,CAAC;IACf,QAAQ,EAAE,GAAG,CAAC;IACd,IAAI,EAAE,SAAS,CAAC;CACjB,CAAC"}
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`See [https://github.com/toyobayashi/emnapi](https://github.com/toyobayashi/emnapi)`
				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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