libxslt-wasm/dist/output/libxslt.js

JavaScript bindings for libxslt compiled to WebAssembly

var LibxsltModule = (() => {
  
  return (
async function(moduleArg = {}) {
  var moduleRtn;

// include: shell.js
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(moduleArg) => Promise<Module>
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define   var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = moduleArg;

// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;

var readyPromise = new Promise((resolve, reject) => {
  readyPromiseResolve = resolve;
  readyPromiseReject = reject;
});

// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == "object";

var ENVIRONMENT_IS_WORKER = typeof WorkerGlobalScope != "undefined";

// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == "object" && typeof process.versions == "object" && typeof process.versions.node == "string" && process.type != "renderer";

var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -sPROXY_TO_WORKER) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
// The way we signal to a worker that it is hosting a pthread is to construct
// it with a specific name.
var ENVIRONMENT_IS_PTHREAD = ENVIRONMENT_IS_WORKER && self.name?.startsWith("em-pthread");

if (ENVIRONMENT_IS_PTHREAD) {
  assert(!globalThis.moduleLoaded, "module should only be loaded once on each pthread worker");
  globalThis.moduleLoaded = true;
}

if (ENVIRONMENT_IS_NODE) {
  // When building an ES module `require` is not normally available.
  // We need to use `createRequire()` to construct the require()` function.
  const {createRequire} = await import("module");
  /** @suppress{duplicate} */ var require = createRequire(import.meta.url);
  var worker_threads = require("worker_threads");
  global.Worker = worker_threads.Worker;
  ENVIRONMENT_IS_WORKER = !worker_threads.isMainThread;
  // Under node we set `workerData` to `em-pthread` to signal that the worker
  // is hosting a pthread.
  ENVIRONMENT_IS_PTHREAD = ENVIRONMENT_IS_WORKER && worker_threads["workerData"] == "em-pthread";
}

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
var arguments_ = [];

var thisProgram = "./this.program";

var quit_ = (status, toThrow) => {
  throw toThrow;
};

var _scriptName = import.meta.url;

// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = "";

function locateFile(path) {
  if (Module["locateFile"]) {
    return Module["locateFile"](path, scriptDirectory);
  }
  return scriptDirectory + path;
}

// Hooks that are implemented differently in different runtime environments.
var readAsync, readBinary;

if (ENVIRONMENT_IS_NODE) {
  if (typeof process == "undefined" || !process.release || process.release.name !== "node") throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
  var nodeVersion = process.versions.node;
  var numericVersion = nodeVersion.split(".").slice(0, 3);
  numericVersion = (numericVersion[0] * 1e4) + (numericVersion[1] * 100) + (numericVersion[2].split("-")[0] * 1);
  var minVersion = 190200;
  if (numericVersion < 190200) {
    throw new Error("This emscripten-generated code requires node v19.02.2.0 (detected v" + nodeVersion + ")");
  }
  // These modules will usually be used on Node.js. Load them eagerly to avoid
  // the complexity of lazy-loading.
  var fs = require("fs");
  var nodePath = require("path");
  if (_scriptName.startsWith("file:")) {
    scriptDirectory = nodePath.dirname(require("url").fileURLToPath(_scriptName)) + "/";
  }
  // include: node_shell_read.js
  readBinary = filename => {
    // We need to re-wrap `file://` strings to URLs.
    filename = isFileURI(filename) ? new URL(filename) : filename;
    var ret = fs.readFileSync(filename);
    assert(Buffer.isBuffer(ret));
    return ret;
  };
  readAsync = async (filename, binary = true) => {
    // See the comment in the `readBinary` function.
    filename = isFileURI(filename) ? new URL(filename) : filename;
    var ret = fs.readFileSync(filename, binary ? undefined : "utf8");
    assert(binary ? Buffer.isBuffer(ret) : typeof ret == "string");
    return ret;
  };
  // end include: node_shell_read.js
  if (process.argv.length > 1) {
    thisProgram = process.argv[1].replace(/\\/g, "/");
  }
  arguments_ = process.argv.slice(2);
  quit_ = (status, toThrow) => {
    process.exitCode = status;
    throw toThrow;
  };
} else if (ENVIRONMENT_IS_SHELL) {
  if ((typeof process == "object" && typeof require === "function") || typeof window == "object" || typeof WorkerGlobalScope != "undefined") throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
} else // Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  try {
    scriptDirectory = new URL(".", _scriptName).href;
  } catch {}
  if (!(typeof window == "object" || typeof WorkerGlobalScope != "undefined")) throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
  // Differentiate the Web Worker from the Node Worker case, as reading must
  // be done differently.
  if (!ENVIRONMENT_IS_NODE) {
    // include: web_or_worker_shell_read.js
    if (ENVIRONMENT_IS_WORKER) {
      readBinary = url => {
        var xhr = new XMLHttpRequest;
        xhr.open("GET", url, false);
        xhr.responseType = "arraybuffer";
        xhr.send(null);
        return new Uint8Array(/** @type{!ArrayBuffer} */ (xhr.response));
      };
    }
    readAsync = async url => {
      // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
      // See https://github.com/github/fetch/pull/92#issuecomment-140665932
      // Cordova or Electron apps are typically loaded from a file:// url.
      // So use XHR on webview if URL is a file URL.
      if (isFileURI(url)) {
        return new Promise((resolve, reject) => {
          var xhr = new XMLHttpRequest;
          xhr.open("GET", url, true);
          xhr.responseType = "arraybuffer";
          xhr.onload = () => {
            if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) {
              // file URLs can return 0
              resolve(xhr.response);
              return;
            }
            reject(xhr.status);
          };
          xhr.onerror = reject;
          xhr.send(null);
        });
      }
      var response = await fetch(url, {
        credentials: "same-origin"
      });
      if (response.ok) {
        return response.arrayBuffer();
      }
      throw new Error(response.status + " : " + response.url);
    };
  }
} else {
  throw new Error("environment detection error");
}

// Set up the out() and err() hooks, which are how we can print to stdout or
// stderr, respectively.
// Normally just binding console.log/console.error here works fine, but
// under node (with workers) we see missing/out-of-order messages so route
// directly to stdout and stderr.
// See https://github.com/emscripten-core/emscripten/issues/14804
var defaultPrint = console.log.bind(console);

var defaultPrintErr = console.error.bind(console);

if (ENVIRONMENT_IS_NODE) {
  var utils = require("util");
  var stringify = a => typeof a == "object" ? utils.inspect(a) : a;
  defaultPrint = (...args) => fs.writeSync(1, args.map(stringify).join(" ") + "\n");
  defaultPrintErr = (...args) => fs.writeSync(2, args.map(stringify).join(" ") + "\n");
}

var out = defaultPrint;

var err = defaultPrintErr;

var IDBFS = "IDBFS is no longer included by default; build with -lidbfs.js";

var PROXYFS = "PROXYFS is no longer included by default; build with -lproxyfs.js";

var WORKERFS = "WORKERFS is no longer included by default; build with -lworkerfs.js";

var FETCHFS = "FETCHFS is no longer included by default; build with -lfetchfs.js";

var ICASEFS = "ICASEFS is no longer included by default; build with -licasefs.js";

var JSFILEFS = "JSFILEFS is no longer included by default; build with -ljsfilefs.js";

var OPFS = "OPFS is no longer included by default; build with -lopfs.js";

var NODEFS = "NODEFS is no longer included by default; build with -lnodefs.js";

// perform assertions in shell.js after we set up out() and err(), as otherwise
// if an assertion fails it cannot print the message
assert(ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER || ENVIRONMENT_IS_NODE, "Pthreads do not work in this environment yet (need Web Workers, or an alternative to them)");

assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time.  Add `shell` to `-sENVIRONMENT` to enable.");

// end include: shell.js
// include: preamble.js
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
//    site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
//    site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
//    is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
var wasmBinary;

if (typeof WebAssembly != "object") {
  err("no native wasm support detected");
}

// Wasm globals
var wasmMemory;

// For sending to workers.
var wasmModule;

//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;

// set by exit() and abort().  Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;

// In STRICT mode, we only define assert() when ASSERTIONS is set.  i.e. we
// don't define it at all in release modes.  This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @type {function(*, string=)} */ function assert(condition, text) {
  if (!condition) {
    abort("Assertion failed" + (text ? ": " + text : ""));
  }
}

// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.
// Memory management
var HEAP, /** @type {!Int8Array} */ HEAP8, /** @type {!Uint8Array} */ HEAPU8, /** @type {!Int16Array} */ HEAP16, /** @type {!Uint16Array} */ HEAPU16, /** @type {!Int32Array} */ HEAP32, /** @type {!Uint32Array} */ HEAPU32, /** @type {!Float32Array} */ HEAPF32, /* BigInt64Array type is not correctly defined in closure
/** not-@type {!BigInt64Array} */ HEAP64, /* BigUint64Array type is not correctly defined in closure
/** not-t@type {!BigUint64Array} */ HEAPU64, /** @type {!Float64Array} */ HEAPF64;

var runtimeInitialized = false;

/**
 * Indicates whether filename is delivered via file protocol (as opposed to http/https)
 * @noinline
 */ var isFileURI = filename => filename.startsWith("file://");

// include: runtime_shared.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
  var max = _emscripten_stack_get_end();
  assert((max & 3) == 0);
  // If the stack ends at address zero we write our cookies 4 bytes into the
  // stack.  This prevents interference with SAFE_HEAP and ASAN which also
  // monitor writes to address zero.
  if (max == 0) {
    max += 4;
  }
  // The stack grow downwards towards _emscripten_stack_get_end.
  // We write cookies to the final two words in the stack and detect if they are
  // ever overwritten.
  GROWABLE_HEAP_U32()[((max) >> 2)] = 34821223;
  GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)] = 2310721022;
  // Also test the global address 0 for integrity.
  GROWABLE_HEAP_U32()[((0) >> 2)] = 1668509029;
}

function checkStackCookie() {
  if (ABORT) return;
  var max = _emscripten_stack_get_end();
  // See writeStackCookie().
  if (max == 0) {
    max += 4;
  }
  var cookie1 = GROWABLE_HEAP_U32()[((max) >> 2)];
  var cookie2 = GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)];
  if (cookie1 != 34821223 || cookie2 != 2310721022) {
    abort(`Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`);
  }
  // Also test the global address 0 for integrity.
  if (GROWABLE_HEAP_U32()[((0) >> 2)] != 1668509029) {
    abort("Runtime error: The application has corrupted its heap memory area (address zero)!");
  }
}

// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
// include: runtime_debug.js
var runtimeDebug = true;

// Switch to false at runtime to disable logging at the right times
// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
  if (!runtimeDebug && typeof runtimeDebug != "undefined") return;
  // Avoid using the console for debugging in multi-threaded node applications
  // See https://github.com/emscripten-core/emscripten/issues/14804
  if (ENVIRONMENT_IS_NODE) {
    // TODO(sbc): Unify with err/out implementation in shell.sh.
    var fs = require("fs");
    var utils = require("util");
    var stringify = a => typeof a == "object" ? utils.inspect(a) : a;
    fs.writeSync(1, args.map(stringify).join(" ") + "\n");
  } else // TODO(sbc): Make this configurable somehow.  Its not always convenient for
  // logging to show up as warnings.
  console.warn(...args);
}

// Endianness check
(() => {
  var h16 = new Int16Array(1);
  var h8 = new Int8Array(h16.buffer);
  h16[0] = 25459;
  if (h8[0] !== 115 || h8[1] !== 99) throw "Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)";
})();

function consumedModuleProp(prop) {
  if (!Object.getOwnPropertyDescriptor(Module, prop)) {
    Object.defineProperty(Module, prop, {
      configurable: true,
      set() {
        abort(`Attempt to set \`Module.${prop}\` after it has already been processed.  This can happen, for example, when code is injected via '--post-js' rather than '--pre-js'`);
      }
    });
  }
}

function ignoredModuleProp(prop) {
  if (Object.getOwnPropertyDescriptor(Module, prop)) {
    abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`);
  }
}

// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
  return name === "FS_createPath" || name === "FS_createDataFile" || name === "FS_createPreloadedFile" || name === "FS_unlink" || name === "addRunDependency" || // The old FS has some functionality that WasmFS lacks.
  name === "FS_createLazyFile" || name === "FS_createDevice" || name === "removeRunDependency";
}

/**
 * Intercept access to a global symbol.  This enables us to give informative
 * warnings/errors when folks attempt to use symbols they did not include in
 * their build, or no symbols that no longer exist.
 */ function hookGlobalSymbolAccess(sym, func) {
  if (typeof globalThis != "undefined" && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
    Object.defineProperty(globalThis, sym, {
      configurable: true,
      get() {
        func();
        return undefined;
      }
    });
  }
}

function missingGlobal(sym, msg) {
  hookGlobalSymbolAccess(sym, () => {
    warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`);
  });
}

missingGlobal("buffer", "Please use HEAP8.buffer or wasmMemory.buffer");

missingGlobal("asm", "Please use wasmExports instead");

function missingLibrarySymbol(sym) {
  hookGlobalSymbolAccess(sym, () => {
    // Can't `abort()` here because it would break code that does runtime
    // checks.  e.g. `if (typeof SDL === 'undefined')`.
    var msg = `\`${sym}\` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line`;
    // DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in
    // library.js, which means $name for a JS name with no prefix, or name
    // for a JS name like _name.
    var librarySymbol = sym;
    if (!librarySymbol.startsWith("_")) {
      librarySymbol = "$" + sym;
    }
    msg += ` (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE='${librarySymbol}')`;
    if (isExportedByForceFilesystem(sym)) {
      msg += ". Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you";
    }
    warnOnce(msg);
  });
  // Any symbol that is not included from the JS library is also (by definition)
  // not exported on the Module object.
  unexportedRuntimeSymbol(sym);
}

function unexportedRuntimeSymbol(sym) {
  if (ENVIRONMENT_IS_PTHREAD) {
    return;
  }
  if (!Object.getOwnPropertyDescriptor(Module, sym)) {
    Object.defineProperty(Module, sym, {
      configurable: true,
      get() {
        var msg = `'${sym}' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)`;
        if (isExportedByForceFilesystem(sym)) {
          msg += ". Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you";
        }
        abort(msg);
      }
    });
  }
}

/**
 * Override `err`/`out`/`dbg` to report thread / worker information
 */ function initWorkerLogging() {
  function getLogPrefix() {
    var t = 0;
    if (runtimeInitialized && typeof _pthread_self != "undefined") {
      t = _pthread_self();
    }
    return `w:${workerID},t:${ptrToString(t)}:`;
  }
  // Prefix all dbg() messages with the calling thread info.
  var origDbg = dbg;
  dbg = (...args) => origDbg(getLogPrefix(), ...args);
}

initWorkerLogging();

// end include: runtime_debug.js
// include: memoryprofiler.js
// end include: memoryprofiler.js
// include: growableHeap.js
// Support for growable heap + pthreads, where the buffer may change, so JS views
// must be updated.
function GROWABLE_HEAP_I8() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP8;
}

function GROWABLE_HEAP_U8() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU8;
}

function GROWABLE_HEAP_I16() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP16;
}

function GROWABLE_HEAP_U16() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU16;
}

function GROWABLE_HEAP_I32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAP32;
}

function GROWABLE_HEAP_U32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPU32;
}

function GROWABLE_HEAP_F32() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPF32;
}

function GROWABLE_HEAP_F64() {
  if (wasmMemory.buffer != HEAP8.buffer) {
    updateMemoryViews();
  }
  return HEAPF64;
}

// end include: growableHeap.js
var wasmModuleReceived;

if (ENVIRONMENT_IS_NODE && (ENVIRONMENT_IS_PTHREAD)) {
  // Create as web-worker-like an environment as we can.
  var parentPort = worker_threads["parentPort"];
  parentPort.on("message", msg => global.onmessage?.({
    data: msg
  }));
  Object.assign(globalThis, {
    self: global,
    postMessage: msg => parentPort["postMessage"](msg)
  });
}

// include: runtime_pthread.js
// Pthread Web Worker handling code.
// This code runs only on pthread web workers and handles pthread setup
// and communication with the main thread via postMessage.
// Unique ID of the current pthread worker (zero on non-pthread-workers
// including the main thread).
var workerID = 0;

if (ENVIRONMENT_IS_PTHREAD) {
  // Thread-local guard variable for one-time init of the JS state
  var initializedJS = false;
  // Turn unhandled rejected promises into errors so that the main thread will be
  // notified about them.
  self.onunhandledrejection = e => {
    throw e.reason || e;
  };
  async function handleMessage(e) {
    try {
      var msgData = e["data"];
      //dbg('msgData: ' + Object.keys(msgData));
      var cmd = msgData.cmd;
      if (cmd === "load") {
        // Preload command that is called once per worker to parse and load the Emscripten code.
        workerID = msgData.workerID;
        // Until we initialize the runtime, queue up any further incoming messages.
        let messageQueue = [];
        self.onmessage = e => messageQueue.push(e);
        // And add a callback for when the runtime is initialized.
        self.startWorker = instance => {
          // Notify the main thread that this thread has loaded.
          postMessage({
            cmd: "loaded"
          });
          // Process any messages that were queued before the thread was ready.
          for (let msg of messageQueue) {
            handleMessage(msg);
          }
          // Restore the real message handler.
          self.onmessage = handleMessage;
        };
        // Use `const` here to ensure that the variable is scoped only to
        // that iteration, allowing safe reference from a closure.
        for (const handler of msgData.handlers) {
          // The the main module has a handler for a certain even, but no
          // handler exists on the pthread worker, then proxy that handler
          // back to the main thread.
          if (!Module[handler] || Module[handler].proxy) {
            Module[handler] = (...args) => {
              postMessage({
                cmd: "callHandler",
                handler,
                args
              });
            };
            // Rebind the out / err handlers if needed
            if (handler == "print") out = Module[handler];
            if (handler == "printErr") err = Module[handler];
          }
        }
        wasmMemory = msgData.wasmMemory;
        updateMemoryViews();
        wasmModuleReceived(msgData.wasmModule);
      } else if (cmd === "run") {
        assert(msgData.pthread_ptr);
        // Call inside JS module to set up the stack frame for this pthread in JS module scope.
        // This needs to be the first thing that we do, as we cannot call to any C/C++ functions
        // until the thread stack is initialized.
        establishStackSpace(msgData.pthread_ptr);
        // Pass the thread address to wasm to store it for fast access.
        __emscripten_thread_init(msgData.pthread_ptr, /*is_main=*/ 0, /*is_runtime=*/ 0, /*can_block=*/ 1, 0, 0);
        PThread.threadInitTLS();
        // Await mailbox notifications with `Atomics.waitAsync` so we can start
        // using the fast `Atomics.notify` notification path.
        __emscripten_thread_mailbox_await(msgData.pthread_ptr);
        if (!initializedJS) {
          // Embind must initialize itself on all threads, as it generates support JS.
          // We only do this once per worker since they get reused
          __embind_initialize_bindings();
          initializedJS = true;
        }
        try {
          await invokeEntryPoint(msgData.start_routine, msgData.arg);
        } catch (ex) {
          if (ex != "unwind") {
            // The pthread "crashed".  Do not call `_emscripten_thread_exit` (which
            // would make this thread joinable).  Instead, re-throw the exception
            // and let the top level handler propagate it back to the main thread.
            throw ex;
          }
        }
      } else if (msgData.target === "setimmediate") {} else if (cmd === "checkMailbox") {
        if (initializedJS) {
          checkMailbox();
        }
      } else if (cmd) {
        // The received message looks like something that should be handled by this message
        // handler, (since there is a cmd field present), but is not one of the
        // recognized commands:
        err(`worker: received unknown command ${cmd}`);
        err(msgData);
      }
    } catch (ex) {
      err(`worker: onmessage() captured an uncaught exception: ${ex}`);
      if (ex?.stack) err(ex.stack);
      __emscripten_thread_crashed();
      throw ex;
    }
  }
  self.onmessage = handleMessage;
}

// ENVIRONMENT_IS_PTHREAD
// end include: runtime_pthread.js
function updateMemoryViews() {
  var b = wasmMemory.buffer;
  HEAP8 = new Int8Array(b);
  Module["HEAP16"] = HEAP16 = new Int16Array(b);
  Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
  Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
  Module["HEAP32"] = HEAP32 = new Int32Array(b);
  Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
  Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
  Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
  HEAP64 = new BigInt64Array(b);
  HEAPU64 = new BigUint64Array(b);
}

// end include: runtime_shared.js
assert(typeof Int32Array != "undefined" && typeof Float64Array !== "undefined" && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, "JS engine does not provide full typed array support");

// In non-standalone/normal mode, we create the memory here.
// include: runtime_init_memory.js
// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined)
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
function initMemory() {
  if ((ENVIRONMENT_IS_PTHREAD)) {
    return;
  }
  if (Module["wasmMemory"]) {
    wasmMemory = Module["wasmMemory"];
  } else {
    var INITIAL_MEMORY = Module["INITIAL_MEMORY"] || 16777216;
    assert(INITIAL_MEMORY >= 65536, "INITIAL_MEMORY should be larger than STACK_SIZE, was " + INITIAL_MEMORY + "! (STACK_SIZE=" + 65536 + ")");
    /** @suppress {checkTypes} */ wasmMemory = new WebAssembly.Memory({
      "initial": INITIAL_MEMORY / 65536,
      // In theory we should not need to emit the maximum if we want "unlimited"
      // or 4GB of memory, but VMs error on that atm, see
      // https://github.com/emscripten-core/emscripten/issues/14130
      // And in the pthreads case we definitely need to emit a maximum. So
      // always emit one.
      "maximum": 32768,
      "shared": true
    });
  }
  updateMemoryViews();
}

// end include: runtime_init_memory.js
function preRun() {
  assert(!ENVIRONMENT_IS_PTHREAD);
  // PThreads reuse the runtime from the main thread.
  if (Module["preRun"]) {
    if (typeof Module["preRun"] == "function") Module["preRun"] = [ Module["preRun"] ];
    while (Module["preRun"].length) {
      addOnPreRun(Module["preRun"].shift());
    }
  }
  consumedModuleProp("preRun");
  // Begin ATPRERUNS hooks
  callRuntimeCallbacks(onPreRuns);
}

function initRuntime() {
  assert(!runtimeInitialized);
  runtimeInitialized = true;
  if (ENVIRONMENT_IS_PTHREAD) return startWorker(Module);
  checkStackCookie();
  // Begin ATINITS hooks
  if (!Module["noFSInit"] && !FS.initialized) FS.init();
  TTY.init();
  // End ATINITS hooks
  wasmExports["__wasm_call_ctors"]();
  // Begin ATPOSTCTORS hooks
  FS.ignorePermissions = false;
}

function preMain() {
  checkStackCookie();
}

function postRun() {
  checkStackCookie();
  if ((ENVIRONMENT_IS_PTHREAD)) {
    return;
  }
  // PThreads reuse the runtime from the main thread.
  if (Module["postRun"]) {
    if (typeof Module["postRun"] == "function") Module["postRun"] = [ Module["postRun"] ];
    while (Module["postRun"].length) {
      addOnPostRun(Module["postRun"].shift());
    }
  }
  consumedModuleProp("postRun");
  // Begin ATPOSTRUNS hooks
  callRuntimeCallbacks(onPostRuns);
}

// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;

var dependenciesFulfilled = null;

// overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};

var runDependencyWatcher = null;

function getUniqueRunDependency(id) {
  var orig = id;
  while (1) {
    if (!runDependencyTracking[id]) return id;
    id = orig + Math.random();
  }
}

function addRunDependency(id) {
  runDependencies++;
  Module["monitorRunDependencies"]?.(runDependencies);
  if (id) {
    assert(!runDependencyTracking[id]);
    runDependencyTracking[id] = 1;
    if (runDependencyWatcher === null && typeof setInterval != "undefined") {
      // Check for missing dependencies every few seconds
      runDependencyWatcher = setInterval(() => {
        if (ABORT) {
          clearInterval(runDependencyWatcher);
          runDependencyWatcher = null;
          return;
        }
        var shown = false;
        for (var dep in runDependencyTracking) {
          if (!shown) {
            shown = true;
            err("still waiting on run dependencies:");
          }
          err(`dependency: ${dep}`);
        }
        if (shown) {
          err("(end of list)");
        }
      }, 1e4);
    }
  } else {
    err("warning: run dependency added without ID");
  }
}

function removeRunDependency(id) {
  runDependencies--;
  Module["monitorRunDependencies"]?.(runDependencies);
  if (id) {
    assert(runDependencyTracking[id]);
    delete runDependencyTracking[id];
  } else {
    err("warning: run dependency removed without ID");
  }
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback();
    }
  }
}

/** @param {string|number=} what */ function abort(what) {
  Module["onAbort"]?.(what);
  what = "Aborted(" + what + ")";
  // TODO(sbc): Should we remove printing and leave it up to whoever
  // catches the exception?
  err(what);
  ABORT = true;
  // Use a wasm runtime error, because a JS error might be seen as a foreign
  // exception, which means we'd run destructors on it. We need the error to
  // simply make the program stop.
  // FIXME This approach does not work in Wasm EH because it currently does not assume
  // all RuntimeErrors are from traps; it decides whether a RuntimeError is from
  // a trap or not based on a hidden field within the object. So at the moment
  // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
  // allows this in the wasm spec.
  // Suppress closure compiler warning here. Closure compiler's builtin extern
  // definition for WebAssembly.RuntimeError claims it takes no arguments even
  // though it can.
  // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
  /** @suppress {checkTypes} */ var e = new WebAssembly.RuntimeError(what);
  readyPromiseReject(e);
  // Throw the error whether or not MODULARIZE is set because abort is used
  // in code paths apart from instantiation where an exception is expected
  // to be thrown when abort is called.
  throw e;
}

function createExportWrapper(name, nargs) {
  return (...args) => {
    assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`);
    var f = wasmExports[name];
    assert(f, `exported native function \`${name}\` not found`);
    // Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled.
    assert(args.length <= nargs, `native function \`${name}\` called with ${args.length} args but expects ${nargs}`);
    return f(...args);
  };
}

var wasmBinaryFile;

function findWasmBinary() {
  if (Module["locateFile"]) {
    return locateFile("libxslt.wasm");
  }
  // Use bundler-friendly `new URL(..., import.meta.url)` pattern; works in browsers too.
  return new URL("libxslt.wasm", import.meta.url).href;
}

function getBinarySync(file) {
  if (file == wasmBinaryFile && wasmBinary) {
    return new Uint8Array(wasmBinary);
  }
  if (readBinary) {
    return readBinary(file);
  }
  throw "both async and sync fetching of the wasm failed";
}

async function getWasmBinary(binaryFile) {
  // If we don't have the binary yet, load it asynchronously using readAsync.
  if (!wasmBinary) {
    // Fetch the binary using readAsync
    try {
      var response = await readAsync(binaryFile);
      return new Uint8Array(response);
    } catch {}
  }
  // Otherwise, getBinarySync should be able to get it synchronously
  return getBinarySync(binaryFile);
}

async function instantiateArrayBuffer(binaryFile, imports) {
  try {
    var binary = await getWasmBinary(binaryFile);
    var instance = await WebAssembly.instantiate(binary, imports);
    return instance;
  } catch (reason) {
    err(`failed to asynchronously prepare wasm: ${reason}`);
    // Warn on some common problems.
    if (isFileURI(wasmBinaryFile)) {
      err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`);
    }
    abort(reason);
  }
}

async function instantiateAsync(binary, binaryFile, imports) {
  if (!binary && typeof WebAssembly.instantiateStreaming == "function" && !isFileURI(binaryFile) && !ENVIRONMENT_IS_NODE) {
    try {
      var response = fetch(binaryFile, {
        credentials: "same-origin"
      });
      var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
      return instantiationResult;
    } catch (reason) {
      // We expect the most common failure cause to be a bad MIME type for the binary,
      // in which case falling back to ArrayBuffer instantiation should work.
      err(`wasm streaming compile failed: ${reason}`);
      err("falling back to ArrayBuffer instantiation");
    }
  }
  return instantiateArrayBuffer(binaryFile, imports);
}

function getWasmImports() {
  assignWasmImports();
  // instrumenting imports is used in asyncify in two ways: to add assertions
  // that check for proper import use, and for ASYNCIFY=2 we use them to set up
  // the Promise API on the import side.
  // In pthreads builds getWasmImports is called more than once but we only
  // and the instrument the imports once.
  if (!wasmImports.__instrumented) {
    wasmImports.__instrumented = true;
    Asyncify.instrumentWasmImports(wasmImports);
  }
  // prepare imports
  return {
    "env": wasmImports,
    "wasi_snapshot_preview1": wasmImports
  };
}

// Create the wasm instance.
// Receives the wasm imports, returns the exports.
async function createWasm() {
  // Load the wasm module and create an instance of using native support in the JS engine.
  // handle a generated wasm instance, receiving its exports and
  // performing other necessary setup
  /** @param {WebAssembly.Module=} module*/ function receiveInstance(instance, module) {
    wasmExports = instance.exports;
    wasmExports = Asyncify.instrumentWasmExports(wasmExports);
    registerTLSInit(wasmExports["_emscripten_tls_init"]);
    wasmTable = wasmExports["__indirect_function_table"];
    assert(wasmTable, "table not found in wasm exports");
    // We now have the Wasm module loaded up, keep a reference to the compiled module so we can post it to the workers.
    wasmModule = module;
    removeRunDependency("wasm-instantiate");
    return wasmExports;
  }
  // wait for the pthread pool (if any)
  addRunDependency("wasm-instantiate");
  // Prefer streaming instantiation if available.
  // Async compilation can be confusing when an error on the page overwrites Module
  // (for example, if the order of elements is wrong, and the one defining Module is
  // later), so we save Module and check it later.
  var trueModule = Module;
  function receiveInstantiationResult(result) {
    // 'result' is a ResultObject object which has both the module and instance.
    // receiveInstance() will swap in the exports (to Module.asm) so they can be called
    assert(Module === trueModule, "the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?");
    trueModule = null;
    return receiveInstance(result["instance"], result["module"]);
  }
  var info = getWasmImports();
  // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
  // to manually instantiate the Wasm module themselves. This allows pages to
  // run the instantiation parallel to any other async startup actions they are
  // performing.
  // Also pthreads and wasm workers initialize the wasm instance through this
  // path.
  if (Module["instantiateWasm"]) {
    return new Promise((resolve, reject) => {
      try {
        Module["instantiateWasm"](info, (mod, inst) => {
          resolve(receiveInstance(mod, inst));
        });
      } catch (e) {
        err(`Module.instantiateWasm callback failed with error: ${e}`);
        reject(e);
      }
    });
  }
  if ((ENVIRONMENT_IS_PTHREAD)) {
    return new Promise(resolve => {
      wasmModuleReceived = module => {
        // Instantiate from the module posted from the main thread.
        // We can just use sync instantiation in the worker.
        var instance = new WebAssembly.Instance(module, getWasmImports());
        resolve(receiveInstance(instance, module));
      };
    });
  }
  wasmBinaryFile ??= findWasmBinary();
  try {
    var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
    var exports = receiveInstantiationResult(result);
    return exports;
  } catch (e) {
    // If instantiation fails, reject the module ready promise.
    readyPromiseReject(e);
    return Promise.reject(e);
  }
}

// end include: preamble.js
// Begin JS library code
class ExitStatus {
  name="ExitStatus";
  constructor(status) {
    this.message = `Program terminated with exit(${status})`;
    this.status = status;
  }
}

var terminateWorker = worker => {
  worker.terminate();
  // terminate() can be asynchronous, so in theory the worker can continue
  // to run for some amount of time after termination.  However from our POV
  // the worker now dead and we don't want to hear from it again, so we stub
  // out its message handler here.  This avoids having to check in each of
  // the onmessage handlers if the message was coming from valid worker.
  worker.onmessage = e => {
    var cmd = e["data"].cmd;
    err(`received "${cmd}" command from terminated worker: ${worker.workerID}`);
  };
};

var cleanupThread = pthread_ptr => {
  assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! cleanupThread() can only ever be called from main application thread!");
  assert(pthread_ptr, "Internal Error! Null pthread_ptr in cleanupThread!");
  var worker = PThread.pthreads[pthread_ptr];
  assert(worker);
  PThread.returnWorkerToPool(worker);
};

var callRuntimeCallbacks = callbacks => {
  while (callbacks.length > 0) {
    // Pass the module as the first argument.
    callbacks.shift()(Module);
  }
};

var onPreRuns = [];

var addOnPreRun = cb => onPreRuns.push(cb);

var spawnThread = threadParams => {
  assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! spawnThread() can only ever be called from main application thread!");
  assert(threadParams.pthread_ptr, "Internal error, no pthread ptr!");
  var worker = PThread.getNewWorker();
  if (!worker) {
    // No available workers in the PThread pool.
    return 6;
  }
  assert(!worker.pthread_ptr, "Internal error!");
  PThread.runningWorkers.push(worker);
  // Add to pthreads map
  PThread.pthreads[threadParams.pthread_ptr] = worker;
  worker.pthread_ptr = threadParams.pthread_ptr;
  var msg = {
    cmd: "run",
    start_routine: threadParams.startRoutine,
    arg: threadParams.arg,
    pthread_ptr: threadParams.pthread_ptr
  };
  if (ENVIRONMENT_IS_NODE) {
    // Mark worker as weakly referenced once we start executing a pthread,
    // so that its existence does not prevent Node.js from exiting.  This
    // has no effect if the worker is already weakly referenced (e.g. if
    // this worker was previously idle/unused).
    worker.unref();
  }
  // Ask the worker to start executing its pthread entry point function.
  worker.postMessage(msg, threadParams.transferList);
  return 0;
};

var runtimeKeepaliveCounter = 0;

var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;

var stackSave = () => _emscripten_stack_get_current();

var stackRestore = val => __emscripten_stack_restore(val);

var stackAlloc = sz => __emscripten_stack_alloc(sz);

/** @type{function(number, (number|boolean), ...number)} */ var proxyToMainThread = (funcIndex, emAsmAddr, sync, ...callArgs) => {
  // EM_ASM proxying is done by passing a pointer to the address of the EM_ASM
  // content as `emAsmAddr`.  JS library proxying is done by passing an index
  // into `proxiedJSCallArgs` as `funcIndex`. If `emAsmAddr` is non-zero then
  // `funcIndex` will be ignored.
  // Additional arguments are passed after the first three are the actual
  // function arguments.
  // The serialization buffer contains the number of call params, and then
  // all the args here.
  // We also pass 'sync' to C separately, since C needs to look at it.
  // Allocate a buffer, which will be copied by the C code.
  // First passed parameter specifies the number of arguments to the function.
  // When BigInt support is enabled, we must handle types in a more complex
  // way, detecting at runtime if a value is a BigInt or not (as we have no
  // type info here). To do that, add a "prefix" before each value that
  // indicates if it is a BigInt, which effectively doubles the number of
  // values we serialize for proxying. TODO: pack this?
  var serializedNumCallArgs = callArgs.length * 2;
  var sp = stackSave();
  var args = stackAlloc(serializedNumCallArgs * 8);
  var b = ((args) >> 3);
  for (var i = 0; i < callArgs.length; i++) {
    var arg = callArgs[i];
    if (typeof arg == "bigint") {
      // The prefix is non-zero to indicate a bigint.
      HEAP64[b + 2 * i] = 1n;
      HEAP64[b + 2 * i + 1] = arg;
    } else {
      // The prefix is zero to indicate a JS Number.
      HEAP64[b + 2 * i] = 0n;
      GROWABLE_HEAP_F64()[b + 2 * i + 1] = arg;
    }
  }
  var rtn = __emscripten_run_on_main_thread_js(funcIndex, emAsmAddr, serializedNumCallArgs, args, sync);
  stackRestore(sp);
  return rtn;
};

function _proc_exit(code) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(0, 0, 1, code);
  EXITSTATUS = code;
  if (!keepRuntimeAlive()) {
    PThread.terminateAllThreads();
    Module["onExit"]?.(code);
    ABORT = true;
  }
  quit_(code, new ExitStatus(code));
}

function exitOnMainThread(returnCode) {
  if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(1, 0, 0, returnCode);
  _exit(returnCode);
}

/** @suppress {duplicate } */ /** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => {
  EXITSTATUS = status;
  checkUnflushedContent();
  if (ENVIRONMENT_IS_PTHREAD) {
    // implicit exit can never happen on a pthread
    assert(!implicit);
    // When running in a pthread we propagate the exit back to the main thread
    // where it can decide if the whole process should be shut down or not.
    // The pthread may have decided not to exit its own runtime, for example
    // because it runs a main loop, but that doesn't affect the main thread.
    exitOnMainThread(status);
    throw "unwind";
  }
  // if exit() was called explicitly, warn the user if the runtime isn't actually being shut down
  if (keepRuntimeAlive() && !implicit) {
    var msg = `program exited (with status: ${status}), but keepRuntimeAlive() is set (counter=${runtimeKeepaliveCounter}) due to an async operation, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)`;
    readyPromiseReject(msg);
    err(msg);
  }
  _proc_exit(status);
};

var _exit = exitJS;

var ptrToString = ptr => {
  assert(typeof ptr === "number");
  // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
  ptr >>>= 0;
  return "0x" + ptr.toString(16).padStart(8, "0");
};

var PThread = {
  unusedWorkers: [],
  runningWorkers: [],
  tlsInitFunctions: [],
  pthreads: {},
  nextWorkerID: 1,
  init() {
    if ((!(ENVIRONMENT_IS_PTHREAD))) {
      PThread.initMainThread();
    }
  },
  initMainThread() {
    // MINIMAL_RUNTIME takes care of calling loadWasmModuleToAllWorkers
    // in postamble_minimal.js
    addOnPreRun(() => {
      addRunDependency("loading-workers");
      PThread.loadWasmModuleToAllWorkers(() => removeRunDependency("loading-workers"));
    });
  },
  terminateAllThreads: () => {
    assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! terminateAllThreads() can only ever be called from main application thread!");
    // Attempt to kill all workers.  Sadly (at least on the web) there is no
    // way to terminate a worker synchronously, or to be notified when a
    // worker in actually terminated.  This means there is some risk that
    // pthreads will continue to be executing after `worker.terminate` has
    // returned.  For this reason, we don't call `returnWorkerToPool` here or
    // free the underlying pthread data structures.
    for (var worker of PThread.runningWorkers) {
      terminateWorker(worker);
    }
    for (var worker of PThread.unusedWorkers) {
      terminateWorker(worker);
    }
    PThread.unusedWorkers = [];
    PThread.runningWorkers = [];
    PThread.pthreads = {};
  },
  returnWorkerToPool: worker => {
    // We don't want to run main thread queued calls here, since we are doing
    // some operations that leave the worker queue in an invalid state until
    // we are completely done (it would be bad if free() ends up calling a
    // queued pthread_create which looks at the global data structures we are
    // modifying). To achieve that, defer the free() til the very end, when
    // we are all done.
    var pthread_ptr = worker.pthread_ptr;
    delete PThread.pthreads[pthread_ptr];
    // Note: worker is intentionally not terminated so the pool can
    // dynamically grow.
    PThread.unusedWorkers.push(worker);
    PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1);
    // Not a running Worker anymore
    // Detach the worker from the pthread object, and return it to the
    // worker pool as an unused worker.
    worker.pthread_ptr = 0;
    // Finally, free the underlying (and now-unused) pthread structure in
    // linear memory.
    __emscripten_thread_free_data(pthread_ptr);
  },
  threadInitTLS() {
    // Call thread init functions (these are the _emscripten_tls_init for each
    // module loaded.
    PThread.tlsInitFunctions.forEach(f => f());
  },
  loadWasmModuleToWorker: worker => new Promise(onFinishedLoading => {
    worker.onmessage = e => {
      var d = e["data"];
      var cmd = d.cmd;
      // If this message is intended to a recipient that is not the main
      // thread, forward it to the target thread.
      if (d.targetThread && d.targetThread != _pthread_self()) {
        var targetWorker = PThread.pthreads[d.targetThread];
        if (targetWorker) {
          targetWorker.postMessage(d, d.transferList);
        } else {
          err(`Internal error! Worker sent a message "${cmd}" to target pthread ${d.targetThread}, but that thread no longer exists!`);
        }
        return;
      }
      if (cmd === "checkMailbox") {
        checkMailbox();
      } else if (cmd === "spawnThread") {
        spawnThread(d);
      } else if (cmd === "cleanupThread") {
        cleanupThread(d.thread);
      } else if (cmd === "loaded") {
        worker.loaded = true;
        onFinishedLoading(worker);
      } else if (d.target === "setimmediate") {
        // Worker wants to postMessage() to itself to implement setImmediate()
        // emulation.
        worker.postMessage(d);
      } else if (cmd === "callHandler") {
        Module[d.handler](...d.args);
      } else if (cmd) {
        // The received message looks like something that should be handled by this message
        // handler, (since there is a e.data.cmd field present), but is not one of the