emglken/build/hugo.js

Glk meets Emscripten

// This code implements the `-sMODULARIZE` settings by taking the generated
// JS program code (INNER_JS_CODE) and wrapping it in a factory function.

// When targeting node and ES6 we use `await import ..` in the generated code
// so the outer function needs to be marked as async.
async function Module(moduleArg = {}) {
  var moduleRtn;

// include: shell.js
// include: minimum_runtime_check.js
// end include: minimum_runtime_check.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;

// 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 = !!globalThis.window;

var ENVIRONMENT_IS_WORKER = !!globalThis.WorkerGlobalScope;

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

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("node:module");
  /** @suppress{duplicate} */ var require = createRequire(import.meta.url);
}

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// include: /src/src/preamble.js
/*

Emglken preamble
================

Copyright (c) 2024 Dannii Willis
MIT licenced
https://github.com/curiousdannii/emglken

*/ // Make eslint happy
/* eslint no-unused-vars: "off" */ /* global callMain, Module */ let Dialog;

let GlkOte;

let glkote_event_data;

// eslint-disable-next-line prefer-const
let glkote_event_ready = () => {};

// Our main start function
// We depart from the Quixe standard in these ways:
// - `options.arguments` must be set in order to play a storyfile
// - no longer receives the storyfile - the Dialog library will handle loading it
Module["start"] = function(options) {
  Dialog = options.Dialog;
  if (!Dialog.async) {
    throw new Error("Emglken requires an async Dialog library");
  }
  GlkOte = options.GlkOte;
  options.accept = accept;
  callMain(options.arguments);
  GlkOte.init(options);
};

function accept(data) {
  if (glkote_event_data) {
    console.warn("Already have GlkOte event when next event arrives");
  }
  glkote_event_data = data;
  glkote_event_ready();
}

// Log output
//Module['print'] = console.log
// In single-file mode new URL constructor won't work
Module["locateFile"] = function(filename) {
  try {
    return new URL(filename, import.meta.url).href;
  } catch {
    return filename;
  }
};

// end include: /src/src/preamble.js
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) {
  // These modules will usually be used on Node.js. Load them eagerly to avoid
  // the complexity of lazy-loading.
  var fs = require("node:fs");
  if (_scriptName.startsWith("file:")) {
    scriptDirectory = require("node:path").dirname(require("node: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);
    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");
    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 // 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 {}
  {
    // include: web_or_worker_shell_read.js
    readAsync = async url => {
      var response = await fetch(url, {
        credentials: "same-origin"
      });
      if (response.ok) {
        return response.arrayBuffer();
      }
      throw new Error(response.status + " : " + response.url);
    };
  }
} else {}

var out = console.log.bind(console);

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

// 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;

// Wasm globals
//========================================
// 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 in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;

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

// include: runtime_common.js
// include: runtime_stack_check.js
// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// Base Emscripten EH error class
class EmscriptenEH {}

class EmscriptenSjLj extends EmscriptenEH {}

// end include: runtime_exceptions.js
// include: runtime_debug.js
// end include: runtime_debug.js
var readyPromiseResolve, readyPromiseReject;

// Memory management
var runtimeInitialized = false;

var runtimeExited = false;

function updateMemoryViews() {
  var b = wasmMemory.buffer;
  HEAP8 = new Int8Array(b);
  HEAP16 = new Int16Array(b);
  HEAPU8 = new Uint8Array(b);
  HEAPU16 = new Uint16Array(b);
  HEAP32 = new Int32Array(b);
  HEAPU32 = new Uint32Array(b);
  HEAPF32 = new Float32Array(b);
  HEAPF64 = new Float64Array(b);
  HEAP64 = new BigInt64Array(b);
  HEAPU64 = new BigUint64Array(b);
}

// include: memoryprofiler.js
// end include: memoryprofiler.js
// end include: runtime_common.js
function preRun() {}

function initRuntime() {
  runtimeInitialized = true;
  // No ATINITS hooks
  wasmExports["B"]();
}

function preMain() {}

function exitRuntime() {
  // PThreads reuse the runtime from the main thread.
  ___funcs_on_exit();
  // Native atexit() functions
  // Begin ATEXITS hooks
  flush_NO_FILESYSTEM();
  // End ATEXITS hooks
  runtimeExited = true;
}

function postRun() {}

/**
 * @param {string|number=} what
 * @noreturn
 */ function abort(what) {
  what = `Aborted(${what})`;
  // TODO(sbc): Should we remove printing and leave it up to whoever
  // catches the exception?
  err(what);
  ABORT = true;
  what += ". Build with -sASSERTIONS for more info.";
  // 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;
}

var wasmBinaryFile;

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

function getBinarySync(file) {
  if (file == wasmBinaryFile && wasmBinary) {
    return new Uint8Array(wasmBinary);
  }
  if (readBinary) {
    return readBinary(file);
  }
  // Throwing a plain string here, even though it not normally advisable since
  // this gets turning into an `abort` in instantiateArrayBuffer.
  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}`);
    abort(reason);
  }
}

async function instantiateAsync(binary, binaryFile, imports) {
  if (!binary && !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() {
  // prepare imports
  var imports = {
    "a": wasmImports
  };
  return imports;
}

// 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);
    assignWasmExports(wasmExports);
    updateMemoryViews();
    return wasmExports;
  }
  // Prefer streaming instantiation if available.
  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
    // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
    // When the regression is fixed, can restore the above PTHREADS-enabled path.
    return receiveInstance(result["instance"]);
  }
  var info = getWasmImports();
  wasmBinaryFile ??= findWasmBinary();
  var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
  var exports = receiveInstantiationResult(result);
  return exports;
}

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

/** @type {!Int16Array} */ var HEAP16;

/** @type {!Int32Array} */ var HEAP32;

/** not-@type {!BigInt64Array} */ var HEAP64;

/** @type {!Int8Array} */ var HEAP8;

/** @type {!Float32Array} */ var HEAPF32;

/** @type {!Float64Array} */ var HEAPF64;

/** @type {!Uint16Array} */ var HEAPU16;

/** @type {!Uint32Array} */ var HEAPU32;

/** not-@type {!BigUint64Array} */ var HEAPU64;

/** @type {!Uint8Array} */ var HEAPU8;

var dynCalls = {};

var ___call_sighandler = (fp, sig) => (a1 => dynCall_vi(fp, a1))(sig);

var ___syscall_getcwd = (buf, size) => {};

var __abort_js = () => abort("");

var runtimeKeepaliveCounter = 0;

var __emscripten_runtime_keepalive_clear = () => {
  runtimeKeepaliveCounter = 0;
};

var isLeapYear = year => year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);

var MONTH_DAYS_LEAP_CUMULATIVE = [ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 ];

var MONTH_DAYS_REGULAR_CUMULATIVE = [ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 ];

var ydayFromDate = date => {
  var leap = isLeapYear(date.getFullYear());
  var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE);
  var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1;
  // -1 since it's days since Jan 1
  return yday;
};

var INT53_MAX = 9007199254740992;

var INT53_MIN = -9007199254740992;

var bigintToI53Checked = num => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num);

function __localtime_js(time, tmPtr) {
  time = bigintToI53Checked(time);
  var date = new Date(time * 1e3);
  HEAP32[((tmPtr) >> 2)] = date.getSeconds();
  HEAP32[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
  HEAP32[(((tmPtr) + (8)) >> 2)] = date.getHours();
  HEAP32[(((tmPtr) + (12)) >> 2)] = date.getDate();
  HEAP32[(((tmPtr) + (16)) >> 2)] = date.getMonth();
  HEAP32[(((tmPtr) + (20)) >> 2)] = date.getFullYear() - 1900;
  HEAP32[(((tmPtr) + (24)) >> 2)] = date.getDay();
  var yday = ydayFromDate(date) | 0;
  HEAP32[(((tmPtr) + (28)) >> 2)] = yday;
  HEAP32[(((tmPtr) + (36)) >> 2)] = -(date.getTimezoneOffset() * 60);
  // Attention: DST is in December in South, and some regions don't have DST at all.
  var start = new Date(date.getFullYear(), 0, 1);
  var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
  var winterOffset = start.getTimezoneOffset();
  var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset)) | 0;
  HEAP32[(((tmPtr) + (32)) >> 2)] = dst;
}

var timers = {};

var handleException = e => {
  // Certain exception types we do not treat as errors since they are used for
  // internal control flow.
  // 1. ExitStatus, which is thrown by exit()
  // 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
  //    that wish to return to JS event loop.
  if (e instanceof ExitStatus || e == "unwind") {
    return EXITSTATUS;
  }
  quit_(1, e);
};

var keepRuntimeAlive = () => runtimeKeepaliveCounter > 0;

/** @noreturn */ var _proc_exit = code => {
  EXITSTATUS = code;
  if (!keepRuntimeAlive()) {
    ABORT = true;
  }
  quit_(code, new ExitStatus(code));
};

/** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => {
  EXITSTATUS = status;
  if (!keepRuntimeAlive()) {
    exitRuntime();
  }
  _proc_exit(status);
};

var _exit = exitJS;

var maybeExit = () => {
  if (runtimeExited) {
    return;
  }
  if (!keepRuntimeAlive()) {
    try {
      _exit(EXITSTATUS);
    } catch (e) {
      handleException(e);
    }
  }
};

var callUserCallback = func => {
  if (runtimeExited || ABORT) {
    return;
  }
  try {
    return func();
  } catch (e) {
    handleException(e);
  } finally {
    maybeExit();
  }
};

var _emscripten_get_now = () => performance.now();

var __setitimer_js = (which, timeout_ms) => {
  // First, clear any existing timer.
  if (timers[which]) {
    clearTimeout(timers[which].id);
    delete timers[which];
  }
  // A timeout of zero simply cancels the current timeout so we have nothing
  // more to do.
  if (!timeout_ms) return 0;
  var id = setTimeout(() => {
    delete timers[which];
    callUserCallback(() => __emscripten_timeout(which, _emscripten_get_now()));
  }, timeout_ms);
  timers[which] = {
    id,
    timeout_ms
  };
  return 0;
};

var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
  // Parameter maxBytesToWrite is not optional. Negative values, 0, null,
  // undefined and false each don't write out any bytes.
  if (!(maxBytesToWrite > 0)) return 0;
  var startIdx = outIdx;
  var endIdx = outIdx + maxBytesToWrite - 1;
  // -1 for string null terminator.
  for (var i = 0; i < str.length; ++i) {
    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
    // and https://www.ietf.org/rfc/rfc2279.txt
    // and https://tools.ietf.org/html/rfc3629
    var u = str.codePointAt(i);
    if (u <= 127) {
      if (outIdx >= endIdx) break;
      heap[outIdx++] = u;
    } else if (u <= 2047) {
      if (outIdx + 1 >= endIdx) break;
      heap[outIdx++] = 192 | (u >> 6);
      heap[outIdx++] = 128 | (u & 63);
    } else if (u <= 65535) {
      if (outIdx + 2 >= endIdx) break;
      heap[outIdx++] = 224 | (u >> 12);
      heap[outIdx++] = 128 | ((u >> 6) & 63);
      heap[outIdx++] = 128 | (u & 63);
    } else {
      if (outIdx + 3 >= endIdx) break;
      heap[outIdx++] = 240 | (u >> 18);
      heap[outIdx++] = 128 | ((u >> 12) & 63);
      heap[outIdx++] = 128 | ((u >> 6) & 63);
      heap[outIdx++] = 128 | (u & 63);
      // Gotcha: if codePoint is over 0xFFFF, it is represented as a surrogate pair in UTF-16.
      // We need to manually skip over the second code unit for correct iteration.
      i++;
    }
  }
  // Null-terminate the pointer to the buffer.
  heap[outIdx] = 0;
  return outIdx - startIdx;
};

var stringToUTF8 = (str, outPtr, maxBytesToWrite) => stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);

var __tzset_js = (timezone, daylight, std_name, dst_name) => {
  // TODO: Use (malleable) environment variables instead of system settings.
  var currentYear = (new Date).getFullYear();
  var winter = new Date(currentYear, 0, 1);
  var summer = new Date(currentYear, 6, 1);
  var winterOffset = winter.getTimezoneOffset();
  var summerOffset = summer.getTimezoneOffset();
  // Local standard timezone offset. Local standard time is not adjusted for
  // daylight savings.  This code uses the fact that getTimezoneOffset returns
  // a greater value during Standard Time versus Daylight Saving Time (DST).
  // Thus it determines the expected output during Standard Time, and it
  // compares whether the output of the given date the same (Standard) or less
  // (DST).
  var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
  // timezone is specified as seconds west of UTC ("The external variable
  // `timezone` shall be set to the difference, in seconds, between
  // Coordinated Universal Time (UTC) and local standard time."), the same
  // as returned by stdTimezoneOffset.
  // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
  HEAPU32[((timezone) >> 2)] = stdTimezoneOffset * 60;
  HEAP32[((daylight) >> 2)] = Number(winterOffset != summerOffset);
  var extractZone = timezoneOffset => {
    // Why inverse sign?
    // Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
    var sign = timezoneOffset >= 0 ? "-" : "+";
    var absOffset = Math.abs(timezoneOffset);
    var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
    var minutes = String(absOffset % 60).padStart(2, "0");
    return `UTC${sign}${hours}${minutes}`;
  };
  var winterName = extractZone(winterOffset);
  var summerName = extractZone(summerOffset);
  if (summerOffset < winterOffset) {
    // Northern hemisphere
    stringToUTF8(winterName, std_name, 17);
    stringToUTF8(summerName, dst_name, 17);
  } else {
    stringToUTF8(winterName, dst_name, 17);
    stringToUTF8(summerName, std_name, 17);
  }
};

var _emscripten_date_now = () => Date.now();

var nowIsMonotonic = 1;

var checkWasiClock = clock_id => clock_id >= 0 && clock_id <= 3;

function _clock_time_get(clk_id, ignored_precision, ptime) {
  ignored_precision = bigintToI53Checked(ignored_precision);
  if (!checkWasiClock(clk_id)) {
    return 28;
  }
  var now;
  // all wasi clocks but realtime are monotonic
  if (clk_id === 0) {
    now = _emscripten_date_now();
  } else if (nowIsMonotonic) {
    now = _emscripten_get_now();
  } else {
    return 52;
  }
  // "now" is in ms, and wasi times are in ns.
  var nsec = Math.round(now * 1e3 * 1e3);
  HEAP64[((ptime) >> 3)] = BigInt(nsec);
  return 0;
}

function writeBuffer(buffer, data) {
  const ptr = _malloc(data.length);
  HEAP8.set(data, ptr);
  HEAP32[((buffer) >> 2)] = ptr;
  HEAP32[(((buffer) + (4)) >> 2)] = data.length;
}

function writeBufferJSON(buffer, data) {
  const json = JSON.stringify(data);
  writeBuffer(buffer, encoder.encode(json));
}

var UTF8Decoder = new TextDecoder;

var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => {
  var maxIdx = idx + maxBytesToRead;
  if (ignoreNul) return maxIdx;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on
  // null terminator by itself.
  // As a tiny code save trick, compare idx against maxIdx using a negation,
  // so that maxBytesToRead=undefined/NaN means Infinity.
  while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx;
  return idx;
};

/**
   * Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
   * emscripten HEAP, returns a copy of that string as a Javascript String object.
   *
   * @param {number} ptr
   * @param {number=} maxBytesToRead - An optional length that specifies the
   *   maximum number of bytes to read. You can omit this parameter to scan the
   *   string until the first 0 byte. If maxBytesToRead is passed, and the string
   *   at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
   *   string will cut short at that byte index.
   * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
   * @return {string}
   */ var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => {
  if (!ptr) return "";
  var end = findStringEnd(HEAPU8, ptr, maxBytesToRead, ignoreNul);
  return UTF8Decoder.decode(HEAPU8.subarray(ptr, end));
};

function _emglken_file_delete_sync(path_ptr, path_len) {
  const path = UTF8ToString(path_ptr, path_len);
  Dialog.delete(path);
}

var _emglken_file_exists = function emglken_file_exists(path_ptr, path_len) {
  return Asyncify.handleAsync(async () => {
    const path = UTF8ToString(path_ptr, path_len);
    return Dialog.exists(path);
  });
};

_emglken_file_exists.isAsync = true;

var _emglken_file_flush = function emglken_file_flush() {
  return Asyncify.handleAsync(async () => {
    await Dialog.write(emglken_files);
    emglken_files = {};
  });
};

_emglken_file_flush.isAsync = true;

function _emglken_file_flush_sync() {
  Dialog.write(emglken_files);
}

var _emglken_file_read = function emglken_file_read(path_ptr, path_len, buffer) {
  return Asyncify.handleAsync(async () => {
    const path = UTF8ToString(path_ptr, path_len);
    const data = await Dialog.read(path);
    if (data) {
      writeBuffer(buffer, data);
      return true;
    }
    return false;
  });
};

_emglken_file_read.isAsync = true;

function _emglken_file_write_buffer(path_ptr, path_len, buf_ptr, buf_len) {
  const path = UTF8ToString(path_ptr, path_len);
  const data = HEAP8.subarray(buf_ptr, buf_ptr + buf_len);
  emglken_files[path] = data;
}

function _emglken_get_dirs(buffer) {
  const dirs = Dialog.get_dirs();
  writeBufferJSON(buffer, dirs);
}

var _emglken_get_glkote_event = function emglken_get_glkote_event(buffer) {
  return Asyncify.handleAsync(async () => {
    if (!glkote_event_data) {
      await new Promise(resolve => {
        glkote_event_ready = resolve;
      });
    }
    writeBufferJSON(buffer, glkote_event_data);
    glkote_event_data = null;
  });
};

_emglken_get_glkote_event.isAsync = true;

function _emglken_send_glkote_update(update_ptr, update_len) {
  const obj = JSON.parse(UTF8ToString(update_ptr, update_len));
  GlkOte.update(obj);
}

function _emglken_set_storyfile_dir(path_ptr, path_len, buffer) {
  const path = UTF8ToString(path_ptr, path_len);
  const dirs = Dialog.set_storyfile_dir(path);
  writeBufferJSON(buffer, dirs);
}

var getHeapMax = () => // Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate
// full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side
// for any code that deals with heap sizes, which would require special
// casing all heap size related code to treat 0 specially.
2147483648;

var alignMemory = (size, alignment) => Math.ceil(size / alignment) * alignment;

var growMemory = size => {
  var oldHeapSize = wasmMemory.buffer.byteLength;
  var pages = ((size - oldHeapSize + 65535) / 65536) | 0;
  try {
    // round size grow request up to wasm page size (fixed 64KB per spec)
    wasmMemory.grow(pages);
    // .grow() takes a delta compared to the previous size
    updateMemoryViews();
    return 1;
  } catch (e) {}
};

var _emscripten_resize_heap = requestedSize => {
  var oldSize = HEAPU8.length;
  // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
  requestedSize >>>= 0;
  // With multithreaded builds, races can happen (another thread might increase the size
  // in between), so return a failure, and let the caller retry.
  // Memory resize rules:
  // 1.  Always increase heap size to at least the requested size, rounded up
  //     to next page multiple.
  // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
  //     geometrically: increase the heap size according to
  //     MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
  //     overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
  // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
  //     linearly: increase the heap size by at least
  //     MEMORY_GROWTH_LINEAR_STEP bytes.
  // 3.  Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
  //     MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
  // 4.  If we were unable to allocate as much memory, it may be due to
  //     over-eager decision to excessively reserve due to (3) above.
  //     Hence if an allocation fails, cut down on the amount of excess
  //     growth, in an attempt to succeed to perform a smaller allocation.
  // A limit is set for how much we can grow. We should not exceed that
  // (the wasm binary specifies it, so if we tried, we'd fail anyhow).
  var maxHeapSize = getHeapMax();
  if (requestedSize > maxHeapSize) {
    return false;
  }
  // Loop through potential heap size increases. If we attempt a too eager
  // reservation that fails, cut down on the attempted size and reserve a
  // smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
  for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
    var overGrownHeapSize = oldSize * (1 + .2 / cutDown);
    // ensure geometric growth
    // but limit overreserving (default to capping at +96MB overgrowth at most)
    overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296);
    var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536));
    var replacement = growMemory(newSize);
    if (replacement) {
      return true;
    }
  }
  return false;
};

var ENV = {};

var getExecutableName = () => thisProgram || "./this.program";

var getEnvStrings = () => {
  if (!getEnvStrings.strings) {
    // Default values.
    // Browser language detection #8751
    var lang = (globalThis.navigator?.language ?? "C").replace("-", "_") + ".UTF-8";
    var env = {
      "USER": "web_user",
      "LOGNAME": "web_user",
      "PATH": "/",
      "PWD": "/",
      "HOME": "/home/web_user",
      "LANG": lang,
      "_": getExecutableName()
    };
    // Apply the user-provided values, if any.
    for (var x in ENV) {
      // x is a key in ENV; if ENV[x] is undefined, that means it was
      // explicitly set to be so. We allow user code to do that to
      // force variables with default values to remain unset.
      if (ENV[x] === undefined) delete env[x]; else env[x] = ENV[x];
    }
    var strings = [];
    for (var x in env) {
      strings.push(`${x}=${env[x]}`);
    }
    getEnvStrings.strings = strings;
  }
  return getEnvStrings.strings;
};

var _environ_get = (__environ, environ_buf) => {
  var bufSize = 0;
  var envp = 0;
  for (var string of getEnvStrings()) {
    var ptr = environ_buf + bufSize;
    HEAPU32[(((__environ) + (envp)) >> 2)] = ptr;
    bufSize += stringToUTF8(string, ptr, Infinity) + 1;
    envp += 4;
  }
  return 0;
};

var lengthBytesUTF8 = str => {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
    // unit, not a Unicode code point of the character! So decode
    // UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var c = str.charCodeAt(i);
    // possibly a lead surrogate
    if (c <= 127) {
      len++;
    } else if (c <= 2047) {
      len += 2;
    } else if (c >= 55296 && c <= 57343) {
      len += 4;
      ++i;
    } else {
      len += 3;
    }
  }
  return len;
};

var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
  var strings = getEnvStrings();
  HEAPU32[((penviron_count) >> 2)] = strings.length;
  var bufSize = 0;
  for (var string of strings) {
    bufSize += lengthBytesUTF8(string) + 1;
  }
  HEAPU32[((penviron_buf_size) >> 2)] = bufSize;
  return 0;
};

var printCharBuffers = [ null, [], [] ];

/**
   * Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
   * array that contains uint8 values, returns a copy of that string as a
   * Javascript String object.
   * heapOrArray is either a regular array, or a JavaScript typed array view.
   * @param {number=} idx
   * @param {number=} maxBytesToRead
   * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
   * @return {string}
   */ var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => {
  var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul);
  return UTF8Decoder.decode(heapOrArray.buffer ? heapOrArray.subarray(idx, endPtr) : new Uint8Array(heapOrArray.slice(idx, endPtr)));
};

var printChar = (stream, curr) => {
  var buffer = printCharBuffers[stream];
  if (curr === 0 || curr === 10) {
    (stream === 1 ? out : err)(UTF8ArrayToString(buffer));
    buffer.length = 0;
  } else {
    buffer.push(curr);
  }
};

var flush_NO_FILESYSTEM = () => {
  // flush anything remaining in the buffers during shutdown
  _fflush(0);
  if (printCharBuffers[1].length) printChar(1, 10);
  if (printCharBuffers[2].length) printChar(2, 10);
};

var _fd_write = (fd, iov, iovcnt, pnum) => {
  // hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0
  var num = 0;
  for (var i = 0; i < iovcnt; i++) {
    var ptr = HEAPU32[((iov) >> 2)];
    var len = HEAPU32[(((iov) + (4)) >> 2)];
    iov += 8;
    for (var j = 0; j < len; j++) {
      printChar(fd, HEAPU8[ptr + j]);
    }
    num += len;
  }
  HEAPU32[((pnum) >> 2)] = num;
  return 0;
};

var initRandomFill = () => {
  // This block is not needed on v19+ since crypto.getRandomValues is builtin
  if (ENVIRONMENT_IS_NODE) {
    var nodeCrypto = require("node:crypto");
    return view => nodeCrypto.randomFillSync(view);
  }
  return view => (crypto.getRandomValues(view), 0);
};

var randomFill = view => (randomFill = initRandomFill())(view);

var _random_get = (buffer, size) => randomFill(HEAPU8.subarray(buffer, buffer + size));

var stackAlloc = sz => __emscripten_stack_alloc(sz);

var stringToUTF8OnStack = str => {
  var size = lengthBytesUTF8(str) + 1;
  var ret = stackAlloc(size);
  stringToUTF8(str, ret, size);
  return ret;
};

var runAndAbortIfError = func => {
  try {
    return func();
  } catch (e) {
    abort(e);
  }
};

var runtimeKeepalivePush = () => {
  runtimeKeepaliveCounter += 1;
};

var runtimeKeepalivePop = () => {
  runtimeKeepaliveCounter -= 1;
};

var Asyncify = {
  instrumentWasmImports(imports) {
    var importPattern = /^(__asyncjs__.*)$/;
    for (let [x, original] of Object.entries(imports)) {
      if (typeof original == "function") {
        let isAsyncifyImport = original.isAsync || importPattern.test(x);
      }
    }
  },
  instrumentFunction(original) {
    var wrapper = (...args) => {
      Asyncify.exportCallStack.push(original);
      try {
        return original(...args);
      } finally {
        if (!ABORT) {
          var top = Asyncify.exportCallStack.pop();
          Asyncify.maybeStopUnwind();
        }
      }
    };
    Asyncify.funcWrappers.set(original, wrapper);
    return wrapper;
  },
  instrumentWasmExports(exports) {
    var ret = {};
    for (let [x, original] of Object.entries(exports)) {
      if (typeof original == "function") {
        var wrapper = Asyncify.instrumentFunction(original);
        ret[x] = wrapper;
      } else {
        ret[x] = original;
      }
    }
    return ret;
  },
  State: {
    Normal: 0,
    Unwinding: 1,
    Rewinding: 2,
    Disabled: 3
  },
  state: 0,
  StackSize: 8192,
  currData: null,
  handleSleepReturnValue: 0,
  exportCallStack: [],
  callstackFuncToId: new Map,
  callStackIdToFunc: new Map,
  funcWrappers: new Map,
  callStackId: 0,
  asyncPromiseHandlers: null,
  sleepCallbacks: [],
  getCallStackId(func) {
    if (!Asyncify.callstackFuncToId.has(func)) {
      var id = Asyncify.callStackId++;
      Asyncify.callstackFuncToId.set(func, id);
      Asyncify.callStackIdToFunc.set(id, func);
    }
    return Asyncify.callstackFuncToId.get(func);
  },
  maybeStopUnwind() {
    if (Asyncify.currData && Asyncify.state === Asyncify.State.Unwinding && Asyncify.exportCallStack.length === 0) {
      // We just finished unwinding.
      // Be sure to set the state before calling any other functions to avoid
      // possible infinite recursion here (For example in debug pthread builds
      // the dbg() function itself can call back into WebAssembly to get the
      // current pthread_self() pointer).
      Asyncify.state = Asyncify.State.Normal;
      runtimeKeepalivePush();
      // Keep the runtime alive so that a re-wind can be done later.
      runAndAbortIfError(_asyncify_stop_unwind);
      if (typeof Fibers != "undefined") {
        Fibers.trampoline();
      }
    }
  },
  whenDone() {
    return new Promise((resolve, reject) => {
      Asyncify.asyncPromiseHandlers = {
        resolve,
        reject
      };
    });
  },
  allocateData() {
    // An asyncify data structure has three fields:
    //  0  current stack pos
    //  4  max stack pos
    //  8  id of function at bottom of the call stack (callStackIdToFunc[id] == wasm func)
    // The Asyncify ABI only interprets the first two fields, the rest is for the runtime.
    // We also embed a stack in the same memory region here, right next to the structure.
    // This struct is also defined as asyncify_data_t in emscripten/fiber.h
    var ptr = _malloc(12 + Asyncify.StackSize);
    Asyncify.setDataHeader(ptr, ptr + 12, Asyncify.StackSize);
    Asyncify.setDataRewindFunc(ptr);
    return ptr;
  },
  setDataHeader(ptr, stack, stackSize) {
    HEAPU32[((ptr) >> 2)] = stack;
    HEAPU32[(((ptr) + (4)) >> 2)] = stack + stackSize;
  },
  setDataRewindFunc(ptr) {
    var bottomOfCallStack = Asyncify.exportCallStack[0];
    var rewindId = Asyncify.getCallStackId(bottomOfCallStack);
    HEAP32[(((ptr) + (8)) >> 2)] = rewindId;
  },
  getDataRewindFunc(ptr) {
    var id = HEAP32[(((ptr) + (8)) >> 2)];
    var func = Asyncify.callStackIdToFunc.get(id);
    return func;
  },
  doRewind(ptr) {
    var original = Asyncify.getDataRewindFunc(ptr);
    var func = Asyncify.funcWrappers.get(original);
    // Once we have rewound and the stack we no longer need to artificially
    // keep the runtime alive.
    runtimeKeepalivePop();
    return callUserCallback(func);
  },
  handleSleep(startAsync) {
    if (ABORT) return;
    if (Asyncify.state === Asyncify.State.Normal) {
      // Prepare to sleep. Call startAsync, and see what happens:
      // if the code decided to call our callback synchronously,
      // then no async operation was in fact begun, and we don't
      // need to do anything.
      var reachedCallback = false;
      var reachedAfterCallback = false;
      startAsync((handleSleepReturnValue = 0) => {
        if (ABORT) return;
        Asyncify.handleSleepReturnValue = handleSleepReturnValue;
        reachedCallback = true;
        if (!reachedAfterCallback) {
          // We are happening synchronously, so no need for async.
          return;
        }
        Asyncify.state = Asyncify.State.Rewinding;
        runAndAbortIfError(() => _asyncify_start_rewind(Asyncify.currData));
        if (typeof MainLoop != "undefined" && MainLoop.func) {
          MainLoop.resume();
        }
        var asyncWasmReturnValue, isError = false;
        try {
          asyncWasmReturnValue = Asyncify.doRewind(Asyncify.currData);
        } catch (err) {
          asyncWasmReturnValue = err;
          isError = true;
        }
        // Track whether the return value was handled by any promise handlers.
        var handled = false;
        if (!Asyncify.currData) {
          // All asynchronous execution has finished.
          // `asyncWasmReturnValue` now contains the final
          // return value of the exported async WASM function.
          // Note: `asyncWasmReturnValue` is distinct from
          // `Asyncify.handleSleepReturnValue`.
          // `Asyncify.handleSleepReturnValue` contains the return
          // value of the last C function to have executed
          // `Asyncify.handleSleep()`, whereas `asyncWasmReturnValue`
          // contains the return value of the exported WASM function
          // that may have called C functions that
          // call `Asyncify.handleSleep()`.
          var asyncPromiseHandlers = Asyncify.asyncPromiseHandlers;
          if (asyncPromiseHandlers) {
            Asyncify.asyncPromiseHandlers = null;
            (isError ? asyncPromiseHandlers.reject : asyncPromiseHandlers.resolve)(asyncWasmReturnValue);
            handled = true;
          }
        }
        if (isError && !handled) {
          // If there was an error and it was not handled by now, we have no choice but to
          // rethrow that error into the global scope where it can be caught only by
          // `onerror` or `onunhandledpromiserejection`.
          throw asyncWasmReturnValue;
        }
      });
      reachedAfterCallback = true;
      if (!reachedCallback) {
        // A true async operation was begun; start a sleep.
        Asyncify.state = Asyncify.State.Unwinding;
        // TODO: reuse, don't alloc/free every sleep
        Asyncify.currData = Asyncify.allocateData();
        if (typeof MainLoop != "undefined" && MainLoop.func) {
          MainLoop.pause();
        }
        runAndAbortIfError(() => _asyncify_start_unwind(Asyncify.currData));
      }
    } else if (Asyncify.state === Asyncify.State.Rewinding) {
      // Stop a resume.
      Asyncify.state = Asyncify.State.Normal;
      runAndAbortIfError(_asyncify_stop_rewind);
      _free(Asyncify.currData);
      Asyncify.currData = null;
      // Call all sleep callbacks now that the sleep-resume is all done.
      Asyncify.sleepCallbacks.forEach(callUserCallback);
    } else {
      abort(`invalid state: ${Asyncify.state}`);
    }
    return Asyncify.handleSleepReturnValue;
  },
  handleAsync: startAsync => Asyncify.handleSleep(async wakeUp => {
    // TODO: add error handling as a second param when handleSleep implements it.
    wakeUp(await startAsync());
  })
};

let emglken_files = {};

const encoder = new TextEncoder;

// End JS library code
// include: postlibrary.js
// This file is included after the automatically-generated JS library code
// but before the wasm module is created.
{
  // Begin ATMODULES hooks
  if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
}

// Begin runtime exports
// End runtime exports
// Begin JS library exports
// End JS library exports
// end include: postlibrary.js
// Imports from the Wasm binary.
var _malloc, _free, _main, ___funcs_on_exit, _fflush, __emscripten_timeout, _setThrew, __emscripten_stack_alloc, dynCall_iii, dynCall_vii, dynCall_vi, dynCall_iiii, dynCall_viiii, dynCall_ii, dynCall_jiji, dynCall_iidiiii, _asyncify_start_unwind, _asyncify_stop_unwind, _asyncify_start_rewind, _asyncify_stop_rewind, memory, __indirect_function_table, wasmMemory;

function assignWasmExports(wasmExports) {
  _malloc = wasmExports["C"];
  _free = wasmExports["D"];
  _main = Module["_main"] = wasmExports["E"];
  ___funcs_on_exit = wasmExports["F"];
  _fflush = wasmExports["G"];
  __emscripten_timeout = wasmExports["H"];
  _setThrew = Module["_setThrew"] = wasmExports["I"];
  __emscripten_stack_alloc = wasmExports["J"];
  dynCall_iii = dynCalls["iii"] = wasmExports["K"];
  dynCall_vii = dynCalls["vii"] = wasmExports["L"];
  dynCall_vi = dynCalls["vi"] = wasmExports["M"];
  dynCall_iiii = dynCalls["iiii"] = wasmExports["N"];
  dynCall_viiii = dynCalls["viiii"] = wasmExports["O"];
  dynCall_ii = dynCalls["ii"] = wasmExports["P"];
  dynCall_jiji = dynCalls["jiji"] = wasmExports["Q"];
  dynCall_iidiiii = dynCalls["iidiiii"] = wasmExports["R"];
  _asyncify_start_unwind = wasmExports["S"];
  _asyncify_stop_unwind = wasmExports["T"];
  _asyncify_start_rewind = wasmExports["U"];
  _asyncify_stop_rewind = wasmExports["V"];
  memory = wasmMemory = wasmExports["A"];
  __indirect_function_table = wasmExports["__indirect_function_table"];
}

var wasmImports = {
  /** @export */ z: ___call_sighandler,
  /** @export */ y: ___syscall_getcwd,
  /** @export */ s: __abort_js,
  /** @export */ r: __emscripten_runtime_keepalive_clear,
  /** @export */ q: __localtime_js,
  /** @export */ p: __setitimer_js,
  /** @export */ o: __tzset_js,
  /** @export */ x: _clock_time_get,
  /** @export */ n: _emglken_file_delete_sync,
  /** @export */ m: _emglken_file_exists,
  /** @export */ d: _emglken_file_flush,
  /** @export */ l: _emglken_file_flush_sync,
  /** @export */ k: _emglken_file_read,
  /** @export */ c: _emglken_file_write_buffer,
  /** @export */ j: _emglken_get_dirs,
  /** @export */ i: _emglken_get_glkote_event,
  /** @export */ b: _emglken_send_glkote_update,
  /** @export */ h: _emglken_set_storyfile_dir,
  /** @export */ g: _emscripten_date_now,
  /** @export */ f: _emscripten_resize_heap,
  /** @export */ w: _environ_get,
  /** @export */ v: _environ_sizes_get,
  /** @export */ e: _exit,
  /** @export */ a: _fd_write,
  /** @export */ u: _proc_exit,
  /** @export */ t: _random_get
};

// include: postamble.js
// === Auto-generated postamble setup entry stuff ===
function callMain(args = []) {
  var entryFunction = _main;
  args.unshift(thisProgram);
  var argc = args.length;
  var argv = stackAlloc((argc + 1) * 4);
  var argv_ptr = argv;
  for (var arg of args) {
    HEAPU32[((argv_ptr) >> 2)] = stringToUTF8OnStack(arg);
    argv_ptr += 4;
  }
  HEAPU32[((argv_ptr) >> 2)] = 0;
  try {
    var ret = entryFunction(argc, argv);
    // if we're not running an evented main loop, it's time to exit
    exitJS(ret, /* implicit = */ true);
    return ret;
  } catch (e) {
    return handleException(e);
  }
}

function run(args = arguments_) {
  preRun();
  function doRun() {
    // run may have just been called through dependencies being fulfilled just in this very frame,
    // or while the async setStatus time below was happening
    Module["calledRun"] = true;
    if (ABORT) return;
    initRuntime();
    preMain();
    readyPromiseResolve?.(Module);
    var noInitialRun = true;
    if (!noInitialRun) callMain(args);
    postRun();
  }
  {
    doRun();
  }
}

var wasmExports;

// In modularize mode the generated code is within a factory function so we
// can use await here (since it's not top-level-await).
wasmExports = await (createWasm());

run();

// end include: postamble.js
// include: postamble_modularize.js
// In MODULARIZE mode we wrap the generated code in a factory function
// and return either the Module itself, or a promise of the module.
// We assign to the `moduleRtn` global here and configure closure to see
// this as an extern so it won't get minified.
if (runtimeInitialized) {
  moduleRtn = Module;
} else {
  // Set up the promise that indicates the Module is initialized
  moduleRtn = new Promise((resolve, reject) => {
    readyPromiseResolve = resolve;
    readyPromiseReject = reject;
  });
}


  return moduleRtn;
}

// Export using a UMD style export, or ES6 exports if selected
export default Module;