free-fx/build/esm/FIXParser.mjs.map

{
  "version": 3,
  "sources": ["../../node_modules/ms/index.js", "../../node_modules/debug/src/common.js", "../../node_modules/debug/src/browser.js", "../../node_modules/has-flag/index.js", "../../node_modules/supports-color/index.js", "../../node_modules/debug/src/node.js", "../../node_modules/debug/src/index.js", "../../node_modules/agent-base/src/promisify.ts", "../../node_modules/agent-base/src/index.ts", "../../node_modules/https-proxy-agent/src/parse-proxy-response.ts", "../../node_modules/https-proxy-agent/src/agent.ts", "../../node_modules/https-proxy-agent/src/index.ts", "../../node_modules/ws/lib/stream.js", "../../node_modules/ws/lib/constants.js", "../../node_modules/ws/lib/buffer-util.js", "../../node_modules/ws/lib/limiter.js", "../../node_modules/ws/lib/permessage-deflate.js", "../../node_modules/ws/lib/validation.js", "../../node_modules/ws/lib/receiver.js", "../../node_modules/ws/lib/sender.js", "../../node_modules/ws/lib/event-target.js", "../../node_modules/ws/lib/extension.js", "../../node_modules/ws/lib/websocket.js", "../../node_modules/ws/lib/subprotocol.js", "../../node_modules/ws/lib/websocket-server.js", "../../src/FIXParser.ts", "../../node_modules/ws/wrapper.mjs", "../../src/fields/Field.ts", "../../src/fieldtypes/index.ts", "../../src/fieldtypes/AllocPositionEffectEnum.ts", "../../src/fieldtypes/EncryptMethodEnum.ts", "../../src/fieldtypes/ExecTypeEnum.ts", "../../src/fieldtypes/FieldEnum.ts", "../../src/fieldtypes/HandlInstEnum.ts", "../../src/fieldtypes/MarketDepthEnum.ts", "../../src/fieldtypes/MDEntryTypeEnum.ts", "../../src/fieldtypes/MDUpdateTypeEnum.ts", "../../src/fieldtypes/MessageEnum.ts", "../../src/fieldtypes/OrderStatusEnum.ts", "../../src/fieldtypes/OrderTypesEnum.ts", "../../src/fieldtypes/SideEnum.ts", "../../src/fieldtypes/SubscriptionRequestTypeEnum.ts", "../../src/fieldtypes/TimeInForceEnum.ts", "../../spec/SpecEnums.ts", "../../src/enums/EnumType.ts", "../../src/enums/Enums.ts", "../../spec/SpecFields.ts", "../../spec/SpecMessages.ts", "../../src/messagecontents/MessageContents.ts", "../../src/messages/Messages.ts", "../../spec/SpecCategories.ts", "../../src/fields/categories/CategoryType.ts", "../../src/fields/categories/Categories.ts", "../../spec/SpecDatatypes.ts", "../../src/fields/datatypes/FieldType.ts", "../../src/fields/datatypes/Datatypes.ts", "../../spec/SpecSections.ts", "../../src/fields/sections/SectionType.ts", "../../src/fields/sections/Sections.ts", "../../src/fields/Fields.ts", "../../src/util/util.ts", "../../src/message/Message.ts", "../../src/FIXParserBase.ts", "../../src/messagetemplates/MessageTemplates.ts", "../../src/session/SessionLogon.ts", "../../src/session/SessionLogout.ts", "../../src/util/MessageBuffer.ts", "../../src/session/SessionResendRequest.ts", "../../src/session/SessionSequenceReset.ts", "../../src/session/SessionTestRequest.ts", "../../src/session/ClientMessageProcessor.ts", "../../src/util/FrameDecoder.ts"],
  "sourcesContent": ["/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar w = d * 7;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n *  - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n  options = options || {};\n  var type = typeof val;\n  if (type === 'string' && val.length > 0) {\n    return parse(val);\n  } else if (type === 'number' && isFinite(val)) {\n    return options.long ? fmtLong(val) : fmtShort(val);\n  }\n  throw new Error(\n    'val is not a non-empty string or a valid number. val=' +\n      JSON.stringify(val)\n  );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n  str = String(str);\n  if (str.length > 100) {\n    return;\n  }\n  var match = /^(-?(?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(\n    str\n  );\n  if (!match) {\n    return;\n  }\n  var n = parseFloat(match[1]);\n  var type = (match[2] || 'ms').toLowerCase();\n  switch (type) {\n    case 'years':\n    case 'year':\n    case 'yrs':\n    case 'yr':\n    case 'y':\n      return n * y;\n    case 'weeks':\n    case 'week':\n    case 'w':\n      return n * w;\n    case 'days':\n    case 'day':\n    case 'd':\n      return n * d;\n    case 'hours':\n    case 'hour':\n    case 'hrs':\n    case 'hr':\n    case 'h':\n      return n * h;\n    case 'minutes':\n    case 'minute':\n    case 'mins':\n    case 'min':\n    case 'm':\n      return n * m;\n    case 'seconds':\n    case 'second':\n    case 'secs':\n    case 'sec':\n    case 's':\n      return n * s;\n    case 'milliseconds':\n    case 'millisecond':\n    case 'msecs':\n    case 'msec':\n    case 'ms':\n      return n;\n    default:\n      return undefined;\n  }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n  var msAbs = Math.abs(ms);\n  if (msAbs >= d) {\n    return Math.round(ms / d) + 'd';\n  }\n  if (msAbs >= h) {\n    return Math.round(ms / h) + 'h';\n  }\n  if (msAbs >= m) {\n    return Math.round(ms / m) + 'm';\n  }\n  if (msAbs >= s) {\n    return Math.round(ms / s) + 's';\n  }\n  return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n  var msAbs = Math.abs(ms);\n  if (msAbs >= d) {\n    return plural(ms, msAbs, d, 'day');\n  }\n  if (msAbs >= h) {\n    return plural(ms, msAbs, h, 'hour');\n  }\n  if (msAbs >= m) {\n    return plural(ms, msAbs, m, 'minute');\n  }\n  if (msAbs >= s) {\n    return plural(ms, msAbs, s, 'second');\n  }\n  return ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, msAbs, n, name) {\n  var isPlural = msAbs >= n * 1.5;\n  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');\n}\n", "\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n */\n\nfunction setup(env) {\n\tcreateDebug.debug = createDebug;\n\tcreateDebug.default = createDebug;\n\tcreateDebug.coerce = coerce;\n\tcreateDebug.disable = disable;\n\tcreateDebug.enable = enable;\n\tcreateDebug.enabled = enabled;\n\tcreateDebug.humanize = require('ms');\n\tcreateDebug.destroy = destroy;\n\n\tObject.keys(env).forEach(key => {\n\t\tcreateDebug[key] = env[key];\n\t});\n\n\t/**\n\t* The currently active debug mode names, and names to skip.\n\t*/\n\n\tcreateDebug.names = [];\n\tcreateDebug.skips = [];\n\n\t/**\n\t* Map of special \"%n\" handling functions, for the debug \"format\" argument.\n\t*\n\t* Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n\t*/\n\tcreateDebug.formatters = {};\n\n\t/**\n\t* Selects a color for a debug namespace\n\t* @param {String} namespace The namespace string for the debug instance to be colored\n\t* @return {Number|String} An ANSI color code for the given namespace\n\t* @api private\n\t*/\n\tfunction selectColor(namespace) {\n\t\tlet hash = 0;\n\n\t\tfor (let i = 0; i < namespace.length; i++) {\n\t\t\thash = ((hash << 5) - hash) + namespace.charCodeAt(i);\n\t\t\thash |= 0; // Convert to 32bit integer\n\t\t}\n\n\t\treturn createDebug.colors[Math.abs(hash) % createDebug.colors.length];\n\t}\n\tcreateDebug.selectColor = selectColor;\n\n\t/**\n\t* Create a debugger with the given `namespace`.\n\t*\n\t* @param {String} namespace\n\t* @return {Function}\n\t* @api public\n\t*/\n\tfunction createDebug(namespace) {\n\t\tlet prevTime;\n\t\tlet enableOverride = null;\n\t\tlet namespacesCache;\n\t\tlet enabledCache;\n\n\t\tfunction debug(...args) {\n\t\t\t// Disabled?\n\t\t\tif (!debug.enabled) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst self = debug;\n\n\t\t\t// Set `diff` timestamp\n\t\t\tconst curr = Number(new Date());\n\t\t\tconst ms = curr - (prevTime || curr);\n\t\t\tself.diff = ms;\n\t\t\tself.prev = prevTime;\n\t\t\tself.curr = curr;\n\t\t\tprevTime = curr;\n\n\t\t\targs[0] = createDebug.coerce(args[0]);\n\n\t\t\tif (typeof args[0] !== 'string') {\n\t\t\t\t// Anything else let's inspect with %O\n\t\t\t\targs.unshift('%O');\n\t\t\t}\n\n\t\t\t// Apply any `formatters` transformations\n\t\t\tlet index = 0;\n\t\t\targs[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {\n\t\t\t\t// If we encounter an escaped % then don't increase the array index\n\t\t\t\tif (match === '%%') {\n\t\t\t\t\treturn '%';\n\t\t\t\t}\n\t\t\t\tindex++;\n\t\t\t\tconst formatter = createDebug.formatters[format];\n\t\t\t\tif (typeof formatter === 'function') {\n\t\t\t\t\tconst val = args[index];\n\t\t\t\t\tmatch = formatter.call(self, val);\n\n\t\t\t\t\t// Now we need to remove `args[index]` since it's inlined in the `format`\n\t\t\t\t\targs.splice(index, 1);\n\t\t\t\t\tindex--;\n\t\t\t\t}\n\t\t\t\treturn match;\n\t\t\t});\n\n\t\t\t// Apply env-specific formatting (colors, etc.)\n\t\t\tcreateDebug.formatArgs.call(self, args);\n\n\t\t\tconst logFn = self.log || createDebug.log;\n\t\t\tlogFn.apply(self, args);\n\t\t}\n\n\t\tdebug.namespace = namespace;\n\t\tdebug.useColors = createDebug.useColors();\n\t\tdebug.color = createDebug.selectColor(namespace);\n\t\tdebug.extend = extend;\n\t\tdebug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.\n\n\t\tObject.defineProperty(debug, 'enabled', {\n\t\t\tenumerable: true,\n\t\t\tconfigurable: false,\n\t\t\tget: () => {\n\t\t\t\tif (enableOverride !== null) {\n\t\t\t\t\treturn enableOverride;\n\t\t\t\t}\n\t\t\t\tif (namespacesCache !== createDebug.namespaces) {\n\t\t\t\t\tnamespacesCache = createDebug.namespaces;\n\t\t\t\t\tenabledCache = createDebug.enabled(namespace);\n\t\t\t\t}\n\n\t\t\t\treturn enabledCache;\n\t\t\t},\n\t\t\tset: v => {\n\t\t\t\tenableOverride = v;\n\t\t\t}\n\t\t});\n\n\t\t// Env-specific initialization logic for debug instances\n\t\tif (typeof createDebug.init === 'function') {\n\t\t\tcreateDebug.init(debug);\n\t\t}\n\n\t\treturn debug;\n\t}\n\n\tfunction extend(namespace, delimiter) {\n\t\tconst newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);\n\t\tnewDebug.log = this.log;\n\t\treturn newDebug;\n\t}\n\n\t/**\n\t* Enables a debug mode by namespaces. This can include modes\n\t* separated by a colon and wildcards.\n\t*\n\t* @param {String} namespaces\n\t* @api public\n\t*/\n\tfunction enable(namespaces) {\n\t\tcreateDebug.save(namespaces);\n\t\tcreateDebug.namespaces = namespaces;\n\n\t\tcreateDebug.names = [];\n\t\tcreateDebug.skips = [];\n\n\t\tlet i;\n\t\tconst split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n\t\tconst len = split.length;\n\n\t\tfor (i = 0; i < len; i++) {\n\t\t\tif (!split[i]) {\n\t\t\t\t// ignore empty strings\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tnamespaces = split[i].replace(/\\*/g, '.*?');\n\n\t\t\tif (namespaces[0] === '-') {\n\t\t\t\tcreateDebug.skips.push(new RegExp('^' + namespaces.slice(1) + '$'));\n\t\t\t} else {\n\t\t\t\tcreateDebug.names.push(new RegExp('^' + namespaces + '$'));\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t* Disable debug output.\n\t*\n\t* @return {String} namespaces\n\t* @api public\n\t*/\n\tfunction disable() {\n\t\tconst namespaces = [\n\t\t\t...createDebug.names.map(toNamespace),\n\t\t\t...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)\n\t\t].join(',');\n\t\tcreateDebug.enable('');\n\t\treturn namespaces;\n\t}\n\n\t/**\n\t* Returns true if the given mode name is enabled, false otherwise.\n\t*\n\t* @param {String} name\n\t* @return {Boolean}\n\t* @api public\n\t*/\n\tfunction enabled(name) {\n\t\tif (name[name.length - 1] === '*') {\n\t\t\treturn true;\n\t\t}\n\n\t\tlet i;\n\t\tlet len;\n\n\t\tfor (i = 0, len = createDebug.skips.length; i < len; i++) {\n\t\t\tif (createDebug.skips[i].test(name)) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\tfor (i = 0, len = createDebug.names.length; i < len; i++) {\n\t\t\tif (createDebug.names[i].test(name)) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t* Convert regexp to namespace\n\t*\n\t* @param {RegExp} regxep\n\t* @return {String} namespace\n\t* @api private\n\t*/\n\tfunction toNamespace(regexp) {\n\t\treturn regexp.toString()\n\t\t\t.substring(2, regexp.toString().length - 2)\n\t\t\t.replace(/\\.\\*\\?$/, '*');\n\t}\n\n\t/**\n\t* Coerce `val`.\n\t*\n\t* @param {Mixed} val\n\t* @return {Mixed}\n\t* @api private\n\t*/\n\tfunction coerce(val) {\n\t\tif (val instanceof Error) {\n\t\t\treturn val.stack || val.message;\n\t\t}\n\t\treturn val;\n\t}\n\n\t/**\n\t* XXX DO NOT USE. This is a temporary stub function.\n\t* XXX It WILL be removed in the next major release.\n\t*/\n\tfunction destroy() {\n\t\tconsole.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');\n\t}\n\n\tcreateDebug.enable(createDebug.load());\n\n\treturn createDebug;\n}\n\nmodule.exports = setup;\n", "/* eslint-env browser */\n\n/**\n * This is the web browser implementation of `debug()`.\n */\n\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = localstorage();\nexports.destroy = (() => {\n\tlet warned = false;\n\n\treturn () => {\n\t\tif (!warned) {\n\t\t\twarned = true;\n\t\t\tconsole.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');\n\t\t}\n\t};\n})();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n\t'#0000CC',\n\t'#0000FF',\n\t'#0033CC',\n\t'#0033FF',\n\t'#0066CC',\n\t'#0066FF',\n\t'#0099CC',\n\t'#0099FF',\n\t'#00CC00',\n\t'#00CC33',\n\t'#00CC66',\n\t'#00CC99',\n\t'#00CCCC',\n\t'#00CCFF',\n\t'#3300CC',\n\t'#3300FF',\n\t'#3333CC',\n\t'#3333FF',\n\t'#3366CC',\n\t'#3366FF',\n\t'#3399CC',\n\t'#3399FF',\n\t'#33CC00',\n\t'#33CC33',\n\t'#33CC66',\n\t'#33CC99',\n\t'#33CCCC',\n\t'#33CCFF',\n\t'#6600CC',\n\t'#6600FF',\n\t'#6633CC',\n\t'#6633FF',\n\t'#66CC00',\n\t'#66CC33',\n\t'#9900CC',\n\t'#9900FF',\n\t'#9933CC',\n\t'#9933FF',\n\t'#99CC00',\n\t'#99CC33',\n\t'#CC0000',\n\t'#CC0033',\n\t'#CC0066',\n\t'#CC0099',\n\t'#CC00CC',\n\t'#CC00FF',\n\t'#CC3300',\n\t'#CC3333',\n\t'#CC3366',\n\t'#CC3399',\n\t'#CC33CC',\n\t'#CC33FF',\n\t'#CC6600',\n\t'#CC6633',\n\t'#CC9900',\n\t'#CC9933',\n\t'#CCCC00',\n\t'#CCCC33',\n\t'#FF0000',\n\t'#FF0033',\n\t'#FF0066',\n\t'#FF0099',\n\t'#FF00CC',\n\t'#FF00FF',\n\t'#FF3300',\n\t'#FF3333',\n\t'#FF3366',\n\t'#FF3399',\n\t'#FF33CC',\n\t'#FF33FF',\n\t'#FF6600',\n\t'#FF6633',\n\t'#FF9900',\n\t'#FF9933',\n\t'#FFCC00',\n\t'#FFCC33'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\n// eslint-disable-next-line complexity\nfunction useColors() {\n\t// NB: In an Electron preload script, document will be defined but not fully\n\t// initialized. Since we know we're in Chrome, we'll just detect this case\n\t// explicitly\n\tif (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {\n\t\treturn true;\n\t}\n\n\t// Internet Explorer and Edge do not support colors.\n\tif (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\\/(\\d+)/)) {\n\t\treturn false;\n\t}\n\n\t// Is webkit? http://stackoverflow.com/a/16459606/376773\n\t// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n\treturn (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n\t\t// Is firebug? http://stackoverflow.com/a/398120/376773\n\t\t(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n\t\t// Is firefox >= v31?\n\t\t// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n\t\t(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n\t\t// Double check webkit in userAgent just in case we are in a worker\n\t\t(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n\targs[0] = (this.useColors ? '%c' : '') +\n\t\tthis.namespace +\n\t\t(this.useColors ? ' %c' : ' ') +\n\t\targs[0] +\n\t\t(this.useColors ? '%c ' : ' ') +\n\t\t'+' + module.exports.humanize(this.diff);\n\n\tif (!this.useColors) {\n\t\treturn;\n\t}\n\n\tconst c = 'color: ' + this.color;\n\targs.splice(1, 0, c, 'color: inherit');\n\n\t// The final \"%c\" is somewhat tricky, because there could be other\n\t// arguments passed either before or after the %c, so we need to\n\t// figure out the correct index to insert the CSS into\n\tlet index = 0;\n\tlet lastC = 0;\n\targs[0].replace(/%[a-zA-Z%]/g, match => {\n\t\tif (match === '%%') {\n\t\t\treturn;\n\t\t}\n\t\tindex++;\n\t\tif (match === '%c') {\n\t\t\t// We only are interested in the *last* %c\n\t\t\t// (the user may have provided their own)\n\t\t\tlastC = index;\n\t\t}\n\t});\n\n\targs.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.debug()` when available.\n * No-op when `console.debug` is not a \"function\".\n * If `console.debug` is not available, falls back\n * to `console.log`.\n *\n * @api public\n */\nexports.log = console.debug || console.log || (() => {});\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\nfunction save(namespaces) {\n\ttry {\n\t\tif (namespaces) {\n\t\t\texports.storage.setItem('debug', namespaces);\n\t\t} else {\n\t\t\texports.storage.removeItem('debug');\n\t\t}\n\t} catch (error) {\n\t\t// Swallow\n\t\t// XXX (@Qix-) should we be logging these?\n\t}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\nfunction load() {\n\tlet r;\n\ttry {\n\t\tr = exports.storage.getItem('debug');\n\t} catch (error) {\n\t\t// Swallow\n\t\t// XXX (@Qix-) should we be logging these?\n\t}\n\n\t// If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n\tif (!r && typeof process !== 'undefined' && 'env' in process) {\n\t\tr = process.env.DEBUG;\n\t}\n\n\treturn r;\n}\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n\ttry {\n\t\t// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context\n\t\t// The Browser also has localStorage in the global context.\n\t\treturn localStorage;\n\t} catch (error) {\n\t\t// Swallow\n\t\t// XXX (@Qix-) should we be logging these?\n\t}\n}\n\nmodule.exports = require('./common')(exports);\n\nconst {formatters} = module.exports;\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nformatters.j = function (v) {\n\ttry {\n\t\treturn JSON.stringify(v);\n\t} catch (error) {\n\t\treturn '[UnexpectedJSONParseError]: ' + error.message;\n\t}\n};\n", "'use strict';\nmodule.exports = (flag, argv) => {\n\targv = argv || process.argv;\n\tconst prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');\n\tconst pos = argv.indexOf(prefix + flag);\n\tconst terminatorPos = argv.indexOf('--');\n\treturn pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);\n};\n", "'use strict';\nconst os = require('os');\nconst hasFlag = require('has-flag');\n\nconst env = process.env;\n\nlet forceColor;\nif (hasFlag('no-color') ||\n\thasFlag('no-colors') ||\n\thasFlag('color=false')) {\n\tforceColor = false;\n} else if (hasFlag('color') ||\n\thasFlag('colors') ||\n\thasFlag('color=true') ||\n\thasFlag('color=always')) {\n\tforceColor = true;\n}\nif ('FORCE_COLOR' in env) {\n\tforceColor = env.FORCE_COLOR.length === 0 || parseInt(env.FORCE_COLOR, 10) !== 0;\n}\n\nfunction translateLevel(level) {\n\tif (level === 0) {\n\t\treturn false;\n\t}\n\n\treturn {\n\t\tlevel,\n\t\thasBasic: true,\n\t\thas256: level >= 2,\n\t\thas16m: level >= 3\n\t};\n}\n\nfunction supportsColor(stream) {\n\tif (forceColor === false) {\n\t\treturn 0;\n\t}\n\n\tif (hasFlag('color=16m') ||\n\t\thasFlag('color=full') ||\n\t\thasFlag('color=truecolor')) {\n\t\treturn 3;\n\t}\n\n\tif (hasFlag('color=256')) {\n\t\treturn 2;\n\t}\n\n\tif (stream && !stream.isTTY && forceColor !== true) {\n\t\treturn 0;\n\t}\n\n\tconst min = forceColor ? 1 : 0;\n\n\tif (process.platform === 'win32') {\n\t\t// Node.js 7.5.0 is the first version of Node.js to include a patch to\n\t\t// libuv that enables 256 color output on Windows. Anything earlier and it\n\t\t// won't work. However, here we target Node.js 8 at minimum as it is an LTS\n\t\t// release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows\n\t\t// release that supports 256 colors. Windows 10 build 14931 is the first release\n\t\t// that supports 16m/TrueColor.\n\t\tconst osRelease = os.release().split('.');\n\t\tif (\n\t\t\tNumber(process.versions.node.split('.')[0]) >= 8 &&\n\t\t\tNumber(osRelease[0]) >= 10 &&\n\t\t\tNumber(osRelease[2]) >= 10586\n\t\t) {\n\t\t\treturn Number(osRelease[2]) >= 14931 ? 3 : 2;\n\t\t}\n\n\t\treturn 1;\n\t}\n\n\tif ('CI' in env) {\n\t\tif (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') {\n\t\t\treturn 1;\n\t\t}\n\n\t\treturn min;\n\t}\n\n\tif ('TEAMCITY_VERSION' in env) {\n\t\treturn /^(9\\.(0*[1-9]\\d*)\\.|\\d{2,}\\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0;\n\t}\n\n\tif (env.COLORTERM === 'truecolor') {\n\t\treturn 3;\n\t}\n\n\tif ('TERM_PROGRAM' in env) {\n\t\tconst version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);\n\n\t\tswitch (env.TERM_PROGRAM) {\n\t\t\tcase 'iTerm.app':\n\t\t\t\treturn version >= 3 ? 3 : 2;\n\t\t\tcase 'Apple_Terminal':\n\t\t\t\treturn 2;\n\t\t\t// No default\n\t\t}\n\t}\n\n\tif (/-256(color)?$/i.test(env.TERM)) {\n\t\treturn 2;\n\t}\n\n\tif (/^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {\n\t\treturn 1;\n\t}\n\n\tif ('COLORTERM' in env) {\n\t\treturn 1;\n\t}\n\n\tif (env.TERM === 'dumb') {\n\t\treturn min;\n\t}\n\n\treturn min;\n}\n\nfunction getSupportLevel(stream) {\n\tconst level = supportsColor(stream);\n\treturn translateLevel(level);\n}\n\nmodule.exports = {\n\tsupportsColor: getSupportLevel,\n\tstdout: getSupportLevel(process.stdout),\n\tstderr: getSupportLevel(process.stderr)\n};\n", "/**\n * Module dependencies.\n */\n\nconst tty = require('tty');\nconst util = require('util');\n\n/**\n * This is the Node.js implementation of `debug()`.\n */\n\nexports.init = init;\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.destroy = util.deprecate(\n\t() => {},\n\t'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'\n);\n\n/**\n * Colors.\n */\n\nexports.colors = [6, 2, 3, 4, 5, 1];\n\ntry {\n\t// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)\n\t// eslint-disable-next-line import/no-extraneous-dependencies\n\tconst supportsColor = require('supports-color');\n\n\tif (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {\n\t\texports.colors = [\n\t\t\t20,\n\t\t\t21,\n\t\t\t26,\n\t\t\t27,\n\t\t\t32,\n\t\t\t33,\n\t\t\t38,\n\t\t\t39,\n\t\t\t40,\n\t\t\t41,\n\t\t\t42,\n\t\t\t43,\n\t\t\t44,\n\t\t\t45,\n\t\t\t56,\n\t\t\t57,\n\t\t\t62,\n\t\t\t63,\n\t\t\t68,\n\t\t\t69,\n\t\t\t74,\n\t\t\t75,\n\t\t\t76,\n\t\t\t77,\n\t\t\t78,\n\t\t\t79,\n\t\t\t80,\n\t\t\t81,\n\t\t\t92,\n\t\t\t93,\n\t\t\t98,\n\t\t\t99,\n\t\t\t112,\n\t\t\t113,\n\t\t\t128,\n\t\t\t129,\n\t\t\t134,\n\t\t\t135,\n\t\t\t148,\n\t\t\t149,\n\t\t\t160,\n\t\t\t161,\n\t\t\t162,\n\t\t\t163,\n\t\t\t164,\n\t\t\t165,\n\t\t\t166,\n\t\t\t167,\n\t\t\t168,\n\t\t\t169,\n\t\t\t170,\n\t\t\t171,\n\t\t\t172,\n\t\t\t173,\n\t\t\t178,\n\t\t\t179,\n\t\t\t184,\n\t\t\t185,\n\t\t\t196,\n\t\t\t197,\n\t\t\t198,\n\t\t\t199,\n\t\t\t200,\n\t\t\t201,\n\t\t\t202,\n\t\t\t203,\n\t\t\t204,\n\t\t\t205,\n\t\t\t206,\n\t\t\t207,\n\t\t\t208,\n\t\t\t209,\n\t\t\t214,\n\t\t\t215,\n\t\t\t220,\n\t\t\t221\n\t\t];\n\t}\n} catch (error) {\n\t// Swallow - we only care if `supports-color` is available; it doesn't have to be.\n}\n\n/**\n * Build up the default `inspectOpts` object from the environment variables.\n *\n *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js\n */\n\nexports.inspectOpts = Object.keys(process.env).filter(key => {\n\treturn /^debug_/i.test(key);\n}).reduce((obj, key) => {\n\t// Camel-case\n\tconst prop = key\n\t\t.substring(6)\n\t\t.toLowerCase()\n\t\t.replace(/_([a-z])/g, (_, k) => {\n\t\t\treturn k.toUpperCase();\n\t\t});\n\n\t// Coerce string value into JS value\n\tlet val = process.env[key];\n\tif (/^(yes|on|true|enabled)$/i.test(val)) {\n\t\tval = true;\n\t} else if (/^(no|off|false|disabled)$/i.test(val)) {\n\t\tval = false;\n\t} else if (val === 'null') {\n\t\tval = null;\n\t} else {\n\t\tval = Number(val);\n\t}\n\n\tobj[prop] = val;\n\treturn obj;\n}, {});\n\n/**\n * Is stdout a TTY? Colored output is enabled when `true`.\n */\n\nfunction useColors() {\n\treturn 'colors' in exports.inspectOpts ?\n\t\tBoolean(exports.inspectOpts.colors) :\n\t\ttty.isatty(process.stderr.fd);\n}\n\n/**\n * Adds ANSI color escape codes if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n\tconst {namespace: name, useColors} = this;\n\n\tif (useColors) {\n\t\tconst c = this.color;\n\t\tconst colorCode = '\\u001B[3' + (c < 8 ? c : '8;5;' + c);\n\t\tconst prefix = `  ${colorCode};1m${name} \\u001B[0m`;\n\n\t\targs[0] = prefix + args[0].split('\\n').join('\\n' + prefix);\n\t\targs.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\\u001B[0m');\n\t} else {\n\t\targs[0] = getDate() + name + ' ' + args[0];\n\t}\n}\n\nfunction getDate() {\n\tif (exports.inspectOpts.hideDate) {\n\t\treturn '';\n\t}\n\treturn new Date().toISOString() + ' ';\n}\n\n/**\n * Invokes `util.format()` with the specified arguments and writes to stderr.\n */\n\nfunction log(...args) {\n\treturn process.stderr.write(util.format(...args) + '\\n');\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\nfunction save(namespaces) {\n\tif (namespaces) {\n\t\tprocess.env.DEBUG = namespaces;\n\t} else {\n\t\t// If you set a process.env field to null or undefined, it gets cast to the\n\t\t// string 'null' or 'undefined'. Just delete instead.\n\t\tdelete process.env.DEBUG;\n\t}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n\treturn process.env.DEBUG;\n}\n\n/**\n * Init logic for `debug` instances.\n *\n * Create a new `inspectOpts` object in case `useColors` is set\n * differently for a particular `debug` instance.\n */\n\nfunction init(debug) {\n\tdebug.inspectOpts = {};\n\n\tconst keys = Object.keys(exports.inspectOpts);\n\tfor (let i = 0; i < keys.length; i++) {\n\t\tdebug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];\n\t}\n}\n\nmodule.exports = require('./common')(exports);\n\nconst {formatters} = module.exports;\n\n/**\n * Map %o to `util.inspect()`, all on a single line.\n */\n\nformatters.o = function (v) {\n\tthis.inspectOpts.colors = this.useColors;\n\treturn util.inspect(v, this.inspectOpts)\n\t\t.split('\\n')\n\t\t.map(str => str.trim())\n\t\t.join(' ');\n};\n\n/**\n * Map %O to `util.inspect()`, allowing multiple lines if needed.\n */\n\nformatters.O = function (v) {\n\tthis.inspectOpts.colors = this.useColors;\n\treturn util.inspect(v, this.inspectOpts);\n};\n", "/**\n * Detect Electron renderer / nwjs process, which is node, but we should\n * treat as a browser.\n */\n\nif (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {\n\tmodule.exports = require('./browser.js');\n} else {\n\tmodule.exports = require('./node.js');\n}\n", null, null, null, null, null, "'use strict';\n\nconst { Duplex } = require('stream');\n\n/**\n * Emits the `'close'` event on a stream.\n *\n * @param {Duplex} stream The stream.\n * @private\n */\nfunction emitClose(stream) {\n  stream.emit('close');\n}\n\n/**\n * The listener of the `'end'` event.\n *\n * @private\n */\nfunction duplexOnEnd() {\n  if (!this.destroyed && this._writableState.finished) {\n    this.destroy();\n  }\n}\n\n/**\n * The listener of the `'error'` event.\n *\n * @param {Error} err The error\n * @private\n */\nfunction duplexOnError(err) {\n  this.removeListener('error', duplexOnError);\n  this.destroy();\n  if (this.listenerCount('error') === 0) {\n    // Do not suppress the throwing behavior.\n    this.emit('error', err);\n  }\n}\n\n/**\n * Wraps a `WebSocket` in a duplex stream.\n *\n * @param {WebSocket} ws The `WebSocket` to wrap\n * @param {Object} [options] The options for the `Duplex` constructor\n * @return {Duplex} The duplex stream\n * @public\n */\nfunction createWebSocketStream(ws, options) {\n  let terminateOnDestroy = true;\n\n  const duplex = new Duplex({\n    ...options,\n    autoDestroy: false,\n    emitClose: false,\n    objectMode: false,\n    writableObjectMode: false\n  });\n\n  ws.on('message', function message(msg, isBinary) {\n    const data =\n      !isBinary && duplex._readableState.objectMode ? msg.toString() : msg;\n\n    if (!duplex.push(data)) ws.pause();\n  });\n\n  ws.once('error', function error(err) {\n    if (duplex.destroyed) return;\n\n    // Prevent `ws.terminate()` from being called by `duplex._destroy()`.\n    //\n    // - If the `'error'` event is emitted before the `'open'` event, then\n    //   `ws.terminate()` is a noop as no socket is assigned.\n    // - Otherwise, the error is re-emitted by the listener of the `'error'`\n    //   event of the `Receiver` object. The listener already closes the\n    //   connection by calling `ws.close()`. This allows a close frame to be\n    //   sent to the other peer. If `ws.terminate()` is called right after this,\n    //   then the close frame might not be sent.\n    terminateOnDestroy = false;\n    duplex.destroy(err);\n  });\n\n  ws.once('close', function close() {\n    if (duplex.destroyed) return;\n\n    duplex.push(null);\n  });\n\n  duplex._destroy = function (err, callback) {\n    if (ws.readyState === ws.CLOSED) {\n      callback(err);\n      process.nextTick(emitClose, duplex);\n      return;\n    }\n\n    let called = false;\n\n    ws.once('error', function error(err) {\n      called = true;\n      callback(err);\n    });\n\n    ws.once('close', function close() {\n      if (!called) callback(err);\n      process.nextTick(emitClose, duplex);\n    });\n\n    if (terminateOnDestroy) ws.terminate();\n  };\n\n  duplex._final = function (callback) {\n    if (ws.readyState === ws.CONNECTING) {\n      ws.once('open', function open() {\n        duplex._final(callback);\n      });\n      return;\n    }\n\n    // If the value of the `_socket` property is `null` it means that `ws` is a\n    // client websocket and the handshake failed. In fact, when this happens, a\n    // socket is never assigned to the websocket. Wait for the `'error'` event\n    // that will be emitted by the websocket.\n    if (ws._socket === null) return;\n\n    if (ws._socket._writableState.finished) {\n      callback();\n      if (duplex._readableState.endEmitted) duplex.destroy();\n    } else {\n      ws._socket.once('finish', function finish() {\n        // `duplex` is not destroyed here because the `'end'` event will be\n        // emitted on `duplex` after this `'finish'` event. The EOF signaling\n        // `null` chunk is, in fact, pushed when the websocket emits `'close'`.\n        callback();\n      });\n      ws.close();\n    }\n  };\n\n  duplex._read = function () {\n    if (ws.isPaused) ws.resume();\n  };\n\n  duplex._write = function (chunk, encoding, callback) {\n    if (ws.readyState === ws.CONNECTING) {\n      ws.once('open', function open() {\n        duplex._write(chunk, encoding, callback);\n      });\n      return;\n    }\n\n    ws.send(chunk, callback);\n  };\n\n  duplex.on('end', duplexOnEnd);\n  duplex.on('error', duplexOnError);\n  return duplex;\n}\n\nmodule.exports = createWebSocketStream;\n", "'use strict';\n\nmodule.exports = {\n  BINARY_TYPES: ['nodebuffer', 'arraybuffer', 'fragments'],\n  EMPTY_BUFFER: Buffer.alloc(0),\n  GUID: '258EAFA5-E914-47DA-95CA-C5AB0DC85B11',\n  kForOnEventAttribute: Symbol('kIsForOnEventAttribute'),\n  kListener: Symbol('kListener'),\n  kStatusCode: Symbol('status-code'),\n  kWebSocket: Symbol('websocket'),\n  NOOP: () => {}\n};\n", "'use strict';\n\nconst { EMPTY_BUFFER } = require('./constants');\n\n/**\n * Merges an array of buffers into a new buffer.\n *\n * @param {Buffer[]} list The array of buffers to concat\n * @param {Number} totalLength The total length of buffers in the list\n * @return {Buffer} The resulting buffer\n * @public\n */\nfunction concat(list, totalLength) {\n  if (list.length === 0) return EMPTY_BUFFER;\n  if (list.length === 1) return list[0];\n\n  const target = Buffer.allocUnsafe(totalLength);\n  let offset = 0;\n\n  for (let i = 0; i < list.length; i++) {\n    const buf = list[i];\n    target.set(buf, offset);\n    offset += buf.length;\n  }\n\n  if (offset < totalLength) return target.slice(0, offset);\n\n  return target;\n}\n\n/**\n * Masks a buffer using the given mask.\n *\n * @param {Buffer} source The buffer to mask\n * @param {Buffer} mask The mask to use\n * @param {Buffer} output The buffer where to store the result\n * @param {Number} offset The offset at which to start writing\n * @param {Number} length The number of bytes to mask.\n * @public\n */\nfunction _mask(source, mask, output, offset, length) {\n  for (let i = 0; i < length; i++) {\n    output[offset + i] = source[i] ^ mask[i & 3];\n  }\n}\n\n/**\n * Unmasks a buffer using the given mask.\n *\n * @param {Buffer} buffer The buffer to unmask\n * @param {Buffer} mask The mask to use\n * @public\n */\nfunction _unmask(buffer, mask) {\n  for (let i = 0; i < buffer.length; i++) {\n    buffer[i] ^= mask[i & 3];\n  }\n}\n\n/**\n * Converts a buffer to an `ArrayBuffer`.\n *\n * @param {Buffer} buf The buffer to convert\n * @return {ArrayBuffer} Converted buffer\n * @public\n */\nfunction toArrayBuffer(buf) {\n  if (buf.byteLength === buf.buffer.byteLength) {\n    return buf.buffer;\n  }\n\n  return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);\n}\n\n/**\n * Converts `data` to a `Buffer`.\n *\n * @param {*} data The data to convert\n * @return {Buffer} The buffer\n * @throws {TypeError}\n * @public\n */\nfunction toBuffer(data) {\n  toBuffer.readOnly = true;\n\n  if (Buffer.isBuffer(data)) return data;\n\n  let buf;\n\n  if (data instanceof ArrayBuffer) {\n    buf = Buffer.from(data);\n  } else if (ArrayBuffer.isView(data)) {\n    buf = Buffer.from(data.buffer, data.byteOffset, data.byteLength);\n  } else {\n    buf = Buffer.from(data);\n    toBuffer.readOnly = false;\n  }\n\n  return buf;\n}\n\nmodule.exports = {\n  concat,\n  mask: _mask,\n  toArrayBuffer,\n  toBuffer,\n  unmask: _unmask\n};\n\n/* istanbul ignore else  */\nif (!process.env.WS_NO_BUFFER_UTIL) {\n  try {\n    const bufferUtil = require('bufferutil');\n\n    module.exports.mask = function (source, mask, output, offset, length) {\n      if (length < 48) _mask(source, mask, output, offset, length);\n      else bufferUtil.mask(source, mask, output, offset, length);\n    };\n\n    module.exports.unmask = function (buffer, mask) {\n      if (buffer.length < 32) _unmask(buffer, mask);\n      else bufferUtil.unmask(buffer, mask);\n    };\n  } catch (e) {\n    // Continue regardless of the error.\n  }\n}\n", "'use strict';\n\nconst kDone = Symbol('kDone');\nconst kRun = Symbol('kRun');\n\n/**\n * A very simple job queue with adjustable concurrency. Adapted from\n * https://github.com/STRML/async-limiter\n */\nclass Limiter {\n  /**\n   * Creates a new `Limiter`.\n   *\n   * @param {Number} [concurrency=Infinity] The maximum number of jobs allowed\n   *     to run concurrently\n   */\n  constructor(concurrency) {\n    this[kDone] = () => {\n      this.pending--;\n      this[kRun]();\n    };\n    this.concurrency = concurrency || Infinity;\n    this.jobs = [];\n    this.pending = 0;\n  }\n\n  /**\n   * Adds a job to the queue.\n   *\n   * @param {Function} job The job to run\n   * @public\n   */\n  add(job) {\n    this.jobs.push(job);\n    this[kRun]();\n  }\n\n  /**\n   * Removes a job from the queue and runs it if possible.\n   *\n   * @private\n   */\n  [kRun]() {\n    if (this.pending === this.concurrency) return;\n\n    if (this.jobs.length) {\n      const job = this.jobs.shift();\n\n      this.pending++;\n      job(this[kDone]);\n    }\n  }\n}\n\nmodule.exports = Limiter;\n", "'use strict';\n\nconst zlib = require('zlib');\n\nconst bufferUtil = require('./buffer-util');\nconst Limiter = require('./limiter');\nconst { kStatusCode } = require('./constants');\n\nconst TRAILER = Buffer.from([0x00, 0x00, 0xff, 0xff]);\nconst kPerMessageDeflate = Symbol('permessage-deflate');\nconst kTotalLength = Symbol('total-length');\nconst kCallback = Symbol('callback');\nconst kBuffers = Symbol('buffers');\nconst kError = Symbol('error');\n\n//\n// We limit zlib concurrency, which prevents severe memory fragmentation\n// as documented in https://github.com/nodejs/node/issues/8871#issuecomment-250915913\n// and https://github.com/websockets/ws/issues/1202\n//\n// Intentionally global; it's the global thread pool that's an issue.\n//\nlet zlibLimiter;\n\n/**\n * permessage-deflate implementation.\n */\nclass PerMessageDeflate {\n  /**\n   * Creates a PerMessageDeflate instance.\n   *\n   * @param {Object} [options] Configuration options\n   * @param {(Boolean|Number)} [options.clientMaxWindowBits] Advertise support\n   *     for, or request, a custom client window size\n   * @param {Boolean} [options.clientNoContextTakeover=false] Advertise/\n   *     acknowledge disabling of client context takeover\n   * @param {Number} [options.concurrencyLimit=10] The number of concurrent\n   *     calls to zlib\n   * @param {(Boolean|Number)} [options.serverMaxWindowBits] Request/confirm the\n   *     use of a custom server window size\n   * @param {Boolean} [options.serverNoContextTakeover=false] Request/accept\n   *     disabling of server context takeover\n   * @param {Number} [options.threshold=1024] Size (in bytes) below which\n   *     messages should not be compressed if context takeover is disabled\n   * @param {Object} [options.zlibDeflateOptions] Options to pass to zlib on\n   *     deflate\n   * @param {Object} [options.zlibInflateOptions] Options to pass to zlib on\n   *     inflate\n   * @param {Boolean} [isServer=false] Create the instance in either server or\n   *     client mode\n   * @param {Number} [maxPayload=0] The maximum allowed message length\n   */\n  constructor(options, isServer, maxPayload) {\n    this._maxPayload = maxPayload | 0;\n    this._options = options || {};\n    this._threshold =\n      this._options.threshold !== undefined ? this._options.threshold : 1024;\n    this._isServer = !!isServer;\n    this._deflate = null;\n    this._inflate = null;\n\n    this.params = null;\n\n    if (!zlibLimiter) {\n      const concurrency =\n        this._options.concurrencyLimit !== undefined\n          ? this._options.concurrencyLimit\n          : 10;\n      zlibLimiter = new Limiter(concurrency);\n    }\n  }\n\n  /**\n   * @type {String}\n   */\n  static get extensionName() {\n    return 'permessage-deflate';\n  }\n\n  /**\n   * Create an extension negotiation offer.\n   *\n   * @return {Object} Extension parameters\n   * @public\n   */\n  offer() {\n    const params = {};\n\n    if (this._options.serverNoContextTakeover) {\n      params.server_no_context_takeover = true;\n    }\n    if (this._options.clientNoContextTakeover) {\n      params.client_no_context_takeover = true;\n    }\n    if (this._options.serverMaxWindowBits) {\n      params.server_max_window_bits = this._options.serverMaxWindowBits;\n    }\n    if (this._options.clientMaxWindowBits) {\n      params.client_max_window_bits = this._options.clientMaxWindowBits;\n    } else if (this._options.clientMaxWindowBits == null) {\n      params.client_max_window_bits = true;\n    }\n\n    return params;\n  }\n\n  /**\n   * Accept an extension negotiation offer/response.\n   *\n   * @param {Array} configurations The extension negotiation offers/reponse\n   * @return {Object} Accepted configuration\n   * @public\n   */\n  accept(configurations) {\n    configurations = this.normalizeParams(configurations);\n\n    this.params = this._isServer\n      ? this.acceptAsServer(configurations)\n      : this.acceptAsClient(configurations);\n\n    return this.params;\n  }\n\n  /**\n   * Releases all resources used by the extension.\n   *\n   * @public\n   */\n  cleanup() {\n    if (this._inflate) {\n      this._inflate.close();\n      this._inflate = null;\n    }\n\n    if (this._deflate) {\n      const callback = this._deflate[kCallback];\n\n      this._deflate.close();\n      this._deflate = null;\n\n      if (callback) {\n        callback(\n          new Error(\n            'The deflate stream was closed while data was being processed'\n          )\n        );\n      }\n    }\n  }\n\n  /**\n   *  Accept an extension negotiation offer.\n   *\n   * @param {Array} offers The extension negotiation offers\n   * @return {Object} Accepted configuration\n   * @private\n   */\n  acceptAsServer(offers) {\n    const opts = this._options;\n    const accepted = offers.find((params) => {\n      if (\n        (opts.serverNoContextTakeover === false &&\n          params.server_no_context_takeover) ||\n        (params.server_max_window_bits &&\n          (opts.serverMaxWindowBits === false ||\n            (typeof opts.serverMaxWindowBits === 'number' &&\n              opts.serverMaxWindowBits > params.server_max_window_bits))) ||\n        (typeof opts.clientMaxWindowBits === 'number' &&\n          !params.client_max_window_bits)\n      ) {\n        return false;\n      }\n\n      return true;\n    });\n\n    if (!accepted) {\n      throw new Error('None of the extension offers can be accepted');\n    }\n\n    if (opts.serverNoContextTakeover) {\n      accepted.server_no_context_takeover = true;\n    }\n    if (opts.clientNoContextTakeover) {\n      accepted.client_no_context_takeover = true;\n    }\n    if (typeof opts.serverMaxWindowBits === 'number') {\n      accepted.server_max_window_bits = opts.serverMaxWindowBits;\n    }\n    if (typeof opts.clientMaxWindowBits === 'number') {\n      accepted.client_max_window_bits = opts.clientMaxWindowBits;\n    } else if (\n      accepted.client_max_window_bits === true ||\n      opts.clientMaxWindowBits === false\n    ) {\n      delete accepted.client_max_window_bits;\n    }\n\n    return accepted;\n  }\n\n  /**\n   * Accept the extension negotiation response.\n   *\n   * @param {Array} response The extension negotiation response\n   * @return {Object} Accepted configuration\n   * @private\n   */\n  acceptAsClient(response) {\n    const params = response[0];\n\n    if (\n      this._options.clientNoContextTakeover === false &&\n      params.client_no_context_takeover\n    ) {\n      throw new Error('Unexpected parameter \"client_no_context_takeover\"');\n    }\n\n    if (!params.client_max_window_bits) {\n      if (typeof this._options.clientMaxWindowBits === 'number') {\n        params.client_max_window_bits = this._options.clientMaxWindowBits;\n      }\n    } else if (\n      this._options.clientMaxWindowBits === false ||\n      (typeof this._options.clientMaxWindowBits === 'number' &&\n        params.client_max_window_bits > this._options.clientMaxWindowBits)\n    ) {\n      throw new Error(\n        'Unexpected or invalid parameter \"client_max_window_bits\"'\n      );\n    }\n\n    return params;\n  }\n\n  /**\n   * Normalize parameters.\n   *\n   * @param {Array} configurations The extension negotiation offers/reponse\n   * @return {Array} The offers/response with normalized parameters\n   * @private\n   */\n  normalizeParams(configurations) {\n    configurations.forEach((params) => {\n      Object.keys(params).forEach((key) => {\n        let value = params[key];\n\n        if (value.length > 1) {\n          throw new Error(`Parameter \"${key}\" must have only a single value`);\n        }\n\n        value = value[0];\n\n        if (key === 'client_max_window_bits') {\n          if (value !== true) {\n            const num = +value;\n            if (!Number.isInteger(num) || num < 8 || num > 15) {\n              throw new TypeError(\n                `Invalid value for parameter \"${key}\": ${value}`\n              );\n            }\n            value = num;\n          } else if (!this._isServer) {\n            throw new TypeError(\n              `Invalid value for parameter \"${key}\": ${value}`\n            );\n          }\n        } else if (key === 'server_max_window_bits') {\n          const num = +value;\n          if (!Number.isInteger(num) || num < 8 || num > 15) {\n            throw new TypeError(\n              `Invalid value for parameter \"${key}\": ${value}`\n            );\n          }\n          value = num;\n        } else if (\n          key === 'client_no_context_takeover' ||\n          key === 'server_no_context_takeover'\n        ) {\n          if (value !== true) {\n            throw new TypeError(\n              `Invalid value for parameter \"${key}\": ${value}`\n            );\n          }\n        } else {\n          throw new Error(`Unknown parameter \"${key}\"`);\n        }\n\n        params[key] = value;\n      });\n    });\n\n    return configurations;\n  }\n\n  /**\n   * Decompress data. Concurrency limited.\n   *\n   * @param {Buffer} data Compressed data\n   * @param {Boolean} fin Specifies whether or not this is the last fragment\n   * @param {Function} callback Callback\n   * @public\n   */\n  decompress(data, fin, callback) {\n    zlibLimiter.add((done) => {\n      this._decompress(data, fin, (err, result) => {\n        done();\n        callback(err, result);\n      });\n    });\n  }\n\n  /**\n   * Compress data. Concurrency limited.\n   *\n   * @param {(Buffer|String)} data Data to compress\n   * @param {Boolean} fin Specifies whether or not this is the last fragment\n   * @param {Function} callback Callback\n   * @public\n   */\n  compress(data, fin, callback) {\n    zlibLimiter.add((done) => {\n      this._compress(data, fin, (err, result) => {\n        done();\n        callback(err, result);\n      });\n    });\n  }\n\n  /**\n   * Decompress data.\n   *\n   * @param {Buffer} data Compressed data\n   * @param {Boolean} fin Specifies whether or not this is the last fragment\n   * @param {Function} callback Callback\n   * @private\n   */\n  _decompress(data, fin, callback) {\n    const endpoint = this._isServer ? 'client' : 'server';\n\n    if (!this._inflate) {\n      const key = `${endpoint}_max_window_bits`;\n      const windowBits =\n        typeof this.params[key] !== 'number'\n          ? zlib.Z_DEFAULT_WINDOWBITS\n          : this.params[key];\n\n      this._inflate = zlib.createInflateRaw({\n        ...this._options.zlibInflateOptions,\n        windowBits\n      });\n      this._inflate[kPerMessageDeflate] = this;\n      this._inflate[kTotalLength] = 0;\n      this._inflate[kBuffers] = [];\n      this._inflate.on('error', inflateOnError);\n      this._inflate.on('data', inflateOnData);\n    }\n\n    this._inflate[kCallback] = callback;\n\n    this._inflate.write(data);\n    if (fin) this._inflate.write(TRAILER);\n\n    this._inflate.flush(() => {\n      const err = this._inflate[kError];\n\n      if (err) {\n        this._inflate.close();\n        this._inflate = null;\n        callback(err);\n        return;\n      }\n\n      const data = bufferUtil.concat(\n        this._inflate[kBuffers],\n        this._inflate[kTotalLength]\n      );\n\n      if (this._inflate._readableState.endEmitted) {\n        this._inflate.close();\n        this._inflate = null;\n      } else {\n        this._inflate[kTotalLength] = 0;\n        this._inflate[kBuffers] = [];\n\n        if (fin && this.params[`${endpoint}_no_context_takeover`]) {\n          this._inflate.reset();\n        }\n      }\n\n      callback(null, data);\n    });\n  }\n\n  /**\n   * Compress data.\n   *\n   * @param {(Buffer|String)} data Data to compress\n   * @param {Boolean} fin Specifies whether or not this is the last fragment\n   * @param {Function} callback Callback\n   * @private\n   */\n  _compress(data, fin, callback) {\n    const endpoint = this._isServer ? 'server' : 'client';\n\n    if (!this._deflate) {\n      const key = `${endpoint}_max_window_bits`;\n      const windowBits =\n        typeof this.params[key] !== 'number'\n          ? zlib.Z_DEFAULT_WINDOWBITS\n          : this.params[key];\n\n      this._deflate = zlib.createDeflateRaw({\n        ...this._options.zlibDeflateOptions,\n        windowBits\n      });\n\n      this._deflate[kTotalLength] = 0;\n      this._deflate[kBuffers] = [];\n\n      this._deflate.on('data', deflateOnData);\n    }\n\n    this._deflate[kCall