@hadesz/monitor
Version:
A complete server monitoring system with agents, server and dashboard
1,111 lines (1,080 loc) • 232 kB
JavaScript
/**
* @license
* web-streams-polyfill v3.3.3
* Copyright 2024 Mattias Buelens, Diwank Singh Tomer and other contributors.
* This code is released under the MIT license.
* SPDX-License-Identifier: MIT
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.WebStreamsPolyfill = {}));
})(this, (function (exports) { 'use strict';
/// <reference lib="es2015.symbol" />
var SymbolPolyfill = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ?
Symbol :
function (description) { return "Symbol(".concat(description, ")"); };
/******************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
/* global Reflect, Promise, SuppressedError, Symbol */
function __generator(thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
}
function __values(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
}
function __await(v) {
return this instanceof __await ? (this.v = v, this) : new __await(v);
}
function __asyncGenerator(thisArg, _arguments, generator) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), i, q = [];
return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
function fulfill(value) { resume("next", value); }
function reject(value) { resume("throw", value); }
function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
}
function __asyncDelegator(o) {
var i, p;
return i = {}, verb("next"), verb("throw", function (e) { throw e; }), verb("return"), i[Symbol.iterator] = function () { return this; }, i;
function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }
}
function __asyncValues(o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
}
typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
var e = new Error(message);
return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
};
function noop() {
return undefined;
}
function typeIsObject(x) {
return (typeof x === 'object' && x !== null) || typeof x === 'function';
}
var rethrowAssertionErrorRejection = noop;
function setFunctionName(fn, name) {
try {
Object.defineProperty(fn, 'name', {
value: name,
configurable: true
});
}
catch (_a) {
// This property is non-configurable in older browsers, so ignore if this throws.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name#browser_compatibility
}
}
var originalPromise = Promise;
var originalPromiseThen = Promise.prototype.then;
var originalPromiseReject = Promise.reject.bind(originalPromise);
// https://webidl.spec.whatwg.org/#a-new-promise
function newPromise(executor) {
return new originalPromise(executor);
}
// https://webidl.spec.whatwg.org/#a-promise-resolved-with
function promiseResolvedWith(value) {
return newPromise(function (resolve) { return resolve(value); });
}
// https://webidl.spec.whatwg.org/#a-promise-rejected-with
function promiseRejectedWith(reason) {
return originalPromiseReject(reason);
}
function PerformPromiseThen(promise, onFulfilled, onRejected) {
// There doesn't appear to be any way to correctly emulate the behaviour from JavaScript, so this is just an
// approximation.
return originalPromiseThen.call(promise, onFulfilled, onRejected);
}
// Bluebird logs a warning when a promise is created within a fulfillment handler, but then isn't returned
// from that handler. To prevent this, return null instead of void from all handlers.
// http://bluebirdjs.com/docs/warning-explanations.html#warning-a-promise-was-created-in-a-handler-but-was-not-returned-from-it
function uponPromise(promise, onFulfilled, onRejected) {
PerformPromiseThen(PerformPromiseThen(promise, onFulfilled, onRejected), undefined, rethrowAssertionErrorRejection);
}
function uponFulfillment(promise, onFulfilled) {
uponPromise(promise, onFulfilled);
}
function uponRejection(promise, onRejected) {
uponPromise(promise, undefined, onRejected);
}
function transformPromiseWith(promise, fulfillmentHandler, rejectionHandler) {
return PerformPromiseThen(promise, fulfillmentHandler, rejectionHandler);
}
function setPromiseIsHandledToTrue(promise) {
PerformPromiseThen(promise, undefined, rethrowAssertionErrorRejection);
}
var _queueMicrotask = function (callback) {
if (typeof queueMicrotask === 'function') {
_queueMicrotask = queueMicrotask;
}
else {
var resolvedPromise_1 = promiseResolvedWith(undefined);
_queueMicrotask = function (cb) { return PerformPromiseThen(resolvedPromise_1, cb); };
}
return _queueMicrotask(callback);
};
function reflectCall(F, V, args) {
if (typeof F !== 'function') {
throw new TypeError('Argument is not a function');
}
return Function.prototype.apply.call(F, V, args);
}
function promiseCall(F, V, args) {
try {
return promiseResolvedWith(reflectCall(F, V, args));
}
catch (value) {
return promiseRejectedWith(value);
}
}
// Original from Chromium
// https://chromium.googlesource.com/chromium/src/+/0aee4434a4dba42a42abaea9bfbc0cd196a63bc1/third_party/blink/renderer/core/streams/SimpleQueue.js
var QUEUE_MAX_ARRAY_SIZE = 16384;
/**
* Simple queue structure.
*
* Avoids scalability issues with using a packed array directly by using
* multiple arrays in a linked list and keeping the array size bounded.
*/
var SimpleQueue = /** @class */ (function () {
function SimpleQueue() {
this._cursor = 0;
this._size = 0;
// _front and _back are always defined.
this._front = {
_elements: [],
_next: undefined
};
this._back = this._front;
// The cursor is used to avoid calling Array.shift().
// It contains the index of the front element of the array inside the
// front-most node. It is always in the range [0, QUEUE_MAX_ARRAY_SIZE).
this._cursor = 0;
// When there is only one node, size === elements.length - cursor.
this._size = 0;
}
Object.defineProperty(SimpleQueue.prototype, "length", {
get: function () {
return this._size;
},
enumerable: false,
configurable: true
});
// For exception safety, this method is structured in order:
// 1. Read state
// 2. Calculate required state mutations
// 3. Perform state mutations
SimpleQueue.prototype.push = function (element) {
var oldBack = this._back;
var newBack = oldBack;
if (oldBack._elements.length === QUEUE_MAX_ARRAY_SIZE - 1) {
newBack = {
_elements: [],
_next: undefined
};
}
// push() is the mutation most likely to throw an exception, so it
// goes first.
oldBack._elements.push(element);
if (newBack !== oldBack) {
this._back = newBack;
oldBack._next = newBack;
}
++this._size;
};
// Like push(), shift() follows the read -> calculate -> mutate pattern for
// exception safety.
SimpleQueue.prototype.shift = function () { // must not be called on an empty queue
var oldFront = this._front;
var newFront = oldFront;
var oldCursor = this._cursor;
var newCursor = oldCursor + 1;
var elements = oldFront._elements;
var element = elements[oldCursor];
if (newCursor === QUEUE_MAX_ARRAY_SIZE) {
newFront = oldFront._next;
newCursor = 0;
}
// No mutations before this point.
--this._size;
this._cursor = newCursor;
if (oldFront !== newFront) {
this._front = newFront;
}
// Permit shifted element to be garbage collected.
elements[oldCursor] = undefined;
return element;
};
// The tricky thing about forEach() is that it can be called
// re-entrantly. The queue may be mutated inside the callback. It is easy to
// see that push() within the callback has no negative effects since the end
// of the queue is checked for on every iteration. If shift() is called
// repeatedly within the callback then the next iteration may return an
// element that has been removed. In this case the callback will be called
// with undefined values until we either "catch up" with elements that still
// exist or reach the back of the queue.
SimpleQueue.prototype.forEach = function (callback) {
var i = this._cursor;
var node = this._front;
var elements = node._elements;
while (i !== elements.length || node._next !== undefined) {
if (i === elements.length) {
node = node._next;
elements = node._elements;
i = 0;
if (elements.length === 0) {
break;
}
}
callback(elements[i]);
++i;
}
};
// Return the element that would be returned if shift() was called now,
// without modifying the queue.
SimpleQueue.prototype.peek = function () { // must not be called on an empty queue
var front = this._front;
var cursor = this._cursor;
return front._elements[cursor];
};
return SimpleQueue;
}());
var AbortSteps = SymbolPolyfill('[[AbortSteps]]');
var ErrorSteps = SymbolPolyfill('[[ErrorSteps]]');
var CancelSteps = SymbolPolyfill('[[CancelSteps]]');
var PullSteps = SymbolPolyfill('[[PullSteps]]');
var ReleaseSteps = SymbolPolyfill('[[ReleaseSteps]]');
function ReadableStreamReaderGenericInitialize(reader, stream) {
reader._ownerReadableStream = stream;
stream._reader = reader;
if (stream._state === 'readable') {
defaultReaderClosedPromiseInitialize(reader);
}
else if (stream._state === 'closed') {
defaultReaderClosedPromiseInitializeAsResolved(reader);
}
else {
defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);
}
}
// A client of ReadableStreamDefaultReader and ReadableStreamBYOBReader may use these functions directly to bypass state
// check.
function ReadableStreamReaderGenericCancel(reader, reason) {
var stream = reader._ownerReadableStream;
return ReadableStreamCancel(stream, reason);
}
function ReadableStreamReaderGenericRelease(reader) {
var stream = reader._ownerReadableStream;
if (stream._state === 'readable') {
defaultReaderClosedPromiseReject(reader, new TypeError("Reader was released and can no longer be used to monitor the stream's closedness"));
}
else {
defaultReaderClosedPromiseResetToRejected(reader, new TypeError("Reader was released and can no longer be used to monitor the stream's closedness"));
}
stream._readableStreamController[ReleaseSteps]();
stream._reader = undefined;
reader._ownerReadableStream = undefined;
}
// Helper functions for the readers.
function readerLockException(name) {
return new TypeError('Cannot ' + name + ' a stream using a released reader');
}
// Helper functions for the ReadableStreamDefaultReader.
function defaultReaderClosedPromiseInitialize(reader) {
reader._closedPromise = newPromise(function (resolve, reject) {
reader._closedPromise_resolve = resolve;
reader._closedPromise_reject = reject;
});
}
function defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {
defaultReaderClosedPromiseInitialize(reader);
defaultReaderClosedPromiseReject(reader, reason);
}
function defaultReaderClosedPromiseInitializeAsResolved(reader) {
defaultReaderClosedPromiseInitialize(reader);
defaultReaderClosedPromiseResolve(reader);
}
function defaultReaderClosedPromiseReject(reader, reason) {
if (reader._closedPromise_reject === undefined) {
return;
}
setPromiseIsHandledToTrue(reader._closedPromise);
reader._closedPromise_reject(reason);
reader._closedPromise_resolve = undefined;
reader._closedPromise_reject = undefined;
}
function defaultReaderClosedPromiseResetToRejected(reader, reason) {
defaultReaderClosedPromiseInitializeAsRejected(reader, reason);
}
function defaultReaderClosedPromiseResolve(reader) {
if (reader._closedPromise_resolve === undefined) {
return;
}
reader._closedPromise_resolve(undefined);
reader._closedPromise_resolve = undefined;
reader._closedPromise_reject = undefined;
}
/// <reference lib="es2015.core" />
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite#Polyfill
var NumberIsFinite = Number.isFinite || function (x) {
return typeof x === 'number' && isFinite(x);
};
/// <reference lib="es2015.core" />
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc#Polyfill
var MathTrunc = Math.trunc || function (v) {
return v < 0 ? Math.ceil(v) : Math.floor(v);
};
// https://heycam.github.io/webidl/#idl-dictionaries
function isDictionary(x) {
return typeof x === 'object' || typeof x === 'function';
}
function assertDictionary(obj, context) {
if (obj !== undefined && !isDictionary(obj)) {
throw new TypeError("".concat(context, " is not an object."));
}
}
// https://heycam.github.io/webidl/#idl-callback-functions
function assertFunction(x, context) {
if (typeof x !== 'function') {
throw new TypeError("".concat(context, " is not a function."));
}
}
// https://heycam.github.io/webidl/#idl-object
function isObject(x) {
return (typeof x === 'object' && x !== null) || typeof x === 'function';
}
function assertObject(x, context) {
if (!isObject(x)) {
throw new TypeError("".concat(context, " is not an object."));
}
}
function assertRequiredArgument(x, position, context) {
if (x === undefined) {
throw new TypeError("Parameter ".concat(position, " is required in '").concat(context, "'."));
}
}
function assertRequiredField(x, field, context) {
if (x === undefined) {
throw new TypeError("".concat(field, " is required in '").concat(context, "'."));
}
}
// https://heycam.github.io/webidl/#idl-unrestricted-double
function convertUnrestrictedDouble(value) {
return Number(value);
}
function censorNegativeZero(x) {
return x === 0 ? 0 : x;
}
function integerPart(x) {
return censorNegativeZero(MathTrunc(x));
}
// https://heycam.github.io/webidl/#idl-unsigned-long-long
function convertUnsignedLongLongWithEnforceRange(value, context) {
var lowerBound = 0;
var upperBound = Number.MAX_SAFE_INTEGER;
var x = Number(value);
x = censorNegativeZero(x);
if (!NumberIsFinite(x)) {
throw new TypeError("".concat(context, " is not a finite number"));
}
x = integerPart(x);
if (x < lowerBound || x > upperBound) {
throw new TypeError("".concat(context, " is outside the accepted range of ").concat(lowerBound, " to ").concat(upperBound, ", inclusive"));
}
if (!NumberIsFinite(x) || x === 0) {
return 0;
}
// TODO Use BigInt if supported?
// let xBigInt = BigInt(integerPart(x));
// xBigInt = BigInt.asUintN(64, xBigInt);
// return Number(xBigInt);
return x;
}
function assertReadableStream(x, context) {
if (!IsReadableStream(x)) {
throw new TypeError("".concat(context, " is not a ReadableStream."));
}
}
// Abstract operations for the ReadableStream.
function AcquireReadableStreamDefaultReader(stream) {
return new ReadableStreamDefaultReader(stream);
}
// ReadableStream API exposed for controllers.
function ReadableStreamAddReadRequest(stream, readRequest) {
stream._reader._readRequests.push(readRequest);
}
function ReadableStreamFulfillReadRequest(stream, chunk, done) {
var reader = stream._reader;
var readRequest = reader._readRequests.shift();
if (done) {
readRequest._closeSteps();
}
else {
readRequest._chunkSteps(chunk);
}
}
function ReadableStreamGetNumReadRequests(stream) {
return stream._reader._readRequests.length;
}
function ReadableStreamHasDefaultReader(stream) {
var reader = stream._reader;
if (reader === undefined) {
return false;
}
if (!IsReadableStreamDefaultReader(reader)) {
return false;
}
return true;
}
/**
* A default reader vended by a {@link ReadableStream}.
*
* @public
*/
var ReadableStreamDefaultReader = /** @class */ (function () {
function ReadableStreamDefaultReader(stream) {
assertRequiredArgument(stream, 1, 'ReadableStreamDefaultReader');
assertReadableStream(stream, 'First parameter');
if (IsReadableStreamLocked(stream)) {
throw new TypeError('This stream has already been locked for exclusive reading by another reader');
}
ReadableStreamReaderGenericInitialize(this, stream);
this._readRequests = new SimpleQueue();
}
Object.defineProperty(ReadableStreamDefaultReader.prototype, "closed", {
/**
* Returns a promise that will be fulfilled when the stream becomes closed,
* or rejected if the stream ever errors or the reader's lock is released before the stream finishes closing.
*/
get: function () {
if (!IsReadableStreamDefaultReader(this)) {
return promiseRejectedWith(defaultReaderBrandCheckException('closed'));
}
return this._closedPromise;
},
enumerable: false,
configurable: true
});
/**
* If the reader is active, behaves the same as {@link ReadableStream.cancel | stream.cancel(reason)}.
*/
ReadableStreamDefaultReader.prototype.cancel = function (reason) {
if (reason === void 0) { reason = undefined; }
if (!IsReadableStreamDefaultReader(this)) {
return promiseRejectedWith(defaultReaderBrandCheckException('cancel'));
}
if (this._ownerReadableStream === undefined) {
return promiseRejectedWith(readerLockException('cancel'));
}
return ReadableStreamReaderGenericCancel(this, reason);
};
/**
* Returns a promise that allows access to the next chunk from the stream's internal queue, if available.
*
* If reading a chunk causes the queue to become empty, more data will be pulled from the underlying source.
*/
ReadableStreamDefaultReader.prototype.read = function () {
if (!IsReadableStreamDefaultReader(this)) {
return promiseRejectedWith(defaultReaderBrandCheckException('read'));
}
if (this._ownerReadableStream === undefined) {
return promiseRejectedWith(readerLockException('read from'));
}
var resolvePromise;
var rejectPromise;
var promise = newPromise(function (resolve, reject) {
resolvePromise = resolve;
rejectPromise = reject;
});
var readRequest = {
_chunkSteps: function (chunk) { return resolvePromise({ value: chunk, done: false }); },
_closeSteps: function () { return resolvePromise({ value: undefined, done: true }); },
_errorSteps: function (e) { return rejectPromise(e); }
};
ReadableStreamDefaultReaderRead(this, readRequest);
return promise;
};
/**
* Releases the reader's lock on the corresponding stream. After the lock is released, the reader is no longer active.
* If the associated stream is errored when the lock is released, the reader will appear errored in the same way
* from now on; otherwise, the reader will appear closed.
*
* A reader's lock cannot be released while it still has a pending read request, i.e., if a promise returned by
* the reader's {@link ReadableStreamDefaultReader.read | read()} method has not yet been settled. Attempting to
* do so will throw a `TypeError` and leave the reader locked to the stream.
*/
ReadableStreamDefaultReader.prototype.releaseLock = function () {
if (!IsReadableStreamDefaultReader(this)) {
throw defaultReaderBrandCheckException('releaseLock');
}
if (this._ownerReadableStream === undefined) {
return;
}
ReadableStreamDefaultReaderRelease(this);
};
return ReadableStreamDefaultReader;
}());
Object.defineProperties(ReadableStreamDefaultReader.prototype, {
cancel: { enumerable: true },
read: { enumerable: true },
releaseLock: { enumerable: true },
closed: { enumerable: true }
});
setFunctionName(ReadableStreamDefaultReader.prototype.cancel, 'cancel');
setFunctionName(ReadableStreamDefaultReader.prototype.read, 'read');
setFunctionName(ReadableStreamDefaultReader.prototype.releaseLock, 'releaseLock');
if (typeof SymbolPolyfill.toStringTag === 'symbol') {
Object.defineProperty(ReadableStreamDefaultReader.prototype, SymbolPolyfill.toStringTag, {
value: 'ReadableStreamDefaultReader',
configurable: true
});
}
// Abstract operations for the readers.
function IsReadableStreamDefaultReader(x) {
if (!typeIsObject(x)) {
return false;
}
if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {
return false;
}
return x instanceof ReadableStreamDefaultReader;
}
function ReadableStreamDefaultReaderRead(reader, readRequest) {
var stream = reader._ownerReadableStream;
stream._disturbed = true;
if (stream._state === 'closed') {
readRequest._closeSteps();
}
else if (stream._state === 'errored') {
readRequest._errorSteps(stream._storedError);
}
else {
stream._readableStreamController[PullSteps](readRequest);
}
}
function ReadableStreamDefaultReaderRelease(reader) {
ReadableStreamReaderGenericRelease(reader);
var e = new TypeError('Reader was released');
ReadableStreamDefaultReaderErrorReadRequests(reader, e);
}
function ReadableStreamDefaultReaderErrorReadRequests(reader, e) {
var readRequests = reader._readRequests;
reader._readRequests = new SimpleQueue();
readRequests.forEach(function (readRequest) {
readRequest._errorSteps(e);
});
}
// Helper functions for the ReadableStreamDefaultReader.
function defaultReaderBrandCheckException(name) {
return new TypeError("ReadableStreamDefaultReader.prototype.".concat(name, " can only be used on a ReadableStreamDefaultReader"));
}
var _a$1, _b, _c;
function CreateArrayFromList(elements) {
// We use arrays to represent lists, so this is basically a no-op.
// Do a slice though just in case we happen to depend on the unique-ness.
return elements.slice();
}
function CopyDataBlockBytes(dest, destOffset, src, srcOffset, n) {
new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);
}
var TransferArrayBuffer = function (O) {
if (typeof O.transfer === 'function') {
TransferArrayBuffer = function (buffer) { return buffer.transfer(); };
}
else if (typeof structuredClone === 'function') {
TransferArrayBuffer = function (buffer) { return structuredClone(buffer, { transfer: [buffer] }); };
}
else {
// Not implemented correctly
TransferArrayBuffer = function (buffer) { return buffer; };
}
return TransferArrayBuffer(O);
};
var IsDetachedBuffer = function (O) {
if (typeof O.detached === 'boolean') {
IsDetachedBuffer = function (buffer) { return buffer.detached; };
}
else {
// Not implemented correctly
IsDetachedBuffer = function (buffer) { return buffer.byteLength === 0; };
}
return IsDetachedBuffer(O);
};
function ArrayBufferSlice(buffer, begin, end) {
// ArrayBuffer.prototype.slice is not available on IE10
// https://www.caniuse.com/mdn-javascript_builtins_arraybuffer_slice
if (buffer.slice) {
return buffer.slice(begin, end);
}
var length = end - begin;
var slice = new ArrayBuffer(length);
CopyDataBlockBytes(slice, 0, buffer, begin, length);
return slice;
}
function GetMethod(receiver, prop) {
var func = receiver[prop];
if (func === undefined || func === null) {
return undefined;
}
if (typeof func !== 'function') {
throw new TypeError("".concat(String(prop), " is not a function"));
}
return func;
}
function CreateAsyncFromSyncIterator(syncIteratorRecord) {
// Instead of re-implementing CreateAsyncFromSyncIterator and %AsyncFromSyncIteratorPrototype%,
// we use yield* inside an async generator function to achieve the same result.
var _a;
// Wrap the sync iterator inside a sync iterable, so we can use it with yield*.
var syncIterable = (_a = {},
_a[SymbolPolyfill.iterator] = function () { return syncIteratorRecord.iterator; },
_a);
// Create an async generator function and immediately invoke it.
var asyncIterator = (function () {
return __asyncGenerator(this, arguments, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [5 /*yield**/, __values(__asyncDelegator(__asyncValues(syncIterable)))];
case 1: return [4 /*yield*/, __await.apply(void 0, [_a.sent()])];
case 2: return [4 /*yield*/, __await.apply(void 0, [_a.sent()])];
case 3: return [2 /*return*/, _a.sent()];
}
});
});
}());
// Return as an async iterator record.
var nextMethod = asyncIterator.next;
return { iterator: asyncIterator, nextMethod: nextMethod, done: false };
}
// Aligns with core-js/modules/es.symbol.async-iterator.js
var SymbolAsyncIterator = (_c = (_a$1 = SymbolPolyfill.asyncIterator) !== null && _a$1 !== void 0 ? _a$1 : (_b = SymbolPolyfill.for) === null || _b === void 0 ? void 0 : _b.call(SymbolPolyfill, 'Symbol.asyncIterator')) !== null && _c !== void 0 ? _c : '@@asyncIterator';
function GetIterator(obj, hint, method) {
if (hint === void 0) { hint = 'sync'; }
if (method === undefined) {
if (hint === 'async') {
method = GetMethod(obj, SymbolAsyncIterator);
if (method === undefined) {
var syncMethod = GetMethod(obj, SymbolPolyfill.iterator);
var syncIteratorRecord = GetIterator(obj, 'sync', syncMethod);
return CreateAsyncFromSyncIterator(syncIteratorRecord);
}
}
else {
method = GetMethod(obj, SymbolPolyfill.iterator);
}
}
if (method === undefined) {
throw new TypeError('The object is not iterable');
}
var iterator = reflectCall(method, obj, []);
if (!typeIsObject(iterator)) {
throw new TypeError('The iterator method must return an object');
}
var nextMethod = iterator.next;
return { iterator: iterator, nextMethod: nextMethod, done: false };
}
function IteratorNext(iteratorRecord) {
var result = reflectCall(iteratorRecord.nextMethod, iteratorRecord.iterator, []);
if (!typeIsObject(result)) {
throw new TypeError('The iterator.next() method must return an object');
}
return result;
}
function IteratorComplete(iterResult) {
return Boolean(iterResult.done);
}
function IteratorValue(iterResult) {
return iterResult.value;
}
/// <reference lib="es2018.asynciterable" />
var _a;
// We cannot access %AsyncIteratorPrototype% without non-ES2018 syntax, but we can re-create it.
var AsyncIteratorPrototype = (_a = {},
// 25.1.3.1 %AsyncIteratorPrototype% [ @@asyncIterator ] ( )
// https://tc39.github.io/ecma262/#sec-asynciteratorprototype-asynciterator
_a[SymbolAsyncIterator] = function () {
return this;
},
_a);
Object.defineProperty(AsyncIteratorPrototype, SymbolAsyncIterator, { enumerable: false });
/// <reference lib="es2018.asynciterable" />
var ReadableStreamAsyncIteratorImpl = /** @class */ (function () {
function ReadableStreamAsyncIteratorImpl(reader, preventCancel) {
this._ongoingPromise = undefined;
this._isFinished = false;
this._reader = reader;
this._preventCancel = preventCancel;
}
ReadableStreamAsyncIteratorImpl.prototype.next = function () {
var _this = this;
var nextSteps = function () { return _this._nextSteps(); };
this._ongoingPromise = this._ongoingPromise ?
transformPromiseWith(this._ongoingPromise, nextSteps, nextSteps) :
nextSteps();
return this._ongoingPromise;
};
ReadableStreamAsyncIteratorImpl.prototype.return = function (value) {
var _this = this;
var returnSteps = function () { return _this._returnSteps(value); };
return this._ongoingPromise ?
transformPromiseWith(this._ongoingPromise, returnSteps, returnSteps) :
returnSteps();
};
ReadableStreamAsyncIteratorImpl.prototype._nextSteps = function () {
var _this = this;
if (this._isFinished) {
return Promise.resolve({ value: undefined, done: true });
}
var reader = this._reader;
var resolvePromise;
var rejectPromise;
var promise = newPromise(function (resolve, reject) {
resolvePromise = resolve;
rejectPromise = reject;
});
var readRequest = {
_chunkSteps: function (chunk) {
_this._ongoingPromise = undefined;
// This needs to be delayed by one microtask, otherwise we stop pulling too early which breaks a test.
// FIXME Is this a bug in the specification, or in the test?
_queueMicrotask(function () { return resolvePromise({ value: chunk, done: false }); });
},
_closeSteps: function () {
_this._ongoingPromise = undefined;
_this._isFinished = true;
ReadableStreamReaderGenericRelease(reader);
resolvePromise({ value: undefined, done: true });
},
_errorSteps: function (reason) {
_this._ongoingPromise = undefined;
_this._isFinished = true;
ReadableStreamReaderGenericRelease(reader);
rejectPromise(reason);
}
};
ReadableStreamDefaultReaderRead(reader, readRequest);
return promise;
};
ReadableStreamAsyncIteratorImpl.prototype._returnSteps = function (value) {
if (this._isFinished) {
return Promise.resolve({ value: value, done: true });
}
this._isFinished = true;
var reader = this._reader;
if (!this._preventCancel) {
var result = ReadableStreamReaderGenericCancel(reader, value);
ReadableStreamReaderGenericRelease(reader);
return transformPromiseWith(result, function () { return ({ value: value, done: true }); });
}
ReadableStreamReaderGenericRelease(reader);
return promiseResolvedWith({ value: value, done: true });
};
return ReadableStreamAsyncIteratorImpl;
}());
var ReadableStreamAsyncIteratorPrototype = {
next: function () {
if (!IsReadableStreamAsyncIterator(this)) {
return promiseRejectedWith(streamAsyncIteratorBrandCheckException('next'));
}
return this._asyncIteratorImpl.next();
},
return: function (value) {
if (!IsReadableStreamAsyncIterator(this)) {
return promiseRejectedWith(streamAsyncIteratorBrandCheckException('return'));
}
return this._asyncIteratorImpl.return(value);
}
};
Object.setPrototypeOf(ReadableStreamAsyncIteratorPrototype, AsyncIteratorPrototype);
// Abstract operations for the ReadableStream.
function AcquireReadableStreamAsyncIterator(stream, preventCancel) {
var reader = AcquireReadableStreamDefaultReader(stream);
var impl = new ReadableStreamAsyncIteratorImpl(reader, preventCancel);
var iterator = Object.create(ReadableStreamAsyncIteratorPrototype);
iterator._asyncIteratorImpl = impl;
return iterator;
}
function IsReadableStreamAsyncIterator(x) {
if (!typeIsObject(x)) {
return false;
}
if (!Object.prototype.hasOwnProperty.call(x, '_asyncIteratorImpl')) {
return false;
}
try {
// noinspection SuspiciousTypeOfGuard
return x._asyncIteratorImpl instanceof
ReadableStreamAsyncIteratorImpl;
}
catch (_a) {
return false;
}
}
// Helper functions for the ReadableStream.
function streamAsyncIteratorBrandCheckException(name) {
return new TypeError("ReadableStreamAsyncIterator.".concat(name, " can only be used on a ReadableSteamAsyncIterator"));
}
/// <reference lib="es2015.core" />
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN#Polyfill
var NumberIsNaN = Number.isNaN || function (x) {
// eslint-disable-next-line no-self-compare
return x !== x;
};
function IsNonNegativeNumber(v) {
if (typeof v !== 'number') {
return false;
}
if (NumberIsNaN(v)) {
return false;
}
if (v < 0) {
return false;
}
return true;
}
function CloneAsUint8Array(O) {
var buffer = ArrayBufferSlice(O.buffer, O.byteOffset, O.byteOffset + O.byteLength);
return new Uint8Array(buffer);
}
function DequeueValue(container) {
var pair = container._queue.shift();
container._queueTotalSize -= pair.size;
if (container._queueTotalSize < 0) {
container._queueTotalSize = 0;
}
return pair.value;
}
function EnqueueValueWithSize(container, value, size) {
if (!IsNonNegativeNumber(size) || size === Infinity) {
throw new RangeError('Size must be a finite, non-NaN, non-negative number.');
}
container._queue.push({ value: value, size: size });
container._queueTotalSize += size;
}
function PeekQueueValue(container) {
var pair = container._queue.peek();
return pair.value;
}
function ResetQueue(container) {
container._queue = new SimpleQueue();
container._queueTotalSize = 0;
}
function isDataViewConstructor(ctor) {
return ctor === DataView;
}
function isDataView(view) {
return isDataViewConstructor(view.constructor);
}
function arrayBufferViewElementSize(ctor) {
if (isDataViewConstructor(ctor)) {
return 1;
}
return ctor.BYTES_PER_ELEMENT;
}
/**
* A pull-into request in a {@link ReadableByteStreamController}.
*
* @public
*/
var ReadableStreamBYOBRequest = /** @class */ (function () {
function ReadableStreamBYOBRequest() {
throw new TypeError('Illegal constructor');
}
Object.defineProperty(ReadableStreamBYOBRequest.prototype, "view", {
/**
* Returns the view for writing in to, or `null` if the BYOB request has already been responded to.
*/
get: function () {
if (!IsReadableStreamBYOBRequest(this)) {
throw byobRequestBrandCheckException('view');
}
return this._view;
},
enumerable: false,
configurable: true
});
ReadableStreamBYOBRequest.prototype.respond = function (bytesWritten) {
if (!IsReadableStreamBYOBRequest(this)) {
throw byobRequestBrandCheckException('respond');
}
assertRequiredArgument(bytesWritten, 1, 'respond');
bytesWritten = convertUnsignedLongLongWithEnforceRange(bytesWritten, 'First parameter');
if (this._associatedReadableByteStreamController === undefined) {
throw new TypeError('This BYOB request has been invalidated');
}
if (IsDetachedBuffer(this._view.buffer)) {
throw new TypeError("The BYOB request's buffer has been detached and so cannot be used as a response");
}
ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);
};
ReadableStreamBYOBRequest.prototype.respondWithNewView = function (view) {
if (!IsReadableStreamBYOBRequest(this)) {
throw byobRequestBrandCheckException('respondWithNewView');
}
assertRequiredArgument(view, 1, 'respondWithNewView');
if (!ArrayBuffer.isView(view)) {
throw new TypeError('You can only respond with array buffer views');
}
if (this._associatedReadableByteStreamController === undefined) {
throw new TypeError('This BYOB request has been invalidated');
}
if (IsDetachedBuffer(view.buffer)) {
throw new TypeError('The given view\'s buffer has been detached and so cannot be used as a response');
}
ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);
};
return ReadableStreamBYOBRequest;
}());
Object.defineProperties(ReadableStreamBYOBRequest.prototype, {
respond: { enumerable: true },
respondWithNewView: { enumerable: true },
view: { enumerable: true }
});
setFunctionName(ReadableStreamBYOBRequest.prototype.respond, 'respond');
setFunctionName(ReadableStreamBYOBRequest.prototype.respondWithNewView, 'respondWithNewView');
if (typeof SymbolPolyfill.toStringTag === 'symbol') {
Object.defineProperty(ReadableStreamBYOBRequest.prototype, SymbolPolyfill.toStringTag, {
value: 'ReadableStreamBYOBRequest',
configurable: true
});
}
/**
* Allows control of a {@link ReadableStream | readable byte stream}'s state and internal queue.
*
* @public
*/
var ReadableByteStreamController = /** @class */ (function () {
function ReadableByteStreamController() {
throw new TypeError('Illegal constructor');
}
Object.defineProperty(ReadableByteStreamController.prototype, "byobRequest", {
/**
* Returns the current BYOB pull request, or `null` if there isn't one.
*/
get: function () {
if (!IsReadableByteStreamController(this)) {
throw byteStreamControllerBrandCheckException('byobRequest');
}
return ReadableByteStreamControllerGetBYOBRequest(this);
},
enumerable: false,
configurable: true
});
Object.defineProperty(ReadableByteStreamController.prototype, "desiredSize", {
/**
* Returns the desired size to fill the controlled stream's internal queue. It can be negative, if the queue is
* over-full. An underlying byte source ought to use this information to determine when and how to apply backpressure.
*/
get: function () {
if (!IsReadableByteStreamController(this)) {
throw byteStreamControllerBrandCheckException('desiredSize');
}
return ReadableByteStreamControllerGetDesiredSize(this);
},
enumerable: false,
configurable: true
});
/**
* Closes the controlled readable stream. Consumers will still be able to read any previously-enqueued chunks from
* the stream, but once those are read, the stream will become closed.
*/
ReadableByteStreamController.prototype.close = function () {
if (!IsReadableByteStreamController(this)) {
throw byteStreamControllerBrandCheckException('close');
}
if (this._closeRequested) {
throw new TypeError('The stream has already been closed; do not close it again!');
}
var state = this._controlledReadableByteStream._state;
if (state !== 'readable') {
throw new TypeError("The stream (in ".concat(state, " state) is not in the readable state and cannot be closed"));
}
ReadableByteStreamControllerClose(this);
};
ReadableByteStreamController.prototype.enqueue = function (chunk) {
if (!IsReadableByteStreamController(this)) {
throw byteStreamControllerBrandCheckException('enqueue');
}
assertRequiredArgument(chunk, 1, 'enqueue');
if (!ArrayBuffer.isView(chunk)) {
throw new TypeError('chunk must be an array buffer view');
}
if (chunk.byteLength === 0) {
throw new TypeError('chunk must have non-zero byteLength');
}
if (chunk.buffer.byteLength === 0) {
throw new TypeError("chunk's buffer must have non-zero byteLength");
}
if (this._closeRequested) {
throw new TypeError('stream is closed or draining');
}
var state = this._controlledReadableByteStream._state;
if (state !== 'readable') {
throw new TypeError("The stream (in ".concat(state, " state) is not in the readable state and cannot be enqueued to"));
}
ReadableByteStreamControllerEnqueue(this, chunk);
};
/**
* Errors the controlled readable stream, making all future interactions with it fail with the given error `e`.
*/
ReadableByteStreamController.prototype.error = function (e) {
if (e === void 0) { e = undefined; }
if (!IsReadableByteStreamController(this)) {
throw byteStreamControllerBrandCheckException('error');
}
ReadableByteStreamControllerError(this, e);
};
/** @internal */
ReadableByteStreamController.prototype[CancelSteps] = function (reason) {
ReadableByteStreamControllerClearPendingPullIntos(this);
ResetQueue(this);
var result = this._can