mirror of
https://github.com/denoland/deno.git
synced 2024-11-21 15:04:11 -05:00
c1fc7b2cd5
This commit refactors how we access "core", "internals" and "primordials" objects coming from `deno_core`, in our internal JavaScript code. Instead of capturing them from "globalThis.__bootstrap" namespace, we import them from recently added "ext:core/mod.js" file.
630 lines
18 KiB
JavaScript
630 lines
18 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Remove Intl.v8BreakIterator because it is a non-standard API.
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delete Intl.v8BreakIterator;
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import { core, internals, primordials } from "ext:core/mod.js";
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const ops = core.ops;
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const {
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ArrayPrototypeFilter,
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ArrayPrototypeIncludes,
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ArrayPrototypeMap,
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DateNow,
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Error,
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ErrorPrototype,
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FunctionPrototypeBind,
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FunctionPrototypeCall,
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ObjectAssign,
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ObjectDefineProperties,
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ObjectDefineProperty,
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ObjectPrototypeIsPrototypeOf,
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ObjectSetPrototypeOf,
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PromisePrototypeThen,
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PromiseResolve,
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Symbol,
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SymbolIterator,
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TypeError,
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} = primordials;
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import * as util from "ext:runtime/06_util.js";
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import * as event from "ext:deno_web/02_event.js";
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import * as location from "ext:deno_web/12_location.js";
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import * as version from "ext:runtime/01_version.ts";
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import * as os from "ext:runtime/30_os.js";
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import * as timers from "ext:deno_web/02_timers.js";
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import {
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getDefaultInspectOptions,
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getNoColor,
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inspectArgs,
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quoteString,
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setNoColorFn,
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wrapConsole,
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} from "ext:deno_console/01_console.js";
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import * as performance from "ext:deno_web/15_performance.js";
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import * as url from "ext:deno_url/00_url.js";
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import * as fetch from "ext:deno_fetch/26_fetch.js";
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import * as messagePort from "ext:deno_web/13_message_port.js";
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import {
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denoNs,
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denoNsUnstable,
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denoNsUnstableById,
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} from "ext:runtime/90_deno_ns.js";
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import { errors } from "ext:runtime/01_errors.js";
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import * as webidl from "ext:deno_webidl/00_webidl.js";
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import DOMException from "ext:deno_web/01_dom_exception.js";
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import {
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mainRuntimeGlobalProperties,
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memoizeLazy,
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unstableWindowOrWorkerGlobalScope,
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windowOrWorkerGlobalScope,
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workerRuntimeGlobalProperties,
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} from "ext:runtime/98_global_scope.js";
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import { SymbolAsyncDispose, SymbolDispose } from "ext:deno_web/00_infra.js";
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// deno-lint-ignore prefer-primordials
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if (Symbol.dispose) throw "V8 supports Symbol.dispose now, no need to shim it!";
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ObjectDefineProperties(Symbol, {
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dispose: {
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value: SymbolDispose,
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enumerable: false,
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writable: false,
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configurable: false,
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},
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asyncDispose: {
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value: SymbolAsyncDispose,
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enumerable: false,
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writable: false,
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configurable: false,
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},
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});
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let windowIsClosing = false;
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let globalThis_;
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function windowClose() {
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if (!windowIsClosing) {
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windowIsClosing = true;
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// Push a macrotask to exit after a promise resolve.
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// This is not perfect, but should be fine for first pass.
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PromisePrototypeThen(
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PromiseResolve(),
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() =>
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FunctionPrototypeCall(timers.setTimeout, null, () => {
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// This should be fine, since only Window/MainWorker has .close()
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os.exit(0);
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}, 0),
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);
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}
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}
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function workerClose() {
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if (isClosing) {
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return;
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}
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isClosing = true;
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ops.op_worker_close();
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}
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function postMessage(message, transferOrOptions = {}) {
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const prefix =
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"Failed to execute 'postMessage' on 'DedicatedWorkerGlobalScope'";
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webidl.requiredArguments(arguments.length, 1, prefix);
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message = webidl.converters.any(message);
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let options;
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if (
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webidl.type(transferOrOptions) === "Object" &&
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transferOrOptions !== undefined &&
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transferOrOptions[SymbolIterator] !== undefined
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) {
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const transfer = webidl.converters["sequence<object>"](
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transferOrOptions,
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prefix,
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"Argument 2",
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);
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options = { transfer };
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} else {
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options = webidl.converters.StructuredSerializeOptions(
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transferOrOptions,
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prefix,
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"Argument 2",
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);
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}
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const { transfer } = options;
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const data = messagePort.serializeJsMessageData(message, transfer);
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ops.op_worker_post_message(data);
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}
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let isClosing = false;
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let globalDispatchEvent;
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async function pollForMessages() {
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if (!globalDispatchEvent) {
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globalDispatchEvent = FunctionPrototypeBind(
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globalThis.dispatchEvent,
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globalThis,
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);
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}
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while (!isClosing) {
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const data = await core.opAsync("op_worker_recv_message");
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if (data === null) break;
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const v = messagePort.deserializeJsMessageData(data);
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const message = v[0];
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const transferables = v[1];
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const msgEvent = new event.MessageEvent("message", {
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cancelable: false,
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data: message,
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ports: ArrayPrototypeFilter(
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transferables,
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(t) =>
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ObjectPrototypeIsPrototypeOf(messagePort.MessagePortPrototype, t),
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),
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});
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event.setIsTrusted(msgEvent, true);
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try {
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globalDispatchEvent(msgEvent);
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} catch (e) {
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const errorEvent = new event.ErrorEvent("error", {
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cancelable: true,
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message: e.message,
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lineno: e.lineNumber ? e.lineNumber + 1 : undefined,
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colno: e.columnNumber ? e.columnNumber + 1 : undefined,
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filename: e.fileName,
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error: e,
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});
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event.setIsTrusted(errorEvent, true);
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globalDispatchEvent(errorEvent);
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if (!errorEvent.defaultPrevented) {
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throw e;
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}
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}
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}
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}
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let loadedMainWorkerScript = false;
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function importScripts(...urls) {
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if (ops.op_worker_get_type() === "module") {
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throw new TypeError("Can't import scripts in a module worker.");
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}
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const baseUrl = location.getLocationHref();
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const parsedUrls = ArrayPrototypeMap(urls, (scriptUrl) => {
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try {
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return new url.URL(scriptUrl, baseUrl ?? undefined).href;
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} catch {
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throw new DOMException(
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"Failed to parse URL.",
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"SyntaxError",
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);
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}
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});
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// A classic worker's main script has looser MIME type checks than any
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// imported scripts, so we use `loadedMainWorkerScript` to distinguish them.
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// TODO(andreubotella) Refactor worker creation so the main script isn't
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// loaded with `importScripts()`.
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const scripts = ops.op_worker_sync_fetch(
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parsedUrls,
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!loadedMainWorkerScript,
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);
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loadedMainWorkerScript = true;
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for (let i = 0; i < scripts.length; ++i) {
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const { url, script } = scripts[i];
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const err = core.evalContext(script, url)[1];
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if (err !== null) {
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throw err.thrown;
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}
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}
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}
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function opMainModule() {
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return ops.op_main_module();
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}
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const opArgs = memoizeLazy(() => ops.op_bootstrap_args());
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const opPid = memoizeLazy(() => ops.op_bootstrap_pid());
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const opPpid = memoizeLazy(() => ops.op_ppid());
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setNoColorFn(() => ops.op_bootstrap_no_color() || !ops.op_bootstrap_is_tty());
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function formatException(error) {
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if (ObjectPrototypeIsPrototypeOf(ErrorPrototype, error)) {
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return null;
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} else if (typeof error == "string") {
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return `Uncaught ${
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inspectArgs([quoteString(error, getDefaultInspectOptions())], {
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colors: !getNoColor(),
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})
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}`;
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} else {
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return `Uncaught ${inspectArgs([error], { colors: !getNoColor() })}`;
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}
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}
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core.registerErrorClass("NotFound", errors.NotFound);
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core.registerErrorClass("PermissionDenied", errors.PermissionDenied);
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core.registerErrorClass("ConnectionRefused", errors.ConnectionRefused);
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core.registerErrorClass("ConnectionReset", errors.ConnectionReset);
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core.registerErrorClass("ConnectionAborted", errors.ConnectionAborted);
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core.registerErrorClass("NotConnected", errors.NotConnected);
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core.registerErrorClass("AddrInUse", errors.AddrInUse);
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core.registerErrorClass("AddrNotAvailable", errors.AddrNotAvailable);
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core.registerErrorClass("BrokenPipe", errors.BrokenPipe);
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core.registerErrorClass("AlreadyExists", errors.AlreadyExists);
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core.registerErrorClass("InvalidData", errors.InvalidData);
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core.registerErrorClass("TimedOut", errors.TimedOut);
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core.registerErrorClass("Interrupted", errors.Interrupted);
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core.registerErrorClass("WouldBlock", errors.WouldBlock);
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core.registerErrorClass("WriteZero", errors.WriteZero);
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core.registerErrorClass("UnexpectedEof", errors.UnexpectedEof);
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core.registerErrorClass("BadResource", errors.BadResource);
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core.registerErrorClass("Http", errors.Http);
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core.registerErrorClass("Busy", errors.Busy);
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core.registerErrorClass("NotSupported", errors.NotSupported);
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core.registerErrorClass("FilesystemLoop", errors.FilesystemLoop);
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core.registerErrorClass("IsADirectory", errors.IsADirectory);
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core.registerErrorClass("NetworkUnreachable", errors.NetworkUnreachable);
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core.registerErrorClass("NotADirectory", errors.NotADirectory);
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core.registerErrorBuilder(
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"DOMExceptionOperationError",
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function DOMExceptionOperationError(msg) {
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return new DOMException(msg, "OperationError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionQuotaExceededError",
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function DOMExceptionQuotaExceededError(msg) {
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return new DOMException(msg, "QuotaExceededError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionNotSupportedError",
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function DOMExceptionNotSupportedError(msg) {
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return new DOMException(msg, "NotSupported");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionNetworkError",
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function DOMExceptionNetworkError(msg) {
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return new DOMException(msg, "NetworkError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionAbortError",
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function DOMExceptionAbortError(msg) {
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return new DOMException(msg, "AbortError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionInvalidCharacterError",
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function DOMExceptionInvalidCharacterError(msg) {
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return new DOMException(msg, "InvalidCharacterError");
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},
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);
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core.registerErrorBuilder(
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"DOMExceptionDataError",
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function DOMExceptionDataError(msg) {
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return new DOMException(msg, "DataError");
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},
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);
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function runtimeStart(
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denoVersion,
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v8Version,
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tsVersion,
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target,
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) {
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core.setMacrotaskCallback(timers.handleTimerMacrotask);
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core.setWasmStreamingCallback(fetch.handleWasmStreaming);
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core.setReportExceptionCallback(event.reportException);
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ops.op_set_format_exception_callback(formatException);
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version.setVersions(
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denoVersion,
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v8Version,
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tsVersion,
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);
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core.setBuildInfo(target);
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}
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core.setUnhandledPromiseRejectionHandler(processUnhandledPromiseRejection);
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// Notification that the core received an unhandled promise rejection that is about to
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// terminate the runtime. If we can handle it, attempt to do so.
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function processUnhandledPromiseRejection(promise, reason) {
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const rejectionEvent = new event.PromiseRejectionEvent(
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"unhandledrejection",
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{
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cancelable: true,
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promise,
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reason,
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},
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);
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// Note that the handler may throw, causing a recursive "error" event
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globalThis_.dispatchEvent(rejectionEvent);
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// If event was not yet prevented, try handing it off to Node compat layer
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// (if it was initialized)
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if (
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!rejectionEvent.defaultPrevented &&
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typeof internals.nodeProcessUnhandledRejectionCallback !== "undefined"
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) {
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internals.nodeProcessUnhandledRejectionCallback(rejectionEvent);
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}
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// If event was not prevented (or "unhandledrejection" listeners didn't
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// throw) we will let Rust side handle it.
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if (rejectionEvent.defaultPrevented) {
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return true;
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}
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return false;
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}
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let hasBootstrapped = false;
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// Delete the `console` object that V8 automaticaly adds onto the global wrapper
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// object on context creation. We don't want this console object to shadow the
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// `console` object exposed by the ext/node globalThis proxy.
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delete globalThis.console;
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// Set up global properties shared by main and worker runtime.
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ObjectDefineProperties(globalThis, windowOrWorkerGlobalScope);
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// FIXME(bartlomieju): temporarily add whole `Deno.core` to
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// `Deno[Deno.internal]` namespace. It should be removed and only necessary
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// methods should be left there.
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ObjectAssign(internals, { core });
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const internalSymbol = Symbol("Deno.internal");
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const finalDenoNs = {
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internal: internalSymbol,
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[internalSymbol]: internals,
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resources: core.resources,
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close: core.close,
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...denoNs,
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// Deno.test and Deno.bench are noops here, but kept for compatibility; so
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// that they don't cause errors when used outside of `deno test`/`deno bench`
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// contexts.
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test: () => {},
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bench: () => {},
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};
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const {
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denoVersion,
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tsVersion,
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v8Version,
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target,
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} = ops.op_snapshot_options();
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function bootstrapMainRuntime(runtimeOptions) {
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if (hasBootstrapped) {
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throw new Error("Worker runtime already bootstrapped");
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}
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const nodeBootstrap = globalThis.nodeBootstrap;
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const {
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0: location_,
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1: unstableFlag,
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2: unstableFeatures,
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3: inspectFlag,
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5: hasNodeModulesDir,
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6: maybeBinaryNpmCommandName,
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} = runtimeOptions;
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performance.setTimeOrigin(DateNow());
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globalThis_ = globalThis;
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// Remove bootstrapping data from the global scope
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delete globalThis.__bootstrap;
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delete globalThis.bootstrap;
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delete globalThis.nodeBootstrap;
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hasBootstrapped = true;
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// If the `--location` flag isn't set, make `globalThis.location` `undefined` and
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// writable, so that they can mock it themselves if they like. If the flag was
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// set, define `globalThis.location`, using the provided value.
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if (location_ == null) {
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mainRuntimeGlobalProperties.location = {
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writable: true,
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};
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} else {
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location.setLocationHref(location_);
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}
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if (unstableFlag) {
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ObjectDefineProperties(globalThis, unstableWindowOrWorkerGlobalScope);
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}
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ObjectDefineProperties(globalThis, mainRuntimeGlobalProperties);
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ObjectDefineProperties(globalThis, {
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// TODO(bartlomieju): in the future we might want to change the
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// behavior of setting `name` to actually update the process name.
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// Empty string matches what browsers do.
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name: util.writable(""),
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close: util.writable(windowClose),
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closed: util.getterOnly(() => windowIsClosing),
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});
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ObjectSetPrototypeOf(globalThis, Window.prototype);
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if (inspectFlag) {
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const consoleFromV8 = core.console;
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const consoleFromDeno = globalThis.console;
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wrapConsole(consoleFromDeno, consoleFromV8);
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}
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event.setEventTargetData(globalThis);
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event.saveGlobalThisReference(globalThis);
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event.defineEventHandler(globalThis, "error");
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event.defineEventHandler(globalThis, "load");
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event.defineEventHandler(globalThis, "beforeunload");
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event.defineEventHandler(globalThis, "unload");
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event.defineEventHandler(globalThis, "unhandledrejection");
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runtimeStart(
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denoVersion,
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v8Version,
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tsVersion,
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target,
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);
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ObjectDefineProperties(finalDenoNs, {
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pid: util.getterOnly(opPid),
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ppid: util.getterOnly(opPpid),
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noColor: util.getterOnly(() => ops.op_bootstrap_no_color()),
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args: util.getterOnly(opArgs),
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mainModule: util.getterOnly(opMainModule),
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});
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// TODO(bartlomieju): deprecate --unstable
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if (unstableFlag) {
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ObjectAssign(finalDenoNs, denoNsUnstable);
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// TODO(bartlomieju): this is not ideal, but because we use `ObjectAssign`
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// above any properties that are defined elsewhere using `Object.defineProperty`
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// are lost.
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let jupyterNs = undefined;
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ObjectDefineProperty(finalDenoNs, "jupyter", {
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get() {
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if (jupyterNs) {
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return jupyterNs;
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}
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throw new Error(
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"Deno.jupyter is only available in `deno jupyter` subcommand.",
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);
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},
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set(val) {
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jupyterNs = val;
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},
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});
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} else {
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for (let i = 0; i <= unstableFeatures.length; i++) {
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const id = unstableFeatures[i];
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ObjectAssign(finalDenoNs, denoNsUnstableById[id]);
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}
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}
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if (!ArrayPrototypeIncludes(unstableFeatures, /* unsafe-proto */ 8)) {
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// Removes the `__proto__` for security reasons.
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// https://tc39.es/ecma262/#sec-get-object.prototype.__proto__
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delete Object.prototype.__proto__;
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}
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// Setup `Deno` global - we're actually overriding already existing global
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// `Deno` with `Deno` namespace from "./deno.ts".
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ObjectDefineProperty(globalThis, "Deno", util.readOnly(finalDenoNs));
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if (nodeBootstrap) {
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nodeBootstrap(hasNodeModulesDir, maybeBinaryNpmCommandName);
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}
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}
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function bootstrapWorkerRuntime(
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runtimeOptions,
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name,
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internalName,
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) {
|
|
if (hasBootstrapped) {
|
|
throw new Error("Worker runtime already bootstrapped");
|
|
}
|
|
|
|
const nodeBootstrap = globalThis.nodeBootstrap;
|
|
|
|
const {
|
|
0: location_,
|
|
1: unstableFlag,
|
|
2: unstableFeatures,
|
|
4: enableTestingFeaturesFlag,
|
|
5: hasNodeModulesDir,
|
|
6: maybeBinaryNpmCommandName,
|
|
} = runtimeOptions;
|
|
|
|
performance.setTimeOrigin(DateNow());
|
|
globalThis_ = globalThis;
|
|
|
|
const consoleFromV8 = globalThis.Deno.core.console;
|
|
|
|
// Remove bootstrapping data from the global scope
|
|
delete globalThis.__bootstrap;
|
|
delete globalThis.bootstrap;
|
|
delete globalThis.nodeBootstrap;
|
|
hasBootstrapped = true;
|
|
|
|
if (unstableFlag) {
|
|
ObjectDefineProperties(globalThis, unstableWindowOrWorkerGlobalScope);
|
|
}
|
|
ObjectDefineProperties(globalThis, workerRuntimeGlobalProperties);
|
|
ObjectDefineProperties(globalThis, {
|
|
name: util.writable(name),
|
|
// TODO(bartlomieju): should be readonly?
|
|
close: util.nonEnumerable(workerClose),
|
|
postMessage: util.writable(postMessage),
|
|
});
|
|
if (enableTestingFeaturesFlag) {
|
|
ObjectDefineProperty(
|
|
globalThis,
|
|
"importScripts",
|
|
util.writable(importScripts),
|
|
);
|
|
}
|
|
ObjectSetPrototypeOf(globalThis, DedicatedWorkerGlobalScope.prototype);
|
|
|
|
const consoleFromDeno = globalThis.console;
|
|
wrapConsole(consoleFromDeno, consoleFromV8);
|
|
|
|
event.setEventTargetData(globalThis);
|
|
event.saveGlobalThisReference(globalThis);
|
|
|
|
event.defineEventHandler(self, "message");
|
|
event.defineEventHandler(self, "error", undefined, true);
|
|
event.defineEventHandler(self, "unhandledrejection");
|
|
|
|
// `Deno.exit()` is an alias to `self.close()`. Setting and exit
|
|
// code using an op in worker context is a no-op.
|
|
os.setExitHandler((_exitCode) => {
|
|
workerClose();
|
|
});
|
|
|
|
runtimeStart(
|
|
denoVersion,
|
|
v8Version,
|
|
tsVersion,
|
|
target,
|
|
internalName ?? name,
|
|
);
|
|
|
|
location.setLocationHref(location_);
|
|
|
|
globalThis.pollForMessages = pollForMessages;
|
|
|
|
// TODO(bartlomieju): deprecate --unstable
|
|
if (unstableFlag) {
|
|
ObjectAssign(finalDenoNs, denoNsUnstable);
|
|
} else {
|
|
for (let i = 0; i <= unstableFeatures.length; i++) {
|
|
const id = unstableFeatures[i];
|
|
ObjectAssign(finalDenoNs, denoNsUnstableById[id]);
|
|
}
|
|
}
|
|
|
|
if (!ArrayPrototypeIncludes(unstableFeatures, /* unsafe-proto */ 8)) {
|
|
// Removes the `__proto__` for security reasons.
|
|
// https://tc39.es/ecma262/#sec-get-object.prototype.__proto__
|
|
delete Object.prototype.__proto__;
|
|
}
|
|
|
|
ObjectDefineProperties(finalDenoNs, {
|
|
pid: util.getterOnly(opPid),
|
|
noColor: util.getterOnly(() => ops.op_bootstrap_no_color()),
|
|
args: util.getterOnly(opArgs),
|
|
});
|
|
// Setup `Deno` global - we're actually overriding already
|
|
// existing global `Deno` with `Deno` namespace from "./deno.ts".
|
|
ObjectDefineProperty(globalThis, "Deno", util.readOnly(finalDenoNs));
|
|
|
|
if (nodeBootstrap) {
|
|
nodeBootstrap(hasNodeModulesDir, maybeBinaryNpmCommandName);
|
|
}
|
|
}
|
|
|
|
globalThis.bootstrap = {
|
|
mainRuntime: bootstrapMainRuntime,
|
|
workerRuntime: bootstrapWorkerRuntime,
|
|
};
|