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denoland-deno/runtime/js/99_main.js
Luca Casonato 62716422b9
chore(console): distinguish between log levels (#9824)
Change `Console.#printFunc` to pass a log level as the second argument
(0 = debug, 3 = error), instead of a boolean for `isErr`. This does not
change the Deno runtime behaviour at all.
2021-03-18 19:25:25 +01:00

533 lines
18 KiB
JavaScript

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// Removes the `__proto__` for security reasons. This intentionally makes
// Deno non compliant with ECMA-262 Annex B.2.2.1
//
"use strict";
delete Object.prototype.__proto__;
((window) => {
const core = Deno.core;
const util = window.__bootstrap.util;
const eventTarget = window.__bootstrap.eventTarget;
const globalInterfaces = window.__bootstrap.globalInterfaces;
const location = window.__bootstrap.location;
const build = window.__bootstrap.build;
const version = window.__bootstrap.version;
const errorStack = window.__bootstrap.errorStack;
const os = window.__bootstrap.os;
const timers = window.__bootstrap.timers;
const Console = window.__bootstrap.console.Console;
const worker = window.__bootstrap.worker;
const signals = window.__bootstrap.signals;
const internals = window.__bootstrap.internals;
const performance = window.__bootstrap.performance;
const crypto = window.__bootstrap.crypto;
const url = window.__bootstrap.url;
const headers = window.__bootstrap.headers;
const streams = window.__bootstrap.streams;
const fileReader = window.__bootstrap.fileReader;
const webgpu = window.__bootstrap.webgpu;
const webSocket = window.__bootstrap.webSocket;
const file = window.__bootstrap.file;
const fetch = window.__bootstrap.fetch;
const prompt = window.__bootstrap.prompt;
const denoNs = window.__bootstrap.denoNs;
const denoNsUnstable = window.__bootstrap.denoNsUnstable;
const errors = window.__bootstrap.errors.errors;
const webidl = window.__bootstrap.webidl;
const { defineEventHandler } = window.__bootstrap.webUtil;
let windowIsClosing = false;
function windowClose() {
if (!windowIsClosing) {
windowIsClosing = true;
// Push a macrotask to exit after a promise resolve.
// This is not perfect, but should be fine for first pass.
Promise.resolve().then(() =>
timers.setTimeout.call(
null,
() => {
// This should be fine, since only Window/MainWorker has .close()
os.exit(0);
},
0,
)
);
}
}
const encoder = new TextEncoder();
function workerClose() {
if (isClosing) {
return;
}
isClosing = true;
opCloseWorker();
}
// TODO(bartlomieju): remove these functions
// Stuff for workers
const onmessage = () => {};
const onerror = () => {};
function postMessage(data) {
const dataJson = JSON.stringify(data);
const dataIntArray = encoder.encode(dataJson);
opPostMessage(dataIntArray);
}
let isClosing = false;
async function workerMessageRecvCallback(data) {
const msgEvent = new MessageEvent("message", {
cancelable: false,
data,
});
try {
if (globalThis["onmessage"]) {
const result = globalThis.onmessage(msgEvent);
if (result && "then" in result) {
await result;
}
}
globalThis.dispatchEvent(msgEvent);
} catch (e) {
let handled = false;
const errorEvent = new ErrorEvent("error", {
cancelable: true,
message: e.message,
lineno: e.lineNumber ? e.lineNumber + 1 : undefined,
colno: e.columnNumber ? e.columnNumber + 1 : undefined,
filename: e.fileName,
error: null,
});
if (globalThis["onerror"]) {
const ret = globalThis.onerror(
e.message,
e.fileName,
e.lineNumber,
e.columnNumber,
e,
);
handled = ret === true;
}
globalThis.dispatchEvent(errorEvent);
if (errorEvent.defaultPrevented) {
handled = true;
}
if (!handled) {
throw e;
}
}
}
function opPostMessage(data) {
core.jsonOpSync("op_worker_post_message", {}, data);
}
function opCloseWorker() {
core.jsonOpSync("op_worker_close");
}
function opMainModule() {
return core.jsonOpSync("op_main_module");
}
function runtimeStart(runtimeOptions, source) {
core.ops();
core.setMacrotaskCallback(timers.handleTimerMacrotask);
version.setVersions(
runtimeOptions.denoVersion,
runtimeOptions.v8Version,
runtimeOptions.tsVersion,
);
build.setBuildInfo(runtimeOptions.target);
util.setLogDebug(runtimeOptions.debugFlag, source);
// TODO(bartlomieju): a very crude way to disable
// source mapping of errors. This condition is true
// only for compiled standalone binaries.
let prepareStackTrace;
if (runtimeOptions.applySourceMaps) {
prepareStackTrace = core.createPrepareStackTrace(
errorStack.opApplySourceMap,
);
} else {
prepareStackTrace = core.createPrepareStackTrace();
}
Error.prepareStackTrace = prepareStackTrace;
}
function registerErrors() {
core.registerErrorClass("NotFound", errors.NotFound);
core.registerErrorClass("PermissionDenied", errors.PermissionDenied);
core.registerErrorClass("ConnectionRefused", errors.ConnectionRefused);
core.registerErrorClass("ConnectionReset", errors.ConnectionReset);
core.registerErrorClass("ConnectionAborted", errors.ConnectionAborted);
core.registerErrorClass("NotConnected", errors.NotConnected);
core.registerErrorClass("AddrInUse", errors.AddrInUse);
core.registerErrorClass("AddrNotAvailable", errors.AddrNotAvailable);
core.registerErrorClass("BrokenPipe", errors.BrokenPipe);
core.registerErrorClass("AlreadyExists", errors.AlreadyExists);
core.registerErrorClass("InvalidData", errors.InvalidData);
core.registerErrorClass("TimedOut", errors.TimedOut);
core.registerErrorClass("Interrupted", errors.Interrupted);
core.registerErrorClass("WriteZero", errors.WriteZero);
core.registerErrorClass("UnexpectedEof", errors.UnexpectedEof);
core.registerErrorClass("BadResource", errors.BadResource);
core.registerErrorClass("Http", errors.Http);
core.registerErrorClass("Busy", errors.Busy);
core.registerErrorClass("NotSupported", errors.NotSupported);
core.registerErrorClass("Error", Error);
core.registerErrorClass("RangeError", RangeError);
core.registerErrorClass("ReferenceError", ReferenceError);
core.registerErrorClass("SyntaxError", SyntaxError);
core.registerErrorClass("TypeError", TypeError);
core.registerErrorClass("URIError", URIError);
core.registerErrorClass(
"DOMExceptionOperationError",
DOMException,
"OperationError",
);
}
class Navigator {
constructor() {
webidl.illegalConstructor();
}
[Symbol.for("Deno.customInspect")](inspect) {
return `${this.constructor.name} ${inspect({})}`;
}
}
const navigator = webidl.createBranded(Navigator);
Object.defineProperties(Navigator.prototype, {
gpu: {
configurable: true,
enumerable: true,
get() {
webidl.assertBranded(this, Navigator);
return webgpu.gpu;
},
},
});
class WorkerNavigator {
constructor() {
webidl.illegalConstructor();
}
[Symbol.for("Deno.customInspect")](inspect) {
return `${this.constructor.name} ${inspect({})}`;
}
}
const workerNavigator = webidl.createBranded(WorkerNavigator);
Object.defineProperties(WorkerNavigator.prototype, {
gpu: {
configurable: true,
enumerable: true,
get() {
webidl.assertBranded(this, WorkerNavigator);
return webgpu.gpu;
},
},
});
// https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope
const windowOrWorkerGlobalScope = {
Blob: util.nonEnumerable(file.Blob),
ByteLengthQueuingStrategy: util.nonEnumerable(
streams.ByteLengthQueuingStrategy,
),
CloseEvent: util.nonEnumerable(CloseEvent),
CountQueuingStrategy: util.nonEnumerable(
streams.CountQueuingStrategy,
),
CustomEvent: util.nonEnumerable(CustomEvent),
DOMException: util.nonEnumerable(DOMException),
ErrorEvent: util.nonEnumerable(ErrorEvent),
Event: util.nonEnumerable(Event),
EventTarget: util.nonEnumerable(EventTarget),
File: util.nonEnumerable(file.File),
FileReader: util.nonEnumerable(fileReader.FileReader),
FormData: util.nonEnumerable(fetch.FormData),
Headers: util.nonEnumerable(headers.Headers),
MessageEvent: util.nonEnumerable(MessageEvent),
Performance: util.nonEnumerable(performance.Performance),
PerformanceEntry: util.nonEnumerable(performance.PerformanceEntry),
PerformanceMark: util.nonEnumerable(performance.PerformanceMark),
PerformanceMeasure: util.nonEnumerable(performance.PerformanceMeasure),
ProgressEvent: util.nonEnumerable(ProgressEvent),
ReadableStream: util.nonEnumerable(streams.ReadableStream),
ReadableStreamDefaultReader: util.nonEnumerable(
streams.ReadableStreamDefaultReader,
),
Request: util.nonEnumerable(fetch.Request),
Response: util.nonEnumerable(fetch.Response),
TextDecoder: util.nonEnumerable(TextDecoder),
TextEncoder: util.nonEnumerable(TextEncoder),
TransformStream: util.nonEnumerable(streams.TransformStream),
URL: util.nonEnumerable(url.URL),
URLSearchParams: util.nonEnumerable(url.URLSearchParams),
WebSocket: util.nonEnumerable(webSocket.WebSocket),
Worker: util.nonEnumerable(worker.Worker),
WritableStream: util.nonEnumerable(streams.WritableStream),
WritableStreamDefaultWriter: util.nonEnumerable(
streams.WritableStreamDefaultWriter,
),
atob: util.writable(atob),
btoa: util.writable(btoa),
clearInterval: util.writable(timers.clearInterval),
clearTimeout: util.writable(timers.clearTimeout),
console: util.writable(
new Console((msg, level) => core.print(msg, level > 1)),
),
crypto: util.readOnly(crypto),
fetch: util.writable(fetch.fetch),
performance: util.writable(performance.performance),
setInterval: util.writable(timers.setInterval),
setTimeout: util.writable(timers.setTimeout),
GPU: util.nonEnumerable(webgpu.GPU),
GPUAdapter: util.nonEnumerable(webgpu.GPUAdapter),
GPUAdapterLimits: util.nonEnumerable(webgpu.GPUAdapterLimits),
GPUAdapterFeatures: util.nonEnumerable(webgpu.GPUAdapterFeatures),
GPUDevice: util.nonEnumerable(webgpu.GPUDevice),
GPUQueue: util.nonEnumerable(webgpu.GPUQueue),
GPUBuffer: util.nonEnumerable(webgpu.GPUBuffer),
GPUBufferUsage: util.nonEnumerable(webgpu.GPUBufferUsage),
GPUMapMode: util.nonEnumerable(webgpu.GPUMapMode),
GPUTexture: util.nonEnumerable(webgpu.GPUTexture),
GPUTextureUsage: util.nonEnumerable(webgpu.GPUTextureUsage),
GPUTextureView: util.nonEnumerable(webgpu.GPUTextureView),
GPUSampler: util.nonEnumerable(webgpu.GPUSampler),
GPUBindGroupLayout: util.nonEnumerable(webgpu.GPUBindGroupLayout),
GPUPipelineLayout: util.nonEnumerable(webgpu.GPUPipelineLayout),
GPUBindGroup: util.nonEnumerable(webgpu.GPUBindGroup),
GPUShaderModule: util.nonEnumerable(webgpu.GPUShaderModule),
GPUShaderStage: util.nonEnumerable(webgpu.GPUShaderStage),
GPUComputePipeline: util.nonEnumerable(webgpu.GPUComputePipeline),
GPURenderPipeline: util.nonEnumerable(webgpu.GPURenderPipeline),
GPUColorWrite: util.nonEnumerable(webgpu.GPUColorWrite),
GPUCommandEncoder: util.nonEnumerable(webgpu.GPUCommandEncoder),
GPURenderPassEncoder: util.nonEnumerable(webgpu.GPURenderPassEncoder),
GPUComputePassEncoder: util.nonEnumerable(webgpu.GPUComputePassEncoder),
GPUCommandBuffer: util.nonEnumerable(webgpu.GPUCommandBuffer),
GPURenderBundleEncoder: util.nonEnumerable(webgpu.GPURenderBundleEncoder),
GPURenderBundle: util.nonEnumerable(webgpu.GPURenderBundle),
GPUQuerySet: util.nonEnumerable(webgpu.GPUQuerySet),
GPUOutOfMemoryError: util.nonEnumerable(webgpu.GPUOutOfMemoryError),
GPUValidationError: util.nonEnumerable(webgpu.GPUValidationError),
};
// The console seems to be the only one that should be writable and non-enumerable
// thus we don't have a unique helper for it. If other properties follow the same
// structure, it might be worth it to define a helper in `util`
windowOrWorkerGlobalScope.console.enumerable = false;
const mainRuntimeGlobalProperties = {
Location: location.locationConstructorDescriptor,
location: location.locationDescriptor,
Window: globalInterfaces.windowConstructorDescriptor,
window: util.readOnly(globalThis),
self: util.readOnly(globalThis),
Navigator: util.nonEnumerable(Navigator),
navigator: {
configurable: true,
enumerable: true,
get: () => navigator,
},
// TODO(bartlomieju): from MDN docs (https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope)
// it seems those two properties should be available to workers as well
onload: util.writable(null),
onunload: util.writable(null),
close: util.writable(windowClose),
closed: util.getterOnly(() => windowIsClosing),
alert: util.writable(prompt.alert),
confirm: util.writable(prompt.confirm),
prompt: util.writable(prompt.prompt),
};
const workerRuntimeGlobalProperties = {
WorkerLocation: location.workerLocationConstructorDescriptor,
location: location.workerLocationDescriptor,
WorkerGlobalScope: globalInterfaces.workerGlobalScopeConstructorDescriptor,
DedicatedWorkerGlobalScope:
globalInterfaces.dedicatedWorkerGlobalScopeConstructorDescriptor,
WorkerNavigator: util.nonEnumerable(WorkerNavigator),
navigator: {
configurable: true,
enumerable: true,
get: () => workerNavigator,
},
self: util.readOnly(globalThis),
onmessage: util.writable(onmessage),
onerror: util.writable(onerror),
// TODO(bartlomieju): should be readonly?
close: util.nonEnumerable(workerClose),
postMessage: util.writable(postMessage),
workerMessageRecvCallback: util.nonEnumerable(workerMessageRecvCallback),
};
let hasBootstrapped = false;
function bootstrapMainRuntime(runtimeOptions) {
if (hasBootstrapped) {
throw new Error("Worker runtime already bootstrapped");
}
// Remove bootstrapping data from the global scope
delete globalThis.__bootstrap;
delete globalThis.bootstrap;
util.log("bootstrapMainRuntime");
hasBootstrapped = true;
Object.defineProperties(globalThis, windowOrWorkerGlobalScope);
Object.defineProperties(globalThis, mainRuntimeGlobalProperties);
Object.setPrototypeOf(globalThis, Window.prototype);
eventTarget.setEventTargetData(globalThis);
defineEventHandler(window, "load", null);
defineEventHandler(window, "unload", null);
const isUnloadDispatched = Symbol.for("isUnloadDispatched");
// Stores the flag for checking whether unload is dispatched or not.
// This prevents the recursive dispatches of unload events.
// See https://github.com/denoland/deno/issues/9201.
window[isUnloadDispatched] = false;
window.addEventListener("unload", () => {
window[isUnloadDispatched] = true;
});
runtimeStart(runtimeOptions);
const {
args,
location: locationHref,
noColor,
pid,
ppid,
unstableFlag,
} = runtimeOptions;
if (locationHref != null) {
location.setLocationHref(locationHref);
fetch.setBaseUrl(locationHref);
}
registerErrors();
const internalSymbol = Symbol("Deno.internal");
const finalDenoNs = {
core,
internal: internalSymbol,
[internalSymbol]: internals,
resources: core.resources,
close: core.close,
...denoNs,
};
Object.defineProperties(finalDenoNs, {
pid: util.readOnly(pid),
ppid: util.readOnly(ppid),
noColor: util.readOnly(noColor),
args: util.readOnly(Object.freeze(args)),
mainModule: util.getterOnly(opMainModule),
});
if (unstableFlag) {
Object.assign(finalDenoNs, denoNsUnstable);
}
// Setup `Deno` global - we're actually overriding already
// existing global `Deno` with `Deno` namespace from "./deno.ts".
util.immutableDefine(globalThis, "Deno", finalDenoNs);
Object.freeze(globalThis.Deno);
Object.freeze(globalThis.Deno.core);
Object.freeze(globalThis.Deno.core.sharedQueue);
signals.setSignals();
util.log("args", args);
}
function bootstrapWorkerRuntime(
runtimeOptions,
name,
useDenoNamespace,
internalName,
) {
if (hasBootstrapped) {
throw new Error("Worker runtime already bootstrapped");
}
// Remove bootstrapping data from the global scope
delete globalThis.__bootstrap;
delete globalThis.bootstrap;
util.log("bootstrapWorkerRuntime");
hasBootstrapped = true;
Object.defineProperties(globalThis, windowOrWorkerGlobalScope);
Object.defineProperties(globalThis, workerRuntimeGlobalProperties);
Object.defineProperties(globalThis, { name: util.readOnly(name) });
Object.setPrototypeOf(globalThis, DedicatedWorkerGlobalScope.prototype);
eventTarget.setEventTargetData(globalThis);
runtimeStart(
runtimeOptions,
internalName ?? name,
);
const { unstableFlag, pid, noColor, args, location: locationHref } =
runtimeOptions;
location.setLocationHref(locationHref);
fetch.setBaseUrl(locationHref);
registerErrors();
const internalSymbol = Symbol("Deno.internal");
const finalDenoNs = {
core,
internal: internalSymbol,
[internalSymbol]: internals,
resources: core.resources,
close: core.close,
...denoNs,
};
if (useDenoNamespace) {
if (unstableFlag) {
Object.assign(finalDenoNs, denoNsUnstable);
}
Object.defineProperties(finalDenoNs, {
pid: util.readOnly(pid),
noColor: util.readOnly(noColor),
args: util.readOnly(Object.freeze(args)),
});
// Setup `Deno` global - we're actually overriding already
// existing global `Deno` with `Deno` namespace from "./deno.ts".
util.immutableDefine(globalThis, "Deno", finalDenoNs);
Object.freeze(globalThis.Deno);
Object.freeze(globalThis.Deno.core);
Object.freeze(globalThis.Deno.core.sharedQueue);
signals.setSignals();
} else {
delete globalThis.Deno;
util.assert(globalThis.Deno === undefined);
}
}
Object.defineProperties(globalThis, {
bootstrap: {
value: {
mainRuntime: bootstrapMainRuntime,
workerRuntime: bootstrapWorkerRuntime,
},
configurable: true,
},
});
})(this);