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denoland-deno/cli/rt/99_main.js
Bartek Iwańczuk bda9379385
refactor: move op_resources and op_close to deno_core (#7539)
Moves op_close and op_resources to deno_core::ops and exports them.
Adds serde dependency to deno_core and reexports it.

Moves JS implementation of those ops to Deno.core and reexports them in Deno.
2020-09-17 18:09:50 +02:00

401 lines
14 KiB
JavaScript

// Removes the `__proto__` for security reasons. This intentionally makes
// Deno non compliant with ECMA-262 Annex B.2.2.1
//
delete Object.prototype.__proto__;
((window) => {
const core = Deno.core;
const util = window.__bootstrap.util;
const eventTarget = window.__bootstrap.eventTarget;
const dispatchMinimal = window.__bootstrap.dispatchMinimal;
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 replLoop = window.__bootstrap.repl.replLoop;
const Console = window.__bootstrap.console.Console;
const worker = window.__bootstrap.worker;
const signals = window.__bootstrap.signals;
const { internalSymbol, internalObject } = window.__bootstrap.internals;
const performance = window.__bootstrap.performance;
const crypto = window.__bootstrap.crypto;
const url = window.__bootstrap.url;
const headers = window.__bootstrap.headers;
const queuingStrategy = window.__bootstrap.queuingStrategy;
const streams = window.__bootstrap.streams;
const blob = window.__bootstrap.blob;
const domFile = window.__bootstrap.domFile;
const progressEvent = window.__bootstrap.progressEvent;
const fileReader = window.__bootstrap.fileReader;
const formData = window.__bootstrap.formData;
const webSocket = window.__bootstrap.webSocket;
const request = window.__bootstrap.request;
const fetch = window.__bootstrap.fetch;
const denoNs = window.__bootstrap.denoNs;
const denoNsUnstable = window.__bootstrap.denoNsUnstable;
const errors = window.__bootstrap.errors.errors;
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 funtions
// 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 opStart() {
return core.jsonOpSync("op_start");
}
function opMainModule() {
return core.jsonOpSync("op_main_module");
}
// TODO(bartlomieju): temporary solution, must be fixed when moving
// dispatches to separate crates
function initOps() {
const opsMap = core.ops();
for (const [name, opId] of Object.entries(opsMap)) {
if (name === "op_write" || name === "op_read") {
core.setAsyncHandler(opId, dispatchMinimal.asyncMsgFromRust);
}
}
core.setMacrotaskCallback(timers.handleTimerMacrotask);
}
function runtimeStart(source) {
initOps();
// First we send an empty `Start` message to let the privileged side know we
// are ready. The response should be a `StartRes` message containing the CLI
// args and other info.
const s = opStart();
version.setVersions(s.denoVersion, s.v8Version, s.tsVersion);
build.setBuildInfo(s.target);
util.setLogDebug(s.debugFlag, source);
errorStack.setPrepareStackTrace(Error);
return s;
}
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);
}
// https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope
const windowOrWorkerGlobalScope = {
Blob: util.nonEnumerable(blob.Blob),
ByteLengthQueuingStrategy: util.nonEnumerable(
queuingStrategy.ByteLengthQueuingStrategy,
),
CloseEvent: util.nonEnumerable(CloseEvent),
CountQueuingStrategy: util.nonEnumerable(
queuingStrategy.CountQueuingStrategy,
),
CustomEvent: util.nonEnumerable(CustomEvent),
DOMException: util.nonEnumerable(DOMException),
ErrorEvent: util.nonEnumerable(ErrorEvent),
Event: util.nonEnumerable(Event),
EventTarget: util.nonEnumerable(EventTarget),
File: util.nonEnumerable(domFile.DomFile),
FileReader: util.nonEnumerable(fileReader.FileReader),
FormData: util.nonEnumerable(formData.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.ProgressEvent),
ReadableStream: util.nonEnumerable(streams.ReadableStream),
Request: util.nonEnumerable(request.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),
addEventListener: util.readOnly(EventTarget.prototype.addEventListener),
atob: util.writable(atob),
btoa: util.writable(btoa),
clearInterval: util.writable(timers.clearInterval),
clearTimeout: util.writable(timers.clearTimeout),
console: util.writable(new Console(core.print)),
crypto: util.readOnly(crypto),
dispatchEvent: util.readOnly(EventTarget.prototype.dispatchEvent),
fetch: util.writable(fetch.fetch),
performance: util.writable(new performance.Performance()),
removeEventListener: util.readOnly(
EventTarget.prototype.removeEventListener,
),
setInterval: util.writable(timers.setInterval),
setTimeout: util.writable(timers.setTimeout),
};
const mainRuntimeGlobalProperties = {
window: util.readOnly(globalThis),
self: util.readOnly(globalThis),
// 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),
};
const workerRuntimeGlobalProperties = {
self: util.readOnly(globalThis),
onmessage: util.writable(onmessage),
onerror: util.writable(onerror),
// TODO: should be readonly?
close: util.nonEnumerable(workerClose),
postMessage: util.writable(postMessage),
workerMessageRecvCallback: util.nonEnumerable(workerMessageRecvCallback),
};
let hasBootstrapped = false;
function bootstrapMainRuntime() {
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);
eventTarget.setEventTargetData(globalThis);
// Registers the handler for window.onload function.
globalThis.addEventListener("load", (e) => {
const { onload } = globalThis;
if (typeof onload === "function") {
onload(e);
}
});
// Registers the handler for window.onunload function.
globalThis.addEventListener("unload", (e) => {
const { onunload } = globalThis;
if (typeof onunload === "function") {
onunload(e);
}
});
const { args, cwd, noColor, pid, ppid, repl, unstableFlag } =
runtimeStart();
registerErrors();
const finalDenoNs = {
core,
internal: internalSymbol,
[internalSymbol]: internalObject,
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("cwd", cwd);
util.log("args", args);
if (repl) {
replLoop();
}
}
function bootstrapWorkerRuntime(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) });
eventTarget.setEventTargetData(globalThis);
const { unstableFlag, pid, noColor, args } = runtimeStart(
internalName ?? name,
);
registerErrors();
const finalDenoNs = {
core,
internal: internalSymbol,
[internalSymbol]: internalObject,
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);