зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
2.2 KiB
JavaScript
93 строки
2.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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var EXPORTED_SYMBOLS = [
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"FatalError",
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"RemoteAgentError",
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"UnknownMethodError",
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"UnsupportedError",
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];
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const {Log} = ChromeUtils.import("chrome://remote/content/Log.jsm");
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const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
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const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyGetter(this, "log", Log.get);
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class RemoteAgentError extends Error {
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constructor(message = "", cause = undefined) {
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cause = cause || message;
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super(cause);
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this.name = this.constructor.name;
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this.message = message;
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this.cause = cause;
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this.notify();
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}
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notify() {
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Cu.reportError(this);
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log.error(formatError(this));
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}
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toString({stack = false} = {}) {
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return RemoteAgentError.format(this, {stack});
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}
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static format(e, {stack = false} = {}) {
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return formatError(e, {stack});
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}
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}
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/**
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* A fatal error that it is not possible to recover from
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* or send back to the client.
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*
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* Constructing this error will force the application to quit.
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*/
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class FatalError extends RemoteAgentError {
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constructor(...args) {
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super(...args);
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this.quit();
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}
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notify() {
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log.fatal(this.toString());
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}
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toString() {
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return formatError(this, {stack: true});
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}
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quit(mode = Ci.nsIAppStartup.eForceQuit) {
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Services.startup.quit(mode);
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}
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}
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/** When an operation is not yet implemented. */
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class UnsupportedError extends RemoteAgentError {}
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/** The requested remote method does not exist. */
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class UnknownMethodError extends RemoteAgentError {}
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function formatError(error, {stack = false} = {}) {
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const ls = [];
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ls.push(`${error.name}: ${error.message ? `${error.message}:` : ""}`);
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if (stack && error.stack) {
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const stack = error.stack.trim().split("\n");
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ls.push(stack.map(line => `\t${line}`).join("\n"));
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if (error.cause) {
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ls.push("caused by: " + formatError(error.cause, {stack}));
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}
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}
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return ls.join("\n");
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}
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