зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
2.7 KiB
JavaScript
93 строки
2.7 KiB
JavaScript
/**
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* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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"use strict";
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if (!("self" in this)) {
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throw new Error("No 'self' exists on SharedWorkerGlobalScope!");
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}
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if (this !== self) {
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throw new Error("'self' not equal to global object!");
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}
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if (!(self instanceof SharedWorkerGlobalScope)) {
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throw new Error("self not a SharedWorkerGlobalScope instance!");
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}
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var propsToCheck = [
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"location",
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"navigator",
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"close",
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"importScripts",
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"setTimeout",
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"clearTimeout",
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"setInterval",
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"clearInterval",
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"dump",
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"atob",
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"btoa"
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];
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for (var index = 0; index < propsToCheck.length; index++) {
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var prop = propsToCheck[index];
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if (!(prop in self)) {
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throw new Error("SharedWorkerGlobalScope has no '" + prop + "' property!");
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}
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}
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onconnect = function(event) {
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if (!("SharedWorkerGlobalScope" in self)) {
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throw new Error("SharedWorkerGlobalScope should be visible!");
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}
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if (!(self instanceof SharedWorkerGlobalScope)) {
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throw new Error("The global should be a SharedWorkerGlobalScope!");
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}
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if (!(self instanceof WorkerGlobalScope)) {
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throw new Error("The global should be a WorkerGlobalScope!");
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}
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if ("DedicatedWorkerGlobalScope" in self) {
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throw new Error("DedicatedWorkerGlobalScope should not be visible!");
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}
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if (!(event instanceof MessageEvent)) {
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throw new Error("'connect' event is not a MessageEvent!");
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}
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if (!("ports" in event)) {
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throw new Error("'connect' event doesn't have a 'ports' property!");
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}
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if (event.ports.length != 1) {
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throw new Error("'connect' event has a 'ports' property with length '" +
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event.ports.length + "'!");
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}
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if (!event.ports[0]) {
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throw new Error("'connect' event has a null 'ports[0]' property!");
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}
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if (!(event.ports[0] instanceof MessagePort)) {
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throw new Error("'connect' event has a 'ports[0]' property that isn't a " +
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"MessagePort!");
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}
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if (!(event.ports[0] == event.source)) {
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throw new Error("'connect' event source property is incorrect!");
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}
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if (event.data) {
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throw new Error("'connect' event has data: " + event.data);
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}
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// Statement after return should trigger a warning, but NOT fire error events
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// at us.
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(function() { return; 1; });
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event.ports[0].onmessage = function(msg) {
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if (!(msg instanceof MessageEvent)) {
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throw new Error("'message' event is not a MessageEvent!");
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}
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if (!("ports" in msg)) {
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throw new Error("'message' event doesn't have a 'ports' property!");
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}
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if (msg.ports === null) {
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throw new Error("'message' event has a null 'ports' property!");
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}
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msg.target.postMessage(msg.data);
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throw new Error(msg.data);
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};
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};
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