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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
commit26105034da4fcce7ac883c899d781f016559310d (patch)
treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/core-js/modules/_task.js
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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Diffstat (limited to 'node_modules/core-js/modules/_task.js')
-rw-r--r--node_modules/core-js/modules/_task.js84
1 files changed, 84 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/_task.js b/node_modules/core-js/modules/_task.js
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+++ b/node_modules/core-js/modules/_task.js
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+var ctx = require('./_ctx');
+var invoke = require('./_invoke');
+var html = require('./_html');
+var cel = require('./_dom-create');
+var global = require('./_global');
+var process = global.process;
+var setTask = global.setImmediate;
+var clearTask = global.clearImmediate;
+var MessageChannel = global.MessageChannel;
+var Dispatch = global.Dispatch;
+var counter = 0;
+var queue = {};
+var ONREADYSTATECHANGE = 'onreadystatechange';
+var defer, channel, port;
+var run = function () {
+ var id = +this;
+ // eslint-disable-next-line no-prototype-builtins
+ if (queue.hasOwnProperty(id)) {
+ var fn = queue[id];
+ delete queue[id];
+ fn();
+ }
+};
+var listener = function (event) {
+ run.call(event.data);
+};
+// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
+if (!setTask || !clearTask) {
+ setTask = function setImmediate(fn) {
+ var args = [];
+ var i = 1;
+ while (arguments.length > i) args.push(arguments[i++]);
+ queue[++counter] = function () {
+ // eslint-disable-next-line no-new-func
+ invoke(typeof fn == 'function' ? fn : Function(fn), args);
+ };
+ defer(counter);
+ return counter;
+ };
+ clearTask = function clearImmediate(id) {
+ delete queue[id];
+ };
+ // Node.js 0.8-
+ if (require('./_cof')(process) == 'process') {
+ defer = function (id) {
+ process.nextTick(ctx(run, id, 1));
+ };
+ // Sphere (JS game engine) Dispatch API
+ } else if (Dispatch && Dispatch.now) {
+ defer = function (id) {
+ Dispatch.now(ctx(run, id, 1));
+ };
+ // Browsers with MessageChannel, includes WebWorkers
+ } else if (MessageChannel) {
+ channel = new MessageChannel();
+ port = channel.port2;
+ channel.port1.onmessage = listener;
+ defer = ctx(port.postMessage, port, 1);
+ // Browsers with postMessage, skip WebWorkers
+ // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
+ } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
+ defer = function (id) {
+ global.postMessage(id + '', '*');
+ };
+ global.addEventListener('message', listener, false);
+ // IE8-
+ } else if (ONREADYSTATECHANGE in cel('script')) {
+ defer = function (id) {
+ html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
+ html.removeChild(this);
+ run.call(id);
+ };
+ };
+ // Rest old browsers
+ } else {
+ defer = function (id) {
+ setTimeout(ctx(run, id, 1), 0);
+ };
+ }
+}
+module.exports = {
+ set: setTask,
+ clear: clearTask
+};