mirror of
https://github.com/gradle/gradle-build-action.git
synced 2024-12-27 18:26:18 +08:00
187 lines
6.3 KiB
JavaScript
187 lines
6.3 KiB
JavaScript
|
(function (global, undefined) {
|
|||
|
"use strict";
|
|||
|
|
|||
|
if (global.setImmediate) {
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
var nextHandle = 1; // Spec says greater than zero
|
|||
|
var tasksByHandle = {};
|
|||
|
var currentlyRunningATask = false;
|
|||
|
var doc = global.document;
|
|||
|
var registerImmediate;
|
|||
|
|
|||
|
function setImmediate(callback) {
|
|||
|
// Callback can either be a function or a string
|
|||
|
if (typeof callback !== "function") {
|
|||
|
callback = new Function("" + callback);
|
|||
|
}
|
|||
|
// Copy function arguments
|
|||
|
var args = new Array(arguments.length - 1);
|
|||
|
for (var i = 0; i < args.length; i++) {
|
|||
|
args[i] = arguments[i + 1];
|
|||
|
}
|
|||
|
// Store and register the task
|
|||
|
var task = { callback: callback, args: args };
|
|||
|
tasksByHandle[nextHandle] = task;
|
|||
|
registerImmediate(nextHandle);
|
|||
|
return nextHandle++;
|
|||
|
}
|
|||
|
|
|||
|
function clearImmediate(handle) {
|
|||
|
delete tasksByHandle[handle];
|
|||
|
}
|
|||
|
|
|||
|
function run(task) {
|
|||
|
var callback = task.callback;
|
|||
|
var args = task.args;
|
|||
|
switch (args.length) {
|
|||
|
case 0:
|
|||
|
callback();
|
|||
|
break;
|
|||
|
case 1:
|
|||
|
callback(args[0]);
|
|||
|
break;
|
|||
|
case 2:
|
|||
|
callback(args[0], args[1]);
|
|||
|
break;
|
|||
|
case 3:
|
|||
|
callback(args[0], args[1], args[2]);
|
|||
|
break;
|
|||
|
default:
|
|||
|
callback.apply(undefined, args);
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
function runIfPresent(handle) {
|
|||
|
// From the spec: "Wait until any invocations of this algorithm started before this one have completed."
|
|||
|
// So if we're currently running a task, we'll need to delay this invocation.
|
|||
|
if (currentlyRunningATask) {
|
|||
|
// Delay by doing a setTimeout. setImmediate was tried instead, but in Firefox 7 it generated a
|
|||
|
// "too much recursion" error.
|
|||
|
setTimeout(runIfPresent, 0, handle);
|
|||
|
} else {
|
|||
|
var task = tasksByHandle[handle];
|
|||
|
if (task) {
|
|||
|
currentlyRunningATask = true;
|
|||
|
try {
|
|||
|
run(task);
|
|||
|
} finally {
|
|||
|
clearImmediate(handle);
|
|||
|
currentlyRunningATask = false;
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
function installNextTickImplementation() {
|
|||
|
registerImmediate = function(handle) {
|
|||
|
process.nextTick(function () { runIfPresent(handle); });
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
function canUsePostMessage() {
|
|||
|
// The test against `importScripts` prevents this implementation from being installed inside a web worker,
|
|||
|
// where `global.postMessage` means something completely different and can't be used for this purpose.
|
|||
|
if (global.postMessage && !global.importScripts) {
|
|||
|
var postMessageIsAsynchronous = true;
|
|||
|
var oldOnMessage = global.onmessage;
|
|||
|
global.onmessage = function() {
|
|||
|
postMessageIsAsynchronous = false;
|
|||
|
};
|
|||
|
global.postMessage("", "*");
|
|||
|
global.onmessage = oldOnMessage;
|
|||
|
return postMessageIsAsynchronous;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
function installPostMessageImplementation() {
|
|||
|
// Installs an event handler on `global` for the `message` event: see
|
|||
|
// * https://developer.mozilla.org/en/DOM/window.postMessage
|
|||
|
// * http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#crossDocumentMessages
|
|||
|
|
|||
|
var messagePrefix = "setImmediate$" + Math.random() + "$";
|
|||
|
var onGlobalMessage = function(event) {
|
|||
|
if (event.source === global &&
|
|||
|
typeof event.data === "string" &&
|
|||
|
event.data.indexOf(messagePrefix) === 0) {
|
|||
|
runIfPresent(+event.data.slice(messagePrefix.length));
|
|||
|
}
|
|||
|
};
|
|||
|
|
|||
|
if (global.addEventListener) {
|
|||
|
global.addEventListener("message", onGlobalMessage, false);
|
|||
|
} else {
|
|||
|
global.attachEvent("onmessage", onGlobalMessage);
|
|||
|
}
|
|||
|
|
|||
|
registerImmediate = function(handle) {
|
|||
|
global.postMessage(messagePrefix + handle, "*");
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
function installMessageChannelImplementation() {
|
|||
|
var channel = new MessageChannel();
|
|||
|
channel.port1.onmessage = function(event) {
|
|||
|
var handle = event.data;
|
|||
|
runIfPresent(handle);
|
|||
|
};
|
|||
|
|
|||
|
registerImmediate = function(handle) {
|
|||
|
channel.port2.postMessage(handle);
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
function installReadyStateChangeImplementation() {
|
|||
|
var html = doc.documentElement;
|
|||
|
registerImmediate = function(handle) {
|
|||
|
// Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
|
|||
|
// into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
|
|||
|
var script = doc.createElement("script");
|
|||
|
script.onreadystatechange = function () {
|
|||
|
runIfPresent(handle);
|
|||
|
script.onreadystatechange = null;
|
|||
|
html.removeChild(script);
|
|||
|
script = null;
|
|||
|
};
|
|||
|
html.appendChild(script);
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
function installSetTimeoutImplementation() {
|
|||
|
registerImmediate = function(handle) {
|
|||
|
setTimeout(runIfPresent, 0, handle);
|
|||
|
};
|
|||
|
}
|
|||
|
|
|||
|
// If supported, we should attach to the prototype of global, since that is where setTimeout et al. live.
|
|||
|
var attachTo = Object.getPrototypeOf && Object.getPrototypeOf(global);
|
|||
|
attachTo = attachTo && attachTo.setTimeout ? attachTo : global;
|
|||
|
|
|||
|
// Don't get fooled by e.g. browserify environments.
|
|||
|
if ({}.toString.call(global.process) === "[object process]") {
|
|||
|
// For Node.js before 0.9
|
|||
|
installNextTickImplementation();
|
|||
|
|
|||
|
} else if (canUsePostMessage()) {
|
|||
|
// For non-IE10 modern browsers
|
|||
|
installPostMessageImplementation();
|
|||
|
|
|||
|
} else if (global.MessageChannel) {
|
|||
|
// For web workers, where supported
|
|||
|
installMessageChannelImplementation();
|
|||
|
|
|||
|
} else if (doc && "onreadystatechange" in doc.createElement("script")) {
|
|||
|
// For IE 6–8
|
|||
|
installReadyStateChangeImplementation();
|
|||
|
|
|||
|
} else {
|
|||
|
// For older browsers
|
|||
|
installSetTimeoutImplementation();
|
|||
|
}
|
|||
|
|
|||
|
attachTo.setImmediate = setImmediate;
|
|||
|
attachTo.clearImmediate = clearImmediate;
|
|||
|
}(typeof self === "undefined" ? typeof global === "undefined" ? this : global : self));
|