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							185 lines
						
					
					
						
							5.3 KiB
						
					
					
				
			
		
		
	
	
							185 lines
						
					
					
						
							5.3 KiB
						
					
					
				| // shim for using process in browser
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| var process = module.exports = {};
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| 
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| // cached from whatever global is present so that test runners that stub it
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| // don't break things.  But we need to wrap it in a try catch in case it is
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| // wrapped in strict mode code which doesn't define any globals.  It's inside a
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| // function because try/catches deoptimize in certain engines.
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| 
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| var cachedSetTimeout;
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| var cachedClearTimeout;
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| 
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| function defaultSetTimout() {
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|     throw new Error('setTimeout has not been defined');
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| }
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| function defaultClearTimeout () {
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|     throw new Error('clearTimeout has not been defined');
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| }
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| (function () {
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|     try {
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|         if (typeof setTimeout === 'function') {
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|             cachedSetTimeout = setTimeout;
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|         } else {
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|             cachedSetTimeout = defaultSetTimout;
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|         }
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|     } catch (e) {
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|         cachedSetTimeout = defaultSetTimout;
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|     }
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|     try {
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|         if (typeof clearTimeout === 'function') {
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|             cachedClearTimeout = clearTimeout;
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|         } else {
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|             cachedClearTimeout = defaultClearTimeout;
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|         }
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|     } catch (e) {
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|         cachedClearTimeout = defaultClearTimeout;
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|     }
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| } ())
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| function runTimeout(fun) {
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|     if (cachedSetTimeout === setTimeout) {
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|         //normal enviroments in sane situations
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|         return setTimeout(fun, 0);
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|     }
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|     // if setTimeout wasn't available but was latter defined
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|     if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
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|         cachedSetTimeout = setTimeout;
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|         return setTimeout(fun, 0);
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|     }
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|     try {
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|         // when when somebody has screwed with setTimeout but no I.E. maddness
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|         return cachedSetTimeout(fun, 0);
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|     } catch(e){
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|         try {
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|             // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
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|             return cachedSetTimeout.call(null, fun, 0);
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|         } catch(e){
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|             // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
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|             return cachedSetTimeout.call(this, fun, 0);
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|         }
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|     }
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| 
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| 
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| }
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| function runClearTimeout(marker) {
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|     if (cachedClearTimeout === clearTimeout) {
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|         //normal enviroments in sane situations
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|         return clearTimeout(marker);
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|     }
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|     // if clearTimeout wasn't available but was latter defined
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|     if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
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|         cachedClearTimeout = clearTimeout;
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|         return clearTimeout(marker);
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|     }
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|     try {
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|         // when when somebody has screwed with setTimeout but no I.E. maddness
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|         return cachedClearTimeout(marker);
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|     } catch (e){
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|         try {
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|             // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
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|             return cachedClearTimeout.call(null, marker);
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|         } catch (e){
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|             // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
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|             // Some versions of I.E. have different rules for clearTimeout vs setTimeout
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|             return cachedClearTimeout.call(this, marker);
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|         }
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|     }
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| 
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| 
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| 
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| }
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| var queue = [];
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| var draining = false;
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| var currentQueue;
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| var queueIndex = -1;
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| 
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| function cleanUpNextTick() {
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|     if (!draining || !currentQueue) {
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|         return;
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|     }
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|     draining = false;
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|     if (currentQueue.length) {
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|         queue = currentQueue.concat(queue);
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|     } else {
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|         queueIndex = -1;
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|     }
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|     if (queue.length) {
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|         drainQueue();
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|     }
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| }
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| 
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| function drainQueue() {
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|     if (draining) {
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|         return;
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|     }
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|     var timeout = runTimeout(cleanUpNextTick);
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|     draining = true;
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| 
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|     var len = queue.length;
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|     while(len) {
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|         currentQueue = queue;
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|         queue = [];
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|         while (++queueIndex < len) {
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|             if (currentQueue) {
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|                 currentQueue[queueIndex].run();
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|             }
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|         }
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|         queueIndex = -1;
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|         len = queue.length;
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|     }
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|     currentQueue = null;
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|     draining = false;
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|     runClearTimeout(timeout);
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| }
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| 
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| process.nextTick = function (fun) {
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|     var args = new Array(arguments.length - 1);
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|     if (arguments.length > 1) {
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|         for (var i = 1; i < arguments.length; i++) {
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|             args[i - 1] = arguments[i];
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|         }
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|     }
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|     queue.push(new Item(fun, args));
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|     if (queue.length === 1 && !draining) {
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|         runTimeout(drainQueue);
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|     }
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| };
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| 
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| // v8 likes predictible objects
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| function Item(fun, array) {
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|     this.fun = fun;
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|     this.array = array;
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| }
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| Item.prototype.run = function () {
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|     this.fun.apply(null, this.array);
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| };
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| process.title = 'browser';
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| process.browser = true;
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| process.env = {};
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| process.argv = [];
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| process.version = ''; // empty string to avoid regexp issues
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| process.versions = {};
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| 
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| function noop() {}
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| 
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| process.on = noop;
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| process.addListener = noop;
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| process.once = noop;
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| process.off = noop;
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| process.removeListener = noop;
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| process.removeAllListeners = noop;
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| process.emit = noop;
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| process.prependListener = noop;
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| process.prependOnceListener = noop;
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| 
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| process.listeners = function (name) { return [] }
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| 
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| process.binding = function (name) {
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|     throw new Error('process.binding is not supported');
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| };
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| 
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| process.cwd = function () { return '/' };
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| process.chdir = function (dir) {
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|     throw new Error('process.chdir is not supported');
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| };
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| process.umask = function() { return 0; };
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