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hint.js
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hint.js
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(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/*
* Batarang instrumentation
*
* This gets loaded into the context of the app you are inspecting
*/
require('./loader.js');
require('angular-hint');
angular.hint.onAny(function (data, severity) {
window.postMessage({
__fromBatarang: true,
module: this.event.split(':')[0],
event: this.event,
data: data,
severity: severity
}, '*');
});
},{"./loader.js":2,"angular-hint":3}],2:[function(require,module,exports){
/**
* @license AngularJS v1.3.0-build.3042+sha.76e57a7
* (c) 2010-2014 Google, Inc. http://angularjs.org
* License: MIT
*/
(function() {'use strict';
/**
* @description
*
* This object provides a utility for producing rich Error messages within
* Angular. It can be called as follows:
*
* var exampleMinErr = minErr('example');
* throw exampleMinErr('one', 'This {0} is {1}', foo, bar);
*
* The above creates an instance of minErr in the example namespace. The
* resulting error will have a namespaced error code of example.one. The
* resulting error will replace {0} with the value of foo, and {1} with the
* value of bar. The object is not restricted in the number of arguments it can
* take.
*
* If fewer arguments are specified than necessary for interpolation, the extra
* interpolation markers will be preserved in the final string.
*
* Since data will be parsed statically during a build step, some restrictions
* are applied with respect to how minErr instances are created and called.
* Instances should have names of the form namespaceMinErr for a minErr created
* using minErr('namespace') . Error codes, namespaces and template strings
* should all be static strings, not variables or general expressions.
*
* @param {string} module The namespace to use for the new minErr instance.
* @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance
*/
function minErr(module) {
return function () {
var code = arguments[0],
prefix = '[' + (module ? module + ':' : '') + code + '] ',
template = arguments[1],
templateArgs = arguments,
stringify = function (obj) {
if (typeof obj === 'function') {
return obj.toString().replace(/ \{[\s\S]*$/, '');
} else if (typeof obj === 'undefined') {
return 'undefined';
} else if (typeof obj !== 'string') {
return JSON.stringify(obj);
}
return obj;
},
message, i;
message = prefix + template.replace(/\{\d+\}/g, function (match) {
var index = +match.slice(1, -1), arg;
if (index + 2 < templateArgs.length) {
arg = templateArgs[index + 2];
if (typeof arg === 'function') {
return arg.toString().replace(/ ?\{[\s\S]*$/, '');
} else if (typeof arg === 'undefined') {
return 'undefined';
} else if (typeof arg !== 'string') {
return toJson(arg);
}
return arg;
}
return match;
});
message = message + '\nhttp://errors.angularjs.org/1.3.0-build.3042+sha.76e57a7/' +
(module ? module + '/' : '') + code;
for (i = 2; i < arguments.length; i++) {
message = message + (i == 2 ? '?' : '&') + 'p' + (i-2) + '=' +
encodeURIComponent(stringify(arguments[i]));
}
return new Error(message);
};
}
/**
* @ngdoc type
* @name angular.Module
* @module ng
* @description
*
* Interface for configuring angular {@link angular.module modules}.
*/
function setupModuleLoader(window) {
var $injectorMinErr = minErr('$injector');
var ngMinErr = minErr('ng');
function ensure(obj, name, factory) {
return obj[name] || (obj[name] = factory());
}
var angular = ensure(window, 'angular', Object);
// We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap
angular.$$minErr = angular.$$minErr || minErr;
return ensure(angular, 'module', function() {
/** @type {Object.<string, angular.Module>} */
var modules = {};
/**
* @ngdoc function
* @name angular.module
* @module ng
* @description
*
* The `angular.module` is a global place for creating, registering and retrieving Angular
* modules.
* All modules (angular core or 3rd party) that should be available to an application must be
* registered using this mechanism.
*
* When passed two or more arguments, a new module is created. If passed only one argument, an
* existing module (the name passed as the first argument to `module`) is retrieved.
*
*
* # Module
*
* A module is a collection of services, directives, controllers, filters, and configuration information.
* `angular.module` is used to configure the {@link auto.$injector $injector}.
*
* ```js
* // Create a new module
* var myModule = angular.module('myModule', []);
*
* // register a new service
* myModule.value('appName', 'MyCoolApp');
*
* // configure existing services inside initialization blocks.
* myModule.config(['$locationProvider', function($locationProvider) {
* // Configure existing providers
* $locationProvider.hashPrefix('!');
* }]);
* ```
*
* Then you can create an injector and load your modules like this:
*
* ```js
* var injector = angular.injector(['ng', 'myModule'])
* ```
*
* However it's more likely that you'll just use
* {@link ng.directive:ngApp ngApp} or
* {@link angular.bootstrap} to simplify this process for you.
*
* @param {!string} name The name of the module to create or retrieve.
* @param {!Array.<string>=} requires If specified then new module is being created. If
* unspecified then the module is being retrieved for further configuration.
* @param {Function=} configFn Optional configuration function for the module. Same as
* {@link angular.Module#config Module#config()}.
* @returns {module} new module with the {@link angular.Module} api.
*/
return function module(name, requires, configFn) {
var assertNotHasOwnProperty = function(name, context) {
if (name === 'hasOwnProperty') {
throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);
}
};
assertNotHasOwnProperty(name, 'module');
if (requires && modules.hasOwnProperty(name)) {
modules[name] = null;
}
return ensure(modules, name, function() {
if (!requires) {
throw $injectorMinErr('nomod', "Module '{0}' is not available! You either misspelled " +
"the module name or forgot to load it. If registering a module ensure that you " +
"specify the dependencies as the second argument.", name);
}
/** @type {!Array.<Array.<*>>} */
var invokeQueue = [];
/** @type {!Array.<Function>} */
var configBlocks = [];
/** @type {!Array.<Function>} */
var runBlocks = [];
var config = invokeLater('$injector', 'invoke', 'push', configBlocks);
/** @type {angular.Module} */
var moduleInstance = {
// Private state
_configBlocks: [],
_runBlocks: runBlocks,
/**
* @ngdoc property
* @name angular.Module#requires
* @module ng
* @returns {Array.<string>} List of module names which must be loaded before this module.
* @description
* Holds the list of modules which the injector will load before the current module is
* loaded.
*/
requires: requires,
/**
* @ngdoc property
* @name angular.Module#name
* @module ng
* @returns {string} Name of the module.
* @description
*/
name: name,
/**
* @ngdoc method
* @name angular.Module#provider
* @module ng
* @param {string} name service name
* @param {Function} providerType Construction function for creating new instance of the
* service.
* @description
* See {@link auto.$provide#provider $provide.provider()}.
*/
provider: invokeLater('$provide', 'provider'),
/**
* @ngdoc method
* @name angular.Module#factory
* @module ng
* @param {string} name service name
* @param {Function} providerFunction Function for creating new instance of the service.
* @description
* See {@link auto.$provide#factory $provide.factory()}.
*/
factory: invokeLater('$provide', 'factory'),
/**
* @ngdoc method
* @name angular.Module#service
* @module ng
* @param {string} name service name
* @param {Function} constructor A constructor function that will be instantiated.
* @description
* See {@link auto.$provide#service $provide.service()}.
*/
service: invokeLater('$provide', 'service'),
/**
* @ngdoc method
* @name angular.Module#value
* @module ng
* @param {string} name service name
* @param {*} object Service instance object.
* @description
* See {@link auto.$provide#value $provide.value()}.
*/
value: invokeLater('$provide', 'value'),
/**
* @ngdoc method
* @name angular.Module#constant
* @module ng
* @param {string} name constant name
* @param {*} object Constant value.
* @description
* Because the constant are fixed, they get applied before other provide methods.
* See {@link auto.$provide#constant $provide.constant()}.
*/
constant: invokeLater('$provide', 'constant', 'unshift'),
/**
* @ngdoc method
* @name angular.Module#animation
* @module ng
* @param {string} name animation name
* @param {Function} animationFactory Factory function for creating new instance of an
* animation.
* @description
*
* **NOTE**: animations take effect only if the **ngAnimate** module is loaded.
*
*
* Defines an animation hook that can be later used with
* {@link ngAnimate.$animate $animate} service and directives that use this service.
*
* ```js
* module.animation('.animation-name', function($inject1, $inject2) {
* return {
* eventName : function(element, done) {
* //code to run the animation
* //once complete, then run done()
* return function cancellationFunction(element) {
* //code to cancel the animation
* }
* }
* }
* })
* ```
*
* See {@link ngAnimate.$animateProvider#register $animateProvider.register()} and
* {@link ngAnimate ngAnimate module} for more information.
*/
animation: invokeLater('$animateProvider', 'register'),
/**
* @ngdoc method
* @name angular.Module#filter
* @module ng
* @param {string} name Filter name.
* @param {Function} filterFactory Factory function for creating new instance of filter.
* @description
* See {@link ng.$filterProvider#register $filterProvider.register()}.
*/
filter: invokeLater('$filterProvider', 'register'),
/**
* @ngdoc method
* @name angular.Module#controller
* @module ng
* @param {string|Object} name Controller name, or an object map of controllers where the
* keys are the names and the values are the constructors.
* @param {Function} constructor Controller constructor function.
* @description
* See {@link ng.$controllerProvider#register $controllerProvider.register()}.
*/
controller: invokeLater('$controllerProvider', 'register'),
/**
* @ngdoc method
* @name angular.Module#directive
* @module ng
* @param {string|Object} name Directive name, or an object map of directives where the
* keys are the names and the values are the factories.
* @param {Function} directiveFactory Factory function for creating new instance of
* directives.
* @description
* See {@link ng.$compileProvider#directive $compileProvider.directive()}.
*/
directive: invokeLater('$compileProvider', 'directive'),
/**
* @ngdoc method
* @name angular.Module#config
* @module ng
* @param {Function} configFn Execute this function on module load. Useful for service
* configuration.
* @description
* Use this method to register work which needs to be performed on module loading.
* For more about how to configure services, see
* {@link providers#providers_provider-recipe Provider Recipe}.
*/
config: config,
/**
* @ngdoc method
* @name angular.Module#run
* @module ng
* @param {Function} initializationFn Execute this function after injector creation.
* Useful for application initialization.
* @description
* Use this method to register work which should be performed when the injector is done
* loading all modules.
*/
run: function(block) {
runBlocks.push(block);
return this;
}
};
/**
* ANGULAR HINT ALTERATION
* To make this loader compatible with apps that are running
* both Angular 1.2 and 1.3, the loader must handle 1.3 applications
* that expect to initialize their config blocks after all providers
* are registered. Hence, the configBlocks are added to the end
* of the exisiting invokeQueue.
*/
Object.defineProperty(moduleInstance, '_invokeQueue', {
get: function() {
return invokeQueue.concat(configBlocks);
}
});
if (configFn) {
config(configFn);
}
return moduleInstance;
/**
* @param {string} provider
* @param {string} method
* @param {String=} insertMethod
* @returns {angular.Module}
*/
function invokeLater(provider, method, insertMethod, queue) {
if (!queue) queue = invokeQueue;
return function() {
queue[insertMethod || 'push']([provider, method, arguments]);
return moduleInstance;
};
}
});
};
});
}
setupModuleLoader(window);
})(window);
/**
* Closure compiler type information
*
* @typedef { {
* requires: !Array.<string>,
* invokeQueue: !Array.<Array.<*>>,
*
* service: function(string, Function):angular.Module,
* factory: function(string, Function):angular.Module,
* value: function(string, *):angular.Module,
*
* filter: function(string, Function):angular.Module,
*
* init: function(Function):angular.Module
* } }
*/
angular.Module;
},{}],3:[function(require,module,exports){
'use strict';
// Create pipe for all hint messages from different modules
require('./src/modules/hintEmitter');
// Load angular hint modules
require('./src/modules/controllers');
// require('./src/modules/directives');
// require('./src/modules/dom');
require('./src/modules/events');
// require('./src/modules/interpolation');
require('./src/modules/modules');
require('./src/modules/scopes');
// List of all possible modules
// The default ng-hint behavior loads all modules
var AVAILABLE_MODULES = [
'ngHintControllers',
// 'ngHintDirectives',
// 'ngHintDom',
'ngHintEvents',
// 'ngHintInterpolation',
'ngHintModules',
'ngHintScopes'
];
var SEVERITY_WARNING = 2;
// Determine whether this run is by protractor.
// If protractor is running, the bootstrap will already be deferred.
// In this case `resumeBootstrap` should be patched to load the hint modules.
if (window.name === 'NG_DEFER_BOOTSTRAP!') {
var originalResumeBootstrap;
Object.defineProperty(angular, 'resumeBootstrap', {
get: function() {
return function(modules) {
return originalResumeBootstrap.call(angular, modules.concat(loadModules()));
};
},
set: function(resumeBootstrap) {
originalResumeBootstrap = resumeBootstrap;
}
});
}
//If this is not a test, defer bootstrapping
else {
window.name = 'NG_DEFER_BOOTSTRAP!';
// determine which modules to load and resume bootstrap
document.addEventListener('DOMContentLoaded', maybeBootstrap);
}
function maybeBootstrap() {
// we don't know if angular is loaded
if (!angular.resumeBootstrap) {
return setTimeout(maybeBootstrap, 1);
}
var modules = loadModules();
angular.resumeBootstrap(modules);
}
function loadModules() {
var modules = [], elt;
if (angular.version.minor < 2) {
return modules;
}
if ((elt = document.querySelector('[ng-hint-include]'))) {
modules = hintModulesFromElement(elt);
} else if (elt = document.querySelector('[ng-hint-exclude]')) {
modules = excludeModules(hintModulesFromElement(elt));
} else if (document.querySelector('[ng-hint]')) {
modules = AVAILABLE_MODULES;
} else {
angular.hint.emit('general:noinclude', 'ngHint is included on the page, but is not active because ' +
'there is no `ng-hint` attribute present', SEVERITY_WARNING);
}
return modules;
}
function excludeModules(modulesToExclude) {
return AVAILABLE_MODULES.filter(function(module) {
return modulesToExclude.indexOf(module) === -1;
});
}
function hintModulesFromElement (elt) {
var selectedModules = (elt.attributes['ng-hint-include'] ||
elt.attributes['ng-hint-exclude']).value.split(' ');
return selectedModules.map(hintModuleName).filter(function (name) {
return (AVAILABLE_MODULES.indexOf(name) > -1) ||
angular.hint.emit('general:404module', 'Module ' + name + ' could not be found', SEVERITY_WARNING);
});
}
function hintModuleName(name) {
return 'ngHint' + title(name);
}
function title(str) {
return str[0].toUpperCase() + str.substr(1);
}
var LEVELS = [
'error',
'warning',
'suggestion'
];
},{"./src/modules/controllers":25,"./src/modules/events":26,"./src/modules/hintEmitter":27,"./src/modules/modules":28,"./src/modules/scopes":29}],4:[function(require,module,exports){
module.exports = function debounceOn (fn, timeout, hash) {
var timeouts = {};
timeout = typeof timeout === 'number' ? timeout : (hash = timeout, 100);
hash = typeof hash === 'function' ? hash : defaultHash;
return function () {
var key = hash.apply(null, arguments);
var args = arguments;
if (typeof timeouts[key] === 'undefined') {
timeouts[key] = setTimeout(function () {
delete timeouts[key];
fn.apply(null, args);
}, timeout);
}
return function cancel () {
if (timeouts[key]) {
clearTimeout(timeouts[key]);
delete timeouts[key];
return true;
}
return false;
};
};
};
function defaultHash () {
return Array.prototype.join.call(arguments, '::');
}
},{}],5:[function(require,module,exports){
/*!
* EventEmitter2
* https://github.com/hij1nx/EventEmitter2
*
* Copyright (c) 2013 hij1nx
* Licensed under the MIT license.
*/
;!function(undefined) {
var isArray = Array.isArray ? Array.isArray : function _isArray(obj) {
return Object.prototype.toString.call(obj) === "[object Array]";
};
var defaultMaxListeners = 10;
function init() {
this._events = {};
if (this._conf) {
configure.call(this, this._conf);
}
}
function configure(conf) {
if (conf) {
this._conf = conf;
conf.delimiter && (this.delimiter = conf.delimiter);
conf.maxListeners && (this._events.maxListeners = conf.maxListeners);
conf.wildcard && (this.wildcard = conf.wildcard);
conf.newListener && (this.newListener = conf.newListener);
if (this.wildcard) {
this.listenerTree = {};
}
}
}
function EventEmitter(conf) {
this._events = {};
this.newListener = false;
configure.call(this, conf);
}
//
// Attention, function return type now is array, always !
// It has zero elements if no any matches found and one or more
// elements (leafs) if there are matches
//
function searchListenerTree(handlers, type, tree, i) {
if (!tree) {
return [];
}
var listeners=[], leaf, len, branch, xTree, xxTree, isolatedBranch, endReached,
typeLength = type.length, currentType = type[i], nextType = type[i+1];
if (i === typeLength && tree._listeners) {
//
// If at the end of the event(s) list and the tree has listeners
// invoke those listeners.
//
if (typeof tree._listeners === 'function') {
handlers && handlers.push(tree._listeners);
return [tree];
} else {
for (leaf = 0, len = tree._listeners.length; leaf < len; leaf++) {
handlers && handlers.push(tree._listeners[leaf]);
}
return [tree];
}
}
if ((currentType === '*' || currentType === '**') || tree[currentType]) {
//
// If the event emitted is '*' at this part
// or there is a concrete match at this patch
//
if (currentType === '*') {
for (branch in tree) {
if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+1));
}
}
return listeners;
} else if(currentType === '**') {
endReached = (i+1 === typeLength || (i+2 === typeLength && nextType === '*'));
if(endReached && tree._listeners) {
// The next element has a _listeners, add it to the handlers.
listeners = listeners.concat(searchListenerTree(handlers, type, tree, typeLength));
}
for (branch in tree) {
if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
if(branch === '*' || branch === '**') {
if(tree[branch]._listeners && !endReached) {
listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], typeLength));
}
listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
} else if(branch === nextType) {
listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+2));
} else {
// No match on this one, shift into the tree but not in the type array.
listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
}
}
}
return listeners;
}
listeners = listeners.concat(searchListenerTree(handlers, type, tree[currentType], i+1));
}
xTree = tree['*'];
if (xTree) {
//
// If the listener tree will allow any match for this part,
// then recursively explore all branches of the tree
//
searchListenerTree(handlers, type, xTree, i+1);
}
xxTree = tree['**'];
if(xxTree) {
if(i < typeLength) {
if(xxTree._listeners) {
// If we have a listener on a '**', it will catch all, so add its handler.
searchListenerTree(handlers, type, xxTree, typeLength);
}
// Build arrays of matching next branches and others.
for(branch in xxTree) {
if(branch !== '_listeners' && xxTree.hasOwnProperty(branch)) {
if(branch === nextType) {
// We know the next element will match, so jump twice.
searchListenerTree(handlers, type, xxTree[branch], i+2);
} else if(branch === currentType) {
// Current node matches, move into the tree.
searchListenerTree(handlers, type, xxTree[branch], i+1);
} else {
isolatedBranch = {};
isolatedBranch[branch] = xxTree[branch];
searchListenerTree(handlers, type, { '**': isolatedBranch }, i+1);
}
}
}
} else if(xxTree._listeners) {
// We have reached the end and still on a '**'
searchListenerTree(handlers, type, xxTree, typeLength);
} else if(xxTree['*'] && xxTree['*']._listeners) {
searchListenerTree(handlers, type, xxTree['*'], typeLength);
}
}
return listeners;
}
function growListenerTree(type, listener) {
type = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
//
// Looks for two consecutive '**', if so, don't add the event at all.
//
for(var i = 0, len = type.length; i+1 < len; i++) {
if(type[i] === '**' && type[i+1] === '**') {
return;
}
}
var tree = this.listenerTree;
var name = type.shift();
while (name) {
if (!tree[name]) {
tree[name] = {};
}
tree = tree[name];
if (type.length === 0) {
if (!tree._listeners) {
tree._listeners = listener;
}
else if(typeof tree._listeners === 'function') {
tree._listeners = [tree._listeners, listener];
}
else if (isArray(tree._listeners)) {
tree._listeners.push(listener);
if (!tree._listeners.warned) {
var m = defaultMaxListeners;
if (typeof this._events.maxListeners !== 'undefined') {
m = this._events.maxListeners;
}
if (m > 0 && tree._listeners.length > m) {
tree._listeners.warned = true;
console.error('(node) warning: possible EventEmitter memory ' +
'leak detected. %d listeners added. ' +
'Use emitter.setMaxListeners() to increase limit.',
tree._listeners.length);
console.trace();
}
}
}
return true;
}
name = type.shift();
}
return true;
}
// By default EventEmitters will print a warning if more than
// 10 listeners are added to it. This is a useful default which
// helps finding memory leaks.
//
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.delimiter = '.';
EventEmitter.prototype.setMaxListeners = function(n) {
this._events || init.call(this);
this._events.maxListeners = n;
if (!this._conf) this._conf = {};
this._conf.maxListeners = n;
};
EventEmitter.prototype.event = '';
EventEmitter.prototype.once = function(event, fn) {
this.many(event, 1, fn);
return this;
};
EventEmitter.prototype.many = function(event, ttl, fn) {
var self = this;
if (typeof fn !== 'function') {
throw new Error('many only accepts instances of Function');
}
function listener() {
if (--ttl === 0) {
self.off(event, listener);
}
fn.apply(this, arguments);
}
listener._origin = fn;
this.on(event, listener);
return self;
};
EventEmitter.prototype.emit = function() {
this._events || init.call(this);
var type = arguments[0];
if (type === 'newListener' && !this.newListener) {
if (!this._events.newListener) { return false; }
}
// Loop through the *_all* functions and invoke them.
if (this._all) {
var l = arguments.length;
var args = new Array(l - 1);
for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
for (i = 0, l = this._all.length; i < l; i++) {
this.event = type;
this._all[i].apply(this, args);
}
}
// If there is no 'error' event listener then throw.
if (type === 'error') {
if (!this._all &&
!this._events.error &&
!(this.wildcard && this.listenerTree.error)) {
if (arguments[1] instanceof Error) {
throw arguments[1]; // Unhandled 'error' event
} else {
throw new Error("Uncaught, unspecified 'error' event.");
}
return false;
}
}
var handler;
if(this.wildcard) {
handler = [];
var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
}
else {
handler = this._events[type];
}
if (typeof handler === 'function') {
this.event = type;
if (arguments.length === 1) {
handler.call(this);
}
else if (arguments.length > 1)
switch (arguments.length) {
case 2:
handler.call(this, arguments[1]);
break;
case 3:
handler.call(this, arguments[1], arguments[2]);
break;
// slower
default:
var l = arguments.length;
var args = new Array(l - 1);
for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
handler.apply(this, args);
}
return true;
}
else if (handler) {
var l = arguments.length;
var args = new Array(l - 1);
for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
var listeners = handler.slice();
for (var i = 0, l = listeners.length; i < l; i++) {
this.event = type;
listeners[i].apply(this, args);
}
return (listeners.length > 0) || !!this._all;
}
else {
return !!this._all;
}
};
EventEmitter.prototype.on = function(type, listener) {
if (typeof type === 'function') {
this.onAny(type);
return this;
}
if (typeof listener !== 'function') {
throw new Error('on only accepts instances of Function');
}
this._events || init.call(this);
// To avoid recursion in the case that type == "newListeners"! Before
// adding it to the listeners, first emit "newListeners".
this.emit('newListener', type, listener);
if(this.wildcard) {
growListenerTree.call(this, type, listener);
return this;
}
if (!this._events[type]) {
// Optimize the case of one listener. Don't need the extra array object.
this._events[type] = listener;
}
else if(typeof this._events[type] === 'function') {
// Adding the second element, need to change to array.
this._events[type] = [this._events[type], listener];
}
else if (isArray(this._events[type])) {
// If we've already got an array, just append.
this._events[type].push(listener);
// Check for listener leak
if (!this._events[type].warned) {
var m = defaultMaxListeners;
if (typeof this._events.maxListeners !== 'undefined') {
m = this._events.maxListeners;
}
if (m > 0 && this._events[type].length > m) {
this._events[type].warned = true;
console.error('(node) warning: possible EventEmitter memory ' +
'leak detected. %d listeners added. ' +
'Use emitter.setMaxListeners() to increase limit.',
this._events[type].length);
console.trace();
}
}
}
return this;
};