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shorten some lines in events.js

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This commit is contained in:
Ryan Dahl 2010-09-15 15:47:28 -07:00
parent ae8f8e7258
commit 6bdc42cee7
1 changed files with 9 additions and 9 deletions
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18
lib/events.js
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@ -1,8 +1,8 @@
exports.EventEmitter = process.EventEmitter; var EventEmitter = exports.EventEmitter = process.EventEmitter;
var isArray = Array.isArray; var isArray = Array.isArray;
process.EventEmitter.prototype.emit = function (type) { EventEmitter.prototype.emit = function (type) {
// If there is no 'error' event listener then throw. // If there is no 'error' event listener then throw.
if (type === 'error') { if (type === 'error') {
if (!this._events || !this._events.error || if (!this._events || !this._events.error ||
@ -49,9 +49,9 @@ process.EventEmitter.prototype.emit = function (type) {
} }
}; };
// process.EventEmitter is defined in src/node_events.cc // EventEmitter is defined in src/node_events.cc
// process.EventEmitter.prototype.emit() is also defined there. // EventEmitter.prototype.emit() is also defined there.
process.EventEmitter.prototype.addListener = function (type, listener) { EventEmitter.prototype.addListener = function (type, listener) {
if ('function' !== typeof listener) { if ('function' !== typeof listener) {
throw new Error('addListener only takes instances of Function'); throw new Error('addListener only takes instances of Function');
} }
@ -76,9 +76,9 @@ process.EventEmitter.prototype.addListener = function (type, listener) {
return this; return this;
}; };
process.EventEmitter.prototype.on = process.EventEmitter.prototype.addListener; EventEmitter.prototype.on = EventEmitter.prototype.addListener;
process.EventEmitter.prototype.removeListener = function (type, listener) { EventEmitter.prototype.removeListener = function (type, listener) {
if ('function' !== typeof listener) { if ('function' !== typeof listener) {
throw new Error('removeListener only takes instances of Function'); throw new Error('removeListener only takes instances of Function');
} }
@ -101,13 +101,13 @@ process.EventEmitter.prototype.removeListener = function (type, listener) {
return this; return this;
}; };
process.EventEmitter.prototype.removeAllListeners = function (type) { EventEmitter.prototype.removeAllListeners = function (type) {
// does not use listeners(), so no side effect of creating _events[type] // does not use listeners(), so no side effect of creating _events[type]
if (type && this._events && this._events[type]) this._events[type] = null; if (type && this._events && this._events[type]) this._events[type] = null;
return this; return this;
}; };
process.EventEmitter.prototype.listeners = function (type) { EventEmitter.prototype.listeners = function (type) {
if (!this._events) this._events = {}; if (!this._events) this._events = {};
if (!this._events[type]) this._events[type] = []; if (!this._events[type]) this._events[type] = [];
if (!isArray(this._events[type])) { if (!isArray(this._events[type])) {