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jiapengyu
2026-07-27 13:37:48 +08:00
commit ecba71e2a5
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var Class = require('./Class');
var clone = require('./clone');
var each = require('./each');
var toArr = require('./toArr');
exports = Class(
{
initialize: function SingleEmitter() {
this._listeners = [];
},
addListener: function(listener) {
this._listeners.push(listener);
},
rmListener: function(listener) {
var idx = this._listeners.indexOf(listener);
if (idx > -1) {
this._listeners.splice(idx, 1);
}
},
rmAllListeners: function() {
this._listeners = [];
},
emit: function() {
var _this = this;
var args = toArr(arguments);
var listeners = clone(this._listeners);
each(
listeners,
function(listener) {
return listener.apply(_this, args);
},
this
);
}
},
{
mixin: function(obj) {
each(
['addListener', 'rmListener', 'emit', 'rmAllListeners'],
function(val) {
obj[val] = exports.prototype[val];
}
);
obj._listeners = obj._listeners || [];
}
}
);
module.exports = exports;