aaac7fed
 liuqimichale
add
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'use strict';
var ensureError = require('es5-ext/error/valid-error')
, ensureObject = require('es5-ext/object/valid-object')
, hasOwnProperty = Object.prototype.hasOwnProperty;
module.exports = function (err) {
(ensureObject(this) && ensureError(err));
if (!hasOwnProperty.call(ensureObject(this), '__ee__')) throw err;
if (!this.__ee__.error) throw err;
this.emit('error', err);
};
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