fix: 微信登录补充保存username和role

node_modules/licia/SingleEmitter.js

@@ -0,0 +1,48 @@
+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;