fix: 微信登录补充保存username和role

node_modules/licia/waterfall.js

@@ -0,0 +1,27 @@
+var noop = require('./noop');
+var nextTick = require('./nextTick');
+var restArgs = require('./restArgs');
+exports = function(tasks, cb) {
+    cb = cb || noop;
+    var current = 0;
+    var taskCb = restArgs(function(err, args) {
+        if (++current >= tasks.length || err) {
+            args.unshift(err);
+            nextTick(function() {
+                cb.apply(null, args);
+            });
+        } else {
+            args.push(taskCb);
+            tasks[current].apply(null, args);
+        }
+    });
+    if (tasks.length) {
+        tasks[0](taskCb);
+    } else {
+        nextTick(function() {
+            cb();
+        });
+    }
+};
+
+module.exports = exports;