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js_sdk/hhyang-uni-simple-router/vueRouter/proxy/proxy.js

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+import { beforeEnterHooks } from '../concat';
+import { vuelifeHooks } from '../base';
+import MyArray from '../extends/myArray';
+
+/**
+ * 通过 Object.defineProperty 代理一个对象主要是拦截beforeEnter 生命钩子
+ * @param {Router} Router  路由实例对象
+ * @param {Object} BeProxy 需要代理的路由表
+ */
+export const proxyBeforeEnter = function (Router, BeProxy) {
+    const proxyDc = Object.create(null);// 创建没有继承的属性
+    const BeProxyKeys = Object.keys(BeProxy);
+    for (let i = 0; i < BeProxyKeys.length; i += 1) {
+        const key = BeProxyKeys[i];
+        Object.defineProperty(proxyDc, key, {
+            enumerable: true,
+            configurable: true,
+            get() {
+                const value = BeProxy[key];
+                if (key == 'beforeEnter' && value !== undefined) {
+                    return (to, from, next) => {
+                        beforeEnterHooks(to, from, next, value, Router);
+                    };
+                }
+                return value;
+            },
+            set(v) {
+                BeProxy[key] = v;
+            },
+        });
+    }
+    return proxyDc;
+};
+
+/**
+ * 在uni-app没有注入生命周期时先直接代理相关生命周期数组
+ * @param {Object} Router
+ * @param {Object} key
+ * @param {Funtion} hookFun
+ */
+export const proxyEachHooks = function (Router, key, hookFun) {
+    const vueOldHooks = vuelifeHooks[key];
+    return new MyArray(Router, vueOldHooks, hookFun);
+};