仿互站小程序

vant/mixins/observer/behavior.js

@@ -0,0 +1,37 @@
+function t(t, e) {
+    return new Promise(function(i) {
+        t.setData(e, i);
+    });
+}
+
+Object.defineProperty(exports, "__esModule", {
+    value: !0
+});
+
+exports.behavior = Behavior({
+    created: function() {
+        var t = this;
+        if (this.$options) {
+            var e = {}, i = this.$options().computed, o = Object.keys(i);
+            this.calcComputed = function() {
+                var n = {};
+                return o.forEach(function(o) {
+                    var s = i[o].call(t);
+                    e[o] !== s && (e[o] = n[o] = s);
+                }), n;
+            };
+        }
+    },
+    attached: function() {
+        this.set();
+    },
+    methods: {
+        set: function(e, i) {
+            var o = this, n = [];
+            return e && n.push(t(this, e)), this.calcComputed && n.push(t(this, this.calcComputed())), 
+            Promise.all(n).then(function(t) {
+                return i && "function" == typeof i && i.call(o), t;
+            });
+        }
+    }
+});

vant/mixins/observer/index.js

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+Object.defineProperty(exports, "__esModule", {
+    value: !0
+}), exports.observe = function(o, t) {
+    var s = o.watch, i = o.computed;
+    if (t.behaviors.push(e.behavior), s) {
+        var p = t.properties || {};
+        Object.keys(s).forEach(function(e) {
+            if (e in p) {
+                var r = p[e];
+                null !== r && "type" in r || (r = {
+                    type: r
+                }), r.observer = s[e], p[e] = r;
+            }
+        }), t.properties = p;
+    }
+    i && (t.methods = t.methods || {}, t.methods.$options = function() {
+        return o;
+    }, t.properties && (0, r.observeProps)(t.properties));
+};
+
+var e = require("./behavior"), r = require("./props");

vant/mixins/observer/props.js

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+Object.defineProperty(exports, "__esModule", {
+    value: !0
+}), exports.observeProps = function(e) {
+    e && Object.keys(e).forEach(function(t) {
+        var r = e[t];
+        null !== r && "type" in r || (r = {
+            type: r
+        });
+        var s = r.observer;
+        r.observer = function() {
+            s && ("string" == typeof s && (s = this[s]), s.apply(this, arguments)), this.set();
+        }, e[t] = r;
+    });
+};