update: 修复小程序端不能直接在模版内使用$emit的Bug askID:82865

packages/uni-mp-weixin/dist/index.js

@@ -1075,7 +1075,19 @@ function handleEvent (event) {
           ) { // mp-weixin,mp-toutiao 抽象节点模拟 scoped slots
             handlerCtx = handlerCtx.$parent.$parent;
           }
-          const handler = handlerCtx[methodName];
+          const handler = handlerCtx[methodName];
+          if (methodName === '$emit') {
+            handlerCtx.$emit.apply(handlerCtx,
+              processEventArgs(
+                this.$vm,
+                event,
+                eventArray[1],
+                eventArray[2],
+                isCustom,
+                methodName
+              ));
+            return
+          }
           if (!isFn(handler)) {
             throw new Error(` _vm.${methodName} is not a function`)
           }

src/core/runtime/wrapper/util.js

@@ -486,7 +486,19 @@ export function handleEvent (event) {
           ) { // mp-weixin,mp-toutiao 抽象节点模拟 scoped slots
             handlerCtx = handlerCtx.$parent.$parent
           }
-          const handler = handlerCtx[methodName]
+          const handler = handlerCtx[methodName]
+          if (methodName === '$emit') {
+            handlerCtx.$emit.apply(handlerCtx,
+              processEventArgs(
+                this.$vm,
+                event,
+                eventArray[1],
+                eventArray[2],
+                isCustom,
+                methodName
+              ))
+            return
+          }
           if (!isFn(handler)) {
             throw new Error(` _vm.${methodName} is not a function`)
           }