chore: remove bad import and fix compat render type

Author: pikax

packages/runtime-core/src/compat/global.ts

@@ -57,7 +57,7 @@ import {
   isCompatEnabled,
   softAssertCompatEnabled
 } from './compatConfig'
-import { LegacyPublicInstance } from './instance'
+import { LegacyPublicInstance, LegacyPublicProperties } from './instance'
 
 /**
  * @deprecated the default `Vue` export has been removed in Vue 3. The type for
@@ -78,7 +78,7 @@ export type CompatVue = Pick<App, 'version' | 'component' | 'directive'> & {
   nextTick: typeof nextTick
 
   use(plugin: Plugin, ...options: any[]): CompatVue
-  mixin(mixin: ComponentOptions): CompatVue
+  mixin(mixin: LegacyComponentOptions): CompatVue
 
   component(name: string): Component | undefined
   component(name: string, component: Component): CompatVue
@@ -90,7 +90,7 @@ export type CompatVue = Pick<App, 'version' | 'component' | 'directive'> & {
   /**
    * @deprecated
    */
-  extend: (options?: ComponentOptions) => CompatVue
+  extend: (options?: LegacyComponentOptions) => CompatVue
   /**
    * @deprecated Vue 3 no longer needs set() for adding new properties.
    */
@@ -125,6 +125,9 @@ export type CompatVue = Pick<App, 'version' | 'component' | 'directive'> & {
   super: CompatVue
 }
 
+type LegacyComponentOptions = ComponentOptions &
+  ThisType<LegacyPublicProperties>
+
 export let isCopyingConfig = false
 
 // exported only for test

packages/vue-compat/__tests__/instance.spec.ts

@@ -7,7 +7,6 @@ import {
   toggleDeprecationWarning
 } from '../../runtime-core/src/compat/compatConfig'
 import { LegacyPublicInstance } from '../../runtime-core/src/compat/instance'
-import { defineComponent } from 'test-dts'
 
 beforeEach(() => {
   toggleDeprecationWarning(true)
@@ -240,7 +239,8 @@ test('INSTANCE_LISTENERS', () => {
     components: {
       child: {
         template: `<div/>`,
-        mounted() {
+        mounted(this: LegacyPublicInstance) {
+          // @ts-expect-error $listeners type: Record<string, Function | Function[]>
           listeners = this.$listeners
         }
       }
@@ -264,7 +264,7 @@ describe('INSTANCE_SCOPED_SLOTS', () => {
       components: {
         child: {
           compatConfig: { RENDER_FUNCTION: false },
-          render() {
+          render(this: LegacyPublicInstance) {
             slots = this.$scopedSlots
           }
         }
@@ -291,11 +291,14 @@ describe('INSTANCE_SCOPED_SLOTS', () => {
       components: {
         child: {
           compatConfig: { RENDER_FUNCTION: false },
-          render() {
+          render(this: LegacyPublicInstance) {
             normalSlots = this.$slots
             scopedSlots = this.$scopedSlots
           }
         }
+      },
+      render() {
+        this.$
       }
     }).$mount()