feat: toRefs

packages/runtime-core/src/apiInject.ts

@@ -1,5 +1,5 @@
 import { currentInstance } from './component'
-import { immutable } from './apiState'
+import { immutable } from './apiReactivity'
 import { isObject } from '@vue/shared'
 
 export interface InjectionKey<T> extends Symbol {}

packages/runtime-core/src/apiReactivity.ts

@@ -1,6 +1,7 @@
 export {
   ref,
   isRef,
+  toRefs,
   reactive,
   isReactive,
   immutable,

packages/runtime-core/src/apiWatch.ts

@@ -7,7 +7,7 @@ import {
 } from '@vue/reactivity'
 import { queueJob, queuePostFlushCb } from './scheduler'
 import { EMPTY_OBJ, isObject, isArray, isFunction } from '@vue/shared'
-import { recordEffect } from './apiState'
+import { recordEffect } from './apiReactivity'
 
 export interface WatchOptions {
   lazy?: boolean

packages/runtime-core/src/index.ts

@@ -19,7 +19,7 @@ export { createRenderer, RendererOptions } from './createRenderer'
 export { Slot, Slots } from './componentSlots'
 export { PropType, ComponentPropsOptions } from './componentProps'
 
-export * from './apiState'
+export * from './apiReactivity'
 export * from './apiWatch'
 export * from './apiLifecycle'
 export * from './apiInject'