From 9edc4fa1fe54d36edd7208d54eef2ed23da1ad6c Mon Sep 17 00:00:00 2001
From: pikax <david-181@hotmail.com>
Date: Sat, 4 Jan 2020 14:22:09 +0000
Subject: [PATCH] types: fix failed typings?

---
 packages/runtime-core/__tests__/apiTemplateRef.spec.ts | 3 +--
 packages/runtime-core/src/apiWatch.ts                  | 5 ++++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/packages/runtime-core/__tests__/apiTemplateRef.spec.ts b/packages/runtime-core/__tests__/apiTemplateRef.spec.ts
index d164d4571..f9b6b1b58 100644
--- a/packages/runtime-core/__tests__/apiTemplateRef.spec.ts
+++ b/packages/runtime-core/__tests__/apiTemplateRef.spec.ts
@@ -4,7 +4,6 @@ import {
   h,
   render,
   nextTick,
-  Ref,
   createComponent
 } from '@vue/runtime-test'
 
@@ -142,7 +141,7 @@ describe('api: template refs', () => {
       foo: ref(null),
       bar: ref(null)
     }
-    const refKey: Ref<keyof typeof refs> = ref('foo')
+    const refKey = ref<keyof typeof refs>('foo')
 
     const Comp = {
       setup() {
diff --git a/packages/runtime-core/src/apiWatch.ts b/packages/runtime-core/src/apiWatch.ts
index efd3dfd40..a3fd6acfa 100644
--- a/packages/runtime-core/src/apiWatch.ts
+++ b/packages/runtime-core/src/apiWatch.ts
@@ -72,7 +72,10 @@ export function watch<T>(
 // Readonly constraint helps the callback to correctly infer value types based
 // on position in the source array. Otherwise the values will get a union type
 // of all possible value types.
-export function watch<T extends Readonly<WatcherSource<unknown>[]>>(
+export function watch<
+  T extends Readonly<WatcherSource<TArgs>>,
+  TArgs extends Array<any> = any[]
+>(
   sources: T,
   cb: WatchHandler<MapSources<T>>,
   options?: WatchOptions