types(watch): watch array callback params type tuples (#912)

Author: a145789

src/apis/watch.ts

@@ -424,7 +424,7 @@ export function watch<
   T extends Readonly<WatchSource<unknown>[]>,
   Immediate extends Readonly<boolean> = false
 >(
-  sources: T,
+  sources: [...T],
   cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
   options?: WatchOptions<Immediate>
 ): WatchStopHandle

test-dts/watch.test-d.tsx

@@ -16,7 +16,7 @@ watch([source, source2, source3], (values, oldValues) => {
 })
 
 // const array
-watch([source, source2, source3] as const, (values, oldValues) => {
+watch([source, source2, source3], (values, oldValues) => {
   expectType<Readonly<[string, string, number]>>(values)
   expectType<Readonly<[string, string, number]>>(oldValues)
 })
@@ -42,7 +42,7 @@ watch(
 
 // const array
 watch(
-  [source, source2, source3] as const,
+  [source, source2, source3],
   (values, oldValues) => {
     expectType<Readonly<[string, string, number]>>(values)
     expectType<

test/v3/runtime-core/apiWatch.spec.ts

@@ -143,7 +143,7 @@ describe('api: watch', () => {
     const status = ref(false)
 
     let dummy
-    watch([() => state.count, status] as const, (vals, oldVals) => {
+    watch([() => state.count, status], (vals, oldVals) => {
       dummy = [vals, oldVals]
       const [count] = vals
       const [, oldStatus] = oldVals