fix(jsx): JSX.Element extends VNode

packages/runtime-core/src/h.ts

@@ -4,6 +4,8 @@ import {
  createVNode,
  VNodeArrayChildren,
  Fragment,
+ Text,
+ Comment,
  isVNode
 } from './vnode'
 import { Teleport, TeleportProps } from './components/Teleport'
@@ -84,6 +86,16 @@ export function h(
  children?: RawChildren | RawSlots
 ): VNode
 
+// text/comment
+export function h(
+ type: typeof Text | typeof Comment,
+ children?: string | number | boolean
+): VNode
+export function h(
+ type: typeof Text | typeof Comment,
+ props?: null,
+ children?: string | number | boolean
+): VNode
 // fragment
 export function h(type: typeof Fragment, children?: VNodeArrayChildren): VNode
 export function h(

packages/runtime-dom/types/jsx.d.ts

@@ -26,6 +26,7 @@
 // Kanitkorn Sujautra <https://github.com/lukyth>
 // Sebastian Silbermann <https://github.com/eps1lon>
 
+import { VNode } from '@vue/runtime-core'
 import * as CSS from 'csstype'
 
 export interface CSSProperties extends CSS.Properties<string | number> {
@@ -1338,7 +1339,7 @@ type NativeElements = {
 
 declare global {
  namespace JSX {
- interface Element {}
+ interface Element extends VNode {}
  interface ElementClass {
  $props: {}
  }

test-dts/functionalComponent.test-d.tsx

@@ -1,12 +1,14 @@
 import {
+ h,
+ Text,
  FunctionalComponent,
  expectError,
  expectType,
  Component
 } from './index'
 
 // simple function signature
-const Foo = (props: { foo: number }) => props.foo
+const Foo = (props: { foo: number }) => h(Text, null, props.foo)
 
 // TSX
 expectType<JSX.Element>(<Foo foo={1} />)

test-dts/tsx.test-d.tsx

@@ -5,9 +5,11 @@ import {
  Fragment,
  Teleport,
  expectError,
- expectType
+ expectType,
+ VNode
 } from './index'
 
+expectType<VNode>(<div />)
 expectType<JSX.Element>(<div />)
 expectType<JSX.Element>(<div id="foo" />)
 expectType<JSX.Element>(<input value="foo" />)