refactor: adjust internal vnode types + more dts tests

test-dts/tsx.test-d.tsx

@@ -0,0 +1,41 @@
+// TSX w/ createComponent is tested in createComponent.test-d.tsx
+
+import { expectError, expectType } from 'tsd'
+import { KeepAlive, Suspense, Fragment, Portal } from '@vue/runtime-dom'
+
+expectType<JSX.Element>(<div />)
+expectType<JSX.Element>(<div id="foo" />)
+expectType<JSX.Element>(<input value="foo" />)
+
+// unknown prop
+expectError(<div foo="bar" />)
+
+// allow key/ref on arbitrary element
+expectType<JSX.Element>(<div key="foo" />)
+expectType<JSX.Element>(<div ref="bar" />)
+
+expectType<JSX.Element>(
+  <input
+    onInput={e => {
+      // infer correct event type
+      expectType<EventTarget | null>(e.target)
+    }}
+  />
+)
+
+// built-in types
+expectType<JSX.Element>(<Fragment />)
+expectType<JSX.Element>(<Fragment key="1" />)
+
+expectType<JSX.Element>(<Portal target="#foo" />)
+// target is required
+expectError(<Portal />)
+
+// KeepAlive
+expectType<JSX.Element>(<KeepAlive include="foo" exclude={['a']} />)
+expectError(<KeepAlive include={123} />)
+
+// Suspense
+expectType<JSX.Element>(<Suspense />)
+expectType<JSX.Element>(<Suspense onResolve={() => {}} onRecede={() => {}} />)
+expectError(<Suspense onResolve={123} />)