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fix(runtime-vapor): prevent mounting functional components as virtual DOM #13385

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fix(runtime-vapor): prevent mounting functional components as virtual DOM #13385

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7 changes: 4 additions & 3 deletions packages/runtime-vapor/src/component.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -144,8 +144,9 @@ export function createComponent(
locateHydrationNode()
}

const isFnComponent = isFunction(component)
// vdom interop enabled and component is not an explicit vapor component
if (appContext.vapor && !component.__vapor) {
if (appContext.vapor && !isFnComponent && !component.__vapor) {
const frag = appContext.vapor.vdomMount(
component as any,
rawProps,
Expand Down Expand Up @@ -199,7 +200,7 @@ export function createComponent(
setupPropsValidation(instance)
}

const setupFn = isFunction(component) ? component : component.setup
const setupFn = isFnComponent ? component : component.setup
const setupResult = setupFn
? callWithErrorHandling(setupFn, instance, ErrorCodes.SETUP_FUNCTION, [
instance.props,
Expand All @@ -208,7 +209,7 @@ export function createComponent(
: EMPTY_OBJ

if (__DEV__ && !isBlock(setupResult)) {
if (isFunction(component)) {
if (isFnComponent) {
warn(`Functional vapor component must return a block directly.`)
instance.block = []
} else if (!component.render) {
Expand Down