From 9e031275d7be2c4eed61b76fe2bd2eeed6e54e1f Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E7=99=BD=E9=9B=BE=E4=B8=89=E8=AF=AD?=
 <32354856+baiwusanyu-c@users.noreply.github.com>
Date: Wed, 13 Dec 2023 15:16:33 +0800
Subject: [PATCH] fix: throw error without `script` block (#61)
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Co-authored-by: 三咲智子 Kevin Deng <sxzz@sxzz.moe>
---
 packages/runtime-vapor/src/component.ts | 2 +-
 packages/runtime-vapor/src/render.ts    | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/packages/runtime-vapor/src/component.ts b/packages/runtime-vapor/src/component.ts
index 5ff3b86b8f..68e3c6942f 100644
--- a/packages/runtime-vapor/src/component.ts
+++ b/packages/runtime-vapor/src/component.ts
@@ -20,7 +20,7 @@ export type FunctionalComponent = SetupFn & {
 }
 export interface ObjectComponent {
   props: ComponentPropsOptions
-  setup: SetupFn
+  setup?: SetupFn
   render(ctx: any): Block
 }
 
diff --git a/packages/runtime-vapor/src/render.ts b/packages/runtime-vapor/src/render.ts
index 422d5e689e..f55acd5760 100644
--- a/packages/runtime-vapor/src/render.ts
+++ b/packages/runtime-vapor/src/render.ts
@@ -50,11 +50,10 @@ export function mountComponent(
 
     const setupFn =
       typeof component === 'function' ? component : component.setup
-
-    const state = setupFn(props, ctx)
     instance.proxy = markRaw(
       new Proxy({ _: instance }, PublicInstanceProxyHandlers),
     )
+    const state = setupFn && setupFn(props, ctx)
     if (state && '__isScriptSetup' in state) {
       instance.setupState = proxyRefs(state)
       return (instance.block = component.render(instance.proxy))
-- 
2.47.2