fix(runtime): handle undefined default slot for Fragment

zhiyuanzmj · zhiyuanzmj · commit 8a349d173b79 · 2025-09-12T11:07:25.000+08:00
diff --git a/packages/runtime/src/component.ts b/packages/runtime/src/component.ts
@@ -49,7 +49,7 @@ const createProxyComponent = (
   ...args: any[]
 ) => {
   if (type === Fragment) {
-    type = (_, { slots }) => slots.default()
+    type = (_, { slots }) => (slots.default ? slots.default() : [])
     props = null
   }
 

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,7 @@ const createProxyComponent = (`
`49`	`49`	`...args: any[]`
`50`	`50`	`) => {`
`51`	`51`	`if (type === Fragment) {`
`52`		`- type = (_, { slots }) => slots.default()`
	`52`	`+ type = (_, { slots }) => (slots.default ? slots.default() : [])`
`53`	`53`	`props = null`
`54`	`54`	`}`
`55`	`55`