fix: preserve current hydration node during slot insertion

edison1105 · edison1105 · commit a6e039865e12 · 2025-07-30T18:23:07.000+08:00
diff --git a/packages/runtime-vapor/src/component.ts b/packages/runtime-vapor/src/component.ts
@@ -568,12 +568,19 @@ export function createComponentWithFallback(
   }
 
   if (rawSlots) {
-    isHydrating && setCurrentHydrationNode(el.firstChild)
+    let prev: Node
+    if (isHydrating) {
+      prev = currentHydrationNode!
+      setCurrentHydrationNode(el.firstChild)
+    }
     if (rawSlots.$) {
       // TODO dynamic slot fragment
     } else {
       insert(getSlot(rawSlots as RawSlots, 'default')!(), el)
     }
+    if (isHydrating) {
+      setCurrentHydrationNode(prev!)
+    }
   }
 
   if (!isHydrating && _insertionParent) {

Original file line number	Diff line number	Diff line change
`@@ -568,12 +568,19 @@ export function createComponentWithFallback(`
`568`	`568`	`}`
`569`	`569`
`570`	`570`	`if (rawSlots) {`
`571`		`- isHydrating && setCurrentHydrationNode(el.firstChild)`
	`571`	`+ let prev: Node`
	`572`	`+ if (isHydrating) {`
	`573`	`+ prev = currentHydrationNode!`
	`574`	`+ setCurrentHydrationNode(el.firstChild)`
	`575`	`+ }`
`572`	`576`	`if (rawSlots.$) {`
`573`	`577`	`// TODO dynamic slot fragment`
`574`	`578`	`} else {`
`575`	`579`	`insert(getSlot(rawSlots as RawSlots, 'default')!(), el)`
`576`	`580`	`}`
	`581`	`+ if (isHydrating) {`
	`582`	`+ setCurrentHydrationNode(prev!)`
	`583`	`+ }`
`577`	`584`	`}`
`578`	`585`
`579`	`586`	`if (!isHydrating && _insertionParent) {`