From 1bb0478883255d4d7b7ed99f425970a93d7800ff Mon Sep 17 00:00:00 2001
From: 13659257719 <819781841@qq.com>
Date: Thu, 12 Oct 2023 15:56:45 +0800
Subject: [PATCH] =?UTF-8?q?[inula]<bugfix>=20=E5=A4=A7=E6=95=B0=E7=BB=84?=
 =?UTF-8?q?=E5=90=88=E5=B9=B6=E4=BD=BF=E7=94=A8=20concat?=
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---
 packages/inula/src/renderer/TreeBuilder.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/inula/src/renderer/TreeBuilder.ts b/packages/inula/src/renderer/TreeBuilder.ts
index dff56e07..50326e25 100644
--- a/packages/inula/src/renderer/TreeBuilder.ts
+++ b/packages/inula/src/renderer/TreeBuilder.ts
@@ -55,6 +55,9 @@ import { getPathArr } from './utils/vNodePath';
 import { injectUpdater } from '../external/devtools';
 import { popCurrentRoot, pushCurrentRoot } from './RootStack';
 
+// 使用 push 扩展语法合并数组场景下被合并数组元素的上限（经验值）
+const MAX_NUM_PUSH_MERGE_ARRAY = 1000;
+
 // 不可恢复错误
 let unrecoverableErrorDuringBuild: any = null;
 
@@ -81,7 +84,12 @@ function collectDirtyNodes(vNode: VNode, parent: VNode): void {
     if (parent.dirtyNodes === null) {
       parent.dirtyNodes = dirtyNodes;
     } else {
-      parent.dirtyNodes.push(...vNode.dirtyNodes!);
+      // 超过上限继续使用 push 方法合并数组将导致性能劣化/调用栈溢出
+      if (dirtyNodes.length > MAX_NUM_PUSH_MERGE_ARRAY) {
+        parent.dirtyNodes = parent.dirtyNodes.concat(dirtyNodes);
+      } else {
+        parent.dirtyNodes.push(...dirtyNodes);
+      }
       dirtyNodes.length = 0;
     }
     vNode.dirtyNodes = null;