From 239f511276d04d963f31d32ee63b3df58b213eaa Mon Sep 17 00:00:00 2001
From: qiang <guoshengqiang@live.com>
Date: Thu, 8 Sep 2022 16:40:45 +0800
Subject: [PATCH] fix: clone babelLoader to use dynamicImport plugin

---
 packages/webpack-uni-mp-loader/lib/script-new.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/packages/webpack-uni-mp-loader/lib/script-new.js b/packages/webpack-uni-mp-loader/lib/script-new.js
index f8fbbd104..828d4034f 100644
--- a/packages/webpack-uni-mp-loader/lib/script-new.js
+++ b/packages/webpack-uni-mp-loader/lib/script-new.js
@@ -125,12 +125,21 @@ module.exports = function (content, map) {
       usingComponents[name] = `/${source}`
     })
 
-    const babelLoader = findBabelLoader(this.loaders)
+    let babelLoader = findBabelLoader(this.loaders)
     if (!babelLoader) {
       callback(new Error(uniI18n.__('mpLoader.findFail', {
         0: 'babel-loader'
       })), content)
     } else {
+      const webpack = require('webpack')
+      if (webpack.version[0] > 4) {
+        // clone babelLoader and options
+        const index = this.loaders.indexOf(babelLoader)
+        const newBabelLoader = Object.assign({}, babelLoader)
+        Object.assign(newBabelLoader, { options: Object.assign({}, babelLoader.options) })
+        this.loaders.splice(index, 1, newBabelLoader)
+        babelLoader = newBabelLoader
+      }
       addDynamicImport(babelLoader, resourcePath, dynamicImports)
 
       updateUsingComponents(resourcePath, usingComponents, type)
@@ -139,4 +148,4 @@ module.exports = function (content, map) {
   }, err => {
     callback(err, content, map)
   })
-}
+}
-- 
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