feat(jsx2mp-loader): support remove unused import and require

raxjs · Oct 14, 2024 · a74ae9a · a74ae9a
1 parent 6585ead
commit a74ae9a
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Showing 4 changed files with 30 additions and 3 deletions.
diff --git a/packages/jsx2mp-loader/CHANGELOG.md b/packages/jsx2mp-loader/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.37] UnRelease
+
+- Feat: support remove unused import and require of App、Page、Component、Npm package
+- Feat: miniappConfig compat the case where the entry of component use multiple platform like index.wechat.js, index.ali.js. And don't change the filed main that can't be resolved
+- Feat: hackRegeneratorRuntimeFunction in ali miniapp of copyNpm
+- Fix: support platform-loader
+- Fix: script-loader exclude 'plugin://xx/comp' in usingComponents
 
 ## [0.4.36] - 2022-06-22
 

diff --git a/packages/jsx2mp-loader/package.json b/packages/jsx2mp-loader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jsx2mp-loader",
-  "version": "0.4.36",
+  "version": "0.4.37-7",
   "description": "",
   "files": [
     "src"
@@ -17,7 +17,7 @@
     "@babel/plugin-proposal-export-default-from": "^7.5.2",
     "@babel/plugin-transform-typescript": "^7.7.4",
     "@babel/preset-env": "^7.5.5",
-    "babel-plugin-danger-remove-unused-import": "^2.0.0",
+    "babel-plugin-danger-remove-unused-imports": "^2.1.1",
     "babel-plugin-minify-dead-code-elimination-while-loop-fixed": "^0.3.0",
     "babel-plugin-transform-define": "^1.3.1",
     "chalk": "^2.4.2",

diff --git a/packages/jsx2mp-loader/src/script-loader.js b/packages/jsx2mp-loader/src/script-loader.js
@@ -10,6 +10,7 @@ const { isNpmModule, isJSONFile, isTypescriptFile } = require('./utils/judgeModu
 const isMiniappComponent = require('./utils/isMiniappComponent');
 const parse = require('./utils/parseRequest');
 const { output, transformCode } = require('./output');
+const eliminateDeadCode = require('./utils/dce');
 
 const ScriptLoader = __filename;
 
@@ -250,6 +251,7 @@ module.exports = function scriptLoader(content) {
         content
       ].join('\n');
     } else {
+      content = eliminateDeadCode(content);
       // outputFile(rawContent);
       outputFile(content);
     }

diff --git a/packages/jsx2mp-loader/src/utils/dce.js b/packages/jsx2mp-loader/src/utils/dce.js
@@ -15,12 +15,29 @@ const parserOpts = {
   ], // support all plugins
 };
 
+function removeDeadCode(source) {
+  // 按需
+  // if (!source?.includes('import ')) {
+  //   return source;
+  // }
+  return transformSync(source, {
+    parserOpts,
+    plugins: [
+      'babel-plugin-minify-dead-code-elimination-while-loop-fixed'
+    ]
+  }).code;
+}
+
 function removeUnusedImport(source) {
+  // 按需
+  // if (!source?.includes('import ')) {
+  //   return source;
+  // }
   return transformSync(source, {
     parserOpts,
     plugins: [
       [
-        require('babel-plugin-danger-remove-unused-import'),
+        require('babel-plugin-danger-remove-unused-imports'),
         {
           ignore: 'rax'
         }
@@ -38,6 +55,7 @@ const codeProcessor = (processors = [], sourceCode) => processors
 
 function eliminateDeadCode(source) {
   const processors = [
+    removeDeadCode,
     removeUnusedImport,
   ];