From 0c928aa079df5060c5bc7a745a128be62fd86cd2 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Tue, 12 Apr 2022 17:29:25 +0800
Subject: [PATCH] refactor: esbuild handles `target` and
 `useDefineForClassFields` (#7698)

---
 packages/vite/src/node/plugins/esbuild.ts | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/packages/vite/src/node/plugins/esbuild.ts b/packages/vite/src/node/plugins/esbuild.ts
index db216c7d6b0d77..c982b4e61f30c8 100644
--- a/packages/vite/src/node/plugins/esbuild.ts
+++ b/packages/vite/src/node/plugins/esbuild.ts
@@ -81,6 +81,7 @@ export async function transformWithEsbuild(
     // these fields would affect the compilation result
     // https://esbuild.github.io/content-types/#tsconfig-json
     const meaningfulFields: Array<keyof TSCompilerOptions> = [
+      'target',
       'jsxFactory',
       'jsxFragmentFactory',
       'useDefineForClassFields',
@@ -98,17 +99,9 @@ export async function transformWithEsbuild(
           compilerOptionsForFile[field] = loadedCompilerOptions[field]
         }
       }
-
-      // align with TypeScript 4.3
-      // https://github.com/microsoft/TypeScript/pull/42663
-      if (loadedCompilerOptions.target?.toLowerCase() === 'esnext') {
-        compilerOptionsForFile.useDefineForClassFields =
-          loadedCompilerOptions.useDefineForClassFields ?? true
-      }
     }
 
     tsconfigRaw = {
-      ...tsconfigRaw,
       compilerOptions: {
         ...compilerOptionsForFile,
         ...tsconfigRaw?.compilerOptions