From b289b2d433f94949730e1f041f3c8e16c417e9d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=89=E5=92=B2=E6=99=BA=E5=AD=90?= <sxzz@sxzz.moe>
Date: Thu, 20 Jan 2022 16:17:41 +0800
Subject: [PATCH] fix(plugin-vue): compiler is null on rollup (#6566)

---
 packages/plugin-vue/src/index.ts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/plugin-vue/src/index.ts b/packages/plugin-vue/src/index.ts
index f12dbd5b4cc0ef..d9b1e603e6d019 100644
--- a/packages/plugin-vue/src/index.ts
+++ b/packages/plugin-vue/src/index.ts
@@ -97,7 +97,7 @@ export default function vuePlugin(rawOptions: Options = {}): Plugin {
     reactivityTransform,
     root: process.cwd(),
     sourceMap: true,
-    compiler: null as any // to be set in configResolved
+    compiler: null as any // to be set in buildStart
   }
 
   // Temporal handling for 2.7 breaking change
@@ -135,8 +135,7 @@ export default function vuePlugin(rawOptions: Options = {}): Plugin {
         ...options,
         root: config.root,
         sourceMap: config.command === 'build' ? !!config.build.sourcemap : true,
-        isProduction: config.isProduction,
-        compiler: options.compiler || resolveCompiler(config.root)
+        isProduction: config.isProduction
       }
     },
 
@@ -144,6 +143,10 @@ export default function vuePlugin(rawOptions: Options = {}): Plugin {
       options.devServer = server
     },
 
+    buildStart() {
+      options.compiler = options.compiler || resolveCompiler(options.root)
+    },
+
     async resolveId(id) {
       // component export helper
       if (id === EXPORT_HELPER_ID) {