From: Evan You <yyx990803@gmail.com>
Date: Mon, 8 May 2023 04:12:15 +0000 (+0800)
Subject: fix(build): retain defineComponent() treeshakability in Rollup
X-Git-Tag: v3.3.0-beta.5~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2172f3a0ebbd7153e209dd8df6d9724bc524d9a;p=thirdparty%2Fvuejs%2Fcore.git

fix(build): retain defineComponent() treeshakability in Rollup

close #8236
---

diff --git a/packages/runtime-core/src/apiDefineComponent.ts b/packages/runtime-core/src/apiDefineComponent.ts
index 9edb9965e2..76e9567fe2 100644
--- a/packages/runtime-core/src/apiDefineComponent.ts
+++ b/packages/runtime-core/src/apiDefineComponent.ts
@@ -279,6 +279,9 @@ export function defineComponent(
   extraOptions?: ComponentOptions
 ) {
   return isFunction(options)
-    ? extend({ name: options.name }, extraOptions, { setup: options })
+    ? // #8326: extend call and options.name access are considered side-effects
+      // by Rollup, so we have to wrap it in a pure-annotated IIFE.
+      /*#__PURE__*/ (() =>
+        extend({ name: options.name }, extraOptions, { setup: options }))()
     : options
 }