From 3b4d45e076c90de7ab51067ab228fce3cfc05f2b Mon Sep 17 00:00:00 2001
From: Lee <peteralfredlee@gmail.com>
Date: Sat, 29 May 2021 19:16:20 +0800
Subject: [PATCH] remove __FEATURE_ESM_BUNDLER_WARN__ flag. (#514)

---
 jest.config.js                | 3 +--
 packages/global.d.ts          | 1 -
 packages/vue-i18n/README.md   | 4 ----
 packages/vue-i18n/src/misc.ts | 4 ----
 rollup.config.js              | 1 -
 5 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/jest.config.js b/jest.config.js
index c1e068839..1a037b545 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -72,8 +72,7 @@ module.exports = {
     __ESM_BROWSER__: false,
     __NODE_JS__: true,
     __FEATURE_FULL_INSTALL__: true,
-    __FEATURE_LEGACY_API__: true,
-    __FEATURE_ESM_BUNDLER_WARN__: true
+    __FEATURE_LEGACY_API__: true
   },
 
   // The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
diff --git a/packages/global.d.ts b/packages/global.d.ts
index 5d695d751..e54bd9f1c 100644
--- a/packages/global.d.ts
+++ b/packages/global.d.ts
@@ -15,7 +15,6 @@ declare let __FEATURE_PROD_VUE_DEVTOOLS__: boolean
 declare let __FEATURE_PROD_INTLIFY_DEVTOOLS__: boolean
 declare let __FEATURE_LEGACY_API__: boolean
 declare let __FEATURE_FULL_INSTALL__: boolean
-declare let __FEATURE_ESM_BUNDLER_WARN__: boolean
 
 // for tests
 declare namespace jest {
diff --git a/packages/vue-i18n/README.md b/packages/vue-i18n/README.md
index d28b035a9..8c811dc68 100644
--- a/packages/vue-i18n/README.md
+++ b/packages/vue-i18n/README.md
@@ -65,10 +65,6 @@ The build will work without configuring these flags, however it is **strongly re
 
 Note: the replacement value **must be boolean literals** and cannot be strings, otherwise the bundler/minifier will not be able to properly evaluate the conditions.
 
-## Other Feature Flags
-
-- `__FEATURE_ESM_BUNDLER_WARN__` (Suppress / Not suppress feature flags recommended warnings in build for `esm-bulder`)
-
 ## :copyright: License
 
 [MIT](http://opensource.org/licenses/MIT)
diff --git a/packages/vue-i18n/src/misc.ts b/packages/vue-i18n/src/misc.ts
index 65f9e6778..dda9b789b 100644
--- a/packages/vue-i18n/src/misc.ts
+++ b/packages/vue-i18n/src/misc.ts
@@ -36,10 +36,6 @@ export function initFeatureFlags(): void {
     getGlobalThis().__INTLIFY_PROD_DEVTOOLS__ = false
   }
 
-  if (__DEV__ && typeof __FEATURE_ESM_BUNDLER_WARN__ === 'boolean') {
-    needWarn = __FEATURE_ESM_BUNDLER_WARN__
-  }
-
   if (__DEV__ && needWarn) {
     console.warn(
       `You are running the esm-bundler build of vue-i18n. It is recommended to ` +
diff --git a/rollup.config.js b/rollup.config.js
index a395881ca..96b6b951c 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -235,7 +235,6 @@ function createReplacePlugin(
     __FEATURE_PROD_INTLIFY_DEVTOOLS__: isBundlerESMBuild
       ? `__INTLIFY_PROD_DEVTOOLS__`
       : false,
-    __FEATURE_ESM_BUNDLER_WARN__: true,
     preventAssignment: false,
     ...(isProduction && isBrowserBuild
       ? {