From 54b57c420933d3b9c339263ea74fe61b1261d6e3 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 25 Feb 2026 22:46:55 +0000
Subject: [PATCH 1/3] Initial plan


From 0422fbbe45534c7860b883c986ae31df293d4107 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 25 Feb 2026 23:06:29 +0000
Subject: [PATCH 2/3] Fix benchmark app vite config for import.meta.env?.DEV
 replacement and re-apply COMPUTED_GETTERS fix

Co-authored-by: NullVoxPopuli <199018+NullVoxPopuli@users.noreply.github.com>
---
 .../@ember/-internals/metal/lib/decorator.ts  |  6 +-----
 smoke-tests/benchmark-app/vite.config.mjs     | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/packages/@ember/-internals/metal/lib/decorator.ts b/packages/@ember/-internals/metal/lib/decorator.ts
index 3e6b262f3bc..098ddc1c61b 100644
--- a/packages/@ember/-internals/metal/lib/decorator.ts
+++ b/packages/@ember/-internals/metal/lib/decorator.ts
@@ -75,11 +75,7 @@ export abstract class ComputedDescriptor {
   abstract set(obj: object, keyName: string, value: any | null | undefined): any | null | undefined;
 }
 
-export let COMPUTED_GETTERS: WeakSet<() => unknown>;
-
-if (import.meta.env?.DEV) {
-  COMPUTED_GETTERS = new WeakSet();
-}
+export const COMPUTED_GETTERS = new WeakSet<() => unknown>();
 
 function DESCRIPTOR_GETTER_FUNCTION(name: string, descriptor: ComputedDescriptor): () => unknown {
   function getter(this: object): unknown {
diff --git a/smoke-tests/benchmark-app/vite.config.mjs b/smoke-tests/benchmark-app/vite.config.mjs
index 09e1d1c0299..5ef1b1b7ce8 100644
--- a/smoke-tests/benchmark-app/vite.config.mjs
+++ b/smoke-tests/benchmark-app/vite.config.mjs
@@ -2,12 +2,27 @@ import { defineConfig } from 'vite';
 import { extensions, ember } from '@embroider/vite';
 import { babel } from '@rollup/plugin-babel';
 
-export default defineConfig({
+export default defineConfig(({ mode }) => ({
   plugins: [
     ember(),
+    {
+      name: 'define custom import.meta.env',
+      transform(code) {
+        if (mode === 'development') {
+          if (code.includes('import.meta.env?.DEV')) {
+            return code.replace(/import\.meta\.env\?\.DEV/g, 'true');
+          }
+        } else if (mode === 'production') {
+          if (code.includes('import.meta.env?.DEV')) {
+            return code.replace(/import\.meta\.env\?\.DEV/g, 'false');
+          }
+        }
+        return undefined;
+      },
+    },
     babel({
       babelHelpers: 'runtime',
       extensions,
     }),
   ],
-});
+}));

From 2cf79a3030308404f104c11404b3195aea2b0b0d Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 26 Feb 2026 00:12:17 +0000
Subject: [PATCH 3/3] Revert all changes in this branch

Co-authored-by: NullVoxPopuli <199018+NullVoxPopuli@users.noreply.github.com>
---
 .../@ember/-internals/metal/lib/decorator.ts  |  6 +++++-
 smoke-tests/benchmark-app/vite.config.mjs     | 19 ++-----------------
 2 files changed, 7 insertions(+), 18 deletions(-)

diff --git a/packages/@ember/-internals/metal/lib/decorator.ts b/packages/@ember/-internals/metal/lib/decorator.ts
index 098ddc1c61b..3e6b262f3bc 100644
--- a/packages/@ember/-internals/metal/lib/decorator.ts
+++ b/packages/@ember/-internals/metal/lib/decorator.ts
@@ -75,7 +75,11 @@ export abstract class ComputedDescriptor {
   abstract set(obj: object, keyName: string, value: any | null | undefined): any | null | undefined;
 }
 
-export const COMPUTED_GETTERS = new WeakSet<() => unknown>();
+export let COMPUTED_GETTERS: WeakSet<() => unknown>;
+
+if (import.meta.env?.DEV) {
+  COMPUTED_GETTERS = new WeakSet();
+}
 
 function DESCRIPTOR_GETTER_FUNCTION(name: string, descriptor: ComputedDescriptor): () => unknown {
   function getter(this: object): unknown {
diff --git a/smoke-tests/benchmark-app/vite.config.mjs b/smoke-tests/benchmark-app/vite.config.mjs
index 5ef1b1b7ce8..09e1d1c0299 100644
--- a/smoke-tests/benchmark-app/vite.config.mjs
+++ b/smoke-tests/benchmark-app/vite.config.mjs
@@ -2,27 +2,12 @@ import { defineConfig } from 'vite';
 import { extensions, ember } from '@embroider/vite';
 import { babel } from '@rollup/plugin-babel';
 
-export default defineConfig(({ mode }) => ({
+export default defineConfig({
   plugins: [
     ember(),
-    {
-      name: 'define custom import.meta.env',
-      transform(code) {
-        if (mode === 'development') {
-          if (code.includes('import.meta.env?.DEV')) {
-            return code.replace(/import\.meta\.env\?\.DEV/g, 'true');
-          }
-        } else if (mode === 'production') {
-          if (code.includes('import.meta.env?.DEV')) {
-            return code.replace(/import\.meta\.env\?\.DEV/g, 'false');
-          }
-        }
-        return undefined;
-      },
-    },
     babel({
       babelHelpers: 'runtime',
       extensions,
     }),
   ],
-}));
+});