From 53161b46382f9b0e57124c08eea4b526c6f1e995 Mon Sep 17 00:00:00 2001
From: Marcin Szczepanski <mszczepanski@atlassian.com>
Date: Tue, 18 Jun 2024 10:55:57 +1000
Subject: [PATCH] Improve constant module bundling error message (#9803)

* Improve constant module bundling error message

* Avoid work when not throwing error
---
 .../packagers/js/src/ScopeHoistingPackager.js   | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/packages/packagers/js/src/ScopeHoistingPackager.js b/packages/packagers/js/src/ScopeHoistingPackager.js
index 980b9683072..4f3157b7849 100644
--- a/packages/packagers/js/src/ScopeHoistingPackager.js
+++ b/packages/packagers/js/src/ScopeHoistingPackager.js
@@ -17,7 +17,7 @@ import {
 } from '@parcel/utils';
 import SourceMap from '@parcel/source-map';
 import nullthrows from 'nullthrows';
-import invariant from 'assert';
+import invariant, {AssertionError} from 'assert';
 import ThrowableDiagnostic, {
   convertSourceLocationToHighlight,
 } from '@parcel/diagnostic';
@@ -922,10 +922,17 @@ ${code}
 
   isWrapped(resolved: Asset, parentAsset: Asset): boolean {
     if (resolved.meta.isConstantModule) {
-      invariant(
-        this.bundle.hasAsset(resolved),
-        'Constant module not found in bundle',
-      );
+      if (!this.bundle.hasAsset(resolved)) {
+        throw new AssertionError({
+          message: `Constant module ${path.relative(
+            this.options.projectRoot,
+            resolved.filePath,
+          )} referenced from ${path.relative(
+            this.options.projectRoot,
+            parentAsset.filePath,
+          )} not found in bundle ${this.bundle.name}`,
+        });
+      }
       return false;
     }
     return (