From a0199c29ade5672b87262c9889cc58f68cbf66ac Mon Sep 17 00:00:00 2001
From: Eric Amodio <eamodio@gmail.com>
Date: Mon, 17 Feb 2025 12:58:15 -0500
Subject: [PATCH 1/2] Fixes #427, #556 adds options to set sourceType

---
 CHANGELOG.md      | 3 +++
 src/analyzer.js   | 2 +-
 src/parseUtils.js | 8 ++++++--
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c7e81fb..ac2ddc5c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,9 @@ _Note: Gaps between patch versions are faulty, broken or test releases._
 
 ## UNRELEASED
 
+* **Improvement**
+  * Parse bundles as ES modules based on stats JSON information
+
 ## 4.10.2
 
 * **Bug Fix**
diff --git a/src/analyzer.js b/src/analyzer.js
index 81eba27b..2d0436b9 100644
--- a/src/analyzer.js
+++ b/src/analyzer.js
@@ -77,7 +77,7 @@ function getViewerData(bundleStats, bundleDir, opts) {
       let bundleInfo;
 
       try {
-        bundleInfo = parseBundle(assetFile);
+        bundleInfo = parseBundle(assetFile, {sourceType: statAsset.info.javascriptModule ? 'module' : 'script'});
       } catch (err) {
         const msg = (err.code === 'ENOENT') ? 'no such file' : err.message;
         logger.warn(`Error parsing bundle asset "${assetFile}": ${msg}`);
diff --git a/src/parseUtils.js b/src/parseUtils.js
index cca8c0ae..bdfd71bb 100644
--- a/src/parseUtils.js
+++ b/src/parseUtils.js
@@ -6,10 +6,14 @@ module.exports = {
   parseBundle
 };
 
-function parseBundle(bundlePath) {
+function parseBundle(bundlePath, opts) {
+  const {
+    sourceType = 'script'
+  } = opts || {};
+
   const content = fs.readFileSync(bundlePath, 'utf8');
   const ast = acorn.parse(content, {
-    sourceType: 'script',
+    sourceType,
     // I believe in a bright future of ECMAScript!
     // Actually, it's set to `2050` to support the latest ECMAScript version that currently exists.
     // Seems like `acorn` supports such weird option value.

From 0d6e7063a0c44c7b1fa1c9dc0b496144944c7c48 Mon Sep 17 00:00:00 2001
From: Vesa Laakso <482561+valscion@users.noreply.github.com>
Date: Tue, 18 Feb 2025 09:40:34 +0200
Subject: [PATCH 2/2] Add links to PR and author in changelog

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac2ddc5c..e34f5d26 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ _Note: Gaps between patch versions are faulty, broken or test releases._
 ## UNRELEASED
 
 * **Improvement**
-  * Parse bundles as ES modules based on stats JSON information
+  * Parse bundles as ES modules based on stats JSON information ([#649](https://github.com/webpack-contrib/webpack-bundle-analyzer/pull/649) by [@eamodio](https://github.com/eamodio))
 
 ## 4.10.2