From d937fd56e378d34a7531f5bc0eef597655904643 Mon Sep 17 00:00:00 2001
From: Kris Kowal <kris@agoric.com>
Date: Fri, 25 Oct 2024 20:16:07 -0700
Subject: [PATCH] fixup module-source

---
 packages/module-source/src/transform-source.js      | 5 +++--
 packages/module-source/test/module-source.test.js   | 3 ++-
 packages/module-source/test/preserve-format.test.js | 2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/module-source/src/transform-source.js b/packages/module-source/src/transform-source.js
index bdbcdae300..a45b65b882 100644
--- a/packages/module-source/src/transform-source.js
+++ b/packages/module-source/src/transform-source.js
@@ -29,7 +29,7 @@ export const makeTransformSource = (makeModulePlugins, babel = null) => {
     const ast = parseBabel(source, {
       sourceType,
       tokens: true,
-      createParenthesizedExpression: true,
+      createParenthesizedExpressions: true,
     });
 
     traverseBabel(ast, visitorFromPlugin(analyzePlugin));
@@ -44,8 +44,9 @@ export const makeTransformSource = (makeModulePlugins, babel = null) => {
           sourceFileName: sourceMapUrl,
           sourceMaps,
           inputSourceMap: sourceMap,
-          retainLines: true,
+          experimental_preserveFormat: true,
           preserveFormat: true,
+          retainLines: true,
           verbatim: true,
         },
         source,
diff --git a/packages/module-source/test/module-source.test.js b/packages/module-source/test/module-source.test.js
index 0f8a1472cd..bc1dd6817b 100644
--- a/packages/module-source/test/module-source.test.js
+++ b/packages/module-source/test/module-source.test.js
@@ -70,7 +70,8 @@ test('export default', t => {
 function initialize(t, source, options = {}) {
   const { endowments, imports = new Map() } = options;
   const record = new ModuleSource(source);
-  // t.log(record.__syncModuleProgram__);
+  t.log(source);
+  t.log(record.__syncModuleProgram__);
   const liveUpdaters = {};
   const onceUpdaters = {};
   const namespace = {};
diff --git a/packages/module-source/test/preserve-format.test.js b/packages/module-source/test/preserve-format.test.js
index d4d5d4c128..35cbd5ed56 100644
--- a/packages/module-source/test/preserve-format.test.js
+++ b/packages/module-source/test/preserve-format.test.js
@@ -2,7 +2,7 @@ import url from 'url';
 import fs from 'fs';
 import test from 'ava';
 import { ModuleSource } from '../src/module-source.js';
-import './lockdown.js';
+import './_lockdown.js';
 
 function readFixture(filename) {
   return fs.readFileSync(