From 963b0881f9e027fd9ca6ed7b59a3b1f284bf688e Mon Sep 17 00:00:00 2001
From: CPunisher <1343316114@qq.com>
Date: Mon, 3 Feb 2025 20:28:18 +0800
Subject: [PATCH] fix(es/transforms): Pass `unresolved_mark` to `simplifier`
 instead of `top_level_mark` (#9989)

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/9981
---
 .changeset/fuzzy-kangaroos-help.md | 5 +++++
 .changeset/many-camels-chew.md     | 6 ++++++
 crates/swc/src/config/mod.rs       | 4 ++--
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/fuzzy-kangaroos-help.md
 create mode 100644 .changeset/many-camels-chew.md

diff --git a/.changeset/fuzzy-kangaroos-help.md b/.changeset/fuzzy-kangaroos-help.md
new file mode 100644
index 000000000000..ee7e36df7571
--- /dev/null
+++ b/.changeset/fuzzy-kangaroos-help.md
@@ -0,0 +1,5 @@
+---
+preset_env_base: patch
+---
+
+fix(es/transforms): Pass `unresolved_mark` to `simplifier` instead of `top_level_mark`
diff --git a/.changeset/many-camels-chew.md b/.changeset/many-camels-chew.md
new file mode 100644
index 000000000000..94971acefb79
--- /dev/null
+++ b/.changeset/many-camels-chew.md
@@ -0,0 +1,6 @@
+---
+swc: patch
+swc_core: patch
+---
+
+fix(es/transforms): Pass `unresolved_mark` to `simplifier` instead of `top_level_mark`
diff --git a/crates/swc/src/config/mod.rs b/crates/swc/src/config/mod.rs
index 96303157ebc0..61f2af59e714 100644
--- a/crates/swc/src/config/mod.rs
+++ b/crates/swc/src/config/mod.rs
@@ -470,13 +470,13 @@ impl Options {
                 match opts {
                     SimplifyOption::Bool(allow_simplify) => {
                         if *allow_simplify {
-                            Some(simplifier(top_level_mark, Default::default()))
+                            Some(simplifier(unresolved_mark, Default::default()))
                         } else {
                             None
                         }
                     }
                     SimplifyOption::Json(cfg) => Some(simplifier(
-                        top_level_mark,
+                        unresolved_mark,
                         SimplifyConfig {
                             dce: DceConfig {
                                 preserve_imports_with_side_effects: cfg