From 58700f2bec696d0d2b2466ab6b4641f0a7017808 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Donny/=EA=B0=95=EB=8F=99=EC=9C=A4?= <kdy1997.dev@gmail.com>
Date: Wed, 21 Dec 2022 18:34:40 +0900
Subject: [PATCH] fix(es): Preserve license comments by default (#6703)

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6677.
---
 crates/swc/src/config/mod.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/crates/swc/src/config/mod.rs b/crates/swc/src/config/mod.rs
index 60a8036f6f82..f48ff94f6386 100644
--- a/crates/swc/src/config/mod.rs
+++ b/crates/swc/src/config/mod.rs
@@ -943,7 +943,7 @@ pub struct JsMinifyFormatOptions {
     #[serde(default)]
     pub braces: bool,
 
-    #[serde(default)]
+    #[serde(default = "default_comments")]
     pub comments: BoolOrDataConfig<JsMinifyCommentOption>,
 
     /// Not implemented yet.
@@ -1015,6 +1015,10 @@ pub struct JsMinifyFormatOptions {
     pub wrap_func_args: bool,
 }
 
+fn default_comments() -> BoolOrDataConfig<JsMinifyCommentOption> {
+    BoolOrDataConfig::from_obj(JsMinifyCommentOption::PreserveSomeComments)
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum JsMinifyCommentOption {
     #[serde(rename = "some")]