From 2dbb764cfc775e5b1fb5ac907e9a56d2d6e2b23d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Wed, 31 Jul 2024 20:22:52 +0900
Subject: [PATCH 1/3] Add a test for
 https://github.com/vercel/next.js/issues/66191

---
 tests/cli_integration_tests.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tests/cli_integration_tests.rs b/tests/cli_integration_tests.rs
index 744ac7ca..28dcda0e 100644
--- a/tests/cli_integration_tests.rs
+++ b/tests/cli_integration_tests.rs
@@ -759,3 +759,26 @@ fn browserslist_environment_from_browserslist_env() -> Result<(), Box<dyn std::e
 
   Ok(())
 }
+
+#[test]
+fn next_66191() -> Result<(), Box<dyn std::error::Error>> {
+  let infile = assert_fs::NamedTempFile::new("test.css")?;
+  infile.write_str(
+    r#"
+      .cb:is(input:checked) {
+        margin: 3rem;
+      }
+    "#,
+  )?;
+  let outfile = assert_fs::NamedTempFile::new("test.out")?;
+  let mut cmd = Command::cargo_bin("lightningcss")?;
+  cmd.arg(infile.path());
+  cmd.arg("--output-file").arg(outfile.path());
+  cmd.assert().success();
+  outfile.assert(predicate::str::contains(indoc! {r#"
+        .cb:is(input:checked) {
+          margin: 3rem;
+      }"#}));
+
+  Ok(())
+}

From b1e60ceb0d71b9d927478b6ea28afa4b1c8aef78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Wed, 31 Jul 2024 20:50:16 +0900
Subject: [PATCH 2/3] Update test

---
 tests/cli_integration_tests.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tests/cli_integration_tests.rs b/tests/cli_integration_tests.rs
index 28dcda0e..c57d26e8 100644
--- a/tests/cli_integration_tests.rs
+++ b/tests/cli_integration_tests.rs
@@ -775,10 +775,7 @@ fn next_66191() -> Result<(), Box<dyn std::error::Error>> {
   cmd.arg(infile.path());
   cmd.arg("--output-file").arg(outfile.path());
   cmd.assert().success();
-  outfile.assert(predicate::str::contains(indoc! {r#"
-        .cb:is(input:checked) {
-          margin: 3rem;
-      }"#}));
+  outfile.assert(predicate::str::contains(indoc! {r#".cb:is(input:checked)"#}));
 
   Ok(())
 }

From 31a7d46a649acacafb115e6853f5752897fd0f93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Wed, 31 Jul 2024 20:50:24 +0900
Subject: [PATCH 3/3] fix

---
 src/selector.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/selector.rs b/src/selector.rs
index 62550198..56df04c8 100644
--- a/src/selector.rs
+++ b/src/selector.rs
@@ -1624,8 +1624,13 @@ where
 
 #[inline]
 fn has_type_selector(selector: &Selector) -> bool {
-  let mut iter = selector.iter_raw_parse_order_from(0);
+  // For input:checked the component vector is
+  // [input, :checked] so we have to check it using matching order.
+  //
+  // This both happens for input:checked and is(input:checked)
+  let mut iter = selector.iter_raw_match_order();
   let first = iter.next();
+
   if is_namespace(first) {
     is_type_selector(iter.next())
   } else {