From dc1b87e43ea628791dab48993182ac43cf98c150 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: Thu, 1 Aug 2024 14:16:17 +0900
Subject: [PATCH] fix(es/parser): Fix span for unterminated block comments
 (#9361)

**Related issue:**

 - https://github.com/wooorm/mdxjs-rs/pull/49
---
 .changeset/large-glasses-move.md         | 6 ++++++
 crates/swc_common/src/input.rs           | 8 ++++++++
 crates/swc_ecma_parser/src/lexer/util.rs | 3 ++-
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/large-glasses-move.md

diff --git a/.changeset/large-glasses-move.md b/.changeset/large-glasses-move.md
new file mode 100644
index 000000000000..3ddeff66336d
--- /dev/null
+++ b/.changeset/large-glasses-move.md
@@ -0,0 +1,6 @@
+---
+swc_common: patch
+swc_ecma_parser: patch
+---
+
+fix(es/parser): Fix span for unterminated block comments
diff --git a/crates/swc_common/src/input.rs b/crates/swc_common/src/input.rs
index bc6fb1644935..d42cccbd3e97 100644
--- a/crates/swc_common/src/input.rs
+++ b/crates/swc_common/src/input.rs
@@ -49,6 +49,14 @@ impl<'a> StringInput<'a> {
             self.reset_to(self.last_pos + BytePos(n as u32));
         }
     }
+
+    pub fn start_pos(&self) -> BytePos {
+        self.orig_start
+    }
+
+    pub fn end_pos(&self) -> BytePos {
+        self.last_pos
+    }
 }
 
 /// Creates an [Input] from [SourceFile]. This is an alias for
diff --git a/crates/swc_ecma_parser/src/lexer/util.rs b/crates/swc_ecma_parser/src/lexer/util.rs
index 578944aa11df..f67c4911ea1b 100644
--- a/crates/swc_ecma_parser/src/lexer/util.rs
+++ b/crates/swc_ecma_parser/src/lexer/util.rs
@@ -290,7 +290,8 @@ impl<'a> Lexer<'a> {
             self.bump();
         }
 
-        self.emit_error(start, SyntaxError::UnterminatedBlockComment)
+        let span = Span::new(start, self.input.end_pos());
+        self.emit_error_span(span, SyntaxError::UnterminatedBlockComment)
     }
 
     #[inline(never)]