From 7838acf484f7cb64b7723f2a1dd2fe00f53b77fc Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Fri, 23 Jan 2026 19:41:12 +0900
Subject: fix: skip removed tokens from macro arguments

---
 src/preprocess.c         |  4 +++-
 tests/macro_operators.sh | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/preprocess.c b/src/preprocess.c
index 70a7d13..5ccf698 100644
--- a/src/preprocess.c
+++ b/src/preprocess.c
@@ -526,7 +526,9 @@ static MacroArgArray* pp_parse_macro_arguments(Preprocessor* pp, bool skip_newli
             }
 
             tok = next_pp_token(pp);
-            *tokens_push_new(&arg->tokens) = *tok;
+            if (tok->kind != TokenKind_removed) {
+                *tokens_push_new(&arg->tokens) = *tok;
+            }
 
             skip_whitespaces_or_newlines(pp, skip_newline);
         }
diff --git a/tests/macro_operators.sh b/tests/macro_operators.sh
index 57e8564..2954d53 100644
--- a/tests/macro_operators.sh
+++ b/tests/macro_operators.sh
@@ -122,3 +122,13 @@ int main() {
     ASSERT_EQ(12, BAZ);
 }
 EOF
+
+cat <<'EOF' > expected
+foo
+EOF
+
+test_cpp <<'EOF'
+#define CONCAT(x, y) x ## y
+#define CONCAT2(name, r) CONCAT(name, r)
+CONCAT2(foo,)
+EOF
-- 
cgit v1.3-1-g0d28