From 3e7147bb740afb5c78944d2ef721af9bf5ddbb95 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 10 Aug 2025 19:31:52 +0900
Subject: feat: show filename and line number in parsing phase

---
 parse.c      | 3 ++-
 tests/059.sh | 4 ++--
 tokenize.c   | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/parse.c b/parse.c
index f8ad4f1..d55d599 100644
--- a/parse.c
+++ b/parse.c
@@ -79,7 +79,8 @@ Token* expect(Parser* p, TokenKind expected) {
     if (t->kind == expected) {
         return t;
     }
-    fatal_error("expected '%s', but got '%s'", token_kind_stringify(expected), token_stringify(t));
+    fatal_error("%s:%d: expected '%s', but got '%s'", t->loc.filename, t->loc.line, token_kind_stringify(expected),
+                token_stringify(t));
 }
 
 int find_lvar(Parser* p, const String* name) {
diff --git a/tests/059.sh b/tests/059.sh
index 18e9bd7..80a6e10 100644
--- a/tests/059.sh
+++ b/tests/059.sh
@@ -1,7 +1,7 @@
 set -e
 
 cat <<'EOF' > expected
-expected '{', but got '}'
+main.c:1: expected '{', but got '}'
 EOF
 
 bash ../../test_compile_error.sh <<'EOF'
@@ -9,7 +9,7 @@ int main() }
 EOF
 
 cat <<'EOF' > expected
-expected '{', but got '123 (<integer>)'
+main.c:1: expected '{', but got '123 (<integer>)'
 EOF
 
 bash ../../test_compile_error.sh <<'EOF'
diff --git a/tokenize.c b/tokenize.c
index ff66525..e6c61c0 100644
--- a/tokenize.c
+++ b/tokenize.c
@@ -19,6 +19,7 @@ void tokenize_all(Lexer* l) {
     while (l->src[l->pos].kind != TokenKind_eof) {
         Token* pp_tok = l->src + l->pos;
         Token* tok = l->tokens + l->n_tokens;
+        tok->loc = pp_tok->loc;
         TokenKind k = pp_tok->kind;
         ++l->pos;
         if (k == TokenKind_character_constant) {
-- 
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