<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/65112>65112</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang/bindings/python] Macro-expanded CALL_EXPR arguments have incorrect spelling
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          dmcardle
      </td>
    </tr>
</table>

<pre>
    Hi, folks! I believe I'm seeing an incorrect spelling for arguments when a CALL_EXPR is generated by macro expansion.

Here's a Python test that shows what I'm talking about. This test fails with the following commands on the main branch (34e2f4f2e28a464b127d878979efbc87bc148db5).

I'm happy to set up a Phabricator account and upload a PR if that would be helpful.

```diff
diff --git a/clang/bindings/python/tests/cindex/test_cursor.py b/clang/bindings/python/tests/cindex/test_cursor.py
index 84cd81394184..30cf0f0c30fb 100644
--- a/clang/bindings/python/tests/cindex/test_cursor.py
+++ b/clang/bindings/python/tests/cindex/test_cursor.py
@@ -631,6 +631,30 @@ class TestCursor(unittest.TestCase):
 self.assertEqual(arguments[0].spelling, "i")
 self.assertEqual(arguments[1].spelling, "j")

+    def test_get_arguments_of_macro_expanded_call(self):
+        tu = get_tu(
+            """
+#define CONST_FOO 0
+#define CALL_MAGIC(name) magic(CONST_##name)
+void magic(int register_offset);
+void entry_point(void) {
+ CALL_MAGIC(FOO);
+}
+"""
+        )
+
+        cursors = get_cursors(tu, "magic")
+        [magic_decl, magic_call, magic_unexposed, magic_decl_ref] = cursors
+ self.assertEqual(magic_decl.kind, CursorKind.FUNCTION_DECL)
+ self.assertEqual(magic_call.kind, CursorKind.CALL_EXPR)
+ self.assertEqual(magic_unexposed.kind, CursorKind.UNEXPOSED_EXPR)
+ self.assertEqual(magic_decl_ref.kind, CursorKind.DECL_REF_EXPR)
+
+ # Get arguments from the CALL_EXPR node.
+        [arg] = list(magic_call.get_arguments())
+        tokens = [t.spelling for t in arg.get_tokens()]
+        self.assertEqual(tokens, ["CONST_FOO"])
+
     def test_get_num_template_arguments(self):
 tu = get_tu(kTemplateArgTest, lang="cpp")
         foos = get_cursors(tu, "foo")
```


Configuration:
```bash
cmake -S llvm -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DLLVM_ENABLE_PROJECTS=clang
```

Output:
```console
$ ninja -C build check-clang-python
ninja: Entering directory `build'
[12/12] cd /home/dan/REPOS/llvm-project/clang/bindings/python && /nix/store/p6nyqsw5qbg114gprcj4ci8j4nx9nhnb-cmake-3....lvm-project/build/lib /nix/store/2c7sgx69p6mmp76cvmi5j6c72dj76jj8-python3-3.10.12/bin/python3.10 -m unittest discover
FAILED: tools/clang/bindings/python/tests/CMakeFiles/check-clang-python /home/dan/REPOS/llvm-project/build/tools/clang/bindings/python/tests/CMakeFiles/check-clang-python
cd /home/dan/REPOS/llvm-project/clang/bindings/python && /nix/store/p6nyqsw5qbg114gprcj4ci8j4nx9nhnb-cmake-3.26.4/bin/cmake -E env CLANG_NO_DEFAULT_CONFIG=1 CLANG_LIBRARY_PATH=/home/dan/REPOS/llvm-project/build/lib /nix/store/2c7sgx69p6mmp76cvmi5j6c72dj76jj8-python3-3.10.12/bin/python3.10 -m unittest discover
........................F.........................................................................................................
======================================================================
FAIL: test_get_arguments_of_macro_expanded_call (tests.cindex.test_cursor.TestCursor)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/dan/REPOS/llvm-project/clang/bindings/python/tests/cindex/test_cursor.py", line 656, in test_get_arguments_of_macro_expanded_call
 self.assertEqual(tokens, ["CONST_FOO"])
AssertionError: Lists differ: ['0', '#', 'define', 'CALL_MAGIC', '(', 'na[182 chars] ')'] != ['CONST_FOO']

First differing element 0:
'0'
'CONST_FOO'

First list contains 29 additional elements.
First extra element 1:
'#'

+ ['CONST_FOO']
- ['0',
-  '#',
-  'define',
-  'CALL_MAGIC',
-  '(',
- 'name',
-  ')',
-  'magic',
-  '(',
-  'CONST_',
-  '##',
- 'name',
-  ')',
-  'void',
-  'magic',
-  '(',
-  'int',
- 'register_offset',
-  ')',
-  ';',
-  'void',
- 'entry_point',
-  '(',
-  'void',
-  ')',
-  '{',
- 'CALL_MAGIC',
-  '(',
-  'FOO',
- ')']

----------------------------------------------------------------------
Ran 130 tests in 0.375s

FAILED (failures=1)
ninja: build stopped: subcommand failed.
```

</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzcWFtvo7r2_zTuy1IQGALkoQ-5Mbv_nWmqTuevvZ-QMSa4BZuNTS_f_siGXGjSOR3NSOfoIBTFt59_a9nrBlGK7wRj12i6QNPVFel0KdvrvKakzSt2lcn87foPjvASClk9KYQ9uIGMVZw9M7hBOKpBMcbFDogALqhsW0Y1qIZVlektZAuk3XU1E1rBS8kEEFjON5t0_dfdPXAFOyZYSzTLIXuDmtBWAnttiFBcCge5K-TO-98_WMsQjhQQuHvTpRSgmdKgS6JBlfLFwBM9kNKkerKsMtlpBx5KrvrpBeGVgheuS9AlM1JV8sXMpLKuicgVGOCSQU24gKwlgpaAcOwHDBdBgRmOSRAGmYejPI7iWTRjRUbjKKNeEOfZFOHZiHVPpyRN8wZagmIausaIUJKs5ZRooyBKZSc0EJFD11SS5GbCPfCil-5FdlUOGYOSVU3RVaMNUOj2b86Lou8y_2Ay2XENBOGEVkTsEE4yLnIudgrhpLEKRDgxOjEdlIucvQ4dKe1aJVuneYPs19b3fOwYxAHNY8-fBV4cOI7v0sItXOq7RQae64ZB0E-eTCa_ynpQDF707-8RAgUuClyYhL6H8DIEhBf9X9-FYYxWRCl4YEov7VqE405wbdAc20sUQ3iG_OHoQLGqcIhSrNXrfzpSIRwfjAVNFy6arpy9KRkbRBhzhLHB-BSAdwHg8RTgoCkAgJwV1kbSHdPpASaVRWrNMrVmmbM8paQyO5nNT8UZYMyjO0D-CgyQ7hCOzyaYxxKx7_G8_JwVXDBYbm-_PaTJdgvupVHjQL7Ov9wsEY4FqY1WoSY7ThGO-6UI-wj7w9gB4lny_DCRCw0t23GlWZvKolBMW3EW4-lM6PYtbSQXGuHYdJndUHScNuaTbLfvYFC0OhHivdBHdRx5ng32l1EdtDq0EY6Nfu3BDmLhU5wD9nRhh9Oc0crM71v9Qe5bnWCvjVQsP3aZ6WnLCjRd2a332x7wL1zA40rniQsL1pvDn1zkTvL9dvlws71NV-vlZkT1QyjD8hLUIYx8DuYg3iWs77frv-6239arnwDcK-cSnpEuvV8nZ3BHXIR9-ML0SXgsWlnb2HMMkELmzLl0nKTd7Q-l4kqPlTUyYGN-eHbpVmj5xER_p9B0oZ1R1NbAheFmwfqZA9J0dYZ0QUf7JUuDjTA-WLS5otPVuU7gzAeJrk41q5uKaDaS573nOfM3Tw_Dsnm7M57X0LABwF8hjGnTjLzo_imk_KGFFVKO7GsfeUe-1P4upSj4rmuJ5lIcHeR-QUZU2XfRmjwxmHyDqnquYbKArONVDpMvcMvFI4HJavl1_uc6XXy_2azSh7_v1shfrVjW7WCy2mz-_2u6vp0vNuv07n77f-vlwzfkr_pQ9zHFbaebTp-zolIoWbH9sQQgegrLgRQtGX2aWPTJEDvtVDsN-XNYC81ac39ybrJA2b6BEdYsRjgacKcLDyOceOYSAM0B4aSUxksnOTHB-H59t_2GcGIUMmla-cio_lH8BoRDhE08TgQ3wVtpaRLFpAnF2z_qZfpPtvO8YNe09DGgPH4MxOtMlCKbWN1PfMdxnPFeA-Ok4tk5LKaR2r2Gsyas6yYK6XPNp48hjXD-GIWPj_GgGn_iO57rWFkzLg50TS9MatgnBpBzReUza3v1JPObzXpllKmlrNQnE5flV_LEEl4xu-DsmD6r473cv3Hr4Zb_NxwzDp3gcBiD3a2BiWdYbua3X9LbbbpaJ_Pvm4d0ub1Nbr4gf-UNY5ubxf38_u_0bv7wh_UhP6XP_8A9cj54ko8GfvszmLu_-l97D3ZqrfSz-bKpIa3NOH2V4ZzWGKclw-xQBv2Gp8d6aAllGaFPhkQtlUl7KRMaLLGKKD0KpmDMuc_Of81mP1FamU2WUJmkPpyG5j8XP1GEfFgFfTb7mNtVXIp128rWnOiGK63AlNDMtu36yDUBzGYBka0s9o2-IDm2TyuB44L42BDERMAYAy1Jq2wKZ8Zm5tc2vCEdM2BH0tEx6-rvH2-tzRuWJuKyihlFgXtSjfWk940R2BmSySGBSqEJFwrwDEiec6MXUu2xlXO6gL3qlhy29U63HRT0rsD8gUiTsZL3nSNln3aeKv20_73yx0DxuNOeRX0BZTiMcedQXP1bVDjI-IEs_q-w6IvPX-Fmi9h3BM5q4E9xMQXuJwgiHI0K6E-xvCznZRrR4mzDn7oHpnO4jyOQg02eXuTf6ZXviQDPd623U8btuY4fTdXINm02aLx2QXjVtUyZnOTgvA6Jd5-fKy2bhuWmQ3XZ8D3TfvBkuXOxHrjKr_185s_IFbv2wpkfuGEURlfldZx7RUT8aYhD6nu-l2W0CFw6zYrAz0OcXfFr7GLfjX3XC4LQjZzp1KXYxXnhkayYzSIUuKwmvHJMsHBku7viSnXsOpx6Hr6qSMYqdd37ZsFewA72vvmqvbYBJut2CgWu8UzqiKK5ruzn6o-jznQFX02smOxjxUk9fSy2S_LMLnyxvura6rrUulHGpeEE4WTHddllDpX1EPvOQ6ClbyhY8f4VAAD__67ErMw">