[clang] [libclang/python] Ensure all library functions are registered (PR #140015)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Jannick Kremer (DeinAlptraum)

<details>
<summary>Changes</summary>

Add a few library functions that were not previously registered to the `CDLL` object. The current behavior relies on the default `restype` to work.

Add a test to check that all library functions are properly registered. This is not 100% reliable: for a yet unkown reason, `clang_getCursorTLSKind` is not in the list of attributes of the library object, despite working as intended even when not registered.

---
Full diff: https://github.com/llvm/llvm-project/pull/140015.diff


1 Files Affected:

- (added) clang/bindings/python/tests/cindex/test_lib.py (+17) 


``````````diff
diff --git a/clang/bindings/python/tests/cindex/test_lib.py b/clang/bindings/python/tests/cindex/test_lib.py
new file mode 100644
index 0000000000000..f8f892731500b
--- /dev/null
+++ b/clang/bindings/python/tests/cindex/test_lib.py
@@ -0,0 +1,17 @@
+import os
+
+from clang.cindex import Config, conf, FUNCTION_LIST
+
+if "CLANG_LIBRARY_PATH" in os.environ:
+    Config.set_library_path(os.environ["CLANG_LIBRARY_PATH"])
+
+import unittest
+
+
+class TestIndex(unittest.TestCase):
+    def test_functions_registered(self):
+        IGNORED = set(["_FuncPtr", "_name", "_handle"])
+        lib_functions = set(vars(conf.lib).keys())
+        registered_functions = set([item[0] for item in FUNCTION_LIST])
+        unregistered_functions = lib_functions - registered_functions - IGNORED
+        self.assertEqual(unregistered_functions, set())

``````````

</details>


https://github.com/llvm/llvm-project/pull/140015