[libc-commits] [libc] [libc][hdrgen] Extend guard attribute support for types (PR #191663)

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``````````bash
darker --check --diff -r origin/main...HEAD libc/utils/hdrgen/hdrgen/header.py libc/utils/hdrgen/hdrgen/type.py libc/utils/hdrgen/hdrgen/yaml_to_classes.py libc/utils/hdrgen/tests/test_integration.py
``````````

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``````````diff
--- hdrgen/header.py	2026-04-11 20:20:23.000000 +0000
+++ hdrgen/header.py	2026-04-11 20:58:25.550630 +0000
@@ -313,13 +313,11 @@
         for function in sorted(self.functions):
             # If the last function's name was the same after underscores,
             # elide the blank line between the declarations.
             if last_name == function.name_without_underscores():
                 content.pop()
-            current_guard = self.__emit_guard(
-                content, current_guard, function.guard
-            )
+            current_guard = self.__emit_guard(content, current_guard, function.guard)
             content.append(str(function) + " __NOEXCEPT;")
             content.append("")
             last_name = function.name_without_underscores()
         self.__emit_guard(content, current_guard, None)
 
--- hdrgen/yaml_to_classes.py	2026-04-11 20:20:23.000000 +0000
+++ hdrgen/yaml_to_classes.py	2026-04-11 20:58:25.637520 +0000
@@ -55,12 +55,11 @@
         type_name = type_data["type_name"]
         type_guard = type_data.get("guard")
         # If a type has a guard, the macro it references must exist in
         # the same yaml file with a macro_header attribute.
         if type_guard is not None and not any(
-            macro_data["macro_name"] == type_guard
-            and "macro_header" in macro_data
+            macro_data["macro_name"] == type_guard and "macro_header" in macro_data
             for macro_data in yaml_data.get("macros", [])
         ):
             raise ValueError(
                 f"Type '{type_name}' has guard '{type_guard}' but no macro with "
                 f"macro_header '{type_guard}' was found in this file."

``````````

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https://github.com/llvm/llvm-project/pull/191663