From b7eb6e2abd86f6fea7a6db9a7698e06fd5a55ef4 Mon Sep 17 00:00:00 2001
From: BobTheBuidler <70677534+BobTheBuidler@users.noreply.github.com>
Date: Sun, 16 Nov 2025 18:47:06 -0400
Subject: [PATCH 1/2] feat: validate mypyc attrs

---
 mypyc/irbuild/util.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mypyc/irbuild/util.py b/mypyc/irbuild/util.py
index 3028e940f7f9..b7610fcf2738 100644
--- a/mypyc/irbuild/util.py
+++ b/mypyc/irbuild/util.py
@@ -137,6 +137,12 @@ def get_mypyc_attrs(
     lines: dict[MypycAttr, int] = {}
 
     def set_mypyc_attr(key: str, value: Any, line: int) -> None:
+        if (
+            (key == "native_class" and value is False and attrs.get("allow_interpreted_subclasses") is True)
+            or (key == "allow_interpreted_subclasses" and value is True and attrs.get("native_class") is False)
+        ):
+            errors.error("'allow_interpreted_subclasses' cannot be True if 'native_class' is False"
+        
         if key in MYPYC_ATTRS:
             key = cast(MypycAttr, key)
             attrs[key] = value

From f3d98028adc1667b08603f8d89f3790580e915a4 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Sun, 16 Nov 2025 22:50:44 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 mypyc/irbuild/util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mypyc/irbuild/util.py b/mypyc/irbuild/util.py
index b7610fcf2738..c2ba8f04b808 100644
--- a/mypyc/irbuild/util.py
+++ b/mypyc/irbuild/util.py
@@ -142,7 +142,7 @@ def set_mypyc_attr(key: str, value: Any, line: int) -> None:
             or (key == "allow_interpreted_subclasses" and value is True and attrs.get("native_class") is False)
         ):
             errors.error("'allow_interpreted_subclasses' cannot be True if 'native_class' is False"
-        
+
         if key in MYPYC_ATTRS:
             key = cast(MypycAttr, key)
             attrs[key] = value