Cpp: Fix CppClassType is_subclass crashing with types without base classes

40ebcd90 · gsamain · Xavier Thompson · 01568879 · 40ebcd90
Commit 40ebcd90 authored Mar 25, 2019 by gsamain Committed by Xavier Thompson Jun 18, 2020
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Cython/Compiler/PyrexTypes.py Cython/Compiler/PyrexTypes.py +4 -3

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--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -3940,6 +3940,7 @@ class CppClassType(CType):
    def is_subclass(self, other_type):
        if self.same_as_resolved_type(other_type):
            return 1
+        if self.base_classes:
            for base_class in self.base_classes:
                if base_class.is_subclass(other_type):
                    return 1