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Deep reentrancy must not over-decref old_mro.
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z3MroTest.test_reent_set_bases_on_base.<locals>.M.mroN)ry rz r{ r� r7 )r� r2 r7 r8 r< � s r< c @ s e Zd ZdS )z/MroTest.test_reent_set_bases_on_base.<locals>.AN)ry rz r{ r7 r7 r7 r8 r� � s r� )r� c @ s e Zd ZdS )z/MroTest.test_reent_set_bases_on_base.<locals>.BN)ry rz r{ r7 r7 r7 r8 r� � s r� N)r� rB )r2 r< r� r7 )r� r2 r8 � test_reent_set_bases_on_base� s z$MroTest.test_reent_set_bases_on_basec sJ G � fdd�dt �}G dd� d|d�}G dd� d|�}G dd � d |�}d
S ) zU
Similar to test_reent_set_bases_on_base, but may crash differently.
c s e Zd Z� fdd�ZdS )z6MroTest.test_reent_set_bases_on_direct_base.<locals>.Mc s4 | j d }|tk r*� jd�r*| j f 7 _ tj| �S )Nr re )rB r� r� r? r� )r� rv )r2 r7 r8 r� � s
z:MroTest.test_reent_set_bases_on_direct_base.<locals>.M.mroN)ry rz r{ r� r7 )r2 r7 r8 r< � s r< c @ s e Zd ZdS )z6MroTest.test_reent_set_bases_on_direct_base.<locals>.AN)ry rz r{ r7 r7 r7 r8 r� � s r� )r� c @ s e Zd ZdS )z6MroTest.test_reent_set_bases_on_direct_base.<locals>.BN)ry rz r{ r7 r7 r7 r8 r� � s r� c @ s e Zd ZdS )z6MroTest.test_reent_set_bases_on_direct_base.<locals>.CN)ry rz r{ r7 r7 r7 r8 r| � s r| N)r� )r2 r< r� r� r| r7 )r2 r8 �#test_reent_set_bases_on_direct_base� s z+MroTest.test_reent_set_bases_on_direct_basec
sx G � ��fdd�dt �}G dd� d|d�}G dd� d|�� G dd � d |��d
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type_set_bases must check for an inheritance cycle not only through
MRO of the type, which may be not yet updated in case of reentrance,
but also through tp_base chain, which is assigned before diving into
inner calls to mro().
Otherwise, the following snippet can loop forever:
do {
// ...
type = type->tp_base;
} while (type != NULL);
Functions that rely on tp_base (like solid_base and PyType_IsSubtype)
would not be happy in that case, causing a stack overflow.
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z9MroTest.test_reent_set_bases_tp_base_cycle.<locals>.M.mroN)ry rz r{ r� r7 )r� r� r2 r7 r8 r< � s r< c @ s e Zd ZdS )z5MroTest.test_reent_set_bases_tp_base_cycle.<locals>.AN)ry rz r{ r7 r7 r7 r8 r� � s r� )r� c @ s e Zd ZdS )z6MroTest.test_reent_set_bases_tp_base_cycle.<locals>.B1N)ry rz r{ r7 r7 r7 r8 r� � s r� c @ s e Zd ZdS )z6MroTest.test_reent_set_bases_tp_base_cycle.<locals>.B2N)ry rz r{ r7 r7 r7 r8 r� � s r� TN)r� r� r r rB )r2 r< r� r7 )r� r� r2 r8 �"test_reent_set_bases_tp_base_cycle� s z*MroTest.test_reent_set_bases_tp_base_cyclec s� G � ��fdd�dt �}G dd� d|d�}G dd� d|�}G dd � d |�� G d
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type_set_bases must check for reentrancy upon finishing its job
by updating tp_subclasses of old/new bases of the type.
Otherwise, an implicit inheritance cycle through tp_subclasses
can break functions that recurse on elements of that field
(like recurse_down_subclasses and mro_hierarchy) eventually
leading to a stack overflow.
c s e Zd Z� ��fdd�ZdS )z;MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.Mc s( �j r | jdkr d�_ � f�_tj| �S )Nr| F)r� ry rB r? r� )r� )r� r| r2 r7 r8 r� � s z?MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.M.mroN)ry rz r{ r� r7 )r� r| r2 r7 r8 r< � s r< c @ s e Zd ZdS )z;MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.AN)ry rz r{ r7 r7 r7 r8 r� � s r� )r� c @ s e Zd ZdS )z<MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.B1N)ry rz r{ r7 r7 r7 r8 r� � s r� c @ s e Zd ZdS )z<MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.B2N)ry rz r{ r7 r7 r7 r8 r� s r� c @ s e Zd ZdS )z;MroTest.test_tp_subclasses_cycle_in_update_slots.<locals>.CN)ry rz r{ r7 r7 r7 r8 r| s r| TN)r� r� rB r= r� )r2 r< r� r� r7 )r� r| r2 r8 �(test_tp_subclasses_cycle_in_update_slots� s z0MroTest.test_tp_subclasses_cycle_in_update_slotsc s� G dd� dt ��G � ���fdd�dt�}G dd� d|d�}G dd � d |�}G d
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The same as test_tp_subclasses_cycle_in_update_slots, but tests
a code path executed on error (goto bail).
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Extending an unitialized type with type->tp_mro == NULL must
throw a reasonable TypeError exception, instead of failing
with PyErr_BadInternalCall.
c s e Zd Z� fdd�ZdS )z)MroTest.test_incomplete_extend.<locals>.Mc sD | j d kr:| jdkr:� jt�� G dd� d| �}W d Q R X tj| �S )Nr� c @ s e Zd ZdS )z8MroTest.test_incomplete_extend.<locals>.M.mro.<locals>.XN)ry rz r{ r7 r7 r7 r8 r� = s )r ry r r r? r� )r� r� )r2 r7 r8 r� : s z-MroTest.test_incomplete_extend.<locals>.M.mroN)ry rz r{ r� r7 )r2 r7 r8 r< 9 s r< c @ s e Zd ZdS )z)MroTest.test_incomplete_extend.<locals>.AN)ry rz r{ r7 r7 r7 r8 r� B s r� )r� N)r� )r2 r< r� r7 )r2 r8 �test_incomplete_extend3 s z MroTest.test_incomplete_extendc s* G � fdd�dt �}G dd� d|d�}dS )z�
Attrubute lookup on a super object must be aware that
its target type can be uninitialized (type->tp_mro == NULL).
c s e Zd Z� �fdd�Z� ZS )z(MroTest.test_incomplete_super.<locals>.Mc
s6 | j d kr,�jt�� t| | �j W d Q R X tj| �S )N)r r r> r� Zxxxr? r� )r� )r� r2 r7 r8 r� K s
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r Z run_unittestr� r r� rx r� r� r� r� r7 r7 r7 r8 � test_mainV s r� �__main__) r� r� rd r� r� r� r r r* r� r r� r r� r r+ r r� rx r� r� r� r� r? r� r� r� ry r7 r7 r7 r8 �<module> s~ t b< 0 U