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__init__.cpython-39.opt-1.pyc
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__init__.cpython-39.pyc
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_ast_gen.cpython-39.opt-1.pyc
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_ast_gen.cpython-39.pyc
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_build_tables.cpython-39.opt-1.pyc
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_build_tables.cpython-39.pyc
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ast_transforms.cpython-39.opt-1.pyc
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ast_transforms.cpython-39.pyc
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c_ast.cpython-39.opt-1.pyc
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c_ast.cpython-39.pyc
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c_generator.cpython-39.opt-1.pyc
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c_generator.cpython-39.pyc
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c_lexer.cpython-39.opt-1.pyc
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c_lexer.cpython-39.pyc
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c_parser.cpython-39.opt-1.pyc
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c_parser.cpython-39.pyc
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lextab.cpython-39.opt-1.pyc
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lextab.cpython-39.pyc
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plyparser.cpython-39.opt-1.pyc
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plyparser.cpython-39.pyc
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yacctab.cpython-39.opt-1.pyc
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yacctab.cpython-39.pyc
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Editing: ast_transforms.cpython-39.pyc
Close
a ��_^@ � @ s d dl mZ dd� Zdd� ZdS )� )�c_astc C s� t | tj�sJ �t | jtj�s"| S t�g | jj�}d}| jjp@g D ]\}t |tjtjf�r||j� |� t ||j� |jd }qB|du r�|j� |� qB|j � |� qB|| _| S )a� The 'case' statements in a 'switch' come out of parsing with one child node, so subsequent statements are just tucked to the parent Compound. Additionally, consecutive (fall-through) case statements come out messy. This is a peculiarity of the C grammar. The following: switch (myvar) { case 10: k = 10; p = k + 1; return 10; case 20: case 30: return 20; default: break; } Creates this tree (pseudo-dump): Switch ID: myvar Compound: Case 10: k = 10 p = k + 1 return 10 Case 20: Case 30: return 20 Default: break The goal of this transform is to fix this mess, turning it into the following: Switch ID: myvar Compound: Case 10: k = 10 p = k + 1 return 10 Case 20: Case 30: return 20 Default: break A fixed AST node is returned. The argument may be modified. N���) � isinstancer ZSwitchZstmtZCompoundZcoordZ block_items�Case�Default�append�_extract_nested_case�stmts)Z switch_nodeZ new_compoundZ last_case�child� r �</usr/lib/python3.9/site-packages/pycparser/ast_transforms.py�fix_switch_cases s 3 r c C s: t | jd tjtjf�r6|�| j�� � t|d |� dS )z� Recursively extract consecutive Case statements that are made nested by the parser and add them to the stmts_list. � r N)r r r r r r �popr )Z case_nodeZ stmts_listr r r r c s r N)� r r r r r r r �<module> s V