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Current File : /opt/alt/python38/lib/python3.8/site-packages/pycparser/__pycache__/ast_transforms.cpython-38.pyc
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ӗ_�
�@s ddlmZdd�Zdd�ZdS)�)�c_astcCs�t|tj�st�t|jtj�s"|St�g|jj�}d}|jjD]\}t|tjtj	f�rx|j�
|�t||j�|jd}q>|dkr�|j�
|�q>|j�
|�q>||_|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 it 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���)
�
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s3rcCs:t|jdtjtjf�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.
    �rN)rrrrrr
�popr)Z	case_nodeZ
stmts_listrrrrbsrN)�rrrrrrr�<module>
sU

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