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File: //opt/alt/python37/lib/python3.7/site-packages/pycparser/__pycache__/ast_transforms.cpython-37.pyc
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��f;�@s0ddlmZdd�Zdd�Zdd�Zdd	�Zd
S)�)�c_astcCs�t|tj�st�t|jtj�s"|St�g|jj�}d}xl|jjpBgD]\}t|tjtj	f�r~|j�
|�t||j�|jd}qD|dkr�|j�
|�qD|j�
|�qDW||_|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���)
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s3rcCs:t|jdtjtjf�r6|�|j���t|d|�dS)z� Recursively extract consecutive Case statements that are made nested
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rH|SXqWd|jkrnd|jkrn|j�d�|jdkr�|j	|_|S)aK Atomic specifiers like _Atomic(type) are unusually structured,
        conferring a qualifier upon the contained type.

        This function fixes a decl with atomic specifiers to have a sane AST
        structure, by removing spurious Typename->TypeDecl pairs and attaching
        the _Atomic qualifier in the right place.
    �_AtomicN)
�_fix_atomic_specifiers_oncerr�TypeDecl�type�AttributeError�qualsrZdeclname�name)�decl�found�typrrr
�fix_atomic_specifiersls



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rZ|dfSXqWt|tj�spt�|j|_d|jjkr�|jj�d�|dfS)z� Performs one 'fix' round of atomic specifiers.
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r�s"

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