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o ;j , � @ s� d dl mZ d dlZd dlmZ G dd� d�ZG dd� d�ZdZd Ze d kr_ej � ej � e ��Zej �ed �Zej �ed �Zee�Zeed ��Ze�e� W d � dS 1 sXw Y dS dS )� )�TemplateN)�IOc @ s4 e Zd Zd dd�Zdee ddfdd�Zd d � ZdS ) �ASTCodeGenerator� _c_ast.cfgc C s || _ dd� | �|�D �| _dS )zIInitialize the code generator from a configuration file. c S s g | ] \}}t ||��qS � )�NodeCfg)�.0�name�contentsr r �F/opt/saltstack/salt/lib/python3.10/site-packages/pycparser/_ast_gen.py� <listcomp> s ��z-ASTCodeGenerator.__init__.<locals>.<listcomp>N)� cfg_filename� parse_cfgfile�node_cfg)�selfr r r r �__init__ s �zASTCodeGenerator.__init__�file�returnNc C sD t t�j| jd�}|t7 }| jD ] }||�� d 7 }q|�|� dS )z2Generates the code into file, an open file buffer.)r z N)r �_PROLOGUE_COMMENT� substituter �_PROLOGUE_CODEr �generate_source�write)r r �srcr r r r �generate s zASTCodeGenerator.generatec c s� � t |d��a}|D ]U}|�� }|r|�d�rq |�d�}|�d�}|�d�}|dk s2||ks2||kr=td|� d|� d ���|d |� }||d |� }|rWd d � |�d �D �ng } || fV q W d � d S 1 sjw Y d S )z`Parse the configuration file and yield pairs of (name, contents) for each node. �r�#�:�[�]� zInvalid line in �: � Nc S s g | ]}|� � �qS r )�strip)r �vr r r r ; s z2ASTCodeGenerator.parse_cfgfile.<locals>.<listcomp>�,)�openr# � startswith�find� RuntimeError�split) r �filename�f�lineZcolon_iZ lbracket_iZ rbracket_ir �valZvallistr r r r * s" � �"�z ASTCodeGenerator.parse_cfgfile)r )�__name__� __module__� __qualname__r r �strr r r r r r r s r c @ s@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )r z�Node configuration. name: node name contents: a list of contents - attributes and child nodes See comment at the top of the configuration file for details. c C s~ || _ g | _g | _g | _g | _|D ]+}|�d�}| j�|� |�d�r*| j�|� q|�d�r6| j�|� q| j�|� qd S )N�*z**)r � all_entries�attr�child� seq_child�rstrip�append�endswith)r r r �entryZ clean_entryr r r r G s �zNodeCfg.__init__c C s< | � � }|d| �� 7 }|d| �� 7 }|d| �� 7 }|S )Nr" )� _gen_init� _gen_children� _gen_iter�_gen_attr_names�r r r r r r Y s zNodeCfg.generate_sourcec C s� d| j � d�}| jr&d�| j�}d�dd� | jD ��}|d7 }d|� d�}nd }d }|d |� d �7 }|d |� d�7 }| jdg D ] }|d|� d|� d�7 }q@|S )Nzclass z(Node): �, c s s � | ] }d |� d �V qdS )�'Nr )r �er r r � <genexpr>e s � z$NodeCfg._gen_init.<locals>.<genexpr>z, 'coord', '__weakref__'z(self, z , coord=None)z'coord', '__weakref__'z(self, coord=None)z __slots__ = (z) z def __init__r! Zcoordz self.z = r" )r r4 �join)r r �args�slotsZarglistr r r r r< ` s zNodeCfg._gen_initc C s� d}| j r>|d7 }| jD ]}|d|� d�7 }|d|� d|� d�7 }q | jD ]}|d|� d �7 }|d |� d �7 }q%|d 7 }|S |d 7 }|S )Nz def children(self): z nodelist = [] � if self.� is not None: z nodelist.append(("z", self.z)) z' for i, child in enumerate(self.� or []): z nodelist.append((f"z[{i}]", child)) z return tuple(nodelist) z return () �r4 r6 r7 �r r r6 r7 r r r r= t s �zNodeCfg._gen_childrenc C s~ d}| j r9| jD ]}|d|� d�7 }|d|� d�7 }q| jD ]}|d|� d�7 }|d7 }q | js7| js7|d 7 }|S |d 7 }|S ) Nz def __iter__(self): rH rI z yield self.r" z for child in (self.rJ z yield child z return yield rK rL r r r r> � s �zNodeCfg._gen_iterc C s" dd� dd� | jD �� d }|S )Nz attr_names = (� c s s � | ]}|�d �V qdS )rA Nr )r Znmr r r rD � s � z*NodeCfg._gen_attr_names.<locals>.<genexpr>�))rE r5 r@ r r r r? � s zNodeCfg._gen_attr_namesN) r/ r0 r1 �__doc__r r r< r= r> r? r r r r r ? s r a� #----------------------------------------------------------------- # ** ATTENTION ** # This code was automatically generated from _c_ast.cfg # # Do not modify it directly. Modify the configuration file and # run the generator again. # ** ** *** ** ** # # pycparser: c_ast.py # # AST Node classes. # # Eli Bendersky [https://eli.thegreenplace.net/] # License: BSD #----------------------------------------------------------------- ae import sys from typing import Any, ClassVar, IO, Optional def _repr(obj): """ Get the representation of an object, with dedicated pprint-like format for lists. """ if isinstance(obj, list): return '[' + (',\n '.join((_repr(e).replace('\n', '\n ') for e in obj))) + '\n]' else: return repr(obj) class Node: __slots__ = () """ Abstract base class for AST nodes. """ attr_names: ClassVar[tuple[str, ...]] = () coord: Optional[Any] def __repr__(self): """ Generates a python representation of the current node """ result = self.__class__.__name__ + '(' indent = '' separator = '' for name in self.__slots__[:-2]: result += separator result += indent result += name + '=' + (_repr(getattr(self, name)).replace('\n', '\n ' + (' ' * (len(name) + len(self.__class__.__name__))))) separator = ',' indent = '\n ' + (' ' * len(self.__class__.__name__)) result += indent + ')' return result def children(self): """ A sequence of all children that are Nodes """ pass def show( self, buf: IO[str] = sys.stdout, offset: int = 0, attrnames: bool = False, showemptyattrs: bool = True, nodenames: bool = False, showcoord: bool = False, _my_node_name: Optional[str] = None, ): """ Pretty print the Node and all its attributes and children (recursively) to a buffer. buf: Open IO buffer into which the Node is printed. offset: Initial offset (amount of leading spaces) attrnames: True if you want to see the attribute names in name=value pairs. False to only see the values. showemptyattrs: False if you want to suppress printing empty attributes. nodenames: True if you want to see the actual node names within their parents. showcoord: Do you want the coordinates of each Node to be displayed. """ lead = ' ' * offset if nodenames and _my_node_name is not None: buf.write(lead + self.__class__.__name__+ ' <' + _my_node_name + '>: ') else: buf.write(lead + self.__class__.__name__+ ': ') if self.attr_names: def is_empty(v): v is None or (hasattr(v, '__len__') and len(v) == 0) nvlist = [(n, getattr(self,n)) for n in self.attr_names \ if showemptyattrs or not is_empty(getattr(self,n))] if attrnames: attrstr = ', '.join(f'{name}={value}' for name, value in nvlist) else: attrstr = ', '.join(f'{value}' for _, value in nvlist) buf.write(attrstr) if showcoord: buf.write(f' (at {self.coord})') buf.write('\n') for (child_name, child) in self.children(): child.show( buf, offset=offset + 2, attrnames=attrnames, showemptyattrs=showemptyattrs, nodenames=nodenames, showcoord=showcoord, _my_node_name=child_name) class NodeVisitor: """ A base NodeVisitor class for visiting c_ast nodes. Subclass it and define your own visit_XXX methods, where XXX is the class name you want to visit with these methods. For example: class ConstantVisitor(NodeVisitor): def __init__(self): self.values = [] def visit_Constant(self, node): self.values.append(node.value) Creates a list of values of all the constant nodes encountered below the given node. To use it: cv = ConstantVisitor() cv.visit(node) Notes: * generic_visit() will be called for AST nodes for which no visit_XXX method was defined. * The children of nodes for which a visit_XXX was defined will not be visited - if you need this, call generic_visit() on the node. You can use: NodeVisitor.generic_visit(self, node) * Modeled after Python's own AST visiting facilities (the ast module of Python 3.0) """ _method_cache = None def visit(self, node: Node): """ Visit a node. """ if self._method_cache is None: self._method_cache = {} visitor = self._method_cache.get(node.__class__.__name__, None) if visitor is None: method = 'visit_' + node.__class__.__name__ visitor = getattr(self, method, self.generic_visit) self._method_cache[node.__class__.__name__] = visitor return visitor(node) def generic_visit(self, node: Node): """ Called if no explicit visitor function exists for a node. Implements preorder visiting of the node. """ for _, c in node.children(): self.visit(c) �__main__r zc_ast.py�w)�stringr �os�typingr r r r r r/ �path�dirname�abspath�__file__�base_dirrE Zcfg_pathZout_pathZast_genr& �outr r r r r �<module> s" *c + "��
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