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symtable.cpython-310.pyc
o ���h�' � @ sX d Z ddlZddlmZmZmZmZmZmZmZm Z m Z m Z m Z m Z mZmZmZ ddlZg d�Zdd� ZG dd� d�Ze� ZG d d � d �ZG d d � d e�ZG d d� de�ZG dd� d�Zedkr�ddlZddl Z e e j d �� Z e � � Z!W d � n1 s~w Y ee!ej"�#e j d �d d�Z$e$�%� D ]Z&e$�'e&�Z(e)e(e(�*� e(�+� � q�dS dS )z2Interface to the compiler's internal symbol tables� N)�USE� DEF_GLOBAL� DEF_NONLOCAL� DEF_LOCAL� DEF_PARAM� DEF_IMPORT� DEF_BOUND� DEF_ANNOT� SCOPE_OFF� SCOPE_MASK�FREE�LOCAL�GLOBAL_IMPLICIT�GLOBAL_EXPLICIT�CELL)�symtable� SymbolTable�Class�Function�Symbolc C s t �| ||�}t||�S )z� Return the toplevel *SymbolTable* for the source code. *filename* is the name of the file with the code and *compile_type* is the *compile()* mode argument. )� _symtabler �_newSymbolTable)�code�filenameZ compile_type�top� r �//opt/alt/python310/lib64/python3.10/symtable.pyr s r c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�SymbolTableFactoryc C s t �� | _d S �N)�weakrefZWeakValueDictionary�_SymbolTableFactory__memo��selfr r r �__init__ s zSymbolTableFactory.__init__c C s6 |j tjkr t||�S |j tjkrt||�S t||�S r )�typer � TYPE_FUNCTIONr � TYPE_CLASSr r )r" �tabler r r r �new s zSymbolTableFactory.newc C s8 ||f}| j �|d �}|d u r| �||� }| j |< |S r )r �getr( )r" r' r �key�objr r r �__call__ s zSymbolTableFactory.__call__N)�__name__� __module__� __qualname__r# r( r, r r r r r s r c @ s| e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd � Zd S ) r c C s || _ || _i | _d S r )�_table� _filename�_symbols)r" Z raw_tabler r r r r# , s zSymbolTable.__init__c C sJ | j tkrd}nd| j j }| jjdkrd�|| j�S d�|| jj| j�S )N� z%s r z <{0}SymbolTable for module {1}>z <{0}SymbolTable for {1} in {2}>)� __class__r r- r0 �name�formatr1 )r" �kindr r r �__repr__1 s �zSymbolTable.__repr__c C sX | j jtjkr dS | j jtjkrdS | j jtjkrdS | j jdv s*J d�| j j���dS )zwReturn the type of the symbol table. The values retuned are 'class', 'module' and 'function'. �moduleZfunction�class)� � � zunexpected type: {0}N)r0 r$ r Z TYPE_MODULEr% r& r6 r! r r r �get_type> s �zSymbolTable.get_typec C � | j jS )z,Return an identifier for the table. )r0 �idr! r r r �get_idM s zSymbolTable.get_idc C r? )z�Return the table's name. This corresponds to the name of the class, function or 'top' if the table is for a class, function or global respectively. )r0 r5 r! r r r �get_nameR s zSymbolTable.get_namec C r? )zPReturn the number of the first line in the block for the table. )r0 �linenor! r r r � get_lineno[ s zSymbolTable.get_linenoc C s t | jjtjk�S )zJReturn *True* if the locals in the table are optimizable. )�boolr0 r$ r r% r! r r r � is_optimizeda s zSymbolTable.is_optimizedc C � t | jj�S )zAReturn *True* if the block is a nested class or function.)rE r0 �nestedr! r r r � is_nestedg � zSymbolTable.is_nestedc C rG )z:Return *True* if the block has nested namespaces. )rE r0 �childrenr! r r r � has_childrenl rJ zSymbolTable.has_childrenc C s | j j�� S )zKReturn a view object containing the names of symbols in the table. )r0 �symbols�keysr! r r r �get_identifiersq rJ zSymbolTable.get_identifiersc C sT | j �|�}|du r(| jj| }| �|�}| jjdk}t||||d� }| j |< |S )zLLookup a *name* in the table. Returns a *Symbol* instance. Nr �� module_scope)r2 r) r0 rM � _SymbolTable__check_childrenr5 r )r" r5 Zsym�flags� namespacesrQ r r r �lookupv s �zSymbolTable.lookupc s � fdd�� � � D �S )zLReturn a list of *Symbol* instances for names in the table. c s g | ]}� � |��qS r )rU ��.0�identr! r r � <listcomp>� s z+SymbolTable.get_symbols.<locals>.<listcomp>)rO r! r r! r � get_symbols� s zSymbolTable.get_symbolsc s � �fdd��j jD �S )Nc s" g | ] }|j � krt|�j��qS r )r5 r r1 �rW �st�r5 r" r r rY � s �z0SymbolTable.__check_children.<locals>.<listcomp>�r0 rK )r" r5 r r] r Z__check_children� s �z SymbolTable.__check_childrenc s � fdd�� j jD �S )z3Return a list of the nested symbol tables. c s g | ]}t |� j��qS r )r r1 r[ r! r r rY � s �z,SymbolTable.get_children.<locals>.<listcomp>r^ r! r r! r � get_children� s �zSymbolTable.get_childrenN)r- r. r/ r# r8 r> rA rB rD rF rI rL rO rU rZ rR r_ r r r r r * s r c @ sP e Zd ZdZdZdZdZdZdd� Zdd� Z dd� Z dd � Z d d � Z d d � Z dS )r Nc s t � �fdd�� �� D ��S )Nc 3 s$ � | ] }�� j j| �r|V qd S r )r0 rM rV �r" Z test_funcr r � <genexpr>� s � �z-Function.__idents_matching.<locals>.<genexpr>)�tuplerO r` r r` r Z__idents_matching� s zFunction.__idents_matchingc C � | j du r | �dd� �| _ | j S )z6Return a tuple of parameters to the function. Nc S � | t @ S r )r ��xr r r �<lambda>� � z)Function.get_parameters.<locals>.<lambda>)�_Function__params�_Function__idents_matchingr! r r r �get_parameters� � zFunction.get_parametersc �0 | j du rttf� � fdd�}| �|�| _ | j S )z2Return a tuple of locals in the function. Nc � | t ? t@ � v S r �r r re �Zlocsr r rg � � z%Function.get_locals.<locals>.<lambda>)�_Function__localsr r rj �r" �testr rp r � get_locals� � zFunction.get_localsc rm )z3Return a tuple of globals in the function. Nc rn r ro re �Zglobr r rg � rq z&Function.get_globals.<locals>.<lambda>)�_Function__globalsr r rj rs r rw r � get_globals� rv zFunction.get_globalsc C rc )z5Return a tuple of nonlocals in the function. Nc S rd r )r re r r r rg � rh z(Function.get_nonlocals.<locals>.<lambda>)�_Function__nonlocalsrj r! r r r � get_nonlocals� rl zFunction.get_nonlocalsc C s$ | j du rdd� }| �|�| _ | j S )z:Return a tuple of free variables in the function. Nc S s | t ? t@ tkS r )r r r re r r r rg � rq z$Function.get_frees.<locals>.<lambda>)�_Function__freesrj )r" �is_freer r r � get_frees� s zFunction.get_frees)r- r. r/ ri rr r| rx rz rj rk ru ry r{ r~ r r r r r � s r c @ s e Zd ZdZdd� ZdS )r Nc C s6 | j du ri }| jjD ]}d||j< q t|�| _ | j S )z9Return a tuple of methods declared in the class. Nr; )�_Class__methodsr0 rK r5 rb )r" �dr\ r r r � get_methods� s zClass.get_methods)r- r. r/ r r� r r r r r � s r c @ s� e Zd Zd$dd�dd�Zdd� Zdd � Zd d � Zd d � Zdd� Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� Zd d � Zd d � Zd d!� Zd"d#� ZdS )%r NFrP c C s. || _ || _|t? t@ | _|pd| _|| _d S )Nr )� _Symbol__name�_Symbol__flagsr r �_Symbol__scope�_Symbol__namespaces�_Symbol__module_scope)r" r5 rS rT rQ r r r r# � s zSymbol.__init__c C s d� | j�S )Nz<symbol {0!r}>)r6 r� r! r r r r8 � s zSymbol.__repr__c C � | j S )z#Return a name of a symbol. )r� r! r r r rB � s zSymbol.get_namec C s t | jtj@ �S )zBReturn *True* if the symbol is used in its block. )rE r� r r r! r r r � is_referenced� s zSymbol.is_referencedc C � t | jt@ �S )z4Return *True* if the symbol is a parameter. )rE r� r r! r r r � is_parameter� � zSymbol.is_parameterc C �" t | jttfv p| jo| jt@ �S )z0Return *True* if the sysmbol is global. )rE r� r r r� r� r r! r r r � is_global� � �zSymbol.is_globalc C r� )z(Return *True* if the symbol is nonlocal.)rE r� r r! r r r � is_nonlocal� � zSymbol.is_nonlocalc C � t | jtk�S )zOReturn *True* if the symbol is declared global with a global statement.)rE r� r r! r r r �is_declared_global r� zSymbol.is_declared_globalc C r� )z.Return *True* if the symbol is local. )rE r� r r r� r� r r! r r r �is_local r� zSymbol.is_localc C r� )z2Return *True* if the symbol is annotated. )rE r� r r! r r r � is_annotated r� zSymbol.is_annotatedc C r� )zIReturn *True* if a referenced symbol is not assigned to. )rE r� r r! r r r r} � zSymbol.is_freec C r� )zQReturn *True* if the symbol is created from an import statement. )rE r� r r! r r r � is_imported r� zSymbol.is_importedc C r� )z)Return *True* if a symbol is assigned to.)rE r� r r! r r r � is_assigned r� zSymbol.is_assignedc C s t | j�S )a� Returns *True* if name binding introduces new namespace. If the name is used as the target of a function or class statement, this will be true. Note that a single name can be bound to multiple objects. If is_namespace() is true, the name may also be bound to other objects, like an int or list, that does not introduce a new namespace. )rE r� r! r r r � is_namespace! s zSymbol.is_namespacec C r� )z.Return a list of namespaces bound to this name)r� r! r r r �get_namespaces. s zSymbol.get_namespacesc C s t | j�dkr td��| jd S )z�Return the single namespace bound to this name. Raises ValueError if the name is bound to multiple namespaces. r; z$name is bound to multiple namespacesr )�lenr� � ValueErrorr! r r r � get_namespace2 s zSymbol.get_namespacer )r- r. r/ r# r8 rB r� r� r� r� r� r� r� r} r� r� r� r� r� r r r r r � s" r �__main__r; �exec),�__doc__r r r r r r r r r r r r r r r r r �__all__r r r r r r r r- �os�sys�open�argv�f�read�src�path�split�modrO rX rU �info�printr� r� r r r r �<module> s. D l6` � �
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