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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.
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and *compile_type* is the *compile()* mode argument.
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r c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�SymbolTableFactoryc C s t �� | _d S �N)�weakref�WeakValueDictionary�_SymbolTableFactory__memo��selfr r r �__init__ s zSymbolTableFactory.__init__c C s6 |j tjkr t||�S |j tjkrt||�S t||�S r )�typer �
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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/ r2 �name�formatr3 )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.
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�module�function�class)� � � zunexpected type: {0}N)r2 r& r � TYPE_MODULEr' r( r9 r# r r r �get_type> s �zSymbolTable.get_typec C � | j jS )z,Return an identifier for the table.
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)r2 r8 r# r r r �get_nameR s zSymbolTable.get_namec C rD )zPReturn the number of the first line in the
block for the table.
)r2 �linenor# r r r �
get_lineno[ s zSymbolTable.get_linenoc C s t | jjtjk�S )zJReturn *True* if the locals in the table
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)�boolr2 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.)rJ r2 �nestedr# r r r � is_nestedg � zSymbolTable.is_nestedc C rL )z:Return *True* if the block has nested namespaces.
)rJ r2 �childrenr# r r r � has_childrenl rO zSymbolTable.has_childrenc C s | j j�� S )zKReturn a view object containing the names of symbols in the table.
)r2 �symbols�keysr# r r r �get_identifiersq rO zSymbolTable.get_identifiersc C sT | j �|�}|du r(| jj| }| �|�}| jjdk}t||||d� }| j |< |S )zLLookup a *name* in the table.
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Nr �� module_scope)r4 r+ r2 rR � _SymbolTable__check_childrenr8 r )r$ r8 �sym�flags�
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<listcomp>� s z+SymbolTable.get_symbols.<locals>.<listcomp>)rT r# r r# r � get_symbols� s zSymbolTable.get_symbolsc s � �fdd��j jD �S )Nc s" g | ]
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�z0SymbolTable.__check_children.<locals>.<listcomp>�r2 rP )r$ r8 r rc r �__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 r3 ra r# r r r_ � s �z,SymbolTable.get_children.<locals>.<listcomp>rd r# r r# r � get_children� s
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| �dd� �| _ | j S )z6Return a tuple of parameters to the function.
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zFunction.get_parametersc �0 | j du rttf� � fdd�}| �|�| _ | j S )z2Return a tuple of locals in the function.
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zFunction.get_localsc rv )z3Return a tuple of globals in the function.
Nc rw r rx rn ��globr r rp � r{ z&Function.get_globals.<locals>.<lambda>)�_Function__globalsr r rs r} r r� r � get_globals� r� zFunction.get_globalsc C rl )z5Return a tuple of nonlocals in the function.
Nc S rm r )r rn r r r rp � rq z(Function.get_nonlocals.<locals>.<lambda>)�_Function__nonlocalsrs r# r r r �
get_nonlocals� ru zFunction.get_nonlocalsc C s$ | j du rdd� }| �|�| _ | j S )z:Return a tuple of free variables in the function.
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r r rn r r r rp � r{ z$Function.get_frees.<locals>.<lambda>)�_Function__freesrs )r$ �is_freer r r � get_frees� s
zFunction.get_frees)r/ r0 r1 rr r| r� r� r� rs rt r r� 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.
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zSymbol.__init__c C s d� | j�S )Nz<symbol {0!r}>)r9 r� r# r r r r; � s zSymbol.__repr__c C � | j S )z#Return a name of a symbol.
)r� r# r r r rG � s zSymbol.get_namec C s t | jtj@ �S )zBReturn *True* if the symbol is used in
its block.
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is_referenced� s zSymbol.is_referencedc C � t | jt@ �S )z4Return *True* if the symbol is a parameter.
)rJ 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.
)rJ 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.)rJ 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.)rJ r� r r# r r r �is_declared_global r� zSymbol.is_declared_globalc C r� )z.Return *True* if the symbol is local.
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r r� r� r r# r r r �is_local r� zSymbol.is_localc C r� )z2Return *True* if the symbol is annotated.
)rJ r� r r# r r r � is_annotated r� zSymbol.is_annotatedc C r� )zIReturn *True* if a referenced symbol is
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)rJ r� r r# r r r r� � zSymbol.is_freec C r� )zQReturn *True* if the symbol is created from
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t | j�S )a� Returns *True* if name binding introduces new namespace.
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objects, like an int or list, that does not introduce a new
namespace.
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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.
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