B
    /b)                 @   s   d dl ZddlmZ ddlmZ dZdZdZdZ	dej
ej ejd	 d	d
ddZdejejd	 d	dddZG dd	 d	ZG dd deZG dd deZdS )    N   )nodes)NodeVisitorparamZresolvealiasZ	undefinedSymbols)r   parent_symbolsreturnc             C   s.   t |d}t|}x| D ]}|| qW |S )N)parent)r   FrameSymbolVisitorvisit)r   r   symvisitornode r   0lib/python3.7/site-packages/jinja2/idtracking.pyfind_symbols   s
    

r   )r   r   r	   c             C   s   t |d}||  |S )N)r
   )r   analyze_node)r   r   r   r   r   r   symbols_for_node   s    

r   c               @   s*  e Zd Zd#ejd  eje ddddZejej	ddddZ
d$eejejeeje f  edd	d
Zeejej	 dddZeeje dddZeedddZd dddZeddddZeedddZeddddZejd  ddddZejeef ddd Zeje dd!d"ZdS )%r   N)r
   levelr	   c             C   sD   |d kr |d krd}n
|j d }|| _ || _i | _i | _t | _d S )Nr   r   )r   r
   refsloadssetstores)selfr
   r   r   r   r   __init__   s    
zSymbols.__init__)r   kwargsr	   c             K   s   t | }|j|f| d S )N)RootVisitorr   )r   r   r   r   r   r   r   r   .   s    zSymbols.analyze_node)nameloadr	   c             C   s2   d| j  d| }|| j|< |d k	r.|| j|< |S )NZl__)r   r   r   )r   r   r   Zidentr   r   r   _define_ref2   s
    

zSymbols._define_ref)targetr	   c             C   s.   || j kr| j | S | jd k	r*| j|S d S )N)r   r
   	find_load)r   r"   r   r   r   r#   ;   s
    


zSymbols.find_load)r   r	   c             C   s.   || j kr| j | S | jd k	r*| j|S d S )N)r   r
   find_ref)r   r   r   r   r   r$   D   s
    


zSymbols.find_refc             C   s&   |  |}|d kr"td|d|S )NzFTried to resolve a name to a reference that was unknown to the frame ())r$   AssertionError)r   r   rvr   r   r   refM   s
    
zSymbols.ref)r	   c             C   sB   t | j}|j| j | j |_| j |_| j |_|S )N)	object__new__	__class____dict__updater   copyr   r   )r   r'   r   r   r   r.   V   s    zSymbols.copyc             C   s`   | j | || jkr\| jd k	rJ| j|}|d k	rJ| j|t|fd d S | j|td fd d S )N)r   )r   addr   r
   r$   r!   VAR_LOAD_ALIASVAR_LOAD_UNDEFINED)r   r   Z	outer_refr   r   r   store^   s    

zSymbols.storec             C   s   | j | | j|td fdS )N)r   )r   r/   r!   VAR_LOAD_PARAMETER)r   r   r   r   r   declare_parameterp   s    zSymbols.declare_parameterc             C   s$   |  |d kr | j|t|fd d S )N)r   )r$   r!   VAR_LOAD_RESOLVE)r   r   r   r   r   r   t   s    zSymbols.load)branch_symbolsr	   c       	      C   s   i }x<|D ]4}x.|j D ]$}|| j kr&q||dd ||< qW q
W x6|D ].}| j|j | j|j | j |j  qHW xx| D ]l\}}|t|krq| |}|d k	std| j	d k	r| j	|}|d k	rt
|f| j|< qt|f| j|< qW d S )Nr   r   zshould not happen)r   getr   r-   r   itemslenr$   r&   r
   r0   r5   )	r   r6   r   branchr"   r   r   Zbranch_countZouter_targetr   r   r   branch_updatex   s*    




zSymbols.branch_updatec             C   sJ   i }| }x<|d k	rDx(t |jD ]}||kr| |||< qW |j}q
W |S )N)sortedr   r$   r
   )r   r'   r   r   r   r   r   dump_stores   s    

zSymbols.dump_storesc             C   sP   t  }| }x@|d k	rJx,| j D ]\}\}}|tkr || q W |j}qW |S )N)r   r   r8   r3   r/   r
   )r   r'   r   r"   Zinstrr    r   r   r   dump_param_targets   s    

zSymbols.dump_param_targets)NN)N)__name__
__module____qualname__tOptionalintr   r   NodeAnyr   strZTupler!   r#   r$   r(   r.   r2   r4   r   Sequencer;   ZDictr=   Setr>   r   r   r   r   r      s   			c               @   s   e Zd ZdddddZejejddddZeZ	eZ
eZeZeZeZeZejejddd	d
ZejejddddZejejddddZdejeejddddZejejddddZejejejddddZdS )r   r   N)symbolsr	   c             C   s   t || _d S )N)r   sym_visitor)r   rJ   r   r   r   r      s    zRootVisitor.__init__)r   r   r	   c             K   s"   x|  D ]}| j| q
W d S )N)iter_child_nodesrK   r   )r   r   r   childr   r   r   _simple_visit   s    zRootVisitor._simple_visitc             K   s    x|j D ]}| j| qW d S )N)bodyrK   r   )r   r   r   rM   r   r   r   visit_AssignBlock   s    zRootVisitor.visit_AssignBlockc             K   s&   x |j ddD ]}| j| qW d S )N)call)Zexclude)rL   rK   r   )r   r   r   rM   r   r   r   visit_CallBlock   s    zRootVisitor.visit_CallBlockc             K   s    x|j D ]}| j| qW d S )N)rO   rK   r   )r   r   r   rM   r   r   r   visit_OverlayScope   s    zRootVisitor.visit_OverlayScoperO   )r   
for_branchr   r	   c             K   s   |dkr"| j j|jdd |j}nN|dkr2|j}n>|dkrh| j j|jdd |jd k	rd| j |j d S td|rx|D ]}| j | qzW d S )NrO   T)store_as_paramelsetestzUnknown for branch)rK   r   r"   rO   else_rW   RuntimeError)r   r   rT   r   r:   itemr   r   r   	visit_For   s    

zRootVisitor.visit_Forc             K   s<   x|j D ]}| j| qW x|jD ]}| j| q$W d S )N)ZtargetsrK   r   rO   )r   r   r   r"   rM   r   r   r   
visit_With   s    zRootVisitor.visit_With)r   argsr   r	   c             O   s   t dt|jd S )NzCannot find symbols for )NotImplementedErrortyper?   )r   r   r]   r   r   r   r   generic_visit   s    zRootVisitor.generic_visit)rO   )r?   r@   rA   r   r   rE   rB   rF   rN   Zvisit_Templatevisit_Blockvisit_Macrovisit_FilterBlockvisit_Scopevisit_IfZvisit_ScopedEvalContextModifierAssignBlockrP   	CallBlockrR   OverlayScoperS   ForrG   r[   Withr\   r`   r   r   r   r   r      s    r   c               @   sn  e Zd ZdZdddddZd(ejeej	ddd	d
Z
ejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddddZejej	ddd d!Z ej!ej	ddd"d#Z"ej#ej	ddd$d%Z$ej%ej	ddd&d'Z&dS ))r   zA visitor for `Frame.inspect`.r   N)rJ   r	   c             C   s
   || _ d S )N)rJ   )r   rJ   r   r   r   r      s    zFrameSymbolVisitor.__init__F)r   rU   r   r	   c             K   sT   |s|j dkr| j|j n2|j dkr8| j|j n|j dkrP| j|j dS )z2All assignments to names go through this function.r   r2   r   N)ZctxrJ   r4   r   r2   r   )r   r   rU   r   r   r   r   
visit_Name   s    

zFrameSymbolVisitor.visit_Name)r   r   r	   c             K   s   | j |j d S )N)rJ   r   r   )r   r   r   r   r   r   visit_NSRef   s    zFrameSymbolVisitor.visit_NSRefc                sn   j |jf  jtjtj dd fdd}||j}||j}||j	pTd}j
|||g d S )Nr   )r   r	   c                s4      _}x| D ]}j|f  qW _|S )N)r.   rJ   r   )r   r'   Zsubnode)r   original_symbolsr   r   r   inner_visit   s
    
z0FrameSymbolVisitor.visit_If.<locals>.inner_visitr   )r   rW   rJ   rB   Iterabler   rE   rO   Zelif_rX   r;   )r   r   r   rn   Zbody_symbolsZelif_symbolsZelse_symbolsr   )r   rm   r   r   re      s     	

zFrameSymbolVisitor.visit_Ifc             K   s   | j |j d S )N)rJ   r2   r   )r   r   r   r   r   r   rb     s    zFrameSymbolVisitor.visit_Macroc             K   s    | j |f| | j|j d S )N)r`   rJ   r2   r"   )r   r   r   r   r   r   visit_Import  s    zFrameSymbolVisitor.visit_Importc             K   sJ   | j |f| x6|jD ],}t|tr6| j|d  q| j| qW d S )Nr   )r`   names
isinstancetuplerJ   r2   )r   r   r   r   r   r   r   visit_FromImport  s
    
z#FrameSymbolVisitor.visit_FromImportc             K   s$   | j |jf| | j |jf| dS )z'Visit assignments in the correct order.N)r   r   r"   )r   r   r   r   r   r   visit_Assign  s    zFrameSymbolVisitor.visit_Assignc             K   s   | j |jf| dS )zqVisiting stops at for blocks.  However the block sequence
        is visited as part of the outer scope.
        N)r   iter)r   r   r   r   r   r   r[   #  s    zFrameSymbolVisitor.visit_Forc             K   s   | j |jf| d S )N)r   rQ   )r   r   r   r   r   r   rR   )  s    z"FrameSymbolVisitor.visit_CallBlockc             K   s   | j |jf| d S )N)r   filter)r   r   r   r   r   r   rc   ,  s    z$FrameSymbolVisitor.visit_FilterBlockc             K   s   x|j D ]}| | qW d S )N)valuesr   )r   r   r   r"   r   r   r   r\   /  s    zFrameSymbolVisitor.visit_Withc             K   s   | j |jf| dS )zStop visiting at block assigns.N)r   r"   )r   r   r   r   r   r   rP   3  s    z$FrameSymbolVisitor.visit_AssignBlockc             K   s   dS )zStop visiting at scopes.Nr   )r   r   r   r   r   r   rd   7  s    zFrameSymbolVisitor.visit_Scopec             K   s   dS )zStop visiting at blocks.Nr   )r   r   r   r   r   r   ra   :  s    zFrameSymbolVisitor.visit_Blockc             K   s   dS )z!Do not visit into overlay scopes.Nr   )r   r   r   r   r   r   rS   =  s    z%FrameSymbolVisitor.visit_OverlayScope)F)'r?   r@   rA   __doc__r   r   NameboolrB   rF   rk   ZNSRefrl   ZIfre   ZMacrorb   ZImportrp   Z
FromImportrt   ZAssignru   ri   r[   rg   rR   ZFilterBlockrc   rj   r\   rf   rP   ZScoperd   ZBlockra   rh   rS   r   r   r   r   r      s$   		r   )N)N)typingrB    r   r   r   r3   r5   r0   r1   ro   rE   rC   r   r   r   r   r   r   r   r   r   <module>   s   	 :