o
    e32                     @   s   d dl mZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZm	Z	 G dd	 d	e
ZG d
d deZG dd deZG dd deZG dd dZG dd dejeZeZG dd dejeZG dd dejZG dd deZdS )    )absolute_import   )Nodes)	ExprNodes)Node)AtomicExprNode)
c_ptr_typec_bint_typec                   @   s&   e Zd ZdZdZdddZdd ZdS )
TempHandleNFc                 C   s$   || _ |d u r|j| _d S || _d S N)typeis_pyobjectneeds_cleanup)selfr   r    r   ID:\Projects\ConvertPro\env\Lib\site-packages\Cython/Compiler/UtilNodes.py__init__   s   
zTempHandle.__init__c                 C   s   t || | jdS )N)handler   )TempRefNoder   )r   posr   r   r   ref      zTempHandle.refr   )__name__
__module____qualname__tempneeds_xdecrefr   r   r   r   r   r   r
      s
    
r
   c                   @   s>   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdddZdS )r   c                 C      | j | jj ks	J | S r   r   r   r   envr   r   r   analyse_types#      zTempRefNode.analyse_typesc                 C   r   r   r   r   r   r   r   analyse_target_types'   r"   z TempRefNode.analyse_target_typesc                 C      d S r   r   r   r   r   r   analyse_target_declaration+      z&TempRefNode.analyse_target_declarationc                 C   s   | j j}|d u r
d}|S )Nz<error>)r   r   )r   resultr   r   r   calculate_result_code.   s   z!TempRefNode.calculate_result_codec                 C   r$   r   r   r   coder   r   r   generate_result_code3   r&   z TempRefNode.generate_result_codeFc                 C   sj   | j jr|| ||  |   |d|  |r| n||  f  || |	| d S N%s = %s;)
r   r   make_owned_referenceZput_xdecrefr'   ctypeputln	result_asgenerate_post_assignment_code
free_tempsr   rhsr*   Zoverloaded_assignmentr   r   r   generate_assignment_code6   s   

z$TempRefNode.generate_assignment_codeNF)	r   r   r   r!   r#   r%   r(   r+   r6   r   r   r   r   r      s    r   c                   @   s>   e Zd ZdZdgZdd Zdd Zdd Zd	d
 Zdd Z	dS )TempsBlockNodea_  
    Creates a block which allocates temporary variables.
    This is used by transforms to output constructs that need
    to make use of a temporary variable. Simply pass the types
    of the needed temporaries to the constructor.

    The variables can be referred to using a TempRefNode
    (which can be constructed by calling get_ref_node).
    bodyc                 C   sz   | j D ]}|jj|j|jd|_q| j| | j D ] }|jr3|jr+|	|j|j n|
|j|j |j|j qd S )NZ
manage_ref)Ztemps	funcstateallocate_tempr   r   r   r9   generate_execution_coder   Zput_xdecref_clearput_decref_clearrelease_temp)r   r*   r   r   r   r   r=   U   s   


z&TempsBlockNode.generate_execution_codec                 C      | j | d S r   r9   analyse_declarationsr   r   r   r   rB   b   r   z#TempsBlockNode.analyse_declarationsc                 C      | j || _ | S r   r9   analyse_expressionsr   r   r   r   rE   e      z"TempsBlockNode.analyse_expressionsc                 C      | j || d S r   r9   generate_function_definitionsr   r    r*   r   r   r   rI   i      z,TempsBlockNode.generate_function_definitionsc                 C   r@   r   )r9   annotater)   r   r   r   rL   l   r   zTempsBlockNode.annotateN)
r   r   r   __doc__child_attrsr=   rB   rE   rI   rL   r   r   r   r   r8   C   s    r8   c                   @   s   e Zd Zg ZdZd(ddZdd Zdd	 Zd
d Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Zdd Zd)d d!Zd"d# Zd$d% Zd&d' ZdS )*ResultRefNodeFNTc                 C   sh   || _ d | _|| _|d ur|j| _t|dd | _|d ur|| _|d ur&|| _|r+d| _| jd us2J d S )Nr   T)
expressionr   may_hold_nonegetattrr   is_temp)r   rP   r   r   rQ   rS   r   r   r   r   w   s   zResultRefNode.__init__c                 C      | S r   r   r   r   r   r   
clone_node   s   zResultRefNode.clone_nodec                 C   s   | j r	| j |S dS )Nr   )rP   type_dependenciesr   r   r   r   rW      s   zResultRefNode.type_dependenciesc                 C   s$   || _ t|dd }|r|| _d S d S )Nr   )rP   rR   r   )r   rP   r   r   r   r   update_expression   s
   
zResultRefNode.update_expressionc                 C   r$   r   r   r   r   r   r   r%      r&   z(ResultRefNode.analyse_target_declarationc                 C   s.   | j d ur| j js| j || _ | j j| _| S r   )rP   r   r!   r   r   r   r   r!      s
   

zResultRefNode.analyse_typesc                 C   sB   | j d ur| j S | jd ur| jj d ur| jj S | j|S J d)NFz"cannot infer type of ResultRefNode)r   rP   
infer_typer   r   r   r   rY      s   

zResultRefNode.infer_typec                 C   s   | j jsdS | jS )NF)r   r   rQ   rU   r   r   r   may_be_none   s   zResultRefNode.may_be_nonec                 C   s*   | j d ur
| j  S | jd ur| jjS dS NT)rP   rZ   r   r   rU   r   r   r   _DISABLED_may_be_none   s
   


z#ResultRefNode._DISABLED_may_be_nonec                 C   s   dS r[   r   rU   r   r   r   	is_simple   r&   zResultRefNode.is_simplec                 C   s>   z| j W S  ty   | jd ur| j | _ Y | j S Y | j S w r   )result_codeAttributeErrorrP   r'   rU   r   r   r   r'      s   
zResultRefNode.resultc                 C   r$   r   r   r)   r   r   r   generate_evaluation_code   r&   z&ResultRefNode.generate_evaluation_codec                 C   r$   r   r   r)   r   r   r   r+      r&   z"ResultRefNode.generate_result_codec                 C   r$   r   r   r)   r   r   r   generate_disposal_code   r&   z$ResultRefNode.generate_disposal_codec                 C   sp   | j jr|| | js||  |   |d|  |r"| n||  f  |	| |
| d S r,   )r   r   r.   lhs_of_first_assignmentZ
put_decrefr'   r/   r0   r1   r2   r3   r4   r   r   r   r6      s   

z&ResultRefNode.generate_assignment_codec                 C   r$   r   r   r   r   r   r   allocate_temps   r&   zResultRefNode.allocate_tempsc                 C   r$   r   r   r   r   r   r   r?      r&   zResultRefNode.release_tempc                 C   r$   r   r   r)   r   r   r   r3      r&   zResultRefNode.free_temps)NNNTFr7   )r   r   r   subexprsrb   r   rV   rW   rX   r%   r!   rY   rZ   r\   r]   r'   r`   r+   ra   r6   rc   r?   r3   r   r   r   r   rO   p   s*    
		
rO   c                   @   s$   e Zd Zdd Zdd Zdd ZdS )LetNodeMixinc                 C   s   || _ |j| _d S r   )	lazy_temprP   temp_expression)r   rf   r   r   r   set_temp_expr   s   zLetNodeMixin.set_temp_exprc                 C   s   | j | | j j| _| jjrt| jj| _| j  | _| jr&| j 	 | _
n4| jjr1| j | n| j | |jj| jdd| _
|d| j
| j 	 f  | j | | j | | j
| j_d S )NTr:   r-   )rg   r`   r   	temp_typeZis_arrayr   Z	base_typeZresult_in_temp_result_in_tempr'   r   Zis_memoryviewsliceZmake_owned_memoryviewslicer.   r;   r<   r0   ra   r3   rf   r^   r)   r   r   r   setup_temp_expr   s"   
zLetNodeMixin.setup_temp_exprc                 C   sL   | j r| j| | j| d S | jjr|| j| j |j	| j d S r   )
rj   rg   ra   r3   ri   Zneeds_refcountingr>   r   r;   r?   r)   r   r   r   teardown_temp_expr   s   zLetNodeMixin.teardown_temp_exprN)r   r   r   rh   rk   rl   r   r   r   r   re      s    re   c                   @   sT   e Zd ZddgZdd Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
dd ZdS )EvalWithTempExprNoderg   subexpressionc                 C   s&   |  | |j| _|| _| jj| _d S r   )rh   r   rn   r   )r   rf   rn   r   r   r   r   
  s   
zEvalWithTempExprNode.__init__c                 C   s   | j |S r   )rn   rY   r   r   r   r   rY     s   zEvalWithTempExprNode.infer_typec                 C   
   | j  S r   )rn   rZ   rU   r   r   r   rZ        
z EvalWithTempExprNode.may_be_nonec                 C   ro   r   )rn   r'   rU   r   r   r   r'     rp   zEvalWithTempExprNode.resultc                 C   s8   | j || _ | j| j  | j|| _| jj| _| S r   )rg   r!   rf   rX   rn   r   r   r   r   r   r!     s
   
z"EvalWithTempExprNode.analyse_typesc                 C   r@   r   )rn   r3   r)   r   r   r   free_subexpr_temps!  r   z'EvalWithTempExprNode.free_subexpr_tempsc                 C   r@   r   )rn   ra   r)   r   r   r   generate_subexpr_disposal_code$  r   z3EvalWithTempExprNode.generate_subexpr_disposal_codec                 C   $   |  | | j| | | d S r   )rk   rn   r`   rl   r)   r   r   r   r`   '     
z-EvalWithTempExprNode.generate_evaluation_codeN)r   r   r   rd   r   rY   rZ   r'   r!   rq   rr   r`   r   r   r   r   rm     s    rm   c                   @   s<   e Zd ZddgZdd Zdd Zdd Zd	d
 Zdd ZdS )LetNoderg   r9   c                 C   s   |  | |j| _|| _d S r   )rh   r   r9   )r   rf   r9   r   r   r   r   <  s   

zLetNode.__init__c                 C   s   | j | | j| d S r   )rg   rB   r9   r   r   r   r   rB   A     zLetNode.analyse_declarationsc                 C   s    | j || _ | j|| _| S r   )rg   rE   r9   r   r   r   r   rE   E  s   zLetNode.analyse_expressionsc                 C   rs   r   )rk   r9   r=   rl   r)   r   r   r   r=   J  rt   zLetNode.generate_execution_codec                 C   s    | j || | j|| d S r   )rg   rI   r9   rJ   r   r   r   rI   O  s   z%LetNode.generate_function_definitionsN)	r   r   r   rN   r   rB   rE   r=   rI   r   r   r   r   ru   0  s    
ru   c                   @   sF   e Zd Zg ZdgZdd Zdd Zdd Zdd	 Zd
d Z	dd Z
dS )TempResultFromStatNoder9   c                 C   s&   || _ |j| _|| _|j| _d| _d S )Nr   )
result_refr   r9   r   rS   )r   rx   r9   r   r   r   r   ]  s
   
zTempResultFromStatNode.__init__c                 C   r@   r   rA   r   r   r   r   rB   d  r   z+TempResultFromStatNode.analyse_declarationsc                 C   rC   r   rD   r   r   r   r   r!   g  rF   z$TempResultFromStatNode.analyse_typesc                 C   ro   r   )rx   rZ   rU   r   r   r   rZ   k  rp   z"TempResultFromStatNode.may_be_nonec                 C   s   |   | j_| j| d S r   )r'   rx   r^   r9   r=   r)   r   r   r   r+   n  rv   z+TempResultFromStatNode.generate_result_codec                 C   rG   r   rH   rJ   r   r   r   rI   r  rK   z4TempResultFromStatNode.generate_function_definitionsN)r   r   r   rd   rN   r   rB   r!   rZ   r+   rI   r   r   r   r   rw   T  s    rw   c                   @   s,   e Zd ZdZeZdd Zdd Zdd ZdS )	
HasGilNodez`
    Simple node that evaluates to 0 or 1 depending on whether we're
    in a nogil context
    c                 C   rT   r   r   r   r   r   r   r!   }  r&   zHasGilNode.analyse_typesc                 C   s   |j j| _d S r   )r;   Z	gil_ownedhas_gilr)   r   r   r   r+        zHasGilNode.generate_result_codec                 C   s   | j rdS dS )N10)rz   rU   r   r   r   r(     r{   z HasGilNode.calculate_result_codeN)	r   r   r   rM   r	   r   r!   r+   r(   r   r   r   r   ry   v  s    ry   N)
__future__r    r   r   r   r   Z
PyrexTypesr   r	   objectr
   r   r8   rO   re   ZExprNoderm   Z
LetRefNodeZStatNoderu   rw   ry   r   r   r   r   <module>   s    $-q#)$"