3
PO[t-                 @   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 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dS )    )absolute_import   )Nodes)	ExprNodes)Node)AtomicExprNode)
c_ptr_typec               @   s&   e Zd ZdZdZdddZdd ZdS )
TempHandleNFc             C   s"   || _ |d kr|j| _n|| _d S )N)typeis_pyobjectneeds_cleanup)selfr
   r    r   i/home/psgendb/BIRCHDEV/lib-linux-x86_64/python/lib64/python3.6/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   s    zTempHandle.ref)N)__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   s   | j | jj kst| S )N)r
   r   AssertionError)r   envr   r   r   analyse_types#   s    zTempRefNode.analyse_typesc             C   s   | j | jj kst| S )N)r
   r   r   )r   r   r   r   r   analyse_target_types'   s    z TempRefNode.analyse_target_typesc             C   s   d S )Nr   )r   r   r   r   r   analyse_target_declaration+   s    z&TempRefNode.analyse_target_declarationc             C   s   | j j}|d krd}|S )Nz<error>)r   r   )r   resultr   r   r   calculate_result_code.   s     z!TempRefNode.calculate_result_codec             C   s   d S )Nr   )r   coder   r   r   generate_result_code3   s    z TempRefNode.generate_result_codeFc             C   sj   | j jr&|j| |j| j | j  |jd| j |r>|j n|j| j f  |j| |j	| d S )Nz%s = %s;)
r
   r   make_owned_referenceput_xdecrefr   ctypeputln	result_asgenerate_post_assignment_code
free_temps)r   rhsr!   overloaded_assignmentr   r   r   generate_assignment_code6   s    
 
z$TempRefNode.generate_assignment_codeN)F)	r   r   r   r   r   r   r    r"   r,   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   s   x$| j D ]}|jj|j|jd|_qW | jj| xJ| j D ]@}|jrl|jr\|j	|j|j n|j
|j|j |jj|j q:W d S )N)
manage_ref)temps	funcstateallocate_tempr
   r   r   r.   generate_execution_coder   put_xdecref_clearput_decref_clearrelease_temp)r   r!   r   r   r   r   r3   U   s    z&TempsBlockNode.generate_execution_codec             C   s   | j j| d S )N)r.   analyse_declarations)r   r   r   r   r   r7   b   s    z#TempsBlockNode.analyse_declarationsc             C   s   | j j|| _ | S )N)r.   analyse_expressions)r   r   r   r   r   r8   e   s    z"TempsBlockNode.analyse_expressionsc             C   s   | j j|| d S )N)r.   generate_function_definitions)r   r   r!   r   r   r   r9   i   s    z,TempsBlockNode.generate_function_definitionsc             C   s   | j j| d S )N)r.   annotate)r   r!   r   r   r   r:   l   s    zTempsBlockNode.annotateN)
r   r   r   __doc__child_attrsr3   r7   r8   r9   r:   r   r   r   r   r-   C   s   r-   c               @   s   e Zd Zg ZdZd&ddZdd Zdd	 Zd
d Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Zd'ddZd d! Zd"d# Zd$d% ZdS )(ResultRefNodeFNTc             C   sl   || _ d | _|| _|d k	r4|j| _t|dr4|j| _|d k	rB|| _|d k	rP|| _|rZd| _| jd k	shtd S )Nr
   T)
expressionr   may_hold_nonehasattrr
   is_tempr   )r   r>   r   r
   r?   rA   r   r   r   r   w   s    
zResultRefNode.__init__c             C   s   | S )Nr   )r   r   r   r   
clone_node   s    zResultRefNode.clone_nodec             C   s   | j r| j j|S f S d S )N)r>   type_dependencies)r   r   r   r   r   rC      s    zResultRefNode.type_dependenciesc             C   s   || _ t|dr|j| _d S )Nr
   )r>   r@   r
   )r   r>   r   r   r   update_expression   s    
zResultRefNode.update_expressionc             C   s.   | j d k	r*| j js | j j|| _ | j j| _| S )N)r>   r
   r   )r   r   r   r   r   r      s
    

zResultRefNode.analyse_typesc             C   sJ   | j d k	r| j S | jd k	r:| jj d k	r.| jj S | jj|S dsFtdd S )NFz"cannot infer type of ResultRefNode)r
   r>   
infer_typer   )r   r   r   r   r   rE      s    

zResultRefNode.infer_typec             C   s   | j jsdS | jS )NF)r
   r   r?   )r   r   r   r   may_be_none   s    zResultRefNode.may_be_nonec             C   s*   | j d k	r| j j S | jd k	r&| jjS dS )NT)r>   rF   r
   r   )r   r   r   r   _DISABLED_may_be_none   s
    


z#ResultRefNode._DISABLED_may_be_nonec             C   s   dS )NTr   )r   r   r   r   	is_simple   s    zResultRefNode.is_simplec             C   s8   y| j S  tk
r0   | jd k	r,| jj | _ Y nX | j S )N)result_codeAttributeErrorr>   r   )r   r   r   r   r      s    
zResultRefNode.resultc             C   s   d S )Nr   )r   r!   r   r   r   generate_evaluation_code   s    z&ResultRefNode.generate_evaluation_codec             C   s   d S )Nr   )r   r!   r   r   r   r"      s    z"ResultRefNode.generate_result_codec             C   s   d S )Nr   )r   r!   r   r   r   generate_disposal_code   s    z$ResultRefNode.generate_disposal_codec             C   sp   | j jr,|j| | js,|j| j | j  |jd| j |rD|j n|j| j f  |j	| |j
| d S )Nz%s = %s;)r
   r   r#   lhs_of_first_assignment
put_decrefr   r%   r&   r'   r(   r)   )r   r*   r!   r+   r   r   r   r,      s    
 
z&ResultRefNode.generate_assignment_codec             C   s   d S )Nr   )r   r   r   r   r   allocate_temps   s    zResultRefNode.allocate_tempsc             C   s   d S )Nr   )r   r   r   r   r   r6      s    zResultRefNode.release_tempc             C   s   d S )Nr   )r   r!   r   r   r   r)      s    zResultRefNode.free_temps)NNNTF)F)r   r   r   subexprsrM   r   rB   rC   rD   r   rE   rF   rG   rH   r   rK   r"   rL   r,   rO   r6   r)   r   r   r   r   r=   p   s&   
		
r=   c               @   s$   e Zd Zdd Zdd Zdd ZdS )LetNodeMixinc             C   s   || _ |j| _d S )N)	lazy_tempr>   temp_expression)r   rR   r   r   r   set_temp_expr   s    zLetNodeMixin.set_temp_exprc             C   s   | j j| | j j| _| jjr,t| jj| _| j j | _| jrL| j j	 | _
nR| j j| |jj| jdd| _
|jd| j
| j j	 f  | j j| | j j| | j
| j_d S )NT)r/   z%s = %s;)rS   rK   r
   	temp_typeis_arrayr   	base_typeresult_in_temp_result_in_tempr   r   r#   r1   r2   r&   rL   r)   rR   rI   )r   r!   r   r   r   setup_temp_expr   s    
zLetNodeMixin.setup_temp_exprc             C   sJ   | j r | jj| | jj| n&| jjr8|j| j| j |jj	| j d S )N)
rY   rS   rL   r)   rU   r   r5   r   r1   r6   )r   r!   r   r   r   teardown_temp_expr   s    zLetNodeMixin.teardown_temp_exprN)r   r   r   rT   rZ   r[   r   r   r   r   rQ      s   rQ   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 )EvalWithTempExprNoderS   subexpressionc             C   s&   | j | |j| _|| _| jj| _d S )N)rT   r   r]   r
   )r   rR   r]   r   r   r   r     s    
zEvalWithTempExprNode.__init__c             C   s   | j j|S )N)r]   rE   )r   r   r   r   r   rE     s    zEvalWithTempExprNode.infer_typec             C   s
   | j j S )N)r]   rF   )r   r   r   r   rF     s    z EvalWithTempExprNode.may_be_nonec             C   s
   | j j S )N)r]   r   )r   r   r   r   r     s    zEvalWithTempExprNode.resultc             C   s8   | j j|| _ | jj| j  | jj|| _| jj| _| S )N)rS   r   rR   rD   r]   r
   )r   r   r   r   r   r     s
    
z"EvalWithTempExprNode.analyse_typesc             C   s   | j j| d S )N)r]   r)   )r   r!   r   r   r   free_subexpr_temps  s    z'EvalWithTempExprNode.free_subexpr_tempsc             C   s   | j j| d S )N)r]   rL   )r   r!   r   r   r   generate_subexpr_disposal_code  s    z3EvalWithTempExprNode.generate_subexpr_disposal_codec             C   s$   | j | | jj| | j| d S )N)rZ   r]   rK   r[   )r   r!   r   r   r   rK   !  s    
z-EvalWithTempExprNode.generate_evaluation_codeN)r   r   r   rP   r   rE   rF   r   r   r^   r_   rK   r   r   r   r   r\      s   r\   c               @   s<   e Zd ZddgZdd Zdd Zdd Zd	d
 Zdd ZdS )LetNoderS   r.   c             C   s   | j | |j| _|| _d S )N)rT   r   r.   )r   rR   r.   r   r   r   r   6  s    
zLetNode.__init__c             C   s   | j j| | jj| d S )N)rS   r7   r.   )r   r   r   r   r   r7   ;  s    zLetNode.analyse_declarationsc             C   s    | j j|| _ | jj|| _| S )N)rS   r8   r.   )r   r   r   r   r   r8   ?  s    zLetNode.analyse_expressionsc             C   s$   | j | | jj| | j| d S )N)rZ   r.   r3   r[   )r   r!   r   r   r   r3   D  s    
zLetNode.generate_execution_codec             C   s    | j j|| | jj|| d S )N)rS   r9   r.   )r   r   r!   r   r   r   r9   I  s    z%LetNode.generate_function_definitionsN)	r   r   r   r<   r   r7   r8   r3   r9   r   r   r   r   r`   *  s   
r`   c               @   s6   e Zd Zg ZdgZdd Zdd Zdd Zdd	 Zd
S )TempResultFromStatNoder.   c             C   s&   || _ |j| _|| _|j| _d| _d S )Nr   )
result_refr   r.   r
   rA   )r   rb   r.   r   r   r   r   W  s
    zTempResultFromStatNode.__init__c             C   s   | j j| d S )N)r.   r7   )r   r   r   r   r   r7   ^  s    z+TempResultFromStatNode.analyse_declarationsc             C   s   | j j|| _ | S )N)r.   r8   )r   r   r   r   r   r   a  s    z$TempResultFromStatNode.analyse_typesc             C   s   | j  | j_| jj| d S )N)r   rb   rI   r.   r3   )r   r!   r   r   r   r"   e  s    z+TempResultFromStatNode.generate_result_codeN)	r   r   r   rP   r<   r   r7   r   r"   r   r   r   r   ra   N  s   ra   N)
__future__r    r   r   r   r   
PyrexTypesr   objectr	   r   r-   r=   rQ   ExprNoder\   
LetRefNodeStatNoder`   ra   r   r   r   r   <module>   s   $-n )$