o
    ;'hI  ã                   @  sþ   U d dl mZ d dlZd dlmZ d dlmZmZmZm	Z	m
Z
 d dlmZ ddlmZ e	dƒZe	d	ƒZd#dd„Zd#dd„Zd#dd„Zd$dd„Zeƒ Zded< i Zded< edd�G dd„ dƒƒZG dd„ dejƒZG dd „ d ee ƒZG d!d"„ d"ee ƒZdS )%é    )ÚannotationsN)Ú	dataclass)ÚAnyÚGenericÚLiteralÚTypeVarÚoverload)ÚWeakKeyDictionaryé   )Úget_async_backendÚTÚDÚreturnÚNonec                   Ã  ó   �t ƒ  ¡ I dH  dS )zó
    Check for cancellation and allow the scheduler to switch to another task.

    Equivalent to (but more efficient than)::

        await checkpoint_if_cancelled()
        await cancel_shielded_checkpoint()


    .. versionadded:: 3.0

    N)r   Ú
checkpoint© r   r   úDC:\Users\shubh\Videos\agent\nova\Lib\site-packages\anyio/lowlevel.pyr      ó   €r   c                   Ã  r   )z°
    Enter a checkpoint if the enclosing cancel scope has been cancelled.

    This does not allow the scheduler to switch to a different task.

    .. versionadded:: 3.0

    N)r   Úcheckpoint_if_cancelledr   r   r   r   r      s   €	r   c                   Ã  r   )zý
    Allow the scheduler to switch to another task but without checking for cancellation.

    Equivalent to (but potentially more efficient than)::

        with CancelScope(shield=True):
            await checkpoint()


    .. versionadded:: 3.0

    N)r   Úcancel_shielded_checkpointr   r   r   r   r   *   r   r   Úobjectc                   C  s
   t ƒ  ¡ S )ze
    Return a backend specific token object that can be used to get back to the event
    loop.

    )r   Úcurrent_tokenr   r   r   r   r   :   s   
r   z&WeakKeyDictionary[Any, dict[str, Any]]Ú	_run_varszdict[Any, _TokenWrapper]Ú_token_wrappersT)Úfrozenc                   @  s   e Zd ZU dZded< dS )Ú_TokenWrapper)Ú_tokenÚ__weakref__r   r   N)Ú__name__Ú
__module__Ú__qualname__Ú	__slots__Ú__annotations__r   r   r   r   r   G   s   
 r   c                   @  s   e Zd Ze ¡ ZdS )Ú_NoValueSetN)r   r    r!   ÚenumÚautoÚNO_VALUE_SETr   r   r   r   r$   M   s    r$   c                   @  s   e Zd ZdZd	dd„ZdS )
ÚRunvarToken©Ú_varÚ_valueÚ	_redeemedÚvarú	RunVar[T]Úvalueú%T | Literal[_NoValueSet.NO_VALUE_SET]c                 C  s   || _ || _d| _d S )NFr)   )Úselfr-   r/   r   r   r   Ú__init__T   s   
zRunvarToken.__init__N)r-   r.   r/   r0   )r   r    r!   r"   r2   r   r   r   r   r(   Q   s    r(   c                   @  s–   e Zd ZU dZdZejZded< eƒ Z	ded< efd$dd„Z
ed%dd„ƒZed&dd„ƒZed'dd„ƒZefd(dd„Zd)dd„Zd*dd „Zd+d!d"„Zd#S ),ÚRunVarz[
    Like a :class:`~contextvars.ContextVar`, except scoped to the running event loop.
    ©Ú_nameÚ_defaultz!Literal[_NoValueSet.NO_VALUE_SET]r'   zset[_TokenWrapper]r   ÚnameÚstrÚdefaultr0   c                 C  s   || _ || _d S ©Nr4   )r1   r7   r9   r   r   r   r2   e   s   
zRunVar.__init__r   údict[str, T]c                 C  s4   t ƒ }zt| W S  ty   i  }t|< | Y S w r:   )r   r   ÚKeyError)r1   ÚtokenZrun_varsr   r   r   Ú_current_varsk   s   
þzRunVar._current_varsr   úT | Dc                 C  ó   d S r:   r   ©r1   r9   r   r   r   Úgett   ó   z
RunVar.getr   c                 C  r@   r:   r   ©r1   r   r   r   rB   w   rC   ú%D | Literal[_NoValueSet.NO_VALUE_SET]c                 C  s\   z| j | j W S  ty$   |tjur| Y S | jtjur"| j Y S Y nw td| j› d�ƒ‚)NzRun variable "z!" has no value and no default set)r>   r5   r<   r3   r'   r6   ÚLookupErrorrA   r   r   r   rB   z   s   

ÿýÿr/   úRunvarToken[T]c                 C  s*   | j }t| | | jtj¡ƒ}||| j< |S r:   )r>   r(   rB   r5   r3   r'   )r1   r/   Zcurrent_varsr=   r   r   r   Úset‰   s   
z
RunVar.setr=   r   c                 C  sf   |j | ur	tdƒ‚|jrtdƒ‚|jtju r'z| j| j= W n ty&   Y nw |j| j| j< d|_d S )Nz)This token does not belong to this RunVarz This token has already been usedT)	r*   Ú
ValueErrorr,   r+   r$   r'   r>   r5   r<   )r1   r=   r   r   r   Úreset�   s   
ÿ
zRunVar.resetc                 C  s   d| j ›d�S )Nz<RunVar name=ú>)r5   rD   r   r   r   Ú__repr__    s   zRunVar.__repr__N)r7   r8   r9   r0   )r   r;   )r9   r   r   r?   )r   r   )r9   rE   r   r?   )r/   r   r   rG   )r=   rG   r   r   )r   r8   )r   r    r!   Ú__doc__r"   r$   r'   r#   rH   r   r2   Úpropertyr>   r   rB   rJ   rL   r   r   r   r   r3   Z   s$   
 ÿÿ

r3   )r   r   )r   r   )Ú
__future__r   r%   Údataclassesr   Útypingr   r   r   r   r   Úweakrefr	   Z_core._eventloopr   r   r   r   r   r   r   r   r#   r   r   ÚEnumr$   r(   r3   r   r   r   r   Ú<module>   s&    



		