o
    _i                     @  s   d dl mZ d dlmZmZmZmZ d dlmZm	Z	 g dZ
G dd deZG dd deeef ZG d	d
 d
e	Zeeeef B eeeef  B eB ZdS )    )annotations)IterableIteratorMappingMutableMapping)AnyProtocol)HeadersHeadersLikeMultipleValuesErrorc                      s"   e Zd ZdZd fddZ  ZS )r   zP
    Exception raised when :class:`Headers` has multiple values for a key.

    returnstrc                   s&   t | jdkrt| jd S t  S N   r   )lenargsreprsuper__str__self	__class__ [/sda-disk/www/egybert/egybert_env/lib/python3.10/site-packages/websockets/datastructures.pyr      s   
zMultipleValuesError.__str__r   r   )__name__
__module____qualname____doc__r   __classcell__r   r   r   r   r      s    r   c                      s   e Zd ZdZddgZd5d
dZd6ddZd6ddZd7ddZd8ddZ	d9ddZ
d:ddZd;ddZd<d d!Zd=d#d$Zd>d%d&Zd?d)d*Zd@d+d,Zd5 fd-d.ZdAd0d1ZdBd3d4Z  ZS )Cr	   a  
    Efficient data structure for manipulating HTTP headers.

    A :class:`list` of ``(name, values)`` is inefficient for lookups.

    A :class:`dict` doesn't suffice because header names are case-insensitive
    and multiple occurrences of headers with the same name are possible.

    :class:`Headers` stores HTTP headers in a hybrid data structure to provide
    efficient insertions and lookups while preserving the original data.

    In order to account for multiple values with minimal hassle,
    :class:`Headers` follows this logic:

    - When getting a header with ``headers[name]``:
        - if there's no value, :exc:`KeyError` is raised;
        - if there's exactly one value, it's returned;
        - if there's more than one value, :exc:`MultipleValuesError` is raised.

    - When setting a header with ``headers[name] = value``, the value is
      appended to the list of values for that header.

    - When deleting a header with ``del headers[name]``, all values for that
      header are removed (this is slow).

    Other methods for manipulating headers are consistent with this logic.

    As long as no header occurs multiple times, :class:`Headers` behaves like
    :class:`dict`, except keys are lower-cased to provide case-insensitivity.

    Two methods support manipulating multiple values explicitly:

    - :meth:`get_all` returns a list of all values for a header;
    - :meth:`raw_items` returns an iterator of ``(name, values)`` pairs.

    _dict_listr   r
   kwargsr   r   Nonec                 O  s    i | _ g | _| j|i | d S N)r!   r"   updater   r   r#   r   r   r   __init__D   s   zHeaders.__init__c                 C  s   d dd | jD d S )N c                 s  s$    | ]\}}| d | dV  qdS )z: 
Nr   ).0keyvaluer   r   r   	<genexpr>J   s   " z"Headers.__str__.<locals>.<genexpr>r*   )joinr"   r   r   r   r   r   I   s   zHeaders.__str__c                 C  s   | j j d| jdS )N())r   r   r"   r   r   r   r   __repr__L   s   zHeaders.__repr__c                 C  s$   |   }| j |_| j |_|S r%   )r   r!   copyr"   )r   r3   r   r   r   r3   O   s   zHeaders.copybytesc                 C  s   t |  S r%   )r   encoder   r   r   r   	serializeU   s   zHeaders.serializer,   objectboolc                 C  s   t |to| | jv S r%   )
isinstancer   lowerr!   r   r,   r   r   r   __contains__[   s   zHeaders.__contains__Iterator[str]c                 C  
   t | jS r%   )iterr!   r   r   r   r   __iter__^      
zHeaders.__iter__intc                 C  r>   r%   )r   r!   r   r   r   r   __len__a   rA   zHeaders.__len__c                 C  s*   | j |  }t|dkr|d S t|r   )r!   r:   r   r   r   r,   r-   r   r   r   __getitem__f   s   zHeaders.__getitem__r-   c                 C  s,   | j | g | | j||f d S r%   )r!   
setdefaultr:   appendr"   rD   r   r   r   __setitem__m   s   zHeaders.__setitem__c                   s.   |   | j   fdd| jD | _d S )Nc                   s$   g | ]\}}|   kr||fqS r   )r:   )r+   kv	key_lowerr   r   
<listcomp>u   s   $ z'Headers.__delitem__.<locals>.<listcomp>)r:   r!   __delitem__r"   r;   r   rK   r   rN   q   s   zHeaders.__delitem__otherr   c                 C  s   t |tstS | j|jkS r%   )r9   r	   NotImplementedr!   )r   rO   r   r   r   __eq__w   s   
zHeaders.__eq__c                 C  s   i | _ g | _dS )z&
        Remove all headers.

        N)r!   r"   r   r   r   r   clear|   s   
zHeaders.clearc                   s(   t dd |D }t j|i | dS )zT
        Update from a :class:`Headers` instance and/or keyword arguments.

        c                 s  s&    | ]}t |tr| n|V  qd S r%   )r9   r	   	raw_items)r+   argr   r   r   r.      s    
z!Headers.update.<locals>.<genexpr>N)tupler   r&   r'   r   r   r   r&      s   zHeaders.update	list[str]c                 C  s   | j | g S )z|
        Return the (possibly empty) list of all values for a header.

        Args:
            key: Header name.

        )r!   getr:   r;   r   r   r   get_all   s   zHeaders.get_allIterator[tuple[str, str]]c                 C  r>   )zO
        Return an iterator of all values as ``(name, value)`` pairs.

        )r?   r"   r   r   r   r   rS      s   
zHeaders.raw_items)r   r
   r#   r   r   r$   r   )r   r	   )r   r4   )r,   r7   r   r8   )r   r=   )r   rB   r,   r   r   r   )r,   r   r-   r   r   r$   )r,   r   r   r$   )rO   r   r   r8   )r   r$   )r,   r   r   rV   )r   rY   )r   r   r   r   	__slots__r(   r   r2   r3   r6   r<   r@   rC   rE   rH   rN   rQ   rR   r&   rX   rS   r    r   r   r   r   r	      s&    %














r	   c                   @  s$   e Zd ZdZdddZddd	Zd
S )SupportsKeysAndGetItemz_
    Dict-like types with ``keys() -> str`` and ``__getitem__(key: str) -> str`` methods.

    r   Iterable[str]c                 C     d S r%   r   r   r   r   r   keys       zSupportsKeysAndGetItem.keysr,   r   c                 C  r^   r%   r   r;   r   r   r   rE      r`   z"SupportsKeysAndGetItem.__getitem__N)r   r]   rZ   )r   r   r   r   r_   rE   r   r   r   r   r\      s    
r\   N)
__future__r   collections.abcr   r   r   r   typingr   r   __all__LookupErrorr   r   r	   r\   rU   r
   r   r   r   r   <module>   s     	"