a
    یxdj                     @  s   d dl mZ d dlZd dlmZmZmZmZmZm	Z	m
Z
mZmZ ejdd dkr`d dlmZ ne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ef eeeef  ef ZdS )    )annotationsN)	AnyDictIterableIteratorListMappingMutableMappingTupleUnion   )      )Protocol)HeadersHeadersLikeMultipleValuesErrorc                      s&   e Zd ZdZdd fddZ  ZS )r   zT
    Exception raised when :class:`Headers` has more than one value for a key.

    strreturnc                   s&   t | jdkrt| jd S t  S N   r   )lenargsreprsuper__str__self	__class__ Q/var/www/html/Ranjet/env/lib/python3.9/site-packages/websockets/datastructures.pyr       s    zMultipleValuesError.__str__)__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dddddd	Zdd
ddZdd
ddZd d
ddZdd
ddZ	dddddZ
dd
ddZdd
ddZddddd Zdddd!d"d#Zdddd$d%Zd&dd'd(d)Zdd
d*d+Zdddd fd,d-Zdd.dd/d0Zd1d
d2d3Z  ZS )4r   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   None)r   kwargsr   c                 O  s    i | _ g | _| j|i | d S N)r(   r)   updater   r   r+   r!   r!   r"   __init__P   s    zHeaders.__init__r   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>V       z"Headers.__str__.<locals>.<genexpr>r1   )joinr)   r   r!   r!   r"   r   U   s    zHeaders.__str__c                 C  s   | j j d| jdS )N())r    r#   r)   r   r!   r!   r"   __repr__X   s    zHeaders.__repr__c                 C  s$   |   }| j |_| j |_|S r,   )r    r(   copyr)   )r   r;   r!   r!   r"   r;   [   s    zHeaders.copybytesc                 C  s   t |  S r,   )r   encoder   r!   r!   r"   	serializea   s    zHeaders.serializeobjectboolr3   r   c                 C  s   t |to| | jv S r,   )
isinstancer   lowerr(   r   r3   r!   r!   r"   __contains__g   s    zHeaders.__contains__zIterator[str]c                 C  s
   t | jS r,   )iterr(   r   r!   r!   r"   __iter__j   s    zHeaders.__iter__intc                 C  s
   t | jS r,   )r   r(   r   r!   r!   r"   __len__m   s    zHeaders.__len__c                 C  s.   | j |  }t|dkr"|d S t|d S r   )r(   rC   r   r   r   r3   r4   r!   r!   r"   __getitem__r   s    zHeaders.__getitem__)r3   r4   r   c                 C  s,   | j | g | | j||f d S r,   )r(   
setdefaultrC   appendr)   rJ   r!   r!   r"   __setitem__y   s    zHeaders.__setitem__c                   s.   |   | j   fdd| jD | _d S )Nc                   s$   g | ]\}}|   kr||fqS r!   )rC   )r2   kv	key_lowerr!   r"   
<listcomp>   r6   z'Headers.__delitem__.<locals>.<listcomp>)rC   r(   __delitem__r)   rD   r!   rQ   r"   rT   }   s    zHeaders.__delitem__r   )otherr   c                 C  s   t |tstS | j|jkS r,   )rB   r   NotImplementedr(   )r   rU   r!   r!   r"   __eq__   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,   )rB   r   	raw_items)r2   argr!   r!   r"   r5      s   z!Headers.update.<locals>.<genexpr>N)tupler   r-   r.   r   r!   r"   r-      s    zHeaders.updatez	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(   getrC   rD   r!   r!   r"   get_all   s    zHeaders.get_allzIterator[Tuple[str, str]]c                 C  s
   t | jS )zO
        Return an iterator of all values as ``(name, value)`` pairs.

        )rF   r)   r   r!   r!   r"   rY      s    zHeaders.raw_items)r#   r$   r%   r&   	__slots__r/   r   r:   r;   r>   rE   rG   rI   rK   rN   rT   rW   rX   r-   r]   rY   r'   r!   r!   r   r"   r   '   s$   %
r   c                   @  s.   e Zd ZdZddddZddddd	Zd
S )SupportsKeysAndGetItemz_
    Dict-like types with ``keys() -> str`` and ``__getitem__(key: str) -> str`` methods.

    zIterable[str]r   c                 C  s   d S r,   r!   r   r!   r!   r"   keys   s    zSupportsKeysAndGetItem.keysr   rA   c                 C  s   d S r,   r!   rD   r!   r!   r"   rK      s    z"SupportsKeysAndGetItem.__getitem__N)r#   r$   r%   r&   r`   rK   r!   r!   r!   r"   r_      s   r_   )
__future__r   systypingr   r   r   r   r   r   r	   r
   r   version_infor   r?   __all__LookupErrorr   r   r   r_   r   r!   r!   r!   r"   <module>   s$   , 	
