o
    di	                  	   @   s   d dl 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
 ddlmZmZ ed	Zd
edee dee fddZdee d
edeee  fddZdee dee deee ee f fddZdS )    N)AsyncIterable)TypeVar)maybe_await   )iter)islice)AnyIterable	PredicateTniterablereturnc                    s,   | dk r	t ddd t|| 2 I dH S )a	  
    Return the first n items of iterable as a list.

    If there are too few items in iterable, all of them are returned.
    n needs to be at least 0. If it is 0, an empty list is returned.

    Example::

        first_two = await take(2, [1, 2, 3, 4, 5])

    r   z(take's first parameter can't be negativec                    s   g | z3 d H W }|q6 S N ).0itemr   r   O/home/ubuntu/.local/lib/python3.10/site-packages/aioitertools/more_itertools.py
<listcomp>    s    ztake.<locals>.<listcomp>N)
ValueErrorr   )r   r   r   r   r   take   s   r   c                 C  sH   t | }t||I dH }|g kr"|V  t||I dH }|g ksdS dS )a#  
    Break iterable into chunks of length n.

    The last chunk will be shorter if the total number of items is not
    divisible by n.

    Example::

        async for chunk in chunked([1, 2, 3, 4, 5], n=2):
            ...  # first iteration: chunk == [1, 2]; last one: chunk == [5]
    N)r   r   )r   r   itchunkr   r   r   chunked#   s   r   	predicatec                    s@   t | t   fdd} fdd}| | fS )a  
    A variant of :func:`aioitertools.takewhile` that allows complete access to the
    remainder of the iterator.

         >>> it = iter('ABCdEfGhI')
         >>> all_upper, remainder = await before_and_after(str.isupper, it)
         >>> ''.join([char async for char in all_upper])
         'ABC'
         >>> ''.join([char async for char in remainder])
         'dEfGhI'

    Note that the first iterator must be fully consumed before the second
    iterator can generate valid results.
    c                    sL    2 z3 d H W } t | I d H r| V  q|   d S 6 t d S r   )r   
set_resultset_exceptionStopAsyncIteration)elemr   r   
transitionr   r   true_iteratorL   s   
z'before_and_after.<locals>.true_iteratorc                    sF   zI d H V  W n
 t y   Y d S w  2 z	3 d H W } | V  q6 d S r   )r   )elm)r   r   r   r   remainder_iteratorV   s   z,before_and_after.<locals>.remainder_iterator)r   asyncioget_event_loopcreate_future)r   r   r    r"   r   r   r   before_and_after6   s   
	r&   )r#   collections.abcr   typingr   aioitertools.helpersr   builtinsr   	itertoolsr   typesr   r	   r
   intlistr   r   tupler&   r   r   r   r   <module>   s"   "