Edit File: enum.cpython-36.pyc
3 \F� � @ s> d dl Z d dlmZmZ d dlmZ d dlmZ yd dl m Z W n e k r` d dl m Z Y nX dddd d d d gZ d d� Zdd� Zdd� Zdd� Ze� ZG dd � d �ZG dd� de�ZdZG dd� de�ZG dd� ded�ZG dd� dee�Zd d � Z G d d � d e�Z G d d � d ee �Z d d!� Z d"d � Z d#d$� Z!d%d&� Z"dS )'� N)�MappingProxyType�DynamicClassAttribute)�reduce)�or_)� OrderedDict�EnumMeta�Enum�IntEnum�Flag�IntFlag�auto�uniquec C s t | d�p t | d�p t | d�S )z5Returns True if obj is a descriptor, False otherwise.�__get__�__set__� __delete__)�hasattr)�obj� r � /usr/lib64/python3.6/enum.py�_is_descriptor s r c C sT | dd� | dd� ko"dkn oR| dd� dkoR| dd � dkoRt | �dkS ) z3Returns True if a __dunder__ name, False otherwise.N� �__� �_� ������r )�len)�namer r r � _is_dunder s (r c C sL | d | d kodkn oJ| dd� dkoJ| dd� dkoJt | �dkS )z1Returns True if a _sunder_ name, False otherwise.r � r r ���r r! )r )r r r r � _is_sunder$ s r" c C s dd� }|| _ d| _dS )z"Make the given class un-picklable.c S s t d| ��d S )Nz%r cannot be pickled)� TypeError)�self�protor r r �_break_on_call_reduce- s z6_make_class_unpicklable.<locals>._break_on_call_reducez <unknown>N)� __reduce_ex__� __module__)�clsr& r r r �_make_class_unpicklable+ s r* c @ s e Zd ZdZeZdS )r zP Instances are replaced with an appropriate value in Enum class suites. N)�__name__r( � __qualname__�__doc__� _auto_null�valuer r r r r 3 s c s, e Zd ZdZ� fdd�Z� fdd�Z� ZS )� _EnumDictz�Track enum member order and ensure member names are not reused. EnumMeta will use the names found in self._member_names as the enumeration member names. c s t � j� g | _g | _d S )N)�super�__init__� _member_names� _last_values)r$ )� __class__r r r2 A s z_EnumDict.__init__c s� t |�r.|d krtd��|dkr�t| d|� n�t|�rD|dkr�d}n�|| jkr\td| ��nxt|�s�|| kr�td || | f ��t|t�r�|j t kr�| j |d t | j�| j d d � �|_ |j }| jj|� | j j|� t� j||� d S ) z�Changes anything not dundered or not a descriptor. If an enum member name is used twice, an error is raised; duplicate values are not checked for. Single underscore (sunder) names are reserved. �_order_�_create_pseudo_member_�_generate_next_value_� _missing_z(_names_ are reserved for future Enum use�_generate_next_value� __order__zAttempted to reuse key: %rz%r already defined as: %rr N)r6 r7 r8 r9 )r" � ValueError�setattrr r3 r# r � isinstancer r/ r. r: r r4 �appendr1 � __setitem__)r$ �keyr/ )r5 r r r@ F s, " z_EnumDict.__setitem__)r+ r( r, r- r2 r@ � __classcell__r r )r5 r r0 : s r0 c s� e Zd ZdZedd� �Z� fdd�Zdd� Zd)dddd d �d d �Zd d� Z � fdd�Z dd� Z dd� Z dd� Z dd� Zdd� Zedd � �Zd d � Zd d � Z� fd!d"�Zdddd d �d#d$�Zed%d&� �Zed'd(� �Z� ZS )*r zMetaclass for Enumc C s0 t � }| j|�\}}|d k r,t|dd �|d< |S )Nr8 )r0 � _get_mixins_�getattr)�metaclsr) �bases� enum_dict� member_type� first_enumr r r � __prepare__r s zEnumMeta.__prepare__c s� | j |�\�}| j� �|�\}}}� fdd�� jD �}x� jD ] } � | = q>W � jdd �} t|�dh@ } | r~tdjdj| ����d� kr�d� d< t� j | ||� �} g | _ t � | _ �| _ d d � | j� D �} i | _d � k�r�tk �rd}t�fdd�|D ���st| � �x6� jD �]*}|| }t|t��s0|f}n|}�tk�rD|f}|�sf|| �}t|d��s�||_n6|| f|�� }t|d��s��tk�r�||_n �|� |_|j}||_| |_|j|� x8| j j� D ] \} }|j|jk�r�|}P �q�W | j j|� || k�rt | ||� || j |< y|| j|< W n t k �r6 Y nX �qW xPdD ]H} t | | �}t �| d �}t || d �}|d k �rD||k�rDt | | |� �qDW t d k �r�|�r�|| _ t j | _ | d k �r�t| t!��r�| j"dd�j#� } | | j k�r�t d��| S )Nc s i | ]}� | |�qS r r )�.0�k)� classdictr r � <dictcomp>� s z$EnumMeta.__new__.<locals>.<dictcomp>r6 �mroz Invalid enum member name: {0}�,r- zAn enumeration.c S s. h | ]&}|j j� D ]\}}t|t�r|�qqS r )�__dict__�itemsr> r )rK �crL �vr r r � <setcomp>� s z#EnumMeta.__new__.<locals>.<setcomp>r' �__getnewargs_ex__�__getnewargs__� __reduce__c 3 s | ]}|� j kV qd S )N)rQ )rK �m)rH r r � <genexpr>� s z#EnumMeta.__new__.<locals>.<genexpr>�_value_�__repr__�__str__� __format__� z#member order does not match _order_)rV rW r' rX )r\ r] r^ r' )$rC � _find_new_r3 �pop�setr< �format�joinr1 �__new__�_member_names_r � _member_map_� _member_type_rO �_value2member_map_�object�anyr* r> �tupler r[ �_name_� __objclass__r2 rR r? r= r# rD r �__new_member__�str�replace�split)rE r) rF rM rI re �save_new�use_args� enum_membersr r6 � invalid_names� enum_class�dynamic_attributes�methods� member_namer/ �args� enum_member�canonical_member� class_method� obj_method� enum_method)r5 )rM rH r re | s� zEnumMeta.__new__c C s dS )z6 classes/types should always be True. Tr )r$ r r r �__bool__ s zEnumMeta.__bool__Nr )�module�qualname�type�startc C s* |dkr| j | |�S | j||||||d�S )a Either returns an existing member, or creates a new enum class. This method is used both when an enum class is given a value to match to an enumeration member (i.e. Color(3)) and for the functional API (i.e. Color = Enum('Color', names='RED GREEN BLUE')). When used for the functional API: `value` will be the name of the new class. `names` should be either a string of white-space/comma delimited names (values will start at `start`), or an iterator/mapping of name, value pairs. `module` should be set to the module this class is being created in; if it is not set, an attempt to find that module will be made, but if it fails the class will not be picklable. `qualname` should be set to the actual location this class can be found at in its module; by default it is set to the global scope. If this is not correct, unpickling will fail in some circumstances. `type`, if set, will be mixed in as the first base class. N)r� r� r� r� )re �_create_)r) r/ �namesr� r� r� r� r r r �__call__ s zEnumMeta.__call__c C s t || �o|j| jkS )N)r> rm rg )r) �memberr r r � __contains__) s zEnumMeta.__contains__c s( || j krtd| j ��t� j|� d S )Nz %s: cannot delete Enum member.)rg �AttributeErrorr+ r1 � __delattr__)r) �attr)r5 r r r� , s zEnumMeta.__delattr__c C s ddddg| j S )Nr5 r- � __members__r( )rf )r$ r r r �__dir__4 s zEnumMeta.__dir__c C s> t |�rt|��y | j| S tk r8 t|�d�Y nX dS )a5 Return the enum member matching `name` We use __getattr__ instead of descriptors or inserting into the enum class' __dict__ in order to support `name` and `value` being both properties for enum members (which live in the class' __dict__) and enum members themselves. N)r r� rg �KeyError)r) r r r r � __getattr__8 s zEnumMeta.__getattr__c C s | j | S )N)rg )r) r r r r � __getitem__H s zEnumMeta.__getitem__c s � fdd�� j D �S )Nc 3 s | ]}� j | V qd S )N)rg )rK r )r) r r rZ L s z$EnumMeta.__iter__.<locals>.<genexpr>)rf )r) r )r) r �__iter__K s zEnumMeta.__iter__c C s t | j�S )N)r rf )r) r r r �__len__N s zEnumMeta.__len__c C s t | j�S )z�Returns a mapping of member name->value. This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping. )r rg )r) r r r r� Q s zEnumMeta.__members__c C s d| j S )Nz <enum %r>)r+ )r) r r r r\ [ s zEnumMeta.__repr__c s � fdd�t � j�D �S )Nc 3 s | ]}� j | V qd S )N)rg )rK r )r) r r rZ _ s z(EnumMeta.__reversed__.<locals>.<genexpr>)�reversedrf )r) r )r) r � __reversed__^ s zEnumMeta.__reversed__c s0 | j jdi �}||kr td��t� j||� dS )z�Block attempts to reassign Enum members. A simple assignment to the class namespace only changes one of the several possible ways to get an Enum member from the Enum class, resulting in an inconsistent Enumeration. rg zCannot reassign members.N)rQ �getr� r1 � __setattr__)r) r r/ � member_map)r5 r r r� a s zEnumMeta.__setattr__c C s� | j }|dkr| fn|| f}| j|�\} } |j||�} t|t�rP|jdd�j� }t|ttf�r�|r�t|d t�r�|g } }g } xDt | �D ]8\}}| j |||| dd� �}| j |� |j ||f� q�W x6|D ].}t|t�r�||| }}n|\}}|| |< q�W |j |||| �}|dk�rTyt jd�jd }W n( ttfk �rR } zW Y dd}~X nX |dk�rht|� n||_|dk �r~||_|S )a� Convenience method to create a new Enum class. `names` can be: * A string containing member names, separated either with spaces or commas. Values are incremented by 1 from `start`. * An iterable of member names. Values are incremented by 1 from `start`. * An iterable of (member name, value) pairs. * A mapping of member name -> value pairs. NrP r_ r r r+ )r5 rC rJ r> rp rq rr rl �list� enumerater8 r? re �sys� _getframe� f_globalsr� r< r* r( r, )r) � class_namer� r� r� r� r� rE rF r rI rM �original_names� last_values�countr r/ �itemrz � member_valuerw �excr r r r� n s< zEnumMeta._create_c C s� | s t tfS d }}x,| D ]$}|tk rt|t�r|jrtd��qW t|t�sTtd��t| d t�st| d }| d }n8x6| d jD ](}t|t�r�|dkr�|}q�|dkr�|}q�W ||fS )z�Returns the type for creating enum members, and the first inherited enum class. bases: the tuple of bases that was given to __new__ NzCannot extend enumerationszHnew enumerations must be created as `ClassName([mixin_type,] enum_type)`r r r! )rj r � issubclassrf r# �__mro__)rF rH rI �baser r r rC � s( zEnumMeta._get_mixins_c C s� | j dd�}|dk }|dkrtxVdD ]H}x8||fD ],}t||d�}|ddjtjtjhkr0|}P q0W |dk r"P q"W tj}|tjkr�d}nd}|||fS )a Returns the __new__ to be used for creating the enum members. classdict: the class dictionary given to __new__ member_type: the data type whose __new__ will be used by default first_enum: enumeration to check for an overriding __new__ re Nro FT)ro re )r� rD re rj r ) rM rH rI re rs �method�possible�targetrt r r r r` � s( zEnumMeta._find_new_)N)r+ r( r, r- � classmethodrJ re r� r� r� r� r� r� r� r� r� �propertyr� r\ r� r� r� � staticmethodrC r` rB r r )r5 r r p s( 5 -c @ s� e Zd ZdZdd� Zdd� Zedd� �Zdd � Zd d � Z d d � Z dd� Z dd� Z dd� Z edd� �Zedd� �Zeddd��ZdS ) r zRGeneric enumeration. Derive from this class to define new enumerations. c C sj t |�| kr|S y|| jkr&| j| S W n6 tk r^ x | jj� D ]}|j|krD|S qDW Y nX | j|�S )N)r� ri r# rg �valuesr[ r9 )r) r/ r� r r r re s z Enum.__new__c C s8 x2t |�D ]"}y|d S tk r* Y q X q W |S d S )Nr )r� r# )r r� r� r� � last_valuer r r r8 s zEnum._generate_next_value_c C s t d|| jf ��d S )Nz%r is not a valid %s)r< r+ )r) r/ r r r r9 " s zEnum._missing_c C s d| j j| j| jf S )Nz <%s.%s: %r>)r5 r+ rm r[ )r$ r r r r\ & s z Enum.__repr__c C s d| j j| jf S )Nz%s.%s)r5 r+ rm )r$ r r r r] * s z Enum.__str__c s& � fdd�� j j� D �}dddg| S )Nc s2 g | ]*}|j D ] }|d dkr|� jkr|�qqS )r r )rQ rg )rK r) rY )r$ r r � <listcomp>/ s z Enum.__dir__.<locals>.<listcomp>r5 r- r( )r5 rO )r$ �added_behaviorr )r$ r r� - s z Enum.__dir__c C s0 | j tkrt}t| �}n | j }| j}|j||�S )N)rh rj rp r[ r^ )r$ � format_specr) �valr r r r^ 6 s zEnum.__format__c C s t | j�S )N)�hashrm )r$ r r r �__hash__E s z Enum.__hash__c C s | j | jffS )N)r5 r[ )r$ r% r r r r' H s zEnum.__reduce_ex__c C s | j S )z The name of the Enum member.)rm )r$ r r r r R s z Enum.namec C s | j S )z The value of the Enum member.)r[ )r$ r r r r/ W s z Enum.valueNc s� t tj| �}�r t ���n|�� �fdd��j� D �}y|jdd� d� W n$ tk rp |jdd� d� Y nX | |||d�} t| _|j| j � | ||< | S )z[ Create a new Enum subclass that replaces a collection of global constants c s g | ]}� |�r|�| f�qS r r )rK r )�filter�sourcer r r� q s z!Enum._convert.<locals>.<listcomp>c S s | d | d fS )Nr r r )�tr r r �<lambda>v s z Enum._convert.<locals>.<lambda>)rA c S s | d S )Nr r )r� r r r r� y s )r� ) �varsr� �modules�keys�sortr# �_reduce_ex_by_namer' �updater� )r) r r� r� r� �module_globals�membersr )r� r� r �_convert\ s z Enum._convert)N)r+ r( r, r- re r8 r� r9 r\ r] r� r^ r� r' r r r/ r� r r r r r � s )� metaclassc @ s e Zd ZdZdS )r z.Enum where members are also (and must be) intsN)r+ r( r, r- r r r r r � s c C s | j S )N)r )r$ r% r r r r� � s r� c @ sp e Zd ZdZdd� Zedd� �Zedd� �Zdd � Zd d � Z d d � Z dd� Z dd� Z dd� Z dd� Zdd� ZdS )r zSupport for flagsc C sd |s|dk r|S dS xBt |�D ]6}yt|�}P W q tk rR td| �d�Y q X q W d|d S )z� Generate the next value when not given. name: the name of the member start: the initital start value or None count: the number of existing members last_value: the last value assigned or None Nr zInvalid Flag value: %rr )r� � _high_bit� Exceptionr# )r r� r� r� r� �high_bitr r r r8 � s zFlag._generate_next_value_c C s. |}|dk r| }| j |�}|dk r*| }|S )Nr )r7 )r) r/ �original_value�possible_memberr r r r9 � s zFlag._missing_c C sb | j j|d�}|dkr^t| |�\}}|r:td|| jf ��tj| �}d|_||_| j j ||�}|S )zL Create a composite member iff value contains only members. Nz%r is not a valid %s) ri r� � _decomposer< r+ rj re rm r[ � setdefault)r) r/ � pseudo_memberr � extra_flagsr r r r7 � s zFlag._create_pseudo_member_c C s" t || j�stS |j| j@ |jkS )N)r> r5 �NotImplementedr[ )r$ �otherr r r r� � s zFlag.__contains__c C sV | j }| jd k r$d|j| j| jf S t|| j�\}}d|jdjdd� |D ��| jf S )Nz <%s.%s: %r>�|c S s g | ]}t |jp|j��qS r )rp rm r[ )rK rY r r r r� � s z!Flag.__repr__.<locals>.<listcomp>)r5 rm r+ r[ r� rd )r$ r) r� � uncoveredr r r r\ � s z Flag.__repr__c C s� | j }| jd k r d|j| jf S t|| j�\}}t|�dkr^|d jd kr^d|j|d jf S d|jdjdd� |D ��f S d S )Nz%s.%sr r z%s.%rr� c S s g | ]}t |jp|j��qS r )rp rm r[ )rK rY r r r r� � s z Flag.__str__.<locals>.<listcomp>)r5 rm r+ r� r[ r rd )r$ r) r� r� r r r r] � s z Flag.__str__c C s t | j�S )N)�boolr[ )r$ r r r r� � s z Flag.__bool__c C s" t || j�stS | j| j|jB �S )N)r> r5 r� r[ )r$ r� r r r �__or__� s z Flag.__or__c C s" t || j�stS | j| j|j@ �S )N)r> r5 r� r[ )r$ r� r r r �__and__� s z Flag.__and__c C s" t || j�stS | j| j|jA �S )N)r> r5 r� r[ )r$ r� r r r �__xor__� s z Flag.__xor__c sD t �j�j�\� }� �fdd��jD �}tt|�jd��}�j|�S )Nc s& g | ] }|� kr|j �j @ r|�qS r )r[ )rK rY )r� r$ r r r� � s z#Flag.__invert__.<locals>.<listcomp>r )r� r5 r[ r �_or_)r$ r� �inverted_members�invertedr )r� r$ r � __invert__� s zFlag.__invert__N)r+ r( r, r- r8 r� r9 r7 r� r\ r] r� r� r� r� r� r r r r r � s c @ sT e Zd ZdZedd� �Zedd� �Zdd� Zdd � Zd d � Z eZ eZ e Z d d � Z dS )r z Support for integer-based Flagsc C s* t |t�s td|| jf ��| j|�}|S )Nz%r is not a valid %s)r> �intr< r+ r7 )r) r/ � new_memberr r r r9 � s zIntFlag._missing_c C s� | j j|d �}|d kr�|g}t| |�\}}xL|rvt|�}d| }|| j kr\||kr\|j|� || krld}q,||N }q,W x6t|�D ]*}tj| |�}d |_||_ | j j ||�}q�W |S )Nr r ) ri r� r� r� r? r� r� re rm r[ r� )r) r/ r� �need_to_creater r� �bit� flag_valuer r r r7 � s& z IntFlag._create_pseudo_member_c C s0 t || jtf�stS | j| j| j|�jB �}|S )N)r> r5 r� r� r[ )r$ r� �resultr r r r� s zIntFlag.__or__c C s, t || jtf�stS | j| j| j|�j@ �S )N)r> r5 r� r� r[ )r$ r� r r r r� # s zIntFlag.__and__c C s, t || jtf�stS | j| j| j|�jA �S )N)r> r5 r� r� r[ )r$ r� r r r r� ( s zIntFlag.__xor__c C s | j | j �}|S )N)r5 r[ )r$ r� r r r r� 1 s zIntFlag.__invert__N)r+ r( r, r- r� r9 r7 r� r� r� �__ror__�__rand__�__rxor__r� r r r r r � s c C s | j � d S )z@returns index of highest bit, or -1 if value is zero or negativer )� bit_length)r/ r r r r� 6 s r� c C sb g }x0| j j� D ]"\}}||jkr|j||jf� qW |r^djdd� |D ��}td| |f ��| S )z?Class decorator for enumerations ensuring unique member values.z, c S s g | ]\}}d ||f �qS )z%s -> %sr )rK �aliasr r r r r� B s zunique.<locals>.<listcomp>z duplicate values found in %r: %s)r� rR r r? rd r< )� enumeration� duplicatesr r� � alias_detailsr r r r : s c C s� |}|dk }|r*dd� t | jj� �D �}ndd� t | jj� �D �}g }x4|D ],\}}|rL||@ |krL|j|� || M }qLW | r�|| jkr�|j| j| � |jdd� dd� t|�d kr�|d j|kr�|jd� ||fS ) z#Extract all members from the value.r c S s" g | ]\}}|j d k r||f�qS )N)r )rK rT rY r r r r� R s z _decompose.<locals>.<listcomp>c S s* g | ]"\}}|j d k s t|�r||f�qS )N)r � _power_of_two)rK rT rY r r r r� Y s c S s | j S )N)r[ )rY r r r r� d s z _decompose.<locals>.<lambda>T)rA �reverser )r� ri rR r? r� r r/ ra )�flagr/ � not_covered�negative�flags_to_checkr� r� r� r r r r� G s$ r� c C s | dk r dS | dt | � kS )Nr Fr )r� )r/ r r r r� j s r� )#r� �typesr r � functoolsr �operatorr r� � _collectionsr � ImportError� collections�__all__r r r" r* rj r. r �dictr0 r r� r r� r r� r r r� r r� r� r r r r �<module> s@ 3 mA #
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