File: //usr/lib/python3.7/__pycache__/dataclasses.cpython-37.pyc
B
{a| @ s d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dlZdddddddd d
d d d
g Z G dd de
Z G dd dZ e Z
G dd dZe Zei ZG dd dZedZedZedZdZdZdZe dZG d d d eZ G d d de d Z G d d dZ G d!d" d"Z eed#d#dd#dd$d%dZ d&d' Z!d(d) Z"dded*d+d,Z#d-d. Z$d/d0 Z%d1d2 Z&d3d4 Z'd5d6 Z(d7d8 Z)d9d: Z*d;d< Z+d=d> Z,d?d@ Z-dAdB Z.dCdD Z/dEdF Z0dGdH Z1dIdJ Z2dKdL Z3dddde1de2de2e3e2e3e2e3e2e3dMZ4dNdO Z5dcd#d#d#dPdPdPdQdRdZ6dSd Z7dTdU Z8dVd
Z9e:dWdXd Z;dYdZ Z<e=d[d\d
Z>d]d^ Z?d_dd#d#d#dPdPdPd`dad Z@dbd ZAdS )d N dataclassfieldFieldFrozenInstanceErrorInitVarMISSINGfieldsasdictastuplemake_dataclassreplace is_dataclassc @ s e Zd ZdS )r N)__name__
__module__ __qualname__ r r !/usr/lib/python3.7/dataclasses.pyr s c @ s e Zd Zdd ZdS )_HAS_DEFAULT_FACTORY_CLASSc C s dS )Nz <factory>r )selfr r r __repr__ s z#_HAS_DEFAULT_FACTORY_CLASS.__repr__N)r r r r r r r r r s r c @ s e Zd ZdS )
_MISSING_TYPEN)r r r r r r r r s r c @ s e Zd Zdd Zdd ZdS ) _FIELD_BASEc C s
|| _ d S )N)name)r r r r r __init__ s z_FIELD_BASE.__init__c C s | j S )N)r )r r r r r s z_FIELD_BASE.__repr__N)r r r r r r r r r r s r _FIELD_FIELD_CLASSVAR_FIELD_INITVARZ__dataclass_fields__Z__dataclass_params__Z
__post_init__z^(?:\s*(\w+)\s*\.)?\s*(\w+)c @ s e Zd Zdd ZdS ) _InitVarMetac C s | S )Nr )r Zparamsr r r __getitem__ s z_InitVarMeta.__getitem__N)r r r r r r r r r s r c @ s e Zd ZdS )r N)r r r r r r r r s ) metaclassc @ s( e Zd ZdZdd Zdd Zdd ZdS ) r )
r typedefaultdefault_factoryreprhashinitcomparemetadata _field_typec C sR d | _ d | _|| _|| _|| _|| _|| _|| _|d kr<tnt
|| _ d | _ d S )N)
r r r! r" r% r# r$ r& _EMPTY_METADATAtypesMappingProxyTyper' r( )r r! r" r% r# r$ r& r' r r r r s zField.__init__c C sV d| j d| jd| jd| jd| jd| jd| jd| jd | jd
| j d S ) Nz Field(name=z,type=z ,default=z,default_factory=z,init=z,repr=z,hash=z ,compare=z
,metadata=z
,_field_type=))
r r r! r" r% r# r$ r& r' r( )r r r r r s zField.__repr__c C s( t t| jdd }|r$|| j|| d S )N __set_name__)getattrr r! )r ownerr funcr r r r- s zField.__set_name__N)r r r __slots__r r r- r r r r r s c @ s e Zd ZdZdd Zdd ZdS )_DataclassParams)r% r# eqorder unsafe_hashfrozenc C s( || _ || _|| _|| _|| _|| _d S )N)r% r# r3 r4 r5 r6 )r r% r# r3 r4 r5 r6 r r r r s z_DataclassParams.__init__c
C s6 d| j d| jd| jd| jd| jd| jd
S )Nz_DataclassParams(init=z,repr=z,eq=z,order=z
,unsafe_hash=z,frozen=r, )r% r# r3 r4 r5 r6 )r r r r r ' s z_DataclassParams.__repr__N)r r r r1 r r r r r r r2 s r2 T)r! r" r% r# r$ r& r' c C s, | t k r|t k rtdt| ||||||S )a Return an object to identify dataclass fields.
default is the default value of the field. default_factory is a
0-argument function called to initialize a field's value. If init
is True, the field will be a parameter to the class's __init__()
function. If repr is True, the field will be included in the
object's repr(). If hash is True, the field will be included in
the object's hash(). If compare is True, the field will be used
in comparison functions. metadata, if specified, must be a
mapping which is stored but not otherwise examined by dataclass.
It is an error to specify both default and default_factory.
z/cannot specify both default and default_factory)r
ValueErrorr )r! r" r% r# r$ r& r' r r r r 5 s c s( |sdS dd fdd|D dS )Nz()(,c s g | ]} d |j qS ).)r ).0f)obj_namer r
<listcomp>T s z _tuple_str.<locals>.<listcomp>z,))join)r= r r )r= r
_tuple_strK s r@ c s" t t fdd}|S )Nc sD t | t f}| kr dS | z | }W d | X |S )Nz...)id_thread get_identadddiscard)r keyresult) repr_running
user_functionr r wrapper^ s
z _recursive_repr.<locals>.wrapper)set functoolswraps)rI rJ r )rH rI r _recursive_reprY s rN )globalslocals return_typec C s |d kr i }|d k r$d|kr$t |d< d}|tk r<||d< d}d|}ddd |D }d | d
| d | d | }t||| || S )
N __builtins__ Z _return_typez->_return_typer9
c s s | ]}d | V qdS ) Nr )r; br r r <genexpr>} s z _create_fn.<locals>.<genexpr>zdef r8 r, z:
)builtinsr r? exec)r argsZbodyrO rP rQ Zreturn_annotationZtxtr r r
_create_fnl s
r[ c C s0 | r d| d|d| dS | d| d| S )Nz __builtins__.object.__setattr__(r9 r, r: =r )r6 r value self_namer r r
_field_assign s r_ c C s d| j }| jtk rV| jr@| j||< | d| j d| j }q| j||< | d}n8| jr| jtkrn| j }q| jtk r| j||< | j }nd S | jtkrd S t|| j ||S )NZ_dflt_z() if z is _HAS_DEFAULT_FACTORY else z())r r" r r% r! r( r r_ )r< r6 rO r^ Z default_namer] r r r _field_init s"
r` c C sV | j tkr| jtkrd}n&| j tk r2d| j }n| jtk r@d}| j d| j | S )NrS z=_dflt_z=_HAS_DEFAULT_FACTORYz:_type_)r! r r" r )r< r! r r r _init_param s
ra c C s d}xB| D ]:}|j r
|jtkr(|jtks.d}q
|r
td|jdq
W ttd}g }x(| D ] }t||||}|r\|| q\W |rd dd | D } || d t
d
| d |sd g}d
d | D }
t d|gdd | D ||
|d dS )NFTznon-default argument z follows default argument)r _HAS_DEFAULT_FACTORYr9 c s s | ]}|j tkr|jV qd S )N)r( r r )r; r< r r r rW s z_init_fn.<locals>.<genexpr>r: r8 r, passc S s i | ]}|j d |j qS )Z_type_)r r )r; r< r r r
<dictcomp> s z _init_fn.<locals>.<dictcomp>r c S s g | ]}|j rt|qS r )r% ra )r; r< r r r r> s z _init_fn.<locals>.<listcomp>)rP rO rQ ) r% r! r r" TypeErrorr rb r` appendr? _POST_INIT_NAMEr[ ) r r6
has_post_initr^ Z seen_defaultr< rO Z
body_lineslineZ
params_strrP r r r _init_fn s4
rj c C s. t dddddd | D d g}t|S )Nr )r z(return self.__class__.__qualname__ + f"(z, c S s g | ]}|j d |j dqS )z={self.z!r})r )r; r< r r r r> s z _repr_fn.<locals>.<listcomp>z)")r[ r? rN )r fnr r r _repr_fn s
rl c C sl | t d}|r,dddd |D d }nd}tdd d
| d d d
f|dtddd
| d ddf|dfS )N)clsr r8 r9 c s s | ]}t |jV qd S )N)r# r )r; r< r r r rW s z'_frozen_get_del_attr.<locals>.<genexpr>z,)z() __setattr__)r r r] z if type(self) is cls or name in :z> raise FrozenInstanceError(f"cannot assign to field {name!r}")z)super(cls, self).__setattr__(name, value))rO __delattr__)r r z; raise FrozenInstanceError(f"cannot delete field {name!r}")z"super(cls, self).__delattr__(name))r r? r[ )rm r rO Z
fields_strr r r _frozen_get_del_attr s"
rq c C s t | ddd| | | dgS )N)r otherz%if other.__class__ is self.__class__:z return zreturn NotImplemented)r[ )r op
self_tuple other_tupler r r _cmp_fn. s
rv c C s t d| }tddd| dgS )Nr __hash__)r z return hash(r, )r@ r[ )r rt r r r _hash_fn; s
rx c C s$ | |j kp"t| |jko"| j|j kS )N)ClassVarr Z
_GenericAliasZ
__origin__)a_typetypingr r r _is_classvarB s
r| c C s
| |j kS )N)r )rz dataclassesr r r _is_initvarJ s r~ c C s t | }|rd }|d}|s2tj|jj}n2tj|j}|rd|j||krdtj|jj}|r|||d|rdS dS )N TF)_MODULE_IDENTIFIER_REmatchgroupsysmodulesgetr __dict__) Z
annotationrm Za_modulerz Zis_type_predicater nsZ module_namemoduler r r _is_typeP s )
r c C s8 t | |t}t|tr |}nt|tjr,t}t|d}||_||_t |_
t j
d}|rt||st|jtrt|j| ||jtrt|_
|j
t krt j t }t||st|jtrt|j| ||jtrt|_
|j
ttfkr|jtk rtd|j d|j
t kr4t|jttt fr4t dt|j d|j d|S )N)r! r{ zfield z cannot have a default factoryzmutable default z for field z$ is not allowed: use default_factory) r. r
isinstancer r* MemberDescriptorTyper r r r r( r r r r| strr ry r r r~ r r r" re r! listdictrK r7 )rm Za_namerz r! r< r{ r} r r r
_get_field s:
r c C s || j krdS t| || dS )NTF)r setattr)rm r r] r r r _set_new_attribute s
r c C s d S )Nr )rm r r r r _hash_set_none s r c C s dd |D }t |S )Nc S s( g | ] }|j d kr|jrn|j r|qS )N)r$ r& )r; r< r r r r> s z _hash_add.<locals>.<listcomp>)rx )rm r fldsr r r _hash_add s r c C s t d| j d S )Nz-Cannot overwrite attribute __hash__ in class )re r )rm r r r r _hash_exception s r ))FFFF)FFFT)FFTF)FFTT)FTFF)FTFT)FTTF)FTTT)TFFF)TFFT)TFTF)TFTT)TTFF)TTFT)TTTF)TTTTc
sx i }t tt|||||| d}d} xX jddd D ]D}
t|
td } | r8d} x| D ]} | || j< qZW t|
tjr8d}q8W j
di }
fdd|
D }xR|D ]J} | || j< t t | jd t
r| jtkrt | j qt | j| j qW x< j D ].\}}t |t
r||
krt|dqW | rd|rP|sPtd |sd|rdtd
t t| j
d t}|tkp|d kod j k }|r|std
|rt t}dd | D }t dt|||d|krdnd dd | D }|r.dd |D }t dt| |rldd |D }td|}td|}t d td d|| |rdd |D }td|}td|}xBdD ]:\}}t |t||||rtd| d j d qW |r x<t |D ].}t |j|rtd|j d j qW t t |t |t ||f }|rJ| | _ t d st jt t ! "d d _# S ) NFr T__annotations__c s g | ]\}}t ||qS r )r )r; r r )rm r r r> A s z"_process_class.<locals>.<listcomp>z& is a field but has no type annotationz5cannot inherit non-frozen dataclass from a frozen onez5cannot inherit frozen dataclass from a non-frozen onerw __eq__z eq must be true if order is truec S s g | ]}|j ttfkr|qS r )r( r r )r; r< r r r r> ~ s r r Z__dataclass_self__c S s g | ]}|j tkr|qS r )r( r )r; r< r r r r> s c S s g | ]}|j r|qS r )r# )r; r< r r r r> s r c S s g | ]}|j r|qS r )r& )r; r< r r r r> s rr z==c S s g | ]}|j r|qS r )r& )r; r< r r r r> s ))__lt__<)__le__z<=)__gt__>)__ge__z>=zCannot overwrite attribute z
in class z). Consider using functools.total_ordering__doc__z -> NonerS )$r _PARAMSr2 __mro__r. _FIELDSvaluesr r6 r r itemsr r r! r delattrre r7 hasattrrg r rj rl r@ rv r rq _hash_actionboolrw r inspectZ signaturer r )rm r% r# r3 r4 r5 r6 r Zany_frozen_baseZhas_dataclass_basesrV Z base_fieldsr< Zcls_annotationsZ
cls_fieldsr r] Z
class_hashZhas_explicit_hashrh r Z
field_listrt ru rs rk Z hash_actionr )rm r _process_class s
r F)r% r# r3 r4 r5 r6 c s* fdd}| dkr"|S || S )a Returns the same class as was passed in, with dunder methods
added based on the fields defined in the class.
Examines PEP 526 __annotations__ to determine fields.
If init is true, an __init__() method is added to the class. If
repr is true, a __repr__() method is added. If order is true, rich
comparison dunder methods are added. If unsafe_hash is true, a
__hash__() method function is added. If frozen is true, fields may
not be assigned to after instance creation.
c s t | S )N)r )rm )r3 r6 r% r4 r# r5 r r wrap s zdataclass.<locals>.wrapNr )_clsr% r# r3 r4 r5 r6 r r )r3 r6 r% r4 r# r5 r r s c C sB yt | t}W n tk
r* tdY nX tdd | D S )zReturn a tuple describing the fields of this dataclass.
Accepts a dataclass or an instance of one. Tuple elements are of
type Field.
z0must be called with a dataclass type or instancec s s | ]}|j tkr|V qd S )N)r( r )r; r< r r r rW s zfields.<locals>.<genexpr>)r. r AttributeErrorre tupler )Zclass_or_instancer r r r r s
c C s t | t ot| tS )z2Returns True if obj is an instance of a dataclass.)r r r r )objr r r _is_dataclass_instance s r c C s
t | tS )zEReturns True if obj is a dataclass or an instance of a
dataclass.)r r )r r r r r
s ) dict_factoryc C s t | stdt| |S )a Return the fields of a dataclass instance as a new dictionary mapping
field names to field values.
Example usage:
@dataclass
class C:
x: int
y: int
c = C(1, 2)
assert asdict(c) == {'x': 1, 'y': 2}
If given, 'dict_factory' will be used instead of built-in dict.
The function applies recursively to field values that are
dataclass instances. This will also look into built-in containers:
tuples, lists, and dicts.
z0asdict() should be called on dataclass instances)r re
_asdict_inner)r r r r r r s c s t | rHg }x2t| D ]&}tt| |j }||j|f qW |S t| trvt| drvt | fdd| D S t| t
tfrt | fdd| D S t| t rt | fdd| D S t
| S d S )N_fieldsc s g | ]}t | qS r )r )r; v)r r r r> 2 s z!_asdict_inner.<locals>.<listcomp>c 3 s | ]}t | V qd S )N)r )r; r )r r r rW 7 s z _asdict_inner.<locals>.<genexpr>c 3 s& | ] \}}t | t | fV qd S )N)r )r; kr )r r r rW 9 s )r r r r. r rf r r r r r r r copydeepcopy)r r rG r< r] r )r r r s
r )
tuple_factoryc C s t | stdt| |S )a Return the fields of a dataclass instance as a new tuple of field values.
Example usage::
@dataclass
class C:
x: int
y: int
c = C(1, 2)
assert astuple(c) == (1, 2)
If given, 'tuple_factory' will be used instead of built-in tuple.
The function applies recursively to field values that are
dataclass instances. This will also look into built-in containers:
tuples, lists, and dicts.
z1astuple() should be called on dataclass instances)r re _astuple_inner)r r r r r r
@ s c s t | rBg }x,t| D ] }tt| |j }|| qW |S t| trpt| drpt | fdd| D S t| t
tfrt | fdd| D S t| t rt | fdd| D S t
| S d S )Nr c s g | ]}t | qS r )r )r; r )r r r r> f s z"_astuple_inner.<locals>.<listcomp>c 3 s | ]}t | V qd S )N)r )r; r )r r r rW k s z!_astuple_inner.<locals>.<genexpr>c 3 s& | ] \}}t | t | fV qd S )N)r )r; r r )r r r rW m s )r r r r. r rf r r r r r r r r r )r r rG r< r] r )r r r X s
r r )bases namespacer% r# r3 r4 r5 r6 c s dkri n t }
i } x|D ]} t| tr>| }
d}nDt| dkrT| \}
}n.t| dkrt| \}
}}| |
< ntd| t|
tr|
std|
t|
rtd|
|
|
krtd|
|
|
|| |
< q&W | d < t
| |i fd
d }t ||||||| d S )
a Return a new dynamically created dataclass.
The dataclass name will be 'cls_name'. 'fields' is an iterable
of either (name), (name, type) or (name, type, Field) objects. If type is
omitted, use the string 'typing.Any'. Field objects are created by
the equivalent of calling 'field(name, type [, Field-info])'.
C = make_dataclass('C', ['x', ('y', int), ('z', int, field(init=False))], bases=(Base,))
is equivalent to:
@dataclass
class C(Base):
x: 'typing.Any'
y: int
z: int = field(init=False)
For the bases and namespace parameters, see the builtin type() function.
The parameters init, repr, eq, order, unsafe_hash, and frozen are passed to
dataclass().
Nz
typing.Anyr zInvalid field: z&Field names must be valid identifers: z"Field names must not be keywords: zField name duplicated: r c s
| S )N)update)r )r r r <lambda> z make_dataclass.<locals>.<lambda>)r% r# r3 r4 r5 r6 )
r rK r r lenre isidentifierkeyword iskeywordrD r* new_classr )Zcls_namer r r r% r# r3 r4 r5 r6 seenZannsitemr tpspecrm r )r r r s s6
c K s t | stdx~t| t D ]l}|jtkr0q |jsT|j|kr t d|j dq |j|kr |jt
krzt d|jdt| |j||j< q W | j f |S )a, Return a new object replacing specified fields with new values.
This is especially useful for frozen classes. Example usage:
@dataclass(frozen=True)
class C:
x: int
y: int
c = C(1, 2)
c1 = replace(c, x=3)
assert c1.x == 3 and c1.y == 2
z1replace() should be called on dataclass instanceszfield zC is declared with init=False, it cannot be specified with replace()zInitVar z! must be specified with replace()) r re r. r r r( r r% r r7 r __class__)r Zchangesr< r r r r s
)N)Brer r r* r r rX rL rB __all__r r r rb r r r+ r) r r r r r r rg compiler r r r r r2 r r@ rN r[ r_ r` ra rj rl rq rv rx r| r~ r r r r r r r r r r r r
r r r r r
r r r r r r r <module> s
: 60
;R 4
)@