�
y_VXc	@s�
dZd
dl
Z
d
dlZd
dlZd
dlZd
dlmZ
d
dlmZ	
d
dlm
Z

d
dlmZ
ejddfkr�d	Z
nd
Z
e
ddhZd
ddddddddh	Zd�Zdef
d��YZed�
Zdef
d��YZdef
d��YZdef
d��YZd ef
d!��YZd"�Zejd#��
Zejd$��
Zd%ef
d&��YZd'ef
d(��YZdS()sXThis module contains base classes and functions for the nodes and some
inference utils.
i����N(
tcontext(
t
decorators(
t
exceptions(
tutiliitbuiltinst__builtin__s	.propertysabc.abstractpropertytcached_propertytcachedpropertytlazypropertyt
lazy_propertytreifyt
lazyattributetlazy_attributetLazyPropertytlazyc

sItj
|j��
rtSd
�|j�D�
�t�f
d�tD�
�
S(Nc
Ss2h|](}
|
tj
k	r|
jd�
d
�qS(t
.i����(RtYEStsplit(t.0tname((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pys	<setcomp>8s	
c
3s|]}
|
�kV
qdS(
N((RR(
tstripped(s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pys	<genexpr>:s(t
PROPERTIEStintersectiontdecoratornamestTruetanytPOSSIBLE_PROPERTIES(
tmeth((
Rs>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt_is_property5s


tProxycBs5eZ
dZdZdd
�
Zd�Zdd�
ZRS(sa simple proxy objectcCs|
dk	r|
|_
ndS(
N(tNonet_proxied(tselftproxied((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt__init__Bs

cCsF|
d
krt|j
d
�S|
|jkr6|j|
St|j|
�S(NR(tgetattrt	__class__t__dict__R(R R((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt__getattr__Fs





c
cs	|V
dS(
N((R R((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytinferMs
N(t__name__t
__module__t__doc__RRR"R&R'(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR=s

	ccs
d}t
}|
dk	r0|
j}|
j�}
nd}tj�}
x�|D]�}|tjkro|V
t}qIn|j	||�|
_y,x%|j
d
|
�
D]}|V
t}q�WWqItjk
r�


qIqItj
k
r�


tjV
t}qIXqIW|s

tj
t|�
�
�
ndS(sGReturn an iterator on statements inferred by each statement in *stmts*.RN(RtFalset
lookupnametclonet
contextmodtInferenceContextRRRt_infer_nameR'RtUnresolvableNametInferenceErrortstr(tstmtsRtframetstmttinferredR((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt_infer_stmtsQs0


	


















tInstancecBszeZ
dZded
�Zdd�
Zdd�
Zdd�
Zd�Z	d�Z
d�Zd�Zd	�Z
dd
�
ZRS(s,a special node representing a class instancecCs�y|jj
|
|�}Wnntjk
r�


|
d
krB|jg
S|rw|
dkrd|jj|
�
S|jj|
|�Stj|
�
�
n
X|r�y||jj|
|�SWq�tjk
r�


q�Xn|S(NR$R(t	__bases__t__mro__t__subclasses__(R(R:R;R<(Rt
instance_attrRt
NotFoundErrort
local_attrR#(R RRtlookupclasstvalues((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR#qs 














cCs�|stj
�}nyQ|j|j|
f�

|j|
|d
t�
}t|j||�|d|�
SWn]tj	k
r�


y#|j|jj
|
|�|�SWq�tj	k
r�


tj|
�
�
q�Xn
XdS(sinferred getattrR@R5N(R.R/tpushRR#R+R8t
_wrap_attrRR>tigetattrR2(R RRtget_attr((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRD�s









ccs�x�|
D]�}t|t
�r^t|�
rMx0|j||�D]}|V
q;Wq�t||�V
qt|d
�r�|jdkr�|j�j�|j	kr�|j
j
r�|j
j
djdkr�t||�V
qq�n|V
q|V
qWdS(s7wrap bound methods of attrs in a InstanceMethod proxiesRs<lambda>iR N(t
isinstancet
UnboundMethodRtinfer_call_resulttBoundMethodthasattrRt	statementtscopeRtargs(R tattrsRtattrR7((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRC�s






%

	
ccs�t}xg|j
jd
|�D]P}|tjks|j�rDqnx%|j|
|�D]}t}|V
qWWqW|s�tj	��
ndS(s4infer what a class instance is returning when calledt__call__N(
R+RRDRRtcallableRHRRR2(R tcallerRR7tnodetres((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRH�s








c

Cs)d
|jj
�j|jjt|�
fS(Ns<Instance of %s.%s at 0x%s>(RtrootRtid(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt__repr__�s

	
c

Cs d
|jj
�j|jjfS(NsInstance of %s.%s(RRUR(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt__str__�s

c

Cs4y|jj
d
�

tSWntjk
r/


tSXdS(NRP(RR#RRR>R+(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRQ�s





c


Cs
|jj
�S(
N(Rtqname(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytpytype�s
c


Csd
S(NsInstance of((
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytdisplay_type�s
c
CsdS(
N((R tindexR((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytgetitem�s
N(R(R)R*RRR#RDRCRHRWRXRQRZR[R](((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR9os

					RGcBsAeZ
dZd
�Zd�Zdd�
Zdd�
Zd�ZRS(s=a special node representing a method not bound to an instancec
Cs>|jj
j�}
d
|jj|jj|
j�t|�
fS(Ns<%s %s of %s at 0x%s(RtparentR5R$R(RRYRV(R R5((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRW�s


	
c


CstS(
N(
R+(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytis_bound�s
cCs)|
d
kr|jg
S|jj
|
|�S(Ntim_func(RR#(R RR((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR#�s



cCs/|
d
krt|j
f
�
S|j
j|
|�S(NR`(titerRRD(R RR((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRD�s


cCsw|jj
d
krd|jjj�j�dtkrd|
jrP|
jdj�ng}d�|D�
S|jj|
|�S(Nt__new__s	%s.objectic
ss0|]&}
|
tj
kr|
p't|
�
V
qdS(
N(RRR9(Rt
x((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pys	<genexpr>�s(	RRR^R5RYtBUILTINSRMR'RH(R RRRR'((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRH�s

"
"

N(	R(R)R*RWR_RR#RDRH(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRG�s

		RIcBs,eZ
dZd
�Zd�Zdd�
ZRS(s9a special node representing a method bound to an instancecCstj
||
�
||_dS(
N(RGR"tbound(R tproxyRe((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR"�s

c


CstS(
N(
R(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR_
s
cCsL|dkrt
j�}n|j�}|j|_tt|�j|
|�S(
N(	RR.R/R-Ret	boundnodetsuperRIRH(R RRR((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRH
s




N(R(R)R*R"R_RRH(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRI�s

		t	Generatorc
Bs;eZ
dZd
�Zd�Zd�Zd�Zd�ZRS(sea special node representing a generator.

    Proxied class is set once for all in raw_building.
    c


CstS(
N(
R+(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRQ
s
c

Csd
tS(Ns%s.generator(
Rd(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRZ
s
c


Csd
S(NRi((
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR[
s
c

Cs d
|jj
|jt|�
fS(Ns<Generator(%s) l.%s at 0x%s>(RRtlinenoRV(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRW
s
c

Csd
|jj
S(Ns
Generator(%s)(RR(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRX
s
(R(R)R*RQRZR[RWRX(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRi
s
				c
Cs"tj
|�
d|d
��
}
|
S(s:return the given infer function wrapped to handle the pathc{s�|
d
krt
j�}
n|
j|�

t�}x\|||
|�D]H}|jtkre|j}n|}||krD|V
|j|�

qDqDWd
S(s!wrapper function handling contextN(	RR.R/RBtsetR$R9Rtadd(RSRt_functkwargstyieldedRTtares((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytwrapped'
s



	




N(t	functoolstwrapsR(tfuncRq((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytpath_wrapper%
s
ccs@t}x"|||�D]}t
}|V
qW|s<tjV
ndS(
N(R+RRR(RttinstanceRMRnR7RS((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytyes_if_nothing_inferred9
s


	

ccsDt}x"|||�D]}t
}|V
qW|s@tj��
ndS(
N(R+RRR2(RtRvRMRnR7RS((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytraise_if_nothing_inferredB
s


	

tNodeNGcBs�
eZ
dZeZeZeZd"Zd"Z	d"Z
d"Zd"Zd#Z
d"Zd"d
�
Zd�Zd�Zd�Zd�Zd�Zd�Zd�Zd	�Zd
�Zd�Zd�Zd
�Zd�Zd�Zd�Zd�Ze j!d��
Z	e j!d��
Z
d�Z"d�Z#d�Z$d"d�
Z%d�Z&d"d�
Z'd�Z(d�Z)d�Z*d�Z+d�Z,d�Z-d �Z.ed!�
Z/RS($shBase Class for all Astroid node classes.

    It represents a node of the new abstract syntax tree.
    cKs�|jd
k	r@y|j||
|�SWq@tjk
r<


q@Xn|
sV|j|
|�
S||
j|
j|
jf}||
jkr�t	|
j|�
S|
j
||j|
|�
�S(s�main interface to the interface system, return a generator on infered
        values.

        If the instance has some explicit inference function set, it will be
        called instead of the default interface.
        N(t_explicit_inferenceRRtUseInferenceDefaultt_inferR,tcallcontextRgR7Ratcache_generator(R RRntkey((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR'b
s



	


c

Cst|d
t|dd��S(s?return self.name or self.attrname or '' for nice representationRtattrnamet(
R#(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt
_repr_namez
sc

Csd
|jj
|j�fS(Ns%s(%s)(R$R(R�(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRX~
s
c

Cs5d
|jj
|j�|j|j�jt|�
fS(Ns<%s(%s) l.%s [%s] at 0x%x>(R$R(R�t
fromlinenoRURRV(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRW�
s


	


cCs)t|
d
|j
jj��}||�
S(Ntvisit_(R#R$R(tlower(R tvisitorRt((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytaccept�
s

c
cslxe|jD]Z}
t
||
�}|dkr1q
nt|ttf�r_x|D]}|V
qMWq
|V
q
WdS(
N(t_astroid_fieldsR#RRFtlistttuple(R tfieldROtelt((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytget_children�
s







c
CsaxZ|jd
d
d�D]B}
t
||
�}|s8qnt|ttf�rU|dS|SqWd
S(s0an optimized version of list(get_children())[-1]Ni����(R�R#RFR�R�R(R R�RO((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt
last_child�
s





cCs9|
j}x)|d
k	r4||kr(tS|j}qWtS(s-return true if i'm a parent of the given nodeN(R^RRR+(R RSR^((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt	parent_of�
s	





c


Cs|jr
|S|j
j�S(
s5return the first parent node marked as statement node(tis_statementR^RK(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRK�
s	

c


Cs
|jj
�S(
s[return the first parent frame node (i.e. Module, FunctionDef or
        ClassDef)

        (R^R5(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR5�
sc


Cs
|jj
�S(
szreturn the first node defining a new scope (i.e. Module,
        FunctionDef, ClassDef, Lambda but also GenExpr)

        (R^RL(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRL�
sc


Cs|jr|jj
�S|S(
s1return the root node of the tree, (i.e. a Module)(R^RU(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRU�
s	


cCs�xX|jD]M}t
||�}||
kr2|g
St|ttf�r
|
|kr
|Sq
Wd
}tj|t|
�
t|�
f�
�
dS(s5search for the right sequence where the child lies ins"Could not find %s in %s's childrenN(R�R#RFR�R�RtAstroidErrortrepr(R tchildR�tnode_or_sequencetmsg((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytchild_sequence�
s





cCs�xa|jD]V}t
||�}|
|kr5||
fSt|ttf�r
|
|kr
||fSq
Wd
}tj|t|
�
t|�
f�
�
dS(s8return a 2-uple (child attribute name, sequence or node)s"Could not find %s in %s's childrenN(R�R#RFR�R�RR�R�(R R�R�R�R�((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytlocate_child�
s



!


c


Cs
|jj
�S(
s!return the next sibling statement(R^tnext_sibling(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR��
sc


Cs
|jj
�S(
s%return the previous sibling statement(R^tprevious_sibling(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR��
scCs�|j�}|j
}d}xq|
D]i}|j�|ksPtd||f�
�
|j
}|j
|krlPn||dkr"||f}q"q"W|d
S(s`return the node which is the nearest before this one in the
        given list of nodes
        is,nodes %s and %s are not from the same modulei
N(Ni(RUR�RtAssertionError(R tnodestmyroottmylinenotnearestRSRj((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR��
s
	





	



c

Cs$|jdkr|j�S|jSdS(
N(RjRt_fixed_source_line(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�s

c
Csr|jsd}
n|j�}
|
dkr1|jS|
jS|jdk	sSt|�
�
|jdk	snt|�
�
dS(
N(R�RR�R�ttolinenoR�(R t	lastchild((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�s		


c
Cs�|j}
|}y2x+|
d
kr?t|j��
}|j}
qWWnEtk
r�


|j}x,|r�|
d
kr�|j}
|j}q]Wn
X|
S(s�return the line number where the given node appears

        we need this method since not all nodes have the lineno attribute
        correctly set...
        N(RjRtnextR�t
StopIterationR^(R tlinet_node((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�s	







	

	

cCs
|
|jfS(
sIhandle block line numbers range for non block opening statements
        (
R�(R Rj((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytblock_range*scCs|jj
|
|�
d
S(s8delegate to a scoped parent handling a locals dictionaryN(R^t	set_local(R RR6((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�/sccsut||
�r|V
nxW|j
�D]I}|d
k	rKt||�rKq$nx|j|
|�D]}|V
q^Wq$Wd
S(s�return an iterator on nodes which are instance of the given class(es)

        klass may be a class object or a tuple of class objects
        N(RFR�Rtnodes_of_class(R tklasst
skip_klasst
child_nodetmatching((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�3s





c
CsdS(
N(
R(R R5R((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR0@scCstj
|jj�
�
d
S(s3we don't know how to resolve a statement by defaultN(RR2R$R((R R((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR|Dsc

Cst|j
��
S(
s@return list of inferred values for a more simple inference usage(R�R'(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR7Isc

Cs<tj
d
t|�
jt|�
jftdd�

|j�S(Ns\%s.infered() is deprecated and slated for removal in astroid 2.0, use %s.inferred() instead.t
stackleveli(twarningstwarnttypeR(tPendingDeprecationWarningR7(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytinferedMs
	


c


Cs|S(
s=instanciate a node if it is a ClassDef node, else return self((
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pytinstanciate_classTsc
CstS(
N(
R+(R RS((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pythas_baseXs
c


CstS(
N(
R+(
R ((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRQ[s
c
CstS(
N(
R+(R tvalue((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyteq^s
c
Csd
dlm
}

|
|�
S(Ni����(
tto_code(tastroid.as_stringR�(R R�((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt	as_stringas

cCsd
dlm
}
||�
S(Ni����(
tdump(R�R�(R tidsR�((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt	repr_treees

N((0R(R)R*R+R�toptional_assigntis_functionRRjR�R�t
col_offsetR^R�RzR'R�RXRWR�R�R�R�RKR5RLRUR�R�R�R�R�t
decoratorsmodRR�R�R�R�R0R|R7R�R�R�RQR�R�R�(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyRyN
sX





																				
								t	Statementc
Bs&eZ
dZeZd
�Zd�ZRS(s&Statement node adding a few attributesc
CsI|jj
|�
}
|
j|�
}y|
|d
SWntk
rD


n
XdS(s!return the next sibling statementi
N(R^R�R\t
IndexError(R R4R\((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�ns





c
Cs=|jj
|�
}
|
j|�
}|d
kr9|
|d
SdS(s%return the previous sibling statementi
N(R^R�R\(R R4R\((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�ws


(R(R)R*RR�R�R�(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyR�js

		(R*RrtsysR�twrapttastroidRR.R
R�RRtversion_infoRdRRRtobjectRRR8R9RGRIRiRut	decoratorRwRxRyR�(((s>/opt/alt/python27/lib/python2.7/site-packages/astroid/bases.pyt<module>s:






	


	

	n		�