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annotate env/lib/python3.7/site-packages/libpasteurize/fixes/fix_newstyle.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 u"""
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2 Fixer for "class Foo: ..." -> "class Foo(object): ..."
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3 """
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4
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5 from lib2to3 import fixer_base
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6 from lib2to3.fixer_util import LParen, RParen, Name
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7
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8 from libfuturize.fixer_util import touch_import_top
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11 def insert_object(node, idx):
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12 node.insert_child(idx, RParen())
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13 node.insert_child(idx, Name(u"object"))
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14 node.insert_child(idx, LParen())
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15
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16 class FixNewstyle(fixer_base.BaseFix):
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17
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18 # Match:
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19 # class Blah:
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20 # and:
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21 # class Blah():
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22
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23 PATTERN = u"classdef< 'class' NAME ['(' ')'] colon=':' any >"
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24
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25 def transform(self, node, results):
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26 colon = results[u"colon"]
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27 idx = node.children.index(colon)
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28 if (node.children[idx-2].value == '(' and
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29 node.children[idx-1].value == ')'):
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30 del node.children[idx-2:idx]
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31 idx -= 2
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32 insert_object(node, idx)
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33 touch_import_top(u'builtins', 'object', node)