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34 lines
888 B
34 lines
888 B
9 months ago
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u"""
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Fixer for "class Foo: ..." -> "class Foo(object): ..."
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"""
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from lib2to3 import fixer_base
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from lib2to3.fixer_util import LParen, RParen, Name
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from libfuturize.fixer_util import touch_import_top
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def insert_object(node, idx):
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node.insert_child(idx, RParen())
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node.insert_child(idx, Name(u"object"))
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node.insert_child(idx, LParen())
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class FixNewstyle(fixer_base.BaseFix):
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# Match:
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# class Blah:
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# and:
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# class Blah():
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PATTERN = u"classdef< 'class' NAME ['(' ')'] colon=':' any >"
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def transform(self, node, results):
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colon = results[u"colon"]
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idx = node.children.index(colon)
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if (node.children[idx-2].value == '(' and
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node.children[idx-1].value == ')'):
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del node.children[idx-2:idx]
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idx -= 2
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insert_object(node, idx)
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touch_import_top(u'builtins', 'object', node)
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