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

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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-1:000000000000 0:26e78fe6e8c4
1 u"""
2 Fixer for "class Foo: ..." -> "class Foo(object): ..."
3 """
4
5 from lib2to3 import fixer_base
6 from lib2to3.fixer_util import LParen, RParen, Name
7
8 from libfuturize.fixer_util import touch_import_top
9
10
11 def insert_object(node, idx):
12 node.insert_child(idx, RParen())
13 node.insert_child(idx, Name(u"object"))
14 node.insert_child(idx, LParen())
15
16 class FixNewstyle(fixer_base.BaseFix):
17
18 # Match:
19 # class Blah:
20 # and:
21 # class Blah():
22
23 PATTERN = u"classdef< 'class' NAME ['(' ')'] colon=':' any >"
24
25 def transform(self, node, results):
26 colon = results[u"colon"]
27 idx = node.children.index(colon)
28 if (node.children[idx-2].value == '(' and
29 node.children[idx-1].value == ')'):
30 del node.children[idx-2:idx]
31 idx -= 2
32 insert_object(node, idx)
33 touch_import_top(u'builtins', 'object', node)