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annotate planemo/lib/python3.7/site-packages/libpasteurize/fixes/fix_raise_.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 u"""Fixer for
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2 raise E(V).with_traceback(T)
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3 to:
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4 from future.utils import raise_
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5 ...
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6 raise_(E, V, T)
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7
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8 TODO: FIXME!!
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9
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10 """
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11
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12 from lib2to3 import fixer_base
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13 from lib2to3.fixer_util import Comma, Node, Leaf, token, syms
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14
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15 class FixRaise(fixer_base.BaseFix):
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16
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17 PATTERN = u"""
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18 raise_stmt< 'raise' (power< name=any [trailer< '(' val=any* ')' >]
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19 [trailer< '.' 'with_traceback' > trailer< '(' trc=any ')' >] > | any) ['from' chain=any] >"""
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20
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21 def transform(self, node, results):
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22 FIXME
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23 name, val, trc = (results.get(u"name"), results.get(u"val"), results.get(u"trc"))
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24 chain = results.get(u"chain")
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25 if chain is not None:
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26 self.warning(node, u"explicit exception chaining is not supported in Python 2")
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27 chain.prev_sibling.remove()
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28 chain.remove()
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29 if trc is not None:
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30 val = val[0] if val else Leaf(token.NAME, u"None")
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31 val.prefix = trc.prefix = u" "
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32 kids = [Leaf(token.NAME, u"raise"), name.clone(), Comma(),
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33 val.clone(), Comma(), trc.clone()]
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34 raise_stmt = Node(syms.raise_stmt, kids)
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35 node.replace(raise_stmt)