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24 lines
835 B
24 lines
835 B
9 months ago
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u"""Fixer for 'g.throw(E(V).with_traceback(T))' -> 'g.throw(E, V, T)'"""
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from lib2to3 import fixer_base
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from lib2to3.pytree import Node, Leaf
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from lib2to3.pgen2 import token
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from lib2to3.fixer_util import Comma
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class FixThrow(fixer_base.BaseFix):
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PATTERN = u"""
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power< any trailer< '.' 'throw' >
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trailer< '(' args=power< exc=any trailer< '(' val=any* ')' >
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trailer< '.' 'with_traceback' > trailer< '(' trc=any ')' > > ')' > >
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"""
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def transform(self, node, results):
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syms = self.syms
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exc, val, trc = (results[u"exc"], results[u"val"], results[u"trc"])
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val = val[0] if val else Leaf(token.NAME, u"None")
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val.prefix = trc.prefix = u" "
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kids = [exc.clone(), Comma(), val.clone(), Comma(), trc.clone()]
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args = results[u"args"]
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args.children = kids
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