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/
home/
yalagina/
usr/
lib/
python2.7/
lib2to3/
fixes/
- drwxr-xr-x
|
Viewing file:  fix_apply.py (1.86 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
# Copyright 2006 Google, Inc. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
"""Fixer for apply().
This converts apply(func, v, k) into (func)(*v, **k)."""
# Local imports
from .. import pytree
from ..pgen2 import token
from .. import fixer_base
from ..fixer_util import Call, Comma, parenthesize
class FixApply(fixer_base.BaseFix):
BM_compatible = True
PATTERN = """
power< 'apply'
trailer<
'('
arglist<
(not argument<NAME '=' any>) func=any ','
(not argument<NAME '=' any>) args=any [','
(not argument<NAME '=' any>) kwds=any] [',']
>
')'
>
>
"""
def transform(self, node, results):
syms = self.syms
assert results
func = results["func"]
args = results["args"]
kwds = results.get("kwds")
prefix = node.prefix
func = func.clone()
if (func.type not in (token.NAME, syms.atom) and
(func.type != syms.power or
func.children[-2].type == token.DOUBLESTAR)):
# Need to parenthesize
func = parenthesize(func)
func.prefix = ""
args = args.clone()
args.prefix = ""
if kwds is not None:
kwds = kwds.clone()
kwds.prefix = ""
l_newargs = [pytree.Leaf(token.STAR, u"*"), args]
if kwds is not None:
l_newargs.extend([Comma(),
pytree.Leaf(token.DOUBLESTAR, u"**"),
kwds])
l_newargs[-2].prefix = u" " # that's the ** token
# XXX Sometimes we could be cleverer, e.g. apply(f, (x, y) + t)
# can be translated into f(x, y, *t) instead of f(*(x, y) + t)
#new = pytree.Node(syms.power, (func, ArgList(l_newargs)))
return Call(func, l_newargs, prefix=prefix)
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