You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.6 KiB
53 lines
1.6 KiB
6 years ago
|
# Copyright 2008 Armin Ronacher.
|
||
|
|
# Licensed to PSF under a Contributor Agreement.
|
||
|
|
|
||
|
|
"""Fixer that cleans up a tuple argument to isinstance after the tokens
|
||
|
|
in it were fixed. This is mainly used to remove double occurrences of
|
||
|
|
tokens as a leftover of the long -> int / unicode -> str conversion.
|
||
|
|
|
||
|
|
eg. isinstance(x, (int, long)) -> isinstance(x, (int, int))
|
||
|
|
-> isinstance(x, int)
|
||
|
|
"""
|
||
|
|
|
||
|
|
from .. import fixer_base
|
||
|
|
from ..fixer_util import token
|
||
|
|
|
||
|
|
|
||
|
|
class FixIsinstance(fixer_base.BaseFix):
|
||
|
|
BM_compatible = True
|
||
|
|
PATTERN = """
|
||
|
|
power<
|
||
|
|
'isinstance'
|
||
|
|
trailer< '(' arglist< any ',' atom< '('
|
||
|
|
args=testlist_gexp< any+ >
|
||
|
|
')' > > ')' >
|
||
|
|
>
|
||
|
|
"""
|
||
|
|
|
||
|
|
run_order = 6
|
||
|
|
|
||
|
|
def transform(self, node, results):
|
||
|
|
names_inserted = set()
|
||
|
|
testlist = results["args"]
|
||
|
|
args = testlist.children
|
||
|
|
new_args = []
|
||
|
|
iterator = enumerate(args)
|
||
|
|
for idx, arg in iterator:
|
||
|
|
if arg.type == token.NAME and arg.value in names_inserted:
|
||
|
|
if idx < len(args) - 1 and args[idx + 1].type == token.COMMA:
|
||
|
|
next(iterator)
|
||
|
|
continue
|
||
|
|
else:
|
||
|
|
new_args.append(arg)
|
||
|
|
if arg.type == token.NAME:
|
||
|
|
names_inserted.add(arg.value)
|
||
|
|
if new_args and new_args[-1].type == token.COMMA:
|
||
|
|
del new_args[-1]
|
||
|
|
if len(new_args) == 1:
|
||
|
|
atom = testlist.parent
|
||
|
|
new_args[0].prefix = atom.prefix
|
||
|
|
atom.replace(new_args[0])
|
||
|
|
else:
|
||
|
|
args[:] = new_args
|
||
|
|
node.changed()
|