| Index: third_party/gsutil/gslib/plurality_checkable_iterator.py
|
| diff --git a/third_party/gsutil/gslib/plurality_checkable_iterator.py b/third_party/gsutil/gslib/plurality_checkable_iterator.py
|
| deleted file mode 100644
|
| index a24b93b1efb0ce2756450e2b8764131123e7f955..0000000000000000000000000000000000000000
|
| --- a/third_party/gsutil/gslib/plurality_checkable_iterator.py
|
| +++ /dev/null
|
| @@ -1,56 +0,0 @@
|
| -# Copyright 2012 Google Inc. All Rights Reserved.
|
| -#
|
| -# Licensed under the Apache License, Version 2.0 (the "License");
|
| -# you may not use this file except in compliance with the License.
|
| -# You may obtain a copy of the License at
|
| -#
|
| -# http://www.apache.org/licenses/LICENSE-2.0
|
| -#
|
| -# Unless required by applicable law or agreed to in writing, software
|
| -# distributed under the License is distributed on an "AS IS" BASIS,
|
| -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| -# See the License for the specific language governing permissions and
|
| -# limitations under the License.
|
| -
|
| -"""
|
| -Iterator wrapper that allows you to check whether the wrapped iterator
|
| -is empty and whether it has more than 1 element.
|
| -"""
|
| -
|
| -class PluralityCheckableIterator(object):
|
| -
|
| - def __init__(self, it):
|
| - self.it = it.__iter__()
|
| - self.head = []
|
| - # Populate first 2 elems into head so we can check whether iterator has
|
| - # more than 1 item.
|
| - for i in range(0, 2):
|
| - self.__populate_head__()
|
| -
|
| - def __populate_head__(self):
|
| - try:
|
| - e = self.it.next()
|
| - self.underlying_iter_empty = False
|
| - self.head.append(e)
|
| - except StopIteration:
|
| - # Indicates we can no longer call next() on underlying iterator, but
|
| - # there could still be elements left to iterate in head.
|
| - self.underlying_iter_empty = True
|
| -
|
| - def __iter__(self):
|
| - while len(self.head) > 0:
|
| - yield self.next()
|
| - else:
|
| - raise StopIteration()
|
| -
|
| - def next(self):
|
| - # Backfill into head each time we pop an element so we can always check
|
| - # for emptiness and for has_plurality().
|
| - self.__populate_head__()
|
| - return self.head.pop(0)
|
| -
|
| - def is_empty(self):
|
| - return len(self.head) == 0
|
| -
|
| - def has_plurality(self):
|
| - return len(self.head) > 1
|
|
|