Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/tensorflow/python/framework/immutable_dict.py: 62%

1# Copyright 2021 The TensorFlow Authors. All Rights Reserved. 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================== 

15"""Immutable mapping.""" 

16 

17import collections.abc 

18 

19 

20# WARNING: this class is used internally by extension types (tf.ExtensionType), 

21# and may be deleted if/when extension types transition to a different encoding 

22# in the future. 

23class ImmutableDict(collections.abc.Mapping): 

24 """Immutable `Mapping`.""" 

25 # Note: keys, items, values, get, __eq__, and __ne__ are implemented by 

26 # the `Mapping` base class. 

27 

28 def __init__(self, *args, **kwargs): 

29 self._dict = dict(*args, **kwargs) 

30 

31 def __getitem__(self, key): 

32 return self._dict[key] 

33 

34 def __contains__(self, key): 

35 return key in self._dict 

36 

37 def __iter__(self): 

38 return iter(self._dict) 

39 

40 def __len__(self): 

41 return len(self._dict) 

42 

43 def __repr__(self): 

44 return f'ImmutableDict({self._dict})' 

45 

46 # This supresses a warning that tf.nest woud otherwise generate. 

47 __supported_by_tf_nest__ = True 

48