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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 from telemetry import extension_to_load | |
6 | |
7 class ExtensionDict(object): | |
8 """Dictionary of ExtensionPage instances, with extension_id as key""" | |
9 | |
10 def __init__(self, extension_dict_backend): | |
11 self._extension_dict_backend = extension_dict_backend | |
12 | |
13 def __getitem__(self, load_extension): | |
14 """Given an ExtensionToLoad instance, returns the corresponding | |
15 ExtensionPage instance.""" | |
16 if not isinstance(load_extension, extension_to_load.ExtensionToLoad): | |
17 raise Exception("Input param must be of type ExtensionToLoad") | |
18 return self._extension_dict_backend.__getitem__( | |
19 load_extension.extension_id()) | |
20 | |
21 def __contains__(self, load_extension): | |
22 """Checks if this ExtensionToLoad instance has been loaded""" | |
23 if not isinstance(load_extension, extension_to_load.ExtensionToLoad): | |
24 raise Exception("Input param must be of type ExtensionToLoad") | |
25 return self._extension_dict_backend.__contains__( | |
26 load_extension.extension_id()) | |
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