1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
| 1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
|
| 29from __future__ import print_function
30
|
29__all__ = [ 'attrdict', 'multiattrdict', 'optiondict' ]
30
31class attrdict(dict):
32 """Wrap dict, so you can use attribute access to get/set elements"""
33 def __getattr__(self, attr):
34 if attr in self:
35 return self.__getitem__(attr)
36 return super(attrdict, self).__getattribute__(attr)
37
38 def __setattr__(self, attr, value):
39 if attr in dir(self) or attr.startswith('_'):
40 return super(attrdict, self).__setattr__(attr, value)
41 return self.__setitem__(attr, value)
42
43 def __delattr__(self, attr):
44 if attr in self:
45 return self.__delitem__(attr)
46 return super(attrdict, self).__delattr__(attr)
47
48 def __getstate__(self):
49 return dict(self)
50
51 def __setstate__(self, state):
52 self.update(state)
53
54class multiattrdict(attrdict):
55 """Wrap attrdict so that nested attribute accesses automatically create
56 nested dictionaries."""
57 def __getattr__(self, attr):
58 try:
59 return super(multiattrdict, self).__getattr__(attr)
60 except AttributeError:
61 if attr.startswith('_'):
62 raise
63
64 d = multiattrdict()
65 setattr(self, attr, d)
66 return d
67
68class optiondict(attrdict):
69 """Modify attrdict so that a missing attribute just returns None"""
70 def __getattr__(self, attr):
71 try:
72 return super(optiondict, self).__getattr__(attr)
73 except AttributeError:
74 return None
75
76if __name__ == '__main__':
77 x = attrdict()
78 x.y = 1
79 x['z'] = 2
| 31__all__ = [ 'attrdict', 'multiattrdict', 'optiondict' ]
32
33class attrdict(dict):
34 """Wrap dict, so you can use attribute access to get/set elements"""
35 def __getattr__(self, attr):
36 if attr in self:
37 return self.__getitem__(attr)
38 return super(attrdict, self).__getattribute__(attr)
39
40 def __setattr__(self, attr, value):
41 if attr in dir(self) or attr.startswith('_'):
42 return super(attrdict, self).__setattr__(attr, value)
43 return self.__setitem__(attr, value)
44
45 def __delattr__(self, attr):
46 if attr in self:
47 return self.__delitem__(attr)
48 return super(attrdict, self).__delattr__(attr)
49
50 def __getstate__(self):
51 return dict(self)
52
53 def __setstate__(self, state):
54 self.update(state)
55
56class multiattrdict(attrdict):
57 """Wrap attrdict so that nested attribute accesses automatically create
58 nested dictionaries."""
59 def __getattr__(self, attr):
60 try:
61 return super(multiattrdict, self).__getattr__(attr)
62 except AttributeError:
63 if attr.startswith('_'):
64 raise
65
66 d = multiattrdict()
67 setattr(self, attr, d)
68 return d
69
70class optiondict(attrdict):
71 """Modify attrdict so that a missing attribute just returns None"""
72 def __getattr__(self, attr):
73 try:
74 return super(optiondict, self).__getattr__(attr)
75 except AttributeError:
76 return None
77
78if __name__ == '__main__':
79 x = attrdict()
80 x.y = 1
81 x['z'] = 2
|
80 print x['y'], x.y
81 print x['z'], x.z
82 print dir(x)
83 print x
| 82 print(x['y'], x.y)
83 print(x['z'], x.z)
84 print(dir(x))
85 print(x)
|
84
| 86
|
85 print
| 87 print()
|
86
87 del x['y']
88 del x.z
| 88
89 del x['y']
90 del x.z
|
89 print dir(x)
| 91 print(dir(x))
|
90 print(x)
91
| 92 print(x)
93
|
92 print
93 print "multiattrdict"
| 94 print()
95 print("multiattrdict")
|
94 x = multiattrdict()
95 x.x.x.x = 9
96 x.y.z = 9
| 96 x = multiattrdict()
97 x.x.x.x = 9
98 x.y.z = 9
|
97 print x
98 print x.y
99 print x.y.z
100 print x.z.z
| 99 print(x)
100 print(x.y)
101 print(x.y.z)
102 print(x.z.z)
|
| |