fabiocaccamo /
python-benedict
| Total Complexity | 44 |
| Total Lines | 122 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like benedict.dicts.base.base_dict often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | # -*- coding: utf-8 -*- |
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| 2 | |||
| 3 | |||
| 4 | class BaseDict(dict): |
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| 5 | |||
| 6 | _dict = None |
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| 7 | |||
| 8 | def __init__(self, *args, **kwargs): |
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| 9 | if len(args) == 1 and isinstance(args[0], dict): |
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| 10 | self._dict = args[0] |
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| 11 | super(BaseDict, self).__init__(self._dict) |
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| 12 | return |
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| 13 | self._dict = None |
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| 14 | super(BaseDict, self).__init__(*args, **kwargs) |
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| 15 | |||
| 16 | def _is_pointer(self): |
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| 17 | return self._dict is not self and self._dict is not None |
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| 18 | |||
| 19 | def __contains__(self, key): |
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| 20 | if self._is_pointer(): |
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| 21 | return key in self._dict |
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| 22 | return super(BaseDict, self).__contains__(key) |
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| 23 | |||
| 24 | def __delitem__(self, key): |
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| 25 | if self._is_pointer(): |
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| 26 | del self._dict[key] |
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| 27 | return |
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| 28 | super(BaseDict, self).__delitem__(key) |
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| 29 | |||
| 30 | def __eq__(self, other): |
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| 31 | if self._is_pointer(): |
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| 32 | return self._dict == other |
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| 33 | return super(BaseDict, self).__eq__(other) |
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| 34 | |||
| 35 | def __getitem__(self, key): |
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| 36 | if self._is_pointer(): |
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| 37 | return self._dict[key] |
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| 38 | return super(BaseDict, self).__getitem__(key) |
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| 39 | |||
| 40 | def __iter__(self): |
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| 41 | if self._is_pointer(): |
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| 42 | return iter(self._dict) |
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| 43 | return super(BaseDict, self).__iter__() |
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| 44 | |||
| 45 | def __len__(self): |
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| 46 | if self._is_pointer(): |
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| 47 | return len(self._dict) |
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| 48 | return super(BaseDict, self).__len__() |
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| 49 | |||
| 50 | def __repr__(self): |
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| 51 | if self._is_pointer(): |
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| 52 | return repr(self._dict) |
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| 53 | return super(BaseDict, self).__repr__() |
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| 54 | |||
| 55 | def __setitem__(self, key, value): |
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| 56 | if self._is_pointer(): |
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| 57 | self._dict[key] = value |
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| 58 | return |
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| 59 | super(BaseDict, self).__setitem__(key, value) |
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| 60 | |||
| 61 | def __str__(self): |
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| 62 | if self._is_pointer(): |
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| 63 | return str(self._dict) |
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| 64 | return super(BaseDict, self).__str__() |
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| 65 | |||
| 66 | def __unicode__(self): |
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| 67 | if self._is_pointer(): |
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| 68 | return unicode(self._dict) |
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|
Comprehensibility
Best Practice
introduced
by
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| 69 | return super(BaseDict, self).__unicode__() |
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| 70 | |||
| 71 | def clear(self): |
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| 72 | if self._is_pointer(): |
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| 73 | self._dict.clear() |
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| 74 | return |
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| 75 | super(BaseDict, self).clear() |
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| 76 | |||
| 77 | def copy(self): |
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| 78 | if self._is_pointer(): |
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| 79 | return self._dict.copy() |
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| 80 | return super(BaseDict, self).copy() |
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| 81 | |||
| 82 | def dict(self): |
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| 83 | if self._is_pointer(): |
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| 84 | return self._dict |
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| 85 | return self |
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| 86 | |||
| 87 | def get(self, key, default=None): |
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| 88 | if self._is_pointer(): |
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| 89 | return self._dict.get(key, default) |
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| 90 | return super(BaseDict, self).get(key, default) |
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| 91 | |||
| 92 | def items(self): |
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| 93 | if self._is_pointer(): |
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| 94 | return self._dict.items() |
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| 95 | return super(BaseDict, self).items() |
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| 96 | |||
| 97 | def keys(self): |
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| 98 | if self._is_pointer(): |
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| 99 | return self._dict.keys() |
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| 100 | return super(BaseDict, self).keys() |
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| 101 | |||
| 102 | def pop(self, key, *args): |
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| 103 | if self._is_pointer(): |
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| 104 | return self._dict.pop(key, *args) |
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| 105 | return super(BaseDict, self).pop(key, *args) |
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| 106 | |||
| 107 | def setdefault(self, key, default=None): |
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| 108 | if self._is_pointer(): |
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| 109 | return self._dict.setdefault(key, default) |
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| 110 | return super(BaseDict, self).setdefault(key, default) |
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| 111 | |||
| 112 | def update(self, other): |
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| 113 | if self._is_pointer(): |
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| 114 | self._dict.update(other) |
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| 115 | return |
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| 116 | super(BaseDict, self).update(other) |
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| 117 | |||
| 118 | def values(self): |
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| 119 | if self._is_pointer(): |
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| 120 | return self._dict.values() |
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| 121 | return super(BaseDict, self).values() |
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| 122 |
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