forked from OSchip/llvm-project
31 lines
788 B
Python
31 lines
788 B
Python
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class AttributesDictionary:
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def __init__(self, allow_reset = True):
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self.__dict__['_dictionary'] = {} # need to do it this way to prevent endless recursion
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self.__dict__['_allow_reset'] = allow_reset
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def __getattr__(self,name):
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if not self._check_exists(name):
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return None
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value = self._dictionary[name]
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return value
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def _set_impl(self,name,value):
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self._dictionary[name] = value
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def _check_exists(self,name):
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return name in self._dictionary
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def __setattr__(self,name,value):
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if self._allow_reset:
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self._set_impl(name,value)
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else:
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self.set_if_necessary(name,value)
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def set_if_necessary(self,name,value):
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if not self._check_exists(name):
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self._set_impl(name,value)
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return True
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return False
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def __len__(self):
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return len(self._dictionary)
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