1 """ 2 Objective-C runtime wrapper for use by LLDB Python formatters 3 4 part of The LLVM Compiler Infrastructure 5 This file is distributed under the University of Illinois Open Source 6 License. See LICENSE.TXT for details. 7 """ 8 class AttributesDictionary: 9 def __init__(self, allow_reset = True): 10 self.__dict__['_dictionary'] = {} # need to do it this way to prevent endless recursion 11 self.__dict__['_allow_reset'] = allow_reset 12 13 def __getattr__(self,name): 14 if not self._check_exists(name): 15 return None 16 value = self._dictionary[name] 17 return value 18 19 def _set_impl(self,name,value): 20 self._dictionary[name] = value 21 22 def _check_exists(self,name): 23 return name in self._dictionary 24 25 def __setattr__(self,name,value): 26 if self._allow_reset: 27 self._set_impl(name,value) 28 else: 29 self.set_if_necessary(name,value) 30 31 def set_if_necessary(self,name,value): 32 if not self._check_exists(name): 33 self._set_impl(name,value) 34 return True 35 return False 36 37 def __len__(self): 38 return len(self._dictionary)
