forked from OSchip/llvm-project
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
"""
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Objective-C runtime wrapper for use by LLDB Python formatters
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Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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See https://llvm.org/LICENSE.txt for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""
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class AttributesDictionary:
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def __init__(self, allow_reset=True):
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# need to do it this way to prevent endless recursion
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self.__dict__['_dictionary'] = {}
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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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