42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# Copyright 2011 Justin Santa Barbara
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Utilities and helper functions that won't produce circular imports."""
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def get_wrapped_function(function):
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"""Get the method at the bottom of a stack of decorators."""
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if not hasattr(function, '__closure__') or not function.__closure__:
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return function
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def _get_wrapped_function(function):
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if not hasattr(function, '__closure__') or not function.__closure__:
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return None
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for closure in function.__closure__:
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func = closure.cell_contents
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deeper_func = _get_wrapped_function(func)
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if deeper_func:
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return deeper_func
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elif hasattr(closure.cell_contents, '__call__'):
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return closure.cell_contents
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return function
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return _get_wrapped_function(function)
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