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Diffstat (limited to '')
-rwxr-xr-x | src/VBox/Devices/EFI/Firmware/BaseTools/Source/Python/Common/caching.py | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/BaseTools/Source/Python/Common/caching.py b/src/VBox/Devices/EFI/Firmware/BaseTools/Source/Python/Common/caching.py new file mode 100755 index 00000000..681740c1 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/BaseTools/Source/Python/Common/caching.py @@ -0,0 +1,41 @@ +## @file +# help with caching in BaseTools +# +# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR> +# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# + +## Import Modules +# + +# for class function +class cached_class_function(object): + def __init__(self, function): + self._function = function + def __get__(self, obj, cls): + def CallMeHere(*args,**kwargs): + Value = self._function(obj, *args,**kwargs) + obj.__dict__[self._function.__name__] = lambda *args,**kwargs:Value + return Value + return CallMeHere + +# for class property +class cached_property(object): + def __init__(self, function): + self._function = function + def __get__(self, obj, cls): + Value = obj.__dict__[self._function.__name__] = self._function(obj) + return Value + +# for non-class function +class cached_basic_function(object): + def __init__(self, function): + self._function = function + # wrapper to call _do since <class>.__dict__ doesn't support changing __call__ + def __call__(self,*args,**kwargs): + return self._do(*args,**kwargs) + def _do(self,*args,**kwargs): + Value = self._function(*args,**kwargs) + self.__dict__['_do'] = lambda self,*args,**kwargs:Value + return Value |