| """ | |
| Methods related to notifications. | |
| """ | |
| import warnings | |
| from cupyx import _ufunc_config | |
| def _init_warnings(): | |
| FallbackWarning = type('FallbackWarning', (Warning,), {}) | |
| warnings.simplefilter(action='always', category=FallbackWarning) | |
| return FallbackWarning | |
| def _dispatch_notification(func, cupy_support=False): | |
| """ | |
| Dispatch notifications using appropriate dispatch type. | |
| """ | |
| dispatch_type = _ufunc_config.get_config_fallback_mode() | |
| _module = getattr(func, '__module__', None) | |
| _name = getattr(func, '__name__', None) | |
| if not cupy_support: | |
| if _name and _module: | |
| msg = "'{}' method not in cupy, falling back to '{}.{}'".format( | |
| _name, _module, _name) | |
| elif _name: | |
| msg = "'{}' method not in cupy, ".format(_name) | |
| msg += "falling back to its numpy implementation" | |
| else: | |
| msg = "This method is not available in cupy, " | |
| msg += "falling back to numpy" | |
| if _name: | |
| raise_msg = "'{}' method not found in cupy".format(_name) | |
| else: | |
| raise_msg = "This method is not available in cupy" | |
| else: | |
| if _name and _module: | |
| msg = "'{}' method is available in cupy but ".format(_name) | |
| msg += "cannot be used, falling back to '{}.{}'".format( | |
| _module, _name) | |
| elif _name: | |
| msg = "'{}' method is available in cupy but ".format(_name) | |
| msg += "cannot be used, falling back to its numpy implementation" | |
| else: | |
| msg = "This method is available in cupy, but cannot be used" | |
| msg += "falling back to numpy" | |
| if _name: | |
| raise_msg = "'{}' method is available in cupy ".format(_name) | |
| raise_msg += "but cannot be used" | |
| else: | |
| raise_msg = "This method is available in cupy but cannot be used" | |
| if dispatch_type == 'print': | |
| print("Warning: {}".format(msg)) | |
| elif dispatch_type == 'warn': | |
| warnings.warn(msg, FallbackWarning, stacklevel=3) | |
| elif dispatch_type == 'ignore': | |
| pass | |
| elif dispatch_type == 'raise': | |
| raise AttributeError(raise_msg) | |
| else: | |
| assert False | |
| FallbackWarning = _init_warnings() | |