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'''
Decorators are not really values, however we need some wrappers to improve
docstrings and other things around decorators.
'''
from jedi.inference.base_value import ValueWrapper, ValueSet
class Decoratee(ValueWrapper):
def __init__(self, wrapped_value, original_value):
super().__init__(wrapped_value)
self._original_value = original_value
def py__doc__(self):
return self._original_value.py__doc__()
def py__get__(self, instance, class_value):
return ValueSet(
Decoratee(v, self._original_value)
for v in self._wrapped_value.py__get__(instance, class_value)
)
def get_signatures(self):
signatures = self._wrapped_value.get_signatures()
if signatures:
return signatures
# Fallback to signatures of the original function/class if the
# decorator has no signature or it is not inferrable.
#
# __get__ means that it's a descriptor. In that case we don't return
# signatures, because they are usually properties.
if not self._wrapped_value.py__getattribute__('__get__'):
return self._original_value.get_signatures()
return []
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