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- """:mod:`wirerope.wire` --- end-point instant for each bound method
- ===================================================================
- """
- import six
- import types
- from .callable import Descriptor
- from ._compat import functools
- __all__ = 'Wire',
- @functools.singledispatch
- def descriptor_bind(descriptor, obj, type_):
- binder = Descriptor(descriptor).detect_binder(obj, type_)
- return binder(descriptor, obj, type_)
- @descriptor_bind.register(types.FunctionType)
- def descriptor_bind_function(descriptor, obj, type):
- return obj, obj
- class Wire(object):
- """The core data object for each function for bound method.
- Inherit this class to implement your own Wire classes.
- - For normal functions, each function is directly wrapped by **Wire**.
- - For any methods or descriptors (including classmethod, staticmethod),
- each one is wrapped by :class:`wirerope.rope.MethodRopeMixin`
- and it creates **Wire** object for each bound object.
- """
- __slots__ = (
- '_rope', '_callable', '_binding', '__func__', '_owner',
- '_bound_objects')
- def __init__(self, rope, owner, binding):
- self._rope = rope
- self._callable = rope.callable
- self._owner = owner
- self._binding = binding
- if binding:
- func = self._callable.wrapped_object.__get__
- if self._callable.is_property:
- wrapped = functools.partial(func, *binding)
- if six.PY2:
- # functools.wraps requires those attributes but
- # py2 functools.partial doesn't have them
- wrapped.__module__ = owner.__module__
- wrapped.__name__ = func.__name__
- self.__func__ = wrapped
- else:
- self.__func__ = func(*binding)
- else:
- self.__func__ = self._callable.wrapped_object
- if self._binding is None:
- self._bound_objects = ()
- else:
- _, binder = descriptor_bind(
- self._callable.wrapped_object, *self._binding)
- if binder is not None:
- self._bound_objects = (binder, )
- else:
- self._bound_objects = ()
- assert callable(self.__func__), self.__func__
- if rope._wrapped:
- functools.wraps(self.__func__)(self)
- def _on_property(self):
- return self.__func__()
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