# Path: wiring/interface.py
# class InterfaceComplianceError(Exception):
# class MissingAttributeError(InterfaceComplianceError):
# class MethodValidationError(InterfaceComplianceError):
# class Attribute(object):
# class Method(Attribute):
# class InterfaceMetaclass(type):
# class Interface(object):
#     def __init__(self, attribute_name):
#     def __str__(self):
#     def __init__(self, function, expected_argspec, observed_argspec):
#     def __str__(self):
#     def __init__(self, docstring=None):
#     def __repr__(self):
#     def __init__(self, argument_specification, docstring=None):
#     def __repr__(self):
#     def check_compliance(self, function):
#     def __new__(cls, interface_name, bases, attributes):
#     def _is_interface_class(cls, other_class):
#     def check_compliance(cls, instance):
# def get_implemented_interfaces(cls):
# def set_implemented_interfaces(cls, interfaces):
# def add_implemented_interfaces(cls, interfaces):
# def implements(*interfaces):
#     def wrapper(cls):
# def implements_only(*interfaces):
#     def wrapper(cls):
# def isimplementation(obj, interfaces):
# 
# Path: wiring/dependency.py
# def get_dependencies(factory):
#     """
#     This function inspects a function to find its arguments marked for
#     injection, either with :py:func:`inject()` decorator,
#     :py:class:`UnrealizedInjection` class of through Python 3 function
#     annotations.  If `factory` is a class, then its constructor is inspected.
# 
#     Returned dictionary is a mapping of::
# 
#         [argument index/name] -> [specification]
# 
#     For example, dependencies for function::
# 
#         @inject(ILogger, db=(IDBConnection, 'archive'))
#         def foo(log, db=None):
#             pass
# 
#     would be::
# 
#         {
#             0: ILogger,
#             'db': (IDBConnection, 'archive'),
#         }
# 
#     `Old-style classes`_ (from before Python 2.2) are not supported.
# 
#     .. _Old-style classes:
#         https://docs.python.org/2/reference/datamodel.html#new-style-and-classic-classes
#     """
#     if inspect.isclass(factory):
#         # If factory is a class we want to check constructor depdendencies.
#         if six.PY3:
#             init_check = inspect.isfunction
#         else:
#             init_check = inspect.ismethod
#         dependencies = {}
#         if hasattr(factory, '__init__') and init_check(factory.__init__):
#             dependencies.update(get_dependencies(factory.__init__))
#         if hasattr(factory, '__new__') and inspect.isfunction(factory.__new__):
#             dependencies.update(get_dependencies(factory.__new__))
#         return dependencies
#     elif inspect.isfunction(factory) or inspect.ismethod(factory):
#         function = factory
#     else:
#         raise TypeError("`factory` must be a class or a function.")
# 
#     if hasattr(function, '__injection__'):
#         # Function has precollected dependencies (happens when using `inject()`
#         # decorator. Nothing to do here.
#         return function.__injection__
# 
#     dependencies = {}
# 
#     def process_dependency_tuples(tuples):
#         for key, value in tuples:
#             if isinstance(value, UnrealizedInjection):
#                 dependencies[key] = value.specification
#     if six.PY3:
#         argument_specification = inspect.getfullargspec(function)
#         if argument_specification.kwonlydefaults:
#             process_dependency_tuples(
#                 six.iteritems(argument_specification.kwonlydefaults)
#             )
#         if argument_specification.annotations:
#             dependencies.update(argument_specification.annotations)
#     else:
#         argument_specification = inspect.getargspec(function)
#     if argument_specification.defaults:
#         process_dependency_tuples(zip(
#             reversed(argument_specification.args),
#             reversed(argument_specification.defaults)
#         ))
#     return dependencies


import copy
import functools
from wiring import interface
from wiring.dependency import get_dependencies
    def __call__(self, *args, **kwargs):
        return self.factory(*args, **kwargs)


@interface.implements(IProvider)
class FunctionProvider(ProviderBase):
    """
    A :term:`provider` that wraps a :py:attr:`function` to provide a version of
    it with automatically injected dependencies, as defined in
    :py:attr:`dependencies` attribute.

    For example::

        def get_user(id, db_connection=injected('db_connection')):
            return db_connection.sql(
                'SELECT * FROM users WHERE id = :id',
                id=id
            )

        graph = Graph()
        graph.register_instance('db_connection', connection)
        graph.register_provider('get_user', FunctionProvider(get_user))

        # Database connection is automatically injected from the object graph,
        # but we provide `id` manually.
        user = graph.get('get_user')(12)
    """

    def __init__(self, function, scope=None):
        super(FunctionProvider, self).__init__()

# Path: wiring/interface.py
# class InterfaceComplianceError(Exception):
# class MissingAttributeError(InterfaceComplianceError):
# class MethodValidationError(InterfaceComplianceError):
# class Attribute(object):
# class Method(Attribute):
# class InterfaceMetaclass(type):
# class Interface(object):
#     def __init__(self, attribute_name):
#     def __str__(self):
#     def __init__(self, function, expected_argspec, observed_argspec):
#     def __str__(self):
#     def __init__(self, docstring=None):
#     def __repr__(self):
#     def __init__(self, argument_specification, docstring=None):
#     def __repr__(self):
#     def check_compliance(self, function):
#     def __new__(cls, interface_name, bases, attributes):
#     def _is_interface_class(cls, other_class):
#     def check_compliance(cls, instance):
# def get_implemented_interfaces(cls):
# def set_implemented_interfaces(cls, interfaces):
# def add_implemented_interfaces(cls, interfaces):
# def implements(*interfaces):
#     def wrapper(cls):
# def implements_only(*interfaces):
#     def wrapper(cls):
# def isimplementation(obj, interfaces):
# 
# Path: wiring/dependency.py
# def get_dependencies(factory):
#     """
#     This function inspects a function to find its arguments marked for
#     injection, either with :py:func:`inject()` decorator,
#     :py:class:`UnrealizedInjection` class of through Python 3 function
#     annotations.  If `factory` is a class, then its constructor is inspected.
# 
#     Returned dictionary is a mapping of::
# 
#         [argument index/name] -> [specification]
# 
#     For example, dependencies for function::
# 
#         @inject(ILogger, db=(IDBConnection, 'archive'))
#         def foo(log, db=None):
#             pass
# 
#     would be::
# 
#         {
#             0: ILogger,
#             'db': (IDBConnection, 'archive'),
#         }
# 
#     `Old-style classes`_ (from before Python 2.2) are not supported.
# 
#     .. _Old-style classes:
#         https://docs.python.org/2/reference/datamodel.html#new-style-and-classic-classes
#     """
#     if inspect.isclass(factory):
#         # If factory is a class we want to check constructor depdendencies.
#         if six.PY3:
#             init_check = inspect.isfunction
#         else:
#             init_check = inspect.ismethod
#         dependencies = {}
#         if hasattr(factory, '__init__') and init_check(factory.__init__):
#             dependencies.update(get_dependencies(factory.__init__))
#         if hasattr(factory, '__new__') and inspect.isfunction(factory.__new__):
#             dependencies.update(get_dependencies(factory.__new__))
#         return dependencies
#     elif inspect.isfunction(factory) or inspect.ismethod(factory):
#         function = factory
#     else:
#         raise TypeError("`factory` must be a class or a function.")
# 
#     if hasattr(function, '__injection__'):
#         # Function has precollected dependencies (happens when using `inject()`
#         # decorator. Nothing to do here.
#         return function.__injection__
# 
#     dependencies = {}
# 
#     def process_dependency_tuples(tuples):
#         for key, value in tuples:
#             if isinstance(value, UnrealizedInjection):
#                 dependencies[key] = value.specification
#     if six.PY3:
#         argument_specification = inspect.getfullargspec(function)
#         if argument_specification.kwonlydefaults:
#             process_dependency_tuples(
#                 six.iteritems(argument_specification.kwonlydefaults)
#             )
#         if argument_specification.annotations:
#             dependencies.update(argument_specification.annotations)
#     else:
#         argument_specification = inspect.getargspec(function)
#     if argument_specification.defaults:
#         process_dependency_tuples(zip(
#             reversed(argument_specification.args),
#             reversed(argument_specification.defaults)
#         ))
#     return dependencies


# Path: wiring/providers.py
import copy
import functools
from wiring import interface
from wiring.dependency import get_dependencies

    def __call__(self, *args, **kwargs):
        return self.factory(*args, **kwargs)


@interface.implements(IProvider)
class FunctionProvider(ProviderBase):
    """
    A :term:`provider` that wraps a :py:attr:`function` to provide a version of
    it with automatically injected dependencies, as defined in
    :py:attr:`dependencies` attribute.

    For example::

        def get_user(id, db_connection=injected('db_connection')):
            return db_connection.sql(
                'SELECT * FROM users WHERE id = :id',
                id=id
            )

        graph = Graph()
        graph.register_instance('db_connection', connection)
        graph.register_provider('get_user', FunctionProvider(get_user))

        # Database connection is automatically injected from the object graph,
        # but we provide `id` manually.
        user = graph.get('get_user')(12)
    """

    def __init__(self, function, scope=None):
        super(FunctionProvider, self).__init__()

        self.dependencies = get_dependencies(function)