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Add spike for providers copying

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This commit is contained in:
Roman Mogilatov 2016-04-10 17:14:11 +03:00
parent b4b93b4016
commit fde062b9fc
2 changed files with 15 additions and 3 deletions
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5
dependency_injector/catalogs/utils.py
View File

@ -2,8 +2,7 @@
import six import six
from copy import deepcopy from dependency_injector.utils import _copy_providers
from dependency_injector.errors import UndefinedProviderError from dependency_injector.errors import UndefinedProviderError
@ -40,7 +39,7 @@ def copy(catalog):
else: else:
memo[id(source_provider)] = provider memo[id(source_provider)] = provider
copied_catalog.bind_providers(deepcopy(catalog.providers, memo), copied_catalog.bind_providers(_copy_providers(catalog.providers, memo),
force=True) force=True)
return copied_catalog return copied_catalog

13
dependency_injector/utils.py
View File

@ -1,6 +1,8 @@
"""Utils module.""" """Utils module."""
import sys import sys
import copy
import types
import threading import threading
import six import six
@ -20,6 +22,12 @@ if _IS_PYPY or six.PY3: # pragma: no cover
else: # pragma: no cover else: # pragma: no cover
_OBJECT_INIT = None _OBJECT_INIT = None
if six.PY2: # pragma: no cover
copy._deepcopy_dispatch[types.MethodType] = \
lambda obj, memo: type(obj)(obj.im_func,
copy.deepcopy(obj.im_self, memo),
obj.im_class)
def is_provider(instance): def is_provider(instance):
"""Check if instance is provider instance. """Check if instance is provider instance.
@ -245,3 +253,8 @@ def fetch_cls_init(cls):
return None return None
else: else:
return cls_init return cls_init
def _copy_providers(providers, memo=None):
"""Make full copy of providers dictionary."""
return copy.deepcopy(providers, memo)