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Refactor DeclarativeCatalog metaclass

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Roman Mogilatov 2015-11-10 15:15:48 +02:00
parent 7483e98f2b
commit 8b175f0b71
1 changed files with 15 additions and 19 deletions
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34
dependency_injector/catalog.py
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@ -63,31 +63,27 @@ class DeclarativeCatalogMetaClass(type):
def __new__(mcs, class_name, bases, attributes): def __new__(mcs, class_name, bases, attributes):
"""Declarative catalog class factory.""" """Declarative catalog class factory."""
cls_providers = dict((name, provider)
for name, provider in six.iteritems(attributes)
if is_provider(provider))
inherited_providers = dict((name, provider)
for base in bases if is_catalog(base)
for name, provider in six.iteritems(
base.providers))
providers = dict()
providers.update(cls_providers)
providers.update(inherited_providers)
cls = type.__new__(mcs, class_name, bases, attributes) cls = type.__new__(mcs, class_name, bases, attributes)
cls.cls_providers = cls_providers cls.Bundle = mcs.bundle_cls_factory(cls)
cls.inherited_providers = inherited_providers
cls.providers = providers
cls.overridden_by = tuple() cls.overridden_by = tuple()
cls.Bundle = mcs.bundle_cls_factory(cls) cls_providers = tuple((name, provider)
for name, provider in six.iteritems(attributes)
if is_provider(provider))
inherited_providers = tuple((name, provider)
for base in bases if is_catalog(base)
for name, provider in six.iteritems(
base.providers))
providers = cls_providers + inherited_providers
cls.cls_providers = dict(cls_providers)
cls.inherited_providers = dict(inherited_providers)
cls.providers = dict(providers)
cls.provider_names = dict() cls.provider_names = dict()
for name, provider in six.iteritems(providers): for name, provider in providers:
if provider in cls.provider_names: if provider in cls.provider_names:
raise Error('Provider {0} could not be bound to the same ' raise Error('Provider {0} could not be bound to the same '
'catalog (or catalogs hierarchy) more ' 'catalog (or catalogs hierarchy) more '