VimPlug/django-stubs
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move to plugin common api, move to new functioncontext api

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Maxim Kurnikov
2018-12-19 02:41:28 +03:00
parent c9ad40d7e3
commit 094b8421ab
8 changed files with 46 additions and 308 deletions
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53
mypy_django_plugin/main.py
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@@ -1,11 +1,11 @@
import os
from typing import Callable, Optional, cast
from typing import Callable, Optional, cast, Dict
from mypy.checker import TypeChecker
from mypy.nodes import TypeInfo
from mypy.options import Options
from mypy.plugin import Plugin, FunctionContext, ClassDefContext, AnalyzeTypeContext
from mypy.plugin import Plugin, FunctionContext, ClassDefContext
from mypy.types import Type, Instance
from mypy.typevars import fill_typevars
from mypy_django_plugin import helpers, monkeypatch
from mypy_django_plugin.plugins.fields import determine_type_of_array_field
@@ -14,17 +14,17 @@ from mypy_django_plugin.plugins.related_fields import extract_to_parameter_as_ge
from mypy_django_plugin.plugins.settings import DjangoConfSettingsInitializerHook
base_model_classes = {helpers.MODEL_CLASS_FULLNAME}
manager_subclasses = set()
def transform_model_class(ctx: ClassDefContext) -> None:
base_model_classes.add(ctx.cls.fullname)
sym = ctx.api.lookup_fully_qualified(helpers.MODEL_CLASS_FULLNAME)
if sym is not None and isinstance(sym.node, TypeInfo):
sym.node.metadata['django']['model_bases'][ctx.cls.fullname] = 1
process_model_class(ctx)
def add_new_manager_subclass(ctx: ClassDefContext) -> None:
manager_subclasses.add(ctx.cls.fullname)
def transform_manager_class(ctx: ClassDefContext) -> None:
sym = ctx.api.lookup_fully_qualified_or_none(helpers.MANAGER_CLASS_FULLNAME)
if sym is not None and isinstance(sym.node, TypeInfo):
sym.node.metadata['django']['manager_bases'][ctx.cls.fullname] = 1
def determine_proper_manager_type(ctx: FunctionContext) -> Type:
@@ -52,7 +52,6 @@ class DjangoPlugin(Plugin):
def __init__(self,
options: Options) -> None:
super().__init__(options)
monkeypatch.replace_apply_function_plugin_method()
monkeypatch.make_inner_classes_with_inherit_from_any_compatible_with_each_other()
self.django_settings = os.environ.get('DJANGO_SETTINGS_MODULE')
@@ -63,6 +62,28 @@ class DjangoPlugin(Plugin):
monkeypatch.restore_original_load_graph()
monkeypatch.restore_original_dependencies_handling()
def get_current_model_bases(self) -> Dict[str, int]:
model_sym = self.lookup_fully_qualified(helpers.MODEL_CLASS_FULLNAME)
if model_sym is not None and isinstance(model_sym.node, TypeInfo):
if 'django' not in model_sym.node.metadata:
model_sym.node.metadata['django'] = {
'model_bases': {helpers.MODEL_CLASS_FULLNAME: 1}
}
return model_sym.node.metadata['django']['model_bases']
else:
return {}
def get_current_manager_bases(self) -> Dict[str, int]:
manager_sym = self.lookup_fully_qualified(helpers.MANAGER_CLASS_FULLNAME)
if manager_sym is not None and isinstance(manager_sym.node, TypeInfo):
if 'django' not in manager_sym.node.metadata:
manager_sym.node.metadata['django'] = {
'manager_bases': {helpers.MANAGER_CLASS_FULLNAME: 1}
}
return manager_sym.node.metadata['django']['manager_bases']
else:
return {}
def get_function_hook(self, fullname: str
) -> Optional[Callable[[FunctionContext], Type]]:
if fullname in {helpers.FOREIGN_KEY_FULLNAME,
@@ -73,20 +94,22 @@ class DjangoPlugin(Plugin):
if fullname == 'django.contrib.postgres.fields.array.ArrayField':
return determine_type_of_array_field
if fullname in manager_subclasses:
manager_bases = self.get_current_manager_bases()
if fullname in manager_bases:
return determine_proper_manager_type
return None
def get_base_class_hook(self, fullname: str
) -> Optional[Callable[[ClassDefContext], None]]:
if fullname in base_model_classes:
if fullname in self.get_current_model_bases():
return transform_model_class
if fullname == helpers.DUMMY_SETTINGS_BASE_CLASS:
return DjangoConfSettingsInitializerHook(settings_module=self.django_settings)
if fullname in helpers.MANAGER_CLASSES:
return add_new_manager_subclass
if fullname in self.get_current_manager_bases():
return transform_manager_class
return None