Remove warning about unsupported expression types (#266)

* remove warning about unsupported expression for _meta.get_field()

* lint

Author: mkurnikov

mypy_django_plugin/lib/helpers.py

@@ -259,8 +259,7 @@ def make_typeddict(api: CheckerPluginInterface, fields: 'OrderedDict[str, MypyTy
     return typed_dict_type
 
 
-def resolve_string_attribute_value(attr_expr: Expression, ctx: Union[FunctionContext, MethodContext],
-                                   django_context: 'DjangoContext') -> Optional[str]:
+def resolve_string_attribute_value(attr_expr: Expression, django_context: 'DjangoContext') -> Optional[str]:
     if isinstance(attr_expr, StrExpr):
         return attr_expr.value
 
@@ -270,8 +269,6 @@ def resolve_string_attribute_value(attr_expr: Expression, ctx: Union[FunctionCon
         if isinstance(attr_expr.expr, NameExpr) and attr_expr.expr.fullname == 'django.conf.settings':
             if hasattr(django_context.settings, member_name):
                 return getattr(django_context.settings, member_name)
-
-    ctx.api.fail(f'Expression of type {type(attr_expr).__name__!r} is not supported', ctx.context)
     return None
 
 

mypy_django_plugin/transformers/meta.py

@@ -36,7 +36,7 @@ def return_proper_field_type_from_get_field(ctx: MethodContext, django_context:
     if field_name_expr is None:
         return ctx.default_return_type
 
-    field_name = helpers.resolve_string_attribute_value(field_name_expr, ctx, django_context)
+    field_name = helpers.resolve_string_attribute_value(field_name_expr, django_context)
     if field_name is None:
         return ctx.default_return_type
 

mypy_django_plugin/transformers/querysets.py

@@ -1,5 +1,5 @@
 from collections import OrderedDict
-from typing import List, Optional, Sequence, Type, Union
+from typing import List, Optional, Sequence, Type
 
 from django.core.exceptions import FieldError
 from django.db.models.base import Model
@@ -62,7 +62,7 @@ def get_field_type_from_lookup(ctx: MethodContext, django_context: DjangoContext
 
 def get_values_list_row_type(ctx: MethodContext, django_context: DjangoContext, model_cls: Type[Model],
                              flat: bool, named: bool) -> MypyType:
-    field_lookups = resolve_field_lookups(ctx.args[0], ctx, django_context)
+    field_lookups = resolve_field_lookups(ctx.args[0], django_context)
     if field_lookups is None:
         return AnyType(TypeOfAny.from_error)
 
@@ -148,11 +148,10 @@ def extract_proper_type_queryset_values_list(ctx: MethodContext, django_context:
     return helpers.reparametrize_instance(ctx.default_return_type, [model_type, row_type])
 
 
-def resolve_field_lookups(lookup_exprs: Sequence[Expression], ctx: Union[FunctionContext, MethodContext],
-                          django_context: DjangoContext) -> Optional[List[str]]:
+def resolve_field_lookups(lookup_exprs: Sequence[Expression], django_context: DjangoContext) -> Optional[List[str]]:
     field_lookups = []
     for field_lookup_expr in lookup_exprs:
-        field_lookup = helpers.resolve_string_attribute_value(field_lookup_expr, ctx, django_context)
+        field_lookup = helpers.resolve_string_attribute_value(field_lookup_expr, django_context)
         if field_lookup is None:
             return None
         field_lookups.append(field_lookup)
@@ -172,7 +171,7 @@ def extract_proper_type_queryset_values(ctx: MethodContext, django_context: Djan
     if model_cls is None:
         return ctx.default_return_type
 
-    field_lookups = resolve_field_lookups(ctx.args[0], ctx, django_context)
+    field_lookups = resolve_field_lookups(ctx.args[0], django_context)
     if field_lookups is None:
         return AnyType(TypeOfAny.from_error)
 

scripts/enabled_test_modules.py

@@ -31,7 +31,6 @@
         re.compile(r'has no attribute ("|\')_[a-zA-Z_]+("|\')'),
         "'Settings' object has no attribute",
         '**Dict',
-        re.compile(r"Expression of type '.*' is not supported"),
         'has incompatible type "object"',
         'undefined in superclass',
         'Argument after ** must be a mapping',