Add serialize_by_alias and namedtuple_as_dict dialect options

README.md

@@ -387,10 +387,10 @@ to override some settings if necessary.
 > As for codecs, you are
 > offered to choose between convenience and efficiency. When you need to decode
 > or encode structured data more than once, it's highly recommended to create
-> a decoder or encoder specifically for that structure. For one-time use with
-> default settings it may be convenient to use global functions that create
-> a disposable decoder or encoder under the hood. Be aware not to use these
-> convenient global functions in performance-critical code!
+> and reuse a decoder or encoder specifically for that structure. For one-time
+> use with default settings it may be convenient to use global functions that
+> create a disposable decoder or encoder under the hood. Be aware not to use
+> these convenient global functions multiple times for the same structure.
 
 ### Basic form
 

mashumaro/codecs/_builder.py

@@ -82,7 +82,7 @@ def add_encode_method(
                     builder=self,
                     field_ctx=FieldContext(name="", metadata={}),
                     could_be_none=could_be_none,
-                    no_copy_collections=self._get_dialect_or_config_option(
+                    no_copy_collections=self.get_dialect_or_config_option(
                         "no_copy_collections", ()
                     ),
                 )

mashumaro/config.py

@@ -41,7 +41,9 @@ class BaseConfig:
     serialize_by_alias: Union[
         bool, Literal[Sentinel.MISSING]
     ] = Sentinel.MISSING
-    namedtuple_as_dict: bool = False
+    namedtuple_as_dict: Union[
+        bool, Literal[Sentinel.MISSING]
+    ] = Sentinel.MISSING
     allow_postponed_evaluation: bool = True
     dialect: Optional[Type[Dialect]] = None
     omit_none: Union[bool, Literal[Sentinel.MISSING]] = Sentinel.MISSING

mashumaro/core/meta/code/builder.py

@@ -719,15 +719,15 @@ def get_pack_method_default_flag_values(
             TO_DICT_ADD_OMIT_NONE_FLAG, cls
         )
         if omit_none_feature:
-            omit_none = self._get_dialect_or_config_option("omit_none", False)
+            omit_none = self.get_dialect_or_config_option("omit_none", False)
             kw_param_names.append("omit_none")
             kw_param_values.append("True" if omit_none else "False")
 
         by_alias_feature = self.is_code_generation_option_enabled(
             TO_DICT_ADD_BY_ALIAS_FLAG, cls
         )
         if by_alias_feature:
-            serialize_by_alias = self._get_dialect_or_config_option(
+            serialize_by_alias = self.get_dialect_or_config_option(
                 "serialize_by_alias", False, cls
             )
             kw_param_names.append("by_alias")
@@ -886,11 +886,11 @@ def _add_pack_method_lines(self, method_name: str) -> None:
             omit_none_feature = self.is_code_generation_option_enabled(
                 TO_DICT_ADD_OMIT_NONE_FLAG
             )
-            serialize_by_alias = self._get_dialect_or_config_option(
+            serialize_by_alias = self.get_dialect_or_config_option(
                 "serialize_by_alias", False
             )
-            omit_none = self._get_dialect_or_config_option("omit_none", False)
-            omit_default = self._get_dialect_or_config_option(
+            omit_none = self.get_dialect_or_config_option("omit_none", False)
+            omit_default = self.get_dialect_or_config_option(
                 "omit_default", False
             )
             force_value = omit_default
@@ -1080,7 +1080,7 @@ def __pack_method_set_value(
             with self.indent("else:"):
                 self.add_line(f"kwargs['{fname}'] = {packed_value}")
         else:
-            serialize_by_alias = self._get_dialect_or_config_option(
+            serialize_by_alias = self.get_dialect_or_config_option(
                 "serialize_by_alias", False
             )
             if serialize_by_alias and alias is not None:
@@ -1213,7 +1213,7 @@ def _get_field_packer(
                     metadata=metadata,
                 ),
                 could_be_none=False,
-                no_copy_collections=self._get_dialect_or_config_option(
+                no_copy_collections=self.get_dialect_or_config_option(
                     "no_copy_collections", ()
                 ),
             )
@@ -1246,7 +1246,7 @@ def __iter_serialization_strategies(
         if self.default_dialect is not None:
             yield self.default_dialect.serialization_strategy.get(ftype)
 
-    def _get_dialect_or_config_option(
+    def get_dialect_or_config_option(
         self,
         option: str,
         default: typing.Any,

mashumaro/core/meta/types/pack.py

@@ -614,7 +614,9 @@ def pack_named_tuple(spec: ValueSpec) -> Expression:
     }
     fields = getattr(spec.type, "_fields", ())
     packers = []
-    as_dict = spec.builder.get_config().namedtuple_as_dict
+    as_dict = spec.builder.get_dialect_or_config_option(
+        "namedtuple_as_dict", False
+    )
     serialize_option = get_overridden_serialization_method(spec)
     if serialize_option is not None:
         if serialize_option == "as_dict":

mashumaro/core/meta/types/unpack.py

@@ -954,7 +954,9 @@ def unpack_named_tuple(spec: ValueSpec) -> Expression:
     fields = getattr(spec.type, "_fields", ())
     defaults = getattr(spec.type, "_field_defaults", {})
     unpackers = []
-    as_dict = spec.builder.get_config().namedtuple_as_dict
+    as_dict = spec.builder.get_dialect_or_config_option(
+        "namedtuple_as_dict", False
+    )
     deserialize_option = get_overridden_deserialization_method(spec)
     if deserialize_option is not None:
         if deserialize_option == "as_dict":

mashumaro/dialect.py

@@ -16,6 +16,13 @@
 
 class Dialect:
     serialization_strategy: Dict[Any, SerializationStrategyValueType] = {}
+    # TODO: надо в документацию добавить про новые опции
+    serialize_by_alias: Union[
+        bool, Literal[Sentinel.MISSING]
+    ] = Sentinel.MISSING
+    namedtuple_as_dict: Union[
+        bool, Literal[Sentinel.MISSING]
+    ] = Sentinel.MISSING
     omit_none: Union[bool, Literal[Sentinel.MISSING]] = Sentinel.MISSING
     omit_default: Union[bool, Literal[Sentinel.MISSING]] = Sentinel.MISSING
     no_copy_collections: Union[

mashumaro/jsonschema/schema.py

@@ -212,6 +212,16 @@ def get_owner_config(self) -> Type[BaseConfig]:
         else:
             return BaseConfig
 
+    def get_owner_dialect_or_config_option(
+        self, option: str, default: Any
+    ) -> Any:
+        if self.__owner_builder:
+            return self.__owner_builder.get_dialect_or_config_option(
+                option, default
+            )
+        else:
+            return default
+
     def get_self_config(self) -> Type[BaseConfig]:
         if self.__self_builder:
             return self.__self_builder.get_config()
@@ -606,7 +616,9 @@ def on_named_tuple(instance: Instance, ctx: Context) -> JSONSchema:
     }
     fields = getattr(instance.type, "_fields", ())
     defaults = getattr(instance.type, "_field_defaults", {})
-    as_dict = instance.get_owner_config().namedtuple_as_dict
+    as_dict = instance.get_owner_dialect_or_config_option(
+        "namedtuple_as_dict", False
+    )
     serialize_option = instance.get_overridden_serialization_method()
     if serialize_option == "as_dict":
         as_dict = True