Add a field metadata indicating if the field is repeated (#46)

* Add a field metadata indicating if the field is repeated

* Increase version number

Author: AdrienVannson

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "betterproto2"
-version = "0.1.1"
+version = "0.1.2"
 description = "A better Protobuf / gRPC generator & library"
 authors = ["Adrien Vannson <[email protected]>", "Daniel G. Taylor <[email protected]>"]
 readme = "README.md"

src/betterproto2/__init__.py

@@ -185,6 +185,8 @@ class FieldMetadata:
     wraps: Optional[str] = None
     # Is the field optional
     optional: Optional[bool] = False
+    # Is the field repeated
+    repeated: Optional[bool] = False
 
     @staticmethod
     def get(field: dataclasses.Field) -> "FieldMetadata":
@@ -234,7 +236,7 @@ def field(
 
     return dataclasses.field(
         default_factory=default_factory,
-        metadata={"betterproto": FieldMetadata(number, proto_type, map_types, group, wraps, optional)},
+        metadata={"betterproto": FieldMetadata(number, proto_type, map_types, group, wraps, optional, repeated)},
     )
 
 
@@ -962,9 +964,8 @@ def to_dict(self, casing: Casing = Casing.CAMEL, include_default_values: bool =
         """
         output: Dict[str, Any] = {}
         field_types = self._type_hints()
-        defaults = self._betterproto.default_gen
         for field_name, meta in self._betterproto.meta_by_field_name.items():
-            field_is_repeated = defaults[field_name] is list
+            field_is_repeated = meta.repeated
             value = getattr(self, field_name)
             cased_name = casing(field_name).rstrip("_")  # type: ignore
             if meta.proto_type == TYPE_MESSAGE:
@@ -1204,9 +1205,8 @@ def to_pydict(self, casing: Casing = Casing.CAMEL, include_default_values: bool
             The python dict representation of this object.
         """
         output: Dict[str, Any] = {}
-        defaults = self._betterproto.default_gen
         for field_name, meta in self._betterproto.meta_by_field_name.items():
-            field_is_repeated = defaults[field_name] is list
+            field_is_repeated = meta.repeated
             value = getattr(self, field_name)
             cased_name = casing(field_name).rstrip("_")  # type: ignore
             if meta.proto_type == TYPE_MESSAGE: