Method apply_message_fields

compiler/fory_compiler/ir/validator.py:306–323

(
            message: Message,
            enclosing_messages: Optional[List[Message]] = None,
        )

    def _apply_field_defaults(self) -> None:
        def apply_message_fields(
            message: Message,
            enclosing_messages: Optional[List[Message]] = None,
        ) -> None:
            lineage = (enclosing_messages or []) + [message]
            for field in message.fields:
                if self.schema.source_format == "fdl" and field.tag_id is None:
                    field.tag_id = field.number
                if self._is_message_type(field.field_type, lineage):
                    explicit_optional = field.optional
                    if self.schema.source_format == "fdl" and explicit_optional:
                        self._error(
                            "Message fields are always optional; remove the optional modifier",
                            field.location,
                        )
                    field.optional = True
            for nested_msg in message.nested_messages:
                apply_message_fields(nested_msg, lineage)

        for message in self.schema.messages:
            apply_message_fields(message)