131 pub enum SingularFieldFlag {  enum
138 impl SingularFieldFlag {  impl
141             SingularFieldFlag::WithFlag { required, .. } => required,  in is_required()
142             SingularFieldFlag::WithoutFlag => false,  in is_required()
149     pub flag: SingularFieldFlag,
156             SingularFieldFlag::WithFlag { .. } => match self.elem.proto_type() {  in rust_storage_type()
167             SingularFieldFlag::WithoutFlag => self.elem.rust_storage_type(),  in rust_storage_type()
492                 SingularFieldFlag::WithoutFlag  in parse()
494                 SingularFieldFlag::WithFlag {  in parse()
859                 flag: SingularFieldFlag::WithoutFlag,  in accessor_fn()
879                 flag: SingularFieldFlag::WithFlag { .. },  in accessor_fn()
1087                 flag: SingularFieldFlag::WithFlag { .. },  in write_if_let_self_field_is_some()
1106                 flag: SingularFieldFlag::WithoutFlag,  in write_if_let_self_field_is_some()
1187                 flag: SingularFieldFlag::WithFlag { .. },  in write_self_field_assign_some()
1196                 flag: SingularFieldFlag::WithoutFlag,  in write_self_field_assign_some()
1212                 let wrapped = if *flag == SingularFieldFlag::WithoutFlag {  in write_self_field_assign_value()
1337                 flag: SingularFieldFlag::WithFlag { .. },  in write_merge_from_field_message_string_bytes()
1341                 flag: SingularFieldFlag::WithoutFlag,  in write_merge_from_field_message_string_bytes()
1438                     SingularFieldFlag::WithFlag { .. } => "proto2",  in write_merge_from_singular()
1439                     SingularFieldFlag::WithoutFlag => "proto3",  in write_merge_from_singular()
1680                     flag: SingularFieldFlag::WithFlag { .. },  in write_message_field_get_singular()
1703                     flag: SingularFieldFlag::WithoutFlag,  in write_message_field_get_singular()
1758                 flag: SingularFieldFlag::WithFlag { .. },  in has_has()
1762                 flag: SingularFieldFlag::WithoutFlag,  in has_has()
1862                     flag: SingularFieldFlag::WithFlag { .. },  in write_message_field_mut()
1872                     flag: SingularFieldFlag::WithoutFlag,  in write_message_field_mut()
1964                     flag: SingularFieldFlag::WithFlag { .. },  in write_message_field_take()
1981                     flag: SingularFieldFlag::WithoutFlag,  in write_message_field_take()