identifiers: Add DeviceIdBox and ServerNameBox

ruma-identifiers/CHANGELOG.md

@@ -7,6 +7,7 @@ Breaking changes:
 Improvements:
 
 * Add `DeviceKeyId::from_parts` and `ServerKeyId::from_parts`
+* Add `DeviceIdBox` and `ServerNameBox` type aliases
 
 # 0.17.4
 

ruma-identifiers/src/device_id.rs

@@ -17,6 +17,9 @@ use crate::generate_localpart;
 #[cfg_attr(feature = "serde", derive(serde1::Serialize), serde(transparent, crate = "serde1"))]
 pub struct DeviceId(str);
 
+/// An owned device identifier.
+pub type DeviceIdBox = Box<DeviceId>;
+
 impl DeviceId {
     #[allow(clippy::transmute_ptr_to_ptr)]
     fn from_borrowed(s: &str) -> &Self {

ruma-identifiers/src/lib.rs

@@ -16,9 +16,16 @@ use serde1::de::{self, Deserialize as _, Deserializer, Unexpected};
 
 #[doc(inline)]
 pub use crate::{
-    device_id::DeviceId, device_key_id::DeviceKeyId, event_id::EventId, room_alias_id::RoomAliasId,
-    room_id::RoomId, room_id_or_room_alias_id::RoomIdOrAliasId, room_version_id::RoomVersionId,
-    server_key_id::ServerKeyId, server_name::ServerName, user_id::UserId,
+    device_id::{DeviceId, DeviceIdBox},
+    device_key_id::DeviceKeyId,
+    event_id::EventId,
+    room_alias_id::RoomAliasId,
+    room_id::RoomId,
+    room_id_or_room_alias_id::RoomIdOrAliasId,
+    room_version_id::RoomVersionId,
+    server_key_id::ServerKeyId,
+    server_name::{ServerName, ServerNameBox},
+    user_id::UserId,
 };
 #[doc(inline)]
 pub use ruma_identifiers_validation::{

ruma-identifiers/src/server_name.rs

@@ -17,6 +17,9 @@ use crate::Error;
 #[cfg_attr(feature = "serde", derive(serde1::Serialize), serde(transparent, crate = "serde1"))]
 pub struct ServerName(str);
 
+/// An owned server name.
+pub type ServerNameBox = Box<ServerName>;
+
 impl ServerName {
     #[allow(clippy::transmute_ptr_to_ptr)]
     fn from_borrowed(s: &str) -> &Self {