events: Remove Serialize implementations for event enums

crates/ruma-events-macros/src/event_enum.rs

@@ -63,8 +63,6 @@ fn expand_event_enum(
     variants: &[EventEnumVariant],
     ruma_events: &TokenStream,
 ) -> TokenStream {
-    let serde = quote! { #ruma_events::exports::serde };
-
     let event_struct = kind.to_event_ident(var);
     let ident = kind.to_event_enum_ident(var);
 
@@ -78,8 +76,7 @@ fn expand_event_enum(
 
     quote! {
         #( #attrs )*
-        #[derive(Clone, Debug, #serde::Serialize)]
-        #[serde(untagged)]
+        #[derive(Clone, Debug)]
         #[allow(clippy::large_enum_variant)]
         #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
         pub enum #ident {
@@ -377,8 +374,7 @@ fn expand_possibly_redacted_enum(
 
     quote! {
         /// An enum that holds either regular un-redacted events or redacted events.
-        #[derive(Clone, Debug, #serde::Serialize)]
-        #[serde(untagged)]
+        #[derive(Clone, Debug)]
         #[allow(clippy::exhaustive_enums)]
         pub enum #ident {
             /// An un-redacted event.

crates/ruma-events/src/enums.rs

@@ -2,7 +2,7 @@ use ruma_common::MilliSecondsSinceUnixEpoch;
 use ruma_events_macros::{event_enum, EventEnumFromEvent};
 use ruma_identifiers::{EventId, RoomId, RoomVersionId, UserId};
 use ruma_serde::from_raw_json_value;
-use serde::{de, Deserialize, Serialize};
+use serde::{de, Deserialize};
 use serde_json::value::RawValue as RawJsonValue;
 
 use crate::{
@@ -123,8 +123,7 @@ macro_rules! room_ev_accessor {
 
 /// Any room event.
 #[allow(clippy::large_enum_variant, clippy::exhaustive_enums)]
-#[derive(Clone, Debug, Serialize, EventEnumFromEvent)]
-#[serde(untagged)]
+#[derive(Clone, Debug, EventEnumFromEvent)]
 pub enum AnyRoomEvent {
     /// Any message event.
     Message(AnyMessageEvent),
@@ -150,8 +149,7 @@ impl AnyRoomEvent {
 ///
 /// Sync room events are room event without a `room_id`, as returned in `/sync` responses.
 #[allow(clippy::large_enum_variant, clippy::exhaustive_enums)]
-#[derive(Clone, Debug, Serialize, EventEnumFromEvent)]
-#[serde(untagged)]
+#[derive(Clone, Debug, EventEnumFromEvent)]
 pub enum AnySyncRoomEvent {
     /// Any sync message event.
     Message(AnySyncMessageEvent),

crates/ruma-events/tests/event_enums.rs

@@ -1,15 +1,12 @@
-use assign::assign;
 use js_int::{uint, UInt};
 use matches::assert_matches;
 use ruma_common::MilliSecondsSinceUnixEpoch;
-use ruma_identifiers::{event_id, mxc_uri, room_id, user_id};
-use serde_json::{from_value as from_json_value, json, to_value as to_json_value};
+use ruma_identifiers::{event_id, room_id, user_id};
+use serde_json::{from_value as from_json_value, json};
 
 use ruma_events::{
     call::{answer::CallAnswerEventContent, SessionDescription, SessionDescriptionType},
-    room::{ImageInfo, ThumbnailInfo},
-    sticker::StickerEventContent,
-    AnyMessageEvent, MessageEvent, Unsigned,
+    AnyMessageEvent, MessageEvent,
 };
 
 #[test]
@@ -65,59 +62,3 @@ fn deserialize_message_event() {
             && unsigned.is_empty()
     );
 }
-
-#[test]
-fn serialize_message_event() {
-    let aliases_event = AnyMessageEvent::Sticker(MessageEvent {
-        content: StickerEventContent::new(
-            "Hello".into(),
-            assign!(ImageInfo::new(), {
-                height: UInt::new(423),
-                width: UInt::new(1011),
-                mimetype: Some("image/png".into()),
-                size: UInt::new(84242),
-                thumbnail_info: Some(Box::new(assign!(ThumbnailInfo::new(), {
-                    width: UInt::new(800),
-                    height: UInt::new(334),
-                    mimetype: Some("image/png".into()),
-                    size: UInt::new(82595),
-                }))),
-                thumbnail_url: Some(mxc_uri!("mxc://matrix.org/mnrsnsRRS787TSts").to_owned()),
-            }),
-            mxc_uri!("mxc://matrix.org/arsrns98rsRSR").to_owned(),
-        ),
-        event_id: event_id!("$h29iv0s8:example.com").to_owned(),
-        origin_server_ts: MilliSecondsSinceUnixEpoch(uint!(1)),
-        room_id: room_id!("!roomid:room.com").to_owned(),
-        sender: user_id!("@carl:example.com").to_owned(),
-        unsigned: Unsigned::default(),
-    });
-
-    let actual = to_json_value(&aliases_event).unwrap();
-    let expected = json!({
-        "content": {
-            "body": "Hello",
-            "info": {
-                "h": 423,
-                "mimetype": "image/png",
-                "size": 84242,
-                "thumbnail_info": {
-                "h": 334,
-                "mimetype": "image/png",
-                "size": 82595,
-                "w": 800
-                },
-                "thumbnail_url": "mxc://matrix.org/mnrsnsRRS787TSts",
-                "w": 1011
-            },
-            "url": "mxc://matrix.org/arsrns98rsRSR"
-        },
-        "event_id": "$h29iv0s8:example.com",
-        "origin_server_ts": 1,
-        "room_id": "!roomid:room.com",
-        "sender": "@carl:example.com",
-        "type": "m.sticker",
-    });
-
-    assert_eq!(actual, expected);
-}

crates/ruma-events/tests/message_event.rs

@@ -242,12 +242,8 @@ fn deserialize_message_then_convert_to_full() {
 
     let sync_ev: AnySyncMessageEvent = from_json_value(json_data).unwrap();
 
-    // Test conversion method
-    let full = sync_ev.into_full_event(rid.to_owned());
-    let full_json = to_json_value(full).unwrap();
-
     assert_matches!(
-        from_json_value::<AnyMessageEvent>(full_json).unwrap(),
+        sync_ev.into_full_event(rid.to_owned()),
         AnyMessageEvent::CallAnswer(MessageEvent {
             content: CallAnswerEventContent {
                 answer: SessionDescription {

crates/ruma-events/tests/state_event.rs

@@ -287,12 +287,8 @@ fn deserialize_full_event_convert_to_sync() {
 
     let full_ev: AnyStateEvent = from_json_value(json_data).unwrap();
 
-    // Test conversion to sync event (without room_id field)
-    let sync: AnySyncStateEvent = full_ev.into();
-    let sync_json = to_json_value(sync).unwrap();
-
     assert_matches!(
-        from_json_value::<AnySyncStateEvent>(sync_json).unwrap(),
+        AnySyncStateEvent::from(full_ev),
         AnySyncStateEvent::RoomAliases(SyncStateEvent {
             content,
             event_id,

crates/ruma-events/tests/stripped.rs

@@ -28,26 +28,6 @@ fn serialize_stripped_state_event_any_content() {
     assert_eq!(to_json_value(&event).unwrap(), json_data);
 }
 
-#[test]
-fn serialize_stripped_state_event_any_event() {
-    let event = AnyStrippedStateEvent::RoomTopic(StrippedStateEvent {
-        content: RoomTopicEventContent::new("Testing room".into()),
-        state_key: "".into(),
-        sender: user_id!("@example:localhost").to_owned(),
-    });
-
-    let json_data = json!({
-        "content": {
-            "topic": "Testing room"
-        },
-        "type": "m.room.topic",
-        "state_key": "",
-        "sender": "@example:localhost"
-    });
-
-    assert_eq!(to_json_value(&event).unwrap(), json_data);
-}
-
 #[test]
 fn deserialize_stripped_state_events() {
     let name_event = json!({