Make events::to_json compile a few seconds faster

include/mtx/events.hpp

@@ -103,99 +103,7 @@ to_json(json &obj, const Event<Content> &event)
 {
         obj["content"] = event.content;
         obj["sender"]  = event.sender;
-
-        switch (event.type) {
-        case EventType::KeyVerificationStart:
-                obj["type"] = "m.key.verification.start";
-                break;
-        case EventType::KeyVerificationAccept:
-                obj["type"] = "m.key.verification.accept";
-                break;
-        case EventType::KeyVerificationMac:
-                obj["type"] = "m.key.verification.mac";
-                break;
-        case EventType::KeyVerificationKey:
-                obj["type"] = "m.key.verification.key";
-                break;
-        case EventType::KeyVerificationCancel:
-                obj["type"] = "m.key.verification.cancel";
-                break;
-        case EventType::KeyVerificationRequest:
-                obj["type"] = "m.key.verification.request";
-                break;
-        case EventType::Reaction:
-                obj["type"] = "m.reaction";
-                break;
-        case EventType::RoomKey:
-                obj["type"] = "m.room_key";
-                break;
-        case EventType::RoomKeyRequest:
-                obj["type"] = "m.room_key_request";
-                break;
-        case EventType::RoomAliases:
-                obj["type"] = "m.room.aliases";
-                break;
-        case EventType::RoomAvatar:
-                obj["type"] = "m.room.avatar";
-                break;
-        case EventType::RoomCanonicalAlias:
-                obj["type"] = "m.room.canonical_alias";
-                break;
-        case EventType::RoomCreate:
-                obj["type"] = "m.room.create";
-                break;
-        case EventType::RoomEncrypted:
-                obj["type"] = "m.room.encrypted";
-                break;
-        case EventType::RoomEncryption:
-                obj["type"] = "m.room.encryption";
-                break;
-        case EventType::RoomGuestAccess:
-                obj["type"] = "m.room.guest_access";
-                break;
-        case EventType::RoomHistoryVisibility:
-                obj["type"] = "m.room.history_visibility";
-                break;
-        case EventType::RoomJoinRules:
-                obj["type"] = "m.room.join_rules";
-                break;
-        case EventType::RoomMember:
-                obj["type"] = "m.room.member";
-                break;
-        case EventType::RoomMessage:
-                obj["type"] = "m.room.message";
-                break;
-        case EventType::RoomName:
-                obj["type"] = "m.room.name";
-                break;
-        case EventType::RoomPowerLevels:
-                obj["type"] = "m.room.power_levels";
-                break;
-        case EventType::RoomTopic:
-                obj["type"] = "m.room.topic";
-                break;
-        case EventType::RoomRedaction:
-                obj["type"] = "m.room.redaction";
-                break;
-        case EventType::RoomPinnedEvents:
-                obj["type"] = "m.room.pinned_events";
-                break;
-        case EventType::RoomTombstone:
-                obj["type"] = "m.room.tombstone";
-                break;
-        case EventType::Sticker:
-                obj["type"] = "m.sticker";
-                break;
-        case EventType::Tag:
-                obj["type"] = "m.tag";
-                break;
-        case EventType::PushRules:
-                obj["type"] = "m.push_rules";
-                break;
-        case EventType::Unsupported:
-        default:
-                break;
-        }
+        obj["type"]    = ::mtx::events::to_string(event.type);
 }
 
 template<class Content>