Remove EventKind trait.

src/lib.rs

@@ -30,12 +30,6 @@ pub struct Event<T> where T: Deserialize + Serialize {
     pub extra_content: Option<Value>,
 }
 
-/// A type that represents a kind of Matrix event.
-///
-/// The event kinds are basic events, room events, and state events.
-/// This trait can be useful to constrain a generic parameter that must be a Matrix event.
-pub trait EventKind: Deserialize + Serialize {}
-
 /// The type of an event.
 #[derive(Debug, Deserialize, Serialize)]
 pub enum EventType {
@@ -119,10 +113,6 @@ pub struct StateEvent<T> where T: Deserialize + Serialize {
     pub user_id: String,
 }
 
-impl<T> EventKind for Event<T> where T: Deserialize + Serialize {}
-impl<T> EventKind for RoomEvent<T> where T: Deserialize + Serialize {}
-impl<T> EventKind for StateEvent<T> where T: Deserialize + Serialize {}
-
 impl Display for EventType {
     fn fmt(&self, f: &mut Formatter) -> Result<(), FmtError> {
         let event_type_str = match *self {

src/presence.rs

@@ -1,6 +1,6 @@
 //! Types for the *m.presence* event.
 
-use {EventKind, EventType};
+use EventType;
 
 /// Informs the client of a user's presence state change.
 #[derive(Debug, Deserialize, Serialize)]
@@ -38,5 +38,3 @@ pub enum PresenceState {
     /// Connected to the service but not available for chat.
     Unavailable,
 }
-
-impl EventKind for PresenceEvent {}

src/receipt.rs

@@ -2,7 +2,7 @@
 
 use std::collections::HashMap;
 
-use {EventKind, EventType};
+use EventType;
 
 /// Informs the client of new receipts.
 #[derive(Debug, Deserialize, Serialize)]
@@ -37,5 +37,3 @@ pub struct Receipt {
     /// The timestamp the receipt was sent at.
     pub ts: u64,
 }
-
-impl EventKind for ReceiptEvent {}

src/typing.rs

@@ -1,6 +1,6 @@
 //! Types for the *m.typing* event.
 
-use {EventKind, EventType};
+use EventType;
 
 /// Informs the client of the list of users currently typing.
 #[derive(Debug, Deserialize, Serialize)]
@@ -19,5 +19,3 @@ pub struct TypingEventContent {
     /// The list of user IDs typing in this room, if any.
     pub user_ids: Vec<String>,
 }
-
-impl EventKind for TypingEvent {}