Add RedactionEvent.

src/room/redaction.rs

@@ -1 +1,43 @@
-//! Types for the *m.room.redaction* event.
+//! Types for the *m.room.avatar* event.
+
+use core::{Event, EventType, RoomEvent};
+
+/// A redaction of an event.
+pub struct RedactionEvent<'a> {
+    content: RedactionEventContent<'a>,
+    event_id: &'a str,
+    /// The ID of the event that was redacted.
+    redacts: &'a str,
+    room_id: &'a str,
+    user_id: &'a str,
+}
+
+impl<'a, 'b> Event<'a, RedactionEventContent<'a>> for RedactionEvent<'a> {
+    fn content(&'a self) -> &'a RedactionEventContent<'a> {
+        &self.content
+    }
+
+    fn event_type(&self) -> EventType {
+        EventType::RoomRedaction
+    }
+}
+
+impl<'a> RoomEvent<'a, RedactionEventContent<'a>> for RedactionEvent<'a> {
+    fn event_id(&'a self) -> &'a str {
+        &self.event_id
+    }
+
+    fn room_id(&'a self) -> &'a str {
+        &self.room_id
+    }
+
+    fn user_id(&'a self) -> &'a str {
+        &self.user_id
+    }
+}
+
+/// The payload of a `RedactionEvent`.
+pub struct RedactionEventContent<'a> {
+    /// The reason for the redaction, if any.
+    reason: Option<&'a str>,
+}