move core::pdu and core::state_res into core::matrix::

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/matrix/event.rs

@@ -0,0 +1,102 @@
+use std::{
+	borrow::Borrow,
+	fmt::{Debug, Display},
+	hash::Hash,
+	sync::Arc,
+};
+
+use ruma::{EventId, MilliSecondsSinceUnixEpoch, RoomId, UserId, events::TimelineEventType};
+use serde_json::value::RawValue as RawJsonValue;
+
+/// Abstraction of a PDU so users can have their own PDU types.
+pub trait Event {
+	type Id: Clone + Debug + Display + Eq + Ord + Hash + Send + Borrow<EventId>;
+
+	/// The `EventId` of this event.
+	fn event_id(&self) -> &Self::Id;
+
+	/// The `RoomId` of this event.
+	fn room_id(&self) -> &RoomId;
+
+	/// The `UserId` of this event.
+	fn sender(&self) -> &UserId;
+
+	/// The time of creation on the originating server.
+	fn origin_server_ts(&self) -> MilliSecondsSinceUnixEpoch;
+
+	/// The event type.
+	fn event_type(&self) -> &TimelineEventType;
+
+	/// The event's content.
+	fn content(&self) -> &RawJsonValue;
+
+	/// The state key for this event.
+	fn state_key(&self) -> Option<&str>;
+
+	/// The events before this event.
+	// Requires GATs to avoid boxing (and TAIT for making it convenient).
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_;
+
+	/// All the authenticating events for this event.
+	// Requires GATs to avoid boxing (and TAIT for making it convenient).
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_;
+
+	/// If this event is a redaction event this is the event it redacts.
+	fn redacts(&self) -> Option<&Self::Id>;
+}
+
+impl<T: Event> Event for &T {
+	type Id = T::Id;
+
+	fn event_id(&self) -> &Self::Id { (*self).event_id() }
+
+	fn room_id(&self) -> &RoomId { (*self).room_id() }
+
+	fn sender(&self) -> &UserId { (*self).sender() }
+
+	fn origin_server_ts(&self) -> MilliSecondsSinceUnixEpoch { (*self).origin_server_ts() }
+
+	fn event_type(&self) -> &TimelineEventType { (*self).event_type() }
+
+	fn content(&self) -> &RawJsonValue { (*self).content() }
+
+	fn state_key(&self) -> Option<&str> { (*self).state_key() }
+
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+		(*self).prev_events()
+	}
+
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+		(*self).auth_events()
+	}
+
+	fn redacts(&self) -> Option<&Self::Id> { (*self).redacts() }
+}
+
+impl<T: Event> Event for Arc<T> {
+	type Id = T::Id;
+
+	fn event_id(&self) -> &Self::Id { (**self).event_id() }
+
+	fn room_id(&self) -> &RoomId { (**self).room_id() }
+
+	fn sender(&self) -> &UserId { (**self).sender() }
+
+	fn origin_server_ts(&self) -> MilliSecondsSinceUnixEpoch { (**self).origin_server_ts() }
+
+	fn event_type(&self) -> &TimelineEventType { (**self).event_type() }
+
+	fn content(&self) -> &RawJsonValue { (**self).content() }
+
+	fn state_key(&self) -> Option<&str> { (**self).state_key() }
+
+	fn prev_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+		(**self).prev_events()
+	}
+
+	fn auth_events(&self) -> impl DoubleEndedIterator<Item = &Self::Id> + Send + '_ {
+		(**self).auth_events()
+	}
+
+	fn redacts(&self) -> Option<&Self::Id> { (**self).redacts() }
+}