From 7216cbd5bd095f98b3d4a5048f091f3fa9cfca08 Mon Sep 17 00:00:00 2001
From: Jonas Platte <jplatte+git@posteo.de>
Date: Fri, 17 Jul 2020 00:03:42 +0200
Subject: [PATCH] Mark CanonicalAliasEventContent as non_exhaustive

---
 ruma-events/src/lib.rs                  | 1 +
 ruma-events/src/room/canonical_alias.rs | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/ruma-events/src/lib.rs b/ruma-events/src/lib.rs
index c862d911..c0738bdb 100644
--- a/ruma-events/src/lib.rs
+++ b/ruma-events/src/lib.rs
@@ -111,6 +111,7 @@
 
 #![recursion_limit = "1024"]
 #![warn(missing_debug_implementations, missing_docs, rust_2018_idioms)]
+#![allow(clippy::new_without_default)] // lint is no good
 // Since we support Rust 1.36.0, we can't apply this suggestion yet
 #![allow(clippy::use_self)]
 // Remove this once https://github.com/rust-lang/rust/issues/54883 becomes stable
diff --git a/ruma-events/src/room/canonical_alias.rs b/ruma-events/src/room/canonical_alias.rs
index 726a56cd..1e9f514f 100644
--- a/ruma-events/src/room/canonical_alias.rs
+++ b/ruma-events/src/room/canonical_alias.rs
@@ -11,6 +11,7 @@ pub type CanonicalAliasEvent = StateEvent<CanonicalAliasEventContent>;
 
 /// The payload for `CanonicalAliasEvent`.
 #[derive(Clone, Debug, Deserialize, Serialize, StateEventContent)]
+#[non_exhaustive]
 #[ruma_event(type = "m.room.canonical_alias")]
 pub struct CanonicalAliasEventContent {
     /// The canonical alias.
@@ -29,6 +30,13 @@ pub struct CanonicalAliasEventContent {
     pub alt_aliases: Vec<RoomAliasId>,
 }
 
+impl CanonicalAliasEventContent {
+    /// Creates an empty `CanonicalAliasEventContent`.
+    pub fn new() -> Self {
+        Self { alias: None, alt_aliases: Vec::new() }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::{