Add default factory

jamsocket · May 5, 2024 · efef543 · efef543
1 parent 868373f
commit efef543
Showing 1 changed file with 18 additions and 1 deletion.
diff --git a/stateroom/src/lib.rs b/stateroom/src/lib.rs
@@ -63,7 +63,7 @@
 //!     }
 //! }
 
-use std::sync::Arc;
+use std::{convert::Infallible, sync::Arc};
 
 pub use client_id::ClientId;
 pub use message_recipient::MessageRecipient;
@@ -137,3 +137,20 @@ pub trait StateroomServiceFactory: Send + Sync + 'static {
         context: Arc<impl StateroomContext>,
     ) -> Result<Self::Service, Self::Error>;
 }
+
+pub struct DefaultStateroomFactory<T: StateroomService + Default> {
+    _marker: std::marker::PhantomData<T>,
+}
+
+impl<T: StateroomService + Default> StateroomServiceFactory for DefaultStateroomFactory<T> {
+    type Service = T;
+    type Error = Infallible;
+
+    fn build(
+        &self,
+        _: &str,
+        _: Arc<impl StateroomContext>,
+    ) -> Result<Self::Service, Self::Error> {
+        Ok(T::default())
+    }
+}