Final bit of interface cleanup.

src/morethantext/mod.rs

@@ -258,16 +258,14 @@ mod mtt {
     }
 }
 
-struct Cache {
+struct Cache;
-    channel: Receiver<ToCache>,
-}
 
 impl Cache {
-    async fn new<P>(_dir: P, channel: Receiver<ToCache>) -> Result<Self, MTTError>
+    async fn new<P>(_dir: P) -> Result<Self, MTTError>
     where
         P: Into<PathBuf>,
     {
-        Ok(Self { channel: channel })
+        Ok(Self {})
     }
 
     async fn query(&self, qry: &Vec<String>) -> Result<HashMap<String, DataType>, MTTError> {
@@ -276,7 +274,7 @@ impl Cache {
             if id == ENTRY {
                 output.insert(ENTRY.to_string(), DataType::new("store"));
             } else {
-                return Err(MTTError::new("fred"))
+                return Err(MTTError::new("fred"));
             }
         }
         Ok(output)
@@ -286,9 +284,9 @@ impl Cache {
         Ok(())
     }
 
-    async fn start(&self) {
+    async fn start(&self, listener: Receiver<ToCache>) {
         loop {
-            match self.channel.recv().await.unwrap() {
+            match listener.recv().await.unwrap() {
                 ToCache::Query(qry) => {
                     match self.query(&qry.ids).await {
                         Ok(data) => qry.reply.send(FromCache::Data(data)).await.unwrap(),
@@ -318,8 +316,8 @@ mod caches {
         let (s, r) = unbounded();
         let datadir = dir.into();
         spawn(async move {
-            let cache = Cache::new(datadir, r).await.unwrap();
+            let cache = Cache::new(datadir).await.unwrap();
-            cache.start().await;
+            cache.start(r).await;
         });
         s
     }
@@ -373,7 +371,7 @@ mod caches {
         let result = r.recv().await.unwrap();
         match result {
             FromCache::Ok => (),
-            _ => assert!(false, "{:?} should have been an error.", result),
+            _ => assert!(false, "{:?} should have been an Ok.", result),
         }
     }