Raise matching floor: boundary tokenizer, stemming/folding/stopwords, boosts, snippets, engine seam

src/message.rs

@@ -102,17 +102,23 @@ pub struct ResponseBody {
 pub fn build_response(
     qid: &str,
     hits: Vec<ResponseItem>,
-    total: u64,
+    total: Option<u64>,
     max_results: usize,
 ) -> ResponseBody {
     let max_results = max_results.max(1);
     let mut results = hits;
     results.truncate(max_results);
-    let more_available = total.saturating_sub(results.len() as u64);
+    let (truncated, more_available) = match total {
+        Some(total) => {
+            let more = total.saturating_sub(results.len() as u64);
+            (more > 0, more)
+        }
+        None => (true, 0),
+    };
     ResponseBody {
         qid: qid.to_string(),
         results,
-        truncated: more_available > 0,
+        truncated,
         more_available,
         cursor: None,
     }
@@ -153,24 +159,24 @@ mod tests {
 
     #[test]
     fn max_results_is_respected() {
-        let response = build_response("q1", vec![item(1), item(2), item(3)], 10, 2);
+        let response = build_response("q1", vec![item(1), item(2), item(3)], Some(10), 2);
         assert_eq!(response.results.len(), 2);
     }
 
     #[test]
     fn truncation_is_honest() {
-        let response = build_response("q1", vec![item(1), item(2), item(3)], 10, 2);
+        let response = build_response("q1", vec![item(1), item(2), item(3)], Some(10), 2);
         assert!(response.truncated);
         assert_eq!(response.more_available, 8);
 
-        let response = build_response("q2", vec![item(1), item(2)], 2, 5);
+        let response = build_response("q2", vec![item(1), item(2)], Some(2), 5);
         assert!(!response.truncated);
         assert_eq!(response.more_available, 0);
     }
 
     #[test]
     fn response_carries_no_scores() {
-        let response = build_response("q1", vec![item(1)], 1, 5);
+        let response = build_response("q1", vec![item(1)], Some(1), 5);
         let json = serde_json::to_string(&response).unwrap();
         assert!(!json.contains("score"));
         assert!(!json.contains("relevance"));