1 files changed, 6 insertions, 6 deletions
diff --git a/src/content/usecases/KeymapUseCase.ts b/src/content/usecases/KeymapUseCase.ts
index f7de334..fab13f5 100644
--- a/src/content/usecases/KeymapUseCase.ts
+++ b/src/content/usecases/KeymapUseCase.ts
@@ -36,13 +36,13 @@ export default class KeymapUseCase {
   }
 
   // eslint-disable-next-line max-statements
-  nextOps(key: Key): operations.Operation[] {
+  nextOps(key: Key): { count: number, op: operations.Operation } | null {
     let sequence = this.repository.enqueueKey(key);
     let baseSequence = sequence.trimNumericPrefix();
     if (baseSequence.length() === 1 && this.blacklistKey(key)) {
       // ignore if the input starts with black list keys
       this.repository.clear();
-      return [];
+      return null;
     }
 
     let keymaps = this.keymapEntityMap();
@@ -53,21 +53,21 @@ export default class KeymapUseCase {
         sequence.length() === matched[0][0].length()) {
       // keys are matched with an operation
       this.repository.clear();
-      return [matched[0][1]];
+      return { count: 1, op: matched[0][1] };
     } else if (
       baseMatched.length === 1 &&
         baseSequence.length() === baseMatched[0][0].length()) {
       // keys are matched with an operation with a numeric prefix
       this.repository.clear();
-      return Array(sequence.repeatCount()).fill(baseMatched[0][1]);
+      return { count: sequence.repeatCount(), op: baseMatched[0][1] };
     } else if (matched.length >= 1 || baseMatched.length >= 1) {
       // keys are matched with an operation's prefix
-      return [];
+      return null;
     }
 
     // matched with no operations
     this.repository.clear();
-    return [];
+    return null;
   }
 
   private keymapEntityMap(): [KeySequence, operations.Operation][] {