From ac228a5316ca9ef3e6dc8935acad5f6442952c3c Mon Sep 17 00:00:00 2001
From: Vincent Chan <okcdz@diverse.space>
Date: Mon, 18 Jul 2022 20:13:33 +0800
Subject: [PATCH] refactor: better abstract style

---
 .../flowy_editor/lib/document/text_delta.dart   | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/frontend/app_flowy/packages/flowy_editor/lib/document/text_delta.dart b/frontend/app_flowy/packages/flowy_editor/lib/document/text_delta.dart
index ede7d65882..2f3d194255 100644
--- a/frontend/app_flowy/packages/flowy_editor/lib/document/text_delta.dart
+++ b/frontend/app_flowy/packages/flowy_editor/lib/document/text_delta.dart
@@ -10,17 +10,11 @@ import './attributes.dart';
 const int _maxInt = 9007199254740991;
 
 abstract class TextOperation {
-  bool get isEmpty {
-    return length == 0;
-  }
+  bool get isEmpty => length == 0;
 
-  int get length {
-    return 0;
-  }
+  int get length;
 
-  Attributes? get attributes {
-    return null;
-  }
+  Attributes? get attributes => null;
 
   Map<String, dynamic> toJson();
 }
@@ -130,11 +124,6 @@ class TextDelete extends TextOperation {
 
   TextDelete(int length) : _length = length;
 
-  @override
-  bool get isEmpty {
-    return length == 0;
-  }
-
   @override
   int get length {
     return _length;