Remove unnecessary parenthesis (#118)

analysis_options.yaml

@@ -12,3 +12,4 @@ linter:
     - avoid_redundant_argument_values
     - prefer_const_constructors
     - prefer_const_constructors_in_immutables
+    - unnecessary_parenthesis

lib/models/documents/document.dart

@@ -144,11 +144,11 @@ class Document {
     try {
       _delta = _delta.compose(delta);
     } catch (e) {
-      throw ('_delta compose failed');
+      throw '_delta compose failed';
     }
 
     if (_delta != _root.toDelta()) {
-      throw ('Compose failed');
+      throw 'Compose failed';
     }
     final change = Tuple3(originalDelta, delta, changeSource);
     _observer.add(change);

lib/models/documents/nodes/leaf.dart

@@ -26,7 +26,7 @@ abstract class Leaf extends Node {
 
   @override
   void applyStyle(Style value) {
-    assert((value.isInline || value.isIgnored || value.isEmpty),
+    assert(value.isInline || value.isIgnored || value.isEmpty,
         'Unable to apply Style to leaf: $value');
     super.applyStyle(value);
   }

lib/models/quill_delta.dart

@@ -118,7 +118,7 @@ class Operation {
   bool get isRetain => key == Operation.retainKey;
 
   /// Returns `true` if this operation has no attributes, e.g. is plain text.
-  bool get isPlain => (_attributes == null || _attributes!.isEmpty);
+  bool get isPlain => _attributes == null || _attributes!.isEmpty;
 
   /// Returns `true` if this operation sets at least one attribute.
   bool get isNotPlain => !isPlain;

lib/models/rules/rule.dart

@@ -67,6 +67,6 @@ class Rules {
         rethrow;
       }
     }
-    throw ('Apply rules failed');
+    throw 'Apply rules failed';
   }
 }

lib/utils/color.dart

@@ -115,7 +115,7 @@ Color stringToColor(String? s) {
   }
 
   if (!s.startsWith('#')) {
-    throw ('Color code not supported');
+    throw 'Color code not supported';
   }
 
   String hex = s.replaceFirst('#', '');

lib/utils/diff_delta.dart

@@ -79,11 +79,11 @@ int getPositionDelta(Delta user, Delta actual) {
     Operation userOperation = userItr.next(length as int);
     Operation actualOperation = actualItr.next(length);
     if (userOperation.length != actualOperation.length) {
-      throw ('userOp ' +
+      throw 'userOp ' +
           userOperation.length.toString() +
           ' does not match ' +
           ' actualOp ' +
-          actualOperation.length.toString());
+          actualOperation.length.toString();
     }
     if (userOperation.key == actualOperation.key) {
       continue;

lib/widgets/editor.dart

@@ -371,7 +371,7 @@ class _QuillEditorSelectionGestureDetectorBuilder
         );
         break;
       default:
-        throw ('Invalid platform');
+        throw 'Invalid platform';
     }
   }
 
@@ -522,7 +522,7 @@ class _QuillEditorSelectionGestureDetectorBuilder
           Feedback.forLongPress(_state.context);
           break;
         default:
-          throw ('Invalid platform');
+          throw 'Invalid platform';
       }
     }
   }
@@ -964,7 +964,7 @@ class RenderEditableContainerBox extends RenderBox
       targetChild = childAfter(targetChild);
     }
     if (targetChild == null) {
-      throw ('targetChild should not be null');
+      throw 'targetChild should not be null';
     }
     return targetChild;
   }
@@ -994,7 +994,7 @@ class RenderEditableContainerBox extends RenderBox
       dy += child.size.height;
       child = childAfter(child);
     }
-    throw ('No child');
+    throw 'No child';
   }
 
   @override

lib/widgets/raw_editor.dart

@@ -650,7 +650,7 @@ class RawEditorState extends EditorState
         case 3:
           return defaultStyles!.h3!.verticalSpacing;
         default:
-          throw ('Invalid level $level');
+          throw 'Invalid level $level';
       }
     }
 

lib/widgets/text_block.dart

@@ -219,7 +219,7 @@ class EditableTextBlock extends StatelessWidget {
           bottom = defaultStyles.h3!.verticalSpacing.item2;
           break;
         default:
-          throw ('Invalid level $level');
+          throw 'Invalid level $level';
       }
     } else {
       late Tuple2 lineSpacing;
@@ -497,7 +497,7 @@ class RenderEditableTextBlock extends RenderEditableContainerBox
         offset.translate(decorationPadding.left, decorationPadding.top);
     _painter!.paint(context.canvas, decorationOffset, filledConfiguration);
     if (debugSaveCount != context.canvas.getSaveCount()) {
-      throw ('${_decoration.runtimeType} painter had mismatching save and restore calls.');
+      throw '${_decoration.runtimeType} painter had mismatching save and restore calls.';
     }
     if (decoration.isComplex) {
       context.setIsComplexHint();

lib/widgets/text_line.dart

@@ -552,7 +552,7 @@ class RenderEditableTextLine extends RenderEditableBox {
             Rect.fromLTWH(0.0, 2.0, cursorWidth, cursorHeight - 4.0);
         break;
       default:
-        throw ('Invalid platform');
+        throw 'Invalid platform';
     }
   }
 
@@ -733,7 +733,7 @@ class RenderEditableTextLine extends RenderEditableBox {
     if (_body != null) {
       final parentData = _body!.parentData as BoxParentData;
       final effectiveOffset = offset + parentData.offset;
-      if ((enableInteractiveSelection) &&
+      if (enableInteractiveSelection &&
           line.getDocumentOffset() <= textSelection.end &&
           textSelection.start <= line.getDocumentOffset() + line.length - 1) {
         final local = localSelection(line, textSelection, false);
@@ -862,7 +862,7 @@ class _TextLineElement extends RenderObjectElement {
         renderObject.setLeading(child);
         break;
       case TextLineSlot.BODY:
-        renderObject.setBody((child) as RenderContentProxyBox?);
+        renderObject.setBody(child as RenderContentProxyBox?);
         break;
       default:
         throw UnimplementedError();

lib/widgets/text_selection.dart

@@ -104,8 +104,8 @@ class EditorTextSelectionOverlay {
 
   Widget _buildHandle(
       BuildContext context, _TextSelectionHandlePosition position) {
-    if ((_selection.isCollapsed &&
-        position == _TextSelectionHandlePosition.END)) {
+    if (_selection.isCollapsed &&
+        position == _TextSelectionHandlePosition.END) {
       return Container();
     }
     return Visibility(
@@ -153,7 +153,7 @@ class EditorTextSelectionOverlay {
             : const TextPosition(offset: 0);
         break;
       default:
-        throw ('Invalid position');
+        throw 'Invalid position';
     }
     selectionDelegate.textEditingValue =
         value.copyWith(selection: newSelection, composing: TextRange.empty);

lib/widgets/toolbar.dart

@@ -865,9 +865,11 @@ class ClearFormatButton extends StatefulWidget {
 
   final QuillController controller;
 
-  const ClearFormatButton(
-      {required this.icon, required this.controller, Key? key,})
-      : super(key: key);
+  const ClearFormatButton({
+    required this.icon,
+    required this.controller,
+    Key? key,
+  }) : super(key: key);
 
   @override
   _ClearFormatButtonState createState() => _ClearFormatButtonState();