From 87056611b3a32731804bcd3713194f2104c5ac84 Mon Sep 17 00:00:00 2001
From: Ajil Oommen <ajilo297@gmail.com>
Date: Wed, 19 Jun 2024 23:21:40 +0530
Subject: [PATCH] Use sealed class for DottedBorderOptions

---
 lib/dotted_border.dart             | 14 ++++++++------
 lib/src/dotted_border_options.dart | 14 +++++++++++---
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/lib/dotted_border.dart b/lib/dotted_border.dart
index 2a25cfb..660703b 100644
--- a/lib/dotted_border.dart
+++ b/lib/dotted_border.dart
@@ -26,13 +26,15 @@ class DottedBorder extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final radius = options is RoundedRectDottedBorderOptions
-        ? (options as RoundedRectDottedBorderOptions).radius
-        : Radius.zero;
+    final radius = switch (options) {
+      RoundedRectDottedBorderOptions options => options.radius,
+      _ => Radius.zero,
+    };
 
-    final customPath = options is CustomPathDottedBorderOptions
-        ? (options as CustomPathDottedBorderOptions).customPath
-        : null;
+    final customPath = switch (options) {
+      CustomPathDottedBorderOptions options => options.customPath,
+      _ => null,
+    };
 
     return Stack(
       fit: options.stackFit,
diff --git a/lib/src/dotted_border_options.dart b/lib/src/dotted_border_options.dart
index e17166f..c40f386 100644
--- a/lib/src/dotted_border_options.dart
+++ b/lib/src/dotted_border_options.dart
@@ -5,7 +5,14 @@ import 'enums.dart';
 typedef PathBuilder = Path Function(Size size);
 
 /// Provides options for customising the dotted border.
-abstract base class DottedBorderOptions {
+///
+/// Allowed border options:
+/// - [CustomPathDottedBorderOptions]
+/// - [RoundedRectDottedBorderOptions]
+/// - [RectDottedBorderOptions]
+/// - [CircularDottedBorderOptions]
+/// - [OvalDottedBorderOptions]
+sealed class DottedBorderOptions {
   const DottedBorderOptions({
     required this.borderType,
     this.padding = const EdgeInsets.all(2),
@@ -38,10 +45,11 @@ abstract base class DottedBorderOptions {
   /// `[1, 1]` will draw a dash and a gap of 1 unit each.
   final List<double> dashPattern;
 
-  /// The stroke cap of the dotted border
+  /// The [strokeCap] will determine the shape of the line endings for the
+  /// border
   final StrokeCap strokeCap;
 
-  /// The fit provided to the containing [Stack]
+  /// The fit provided to the parent stack
   final StackFit stackFit;
 
   /// The type of border to be drawn