From c5a111207feda675f26dfb2056f0b80c3775badf Mon Sep 17 00:00:00 2001
From: Tyrrrz <tyrrrz@gmail.com>
Date: Thu, 25 Mar 2021 06:01:46 +0200
Subject: [PATCH] Seal attributes

---
 CliFx/Attributes/CommandAttribute.cs          | 2 +-
 CliFx/Attributes/CommandOptionAttribute.cs    | 2 +-
 CliFx/Attributes/CommandParameterAttribute.cs | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CliFx/Attributes/CommandAttribute.cs b/CliFx/Attributes/CommandAttribute.cs
index 23f5d2f..6030895 100644
--- a/CliFx/Attributes/CommandAttribute.cs
+++ b/CliFx/Attributes/CommandAttribute.cs
@@ -6,7 +6,7 @@ namespace CliFx.Attributes
     /// Annotates a type that defines a command.
     /// </summary>
     [AttributeUsage(AttributeTargets.Class, Inherited = false)]
-    public class CommandAttribute : Attribute
+    public sealed class CommandAttribute : Attribute
     {
         /// <summary>
         /// Command's name.
diff --git a/CliFx/Attributes/CommandOptionAttribute.cs b/CliFx/Attributes/CommandOptionAttribute.cs
index d2092fb..369a96b 100644
--- a/CliFx/Attributes/CommandOptionAttribute.cs
+++ b/CliFx/Attributes/CommandOptionAttribute.cs
@@ -7,7 +7,7 @@ namespace CliFx.Attributes
     /// Annotates a property that defines a command option.
     /// </summary>
     [AttributeUsage(AttributeTargets.Property)]
-    public class CommandOptionAttribute : Attribute
+    public sealed class CommandOptionAttribute : Attribute
     {
         /// <summary>
         /// Option name.
diff --git a/CliFx/Attributes/CommandParameterAttribute.cs b/CliFx/Attributes/CommandParameterAttribute.cs
index b226212..5012028 100644
--- a/CliFx/Attributes/CommandParameterAttribute.cs
+++ b/CliFx/Attributes/CommandParameterAttribute.cs
@@ -7,7 +7,7 @@ namespace CliFx.Attributes
     /// Annotates a property that defines a command parameter.
     /// </summary>
     [AttributeUsage(AttributeTargets.Property)]
-    public class CommandParameterAttribute : Attribute
+    public sealed class CommandParameterAttribute : Attribute
     {
         /// <summary>
         /// Parameter order.