From e094b5c47df6eb0dedf41f5b113d4eaccb969861 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franti=C5=A1ek=20Boh=C3=A1=C4=8Dek?=
 <fandabohacek@gmail.com>
Date: Sun, 8 Jan 2023 19:33:34 +0100
Subject: [PATCH] feat(packets): prevent duplicit usings inside source
 generator

---
 .../PacketConverterGenerator.cs                   | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/Packets/NosSmooth.PacketSerializersGenerator/PacketConverterGenerator.cs b/Packets/NosSmooth.PacketSerializersGenerator/PacketConverterGenerator.cs
index 91b89bcfc0fe9895f5cebcbd4c5e38c0afcf3b5a..733f03104d19333fd0f3efd6a02cff5ab7c75169 100644
--- a/Packets/NosSmooth.PacketSerializersGenerator/PacketConverterGenerator.cs
+++ b/Packets/NosSmooth.PacketSerializersGenerator/PacketConverterGenerator.cs
@@ -41,18 +41,21 @@ public class PacketConverterGenerator
     {
         var usings = _packetInfo.PacketRecord.SyntaxTree.GetRoot()
             .DescendantNodes()
-            .OfType<UsingDirectiveSyntax>();
-        var usingsString = string.Join("\n", usings.Select(x => x.ToString()));
+            .OfType<UsingDirectiveSyntax>()
+            .Select(x => x.ToString())
+            .ToList();
+        usings.Add($"using {_packetInfo.Namespace};");
+        usings.Add("using NosSmooth.PacketSerializer.Abstractions.Errors;");
+        usings.Add("using NosSmooth.PacketSerializer.Abstractions;");
+        usings.Add("using Remora.Results;");
+
+        var usingsString = string.Join("\n", usings.Distinct());
         textWriter.WriteLine
         (
             @$"// <auto-generated/>
 #nullable enable
 #pragma warning disable 1591
 
-using {_packetInfo.Namespace};
-using NosSmooth.PacketSerializer.Abstractions.Errors;
-using NosSmooth.PacketSerializer.Abstractions;
-using Remora.Results;
 {usingsString}
 
 namespace {_packetInfo.Namespace}.Generated;