Add Flags attribute to "KnownBitmask" enums

Author: Exanite

.silktouch/ce8a69a66cd3bd3f.stout

@@ -1801,18 +1801,28 @@ private class Rewriter(JobData job, ILogger logger) : CSharpSyntaxRewriter(true)
 
         public override SyntaxNode? VisitEnumDeclaration(EnumDeclarationSyntax node)
         {
-            var iden = node.Identifier.ToString();
-            iden = iden.Replace("FlagBits", "Flags");
+            var identifier = node.Identifier.ToString();
+            identifier = identifier.Replace("FlagBits", "Flags");
 
             if (
-                job.Groups.ContainsKey(iden)
+                job.Groups.TryGetValue(identifier, out var group)
                 && !node.Ancestors().OfType<BaseTypeDeclarationSyntax>().Any()
             )
             {
-                AlreadyPresentGroups.Add(iden);
+                AlreadyPresentGroups.Add(identifier);
+
+                if (group.KnownBitmask)
+                {
+                    // Add [Flags] attribute
+                    var flagsAttribute = AttributeList(
+                        SingletonSeparatedList(
+                            Attribute(IdentifierName("Flags"))));
+
+                    node = node.WithAttributeLists(node.AttributeLists.Add(flagsAttribute));
+                }
             }
 
-            return base.VisitEnumDeclaration(node.WithIdentifier(Identifier(iden)));
+            return base.VisitEnumDeclaration(node.WithIdentifier(Identifier(identifier)));
         }
 
         public override SyntaxNode? VisitFieldDeclaration(FieldDeclarationSyntax node)

sources/SilkTouch/SilkTouch/Mods/MixKhronosData.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum AccessFlags2 : ulong
 {
     None = unchecked((ulong)0UL),

sources/Vulkan/Vulkan/Enums/AccessFlags2.gen.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum AccessFlags3KHR : ulong
 {
     Access3NoneKHR = unchecked((ulong)0UL),

sources/Vulkan/Vulkan/Enums/AccessFlags3KHR.gen.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum BufferUsageFlags2 : ulong
 {
     TransferSrcBit = unchecked((ulong)0x00000001UL),

sources/Vulkan/Vulkan/Enums/BufferUsageFlags2.gen.cs

@@ -10,4 +10,5 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum ExportMetalObjectTypeFlagsEXT : uint { }

sources/Vulkan/Vulkan/Enums/ExportMetalObjectTypeFlagsEXT.gen.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum FormatFeatureFlags2 : ulong
 {
     SampledImageBit = unchecked((ulong)0x00000001UL),

sources/Vulkan/Vulkan/Enums/FormatFeatureFlags2.gen.cs

@@ -10,4 +10,5 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum ImageConstraintsInfoFlagsFuchsia : uint { }

sources/Vulkan/Vulkan/Enums/ImageConstraintsInfoFlagsFuchsia.gen.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum MemoryDecompressionMethodFlagsNV : ulong
 {
     Gdeflate1X0BitNV = unchecked((ulong)0x00000001UL),

sources/Vulkan/Vulkan/Enums/MemoryDecompressionMethodFlagsNV.gen.cs

@@ -10,6 +10,7 @@
 namespace Silk.NET.Vulkan;
 
 [Transformed]
+[Flags]
 public enum PhysicalDeviceSchedulingControlsFlagsARM : ulong
 {
     ShaderCoreCountARM = unchecked((ulong)0x00000001UL),