From 5a3dba7c121e6ebc529da8bf7a7a3d29401b53d7 Mon Sep 17 00:00:00 2001
From: wtfsck <wtfsck@protonmail.com>
Date: Thu, 15 Jul 2021 21:56:37 +0200
Subject: [PATCH] Update rust deprec writer to not deprecate the enum if some
 feature is passed in

---
 .../Rust/RustDeprecatedWriter.cs              | 26 +++++++++++++------
 .../Enums/Rust/RustEnumsGenerator.cs          |  2 +-
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/src/csharp/Intel/Generator/Documentation/Rust/RustDeprecatedWriter.cs b/src/csharp/Intel/Generator/Documentation/Rust/RustDeprecatedWriter.cs
index f6a9d6901..c1d762f6e 100644
--- a/src/csharp/Intel/Generator/Documentation/Rust/RustDeprecatedWriter.cs
+++ b/src/csharp/Intel/Generator/Documentation/Rust/RustDeprecatedWriter.cs
@@ -12,29 +12,35 @@ namespace Generator.Documentation.Rust {
 		public RustDeprecatedWriter(IdentifierConverter idConverter) =>
 			this.idConverter = idConverter;
 
-		public override void WriteDeprecated(FileWriter writer, EnumValue value) {
+		public override void WriteDeprecated(FileWriter writer, EnumValue value) =>
+			WriteDeprecated(writer, value, null);
+
+		public void WriteDeprecated(FileWriter writer, EnumValue value, string? notDeprecFeature) {
 			if (value.DeprecatedInfo.IsDeprecated) {
 				if (value.DeprecatedInfo.NewName is not null) {
 					var newValue = value.DeclaringType[value.DeprecatedInfo.NewName];
-					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, newValue.Name(idConverter), value.DeprecatedInfo.Description);
+					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, newValue.Name(idConverter), value.DeprecatedInfo.Description, notDeprecFeature);
 				}
 				else
-					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, null, value.DeprecatedInfo.Description);
+					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, null, value.DeprecatedInfo.Description, notDeprecFeature);
 			}
 		}
 
-		public override void WriteDeprecated(FileWriter writer, Constant value) {
+		public override void WriteDeprecated(FileWriter writer, Constant value) =>
+			WriteDeprecated(writer, value, null);
+
+		public void WriteDeprecated(FileWriter writer, Constant value, string? notDeprecFeature) {
 			if (value.DeprecatedInfo.IsDeprecated) {
 				if (value.DeprecatedInfo.NewName is not null) {
 					var newValue = value.DeclaringType[value.DeprecatedInfo.NewName];
-					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, newValue.Name(idConverter), value.DeprecatedInfo.Description);
+					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, newValue.Name(idConverter), value.DeprecatedInfo.Description, notDeprecFeature);
 				}
 				else
-					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, null, value.DeprecatedInfo.Description);
+					WriteDeprecated(writer, value.DeprecatedInfo.VersionStr, null, value.DeprecatedInfo.Description, notDeprecFeature);
 			}
 		}
 
-		static void WriteDeprecated(FileWriter writer, string version, string? newName, string? description) {
+		static void WriteDeprecated(FileWriter writer, string version, string? newName, string? description, string? notDeprecFeature) {
 			string extra;
 			if (description is not null)
 				extra = description;
@@ -42,7 +48,11 @@ namespace Generator.Documentation.Rust {
 				extra = $"Use {newName} instead";
 			else
 				extra = "Don't use it!";
-			writer.WriteLine($"#[deprecated(since = \"{version}\", note = \"{extra}\")]");
+			var deprecatedAttr = $"deprecated(since = \"{version}\", note = \"{extra}\")";
+			if (notDeprecFeature is not null)
+				writer.WriteLine($"#[cfg_attr(not(feature = \"{notDeprecFeature}\"), {deprecatedAttr})]");
+			else
+				writer.WriteLine($"#[{deprecatedAttr}]");
 		}
 	}
 }
diff --git a/src/csharp/Intel/Generator/Enums/Rust/RustEnumsGenerator.cs b/src/csharp/Intel/Generator/Enums/Rust/RustEnumsGenerator.cs
index 028440262..8a5eba4ee 100644
--- a/src/csharp/Intel/Generator/Enums/Rust/RustEnumsGenerator.cs
+++ b/src/csharp/Intel/Generator/Enums/Rust/RustEnumsGenerator.cs
@@ -16,7 +16,7 @@ namespace Generator.Enums.Rust {
 		readonly IdentifierConverter idConverter;
 		readonly Dictionary<TypeId, PartialEnumFileInfo?> toPartialFileInfo;
 		readonly RustDocCommentWriter docWriter;
-		readonly DeprecatedWriter deprecatedWriter;
+		readonly RustDeprecatedWriter deprecatedWriter;
 		readonly RustConstantsWriter constantsWriter;
 
 		sealed class PartialEnumFileInfo {