Add support for await using statements.

ICSharpCode.Decompiler/CSharp/OutputVisitor/CSharpOutputVisitor.cs

@@ -1112,6 +1112,7 @@ namespace ICSharpCode.Decompiler.CSharp.OutputVisitor
 			var opSymbol = UnaryOperatorExpression.GetOperatorRole(opType);
 			if (opType == UnaryOperatorType.Await) {
 				WriteKeyword(opSymbol);
+				Space();
 			} else if (!IsPostfixOperator(opType) && opSymbol != null) {
 				WriteToken(opSymbol);
 			}
@@ -1863,6 +1864,9 @@ namespace ICSharpCode.Decompiler.CSharp.OutputVisitor
 		public virtual void VisitUsingStatement(UsingStatement usingStatement)
 		{
 			StartNode(usingStatement);
+			if (usingStatement.IsAsync) {
+				WriteKeyword(UsingStatement.AwaitRole);
+			}
 			WriteKeyword(UsingStatement.UsingKeywordRole);
 			Space(policy.SpaceBeforeUsingParentheses);
 			LPar();

ICSharpCode.Decompiler/CSharp/StatementBuilder.cs

@@ -411,14 +411,29 @@ namespace ICSharpCode.Decompiler.CSharp
 				return transformed;
 			AstNode usingInit = resource;
 			var var = inst.Variable;
-			if (!inst.ResourceExpression.MatchLdNull() && !NullableType.GetUnderlyingType(var.Type).GetAllBaseTypes().Any(b => b.IsKnownType(KnownTypeCode.IDisposable))) {
+			KnownTypeCode knownTypeCode;
+			IType disposeType;
+			string disposeTypeMethodName;
+			if (inst.IsAsync) {
+				knownTypeCode = KnownTypeCode.IAsyncDisposable;
+				disposeType = exprBuilder.compilation.FindType(KnownTypeCode.IAsyncDisposable);
+				disposeTypeMethodName = "DisposeAsync";
+			} else {
+				knownTypeCode = KnownTypeCode.IDisposable;
+				disposeType = exprBuilder.compilation.FindType(KnownTypeCode.IDisposable);
+				disposeTypeMethodName = "Dispose";
+			}
+			if (!inst.ResourceExpression.MatchLdNull() && !NullableType.GetUnderlyingType(var.Type).GetAllBaseTypes().Any(b => b.IsKnownType(knownTypeCode))) {
 				Debug.Assert(var.Kind == VariableKind.UsingLocal);
 				var.Kind = VariableKind.Local;
-				var disposeType = exprBuilder.compilation.FindType(KnownTypeCode.IDisposable);
 				var disposeVariable = currentFunction.RegisterVariable(
 					VariableKind.Local, disposeType,
 					AssignVariableNames.GenerateVariableName(currentFunction, disposeType)
 				);
+				Expression disposeInvocation = new InvocationExpression(new MemberReferenceExpression(exprBuilder.ConvertVariable(disposeVariable).Expression, disposeTypeMethodName));
+				if (inst.IsAsync) {
+					disposeInvocation = new UnaryOperatorExpression { Expression = disposeInvocation, Operator = UnaryOperatorType.Await };
+				}
 				return new BlockStatement {
 					new ExpressionStatement(new AssignmentExpression(exprBuilder.ConvertVariable(var).Expression, resource.Detach())),
 					new TryCatchStatement {
@@ -427,7 +442,7 @@ namespace ICSharpCode.Decompiler.CSharp
 							new ExpressionStatement(new AssignmentExpression(exprBuilder.ConvertVariable(disposeVariable).Expression, new AsExpression(exprBuilder.ConvertVariable(var).Expression, exprBuilder.ConvertType(disposeType)))),
 							new IfElseStatement {
 								Condition = new BinaryOperatorExpression(exprBuilder.ConvertVariable(disposeVariable), BinaryOperatorType.InEquality, new NullReferenceExpression()),
-								TrueStatement = new ExpressionStatement(new InvocationExpression(new MemberReferenceExpression(exprBuilder.ConvertVariable(disposeVariable).Expression, "Dispose")))
+								TrueStatement = new ExpressionStatement(disposeInvocation)
 							}
 						}
 					},
@@ -441,6 +456,7 @@ namespace ICSharpCode.Decompiler.CSharp
 				}
 				return new UsingStatement {
 					ResourceAcquisition = usingInit,
+					IsAsync = inst.IsAsync,
 					EmbeddedStatement = ConvertAsBlock(inst.Body)
 				};
 			}

ICSharpCode.Decompiler/CSharp/Syntax/Statements/UsingStatement.cs

@@ -28,57 +28,67 @@
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
 	/// <summary>
-	/// using (ResourceAcquisition) EmbeddedStatement
+	/// [ await ] using (ResourceAcquisition) EmbeddedStatement
 	/// </summary>
 	public class UsingStatement : Statement
 	{
-		public static readonly TokenRole UsingKeywordRole = new TokenRole ("using");
+		public static readonly TokenRole UsingKeywordRole = new TokenRole("using");
+		public static readonly TokenRole AwaitRole = UnaryOperatorExpression.AwaitRole;
 		public static readonly Role<AstNode> ResourceAcquisitionRole = new Role<AstNode>("ResourceAcquisition", AstNode.Null);
-		
+
 		public CSharpTokenNode UsingToken {
-			get { return GetChildByRole (UsingKeywordRole); }
+			get { return GetChildByRole(UsingKeywordRole); }
+		}
+
+		public CSharpTokenNode AwaitToken {
+			get { return GetChildByRole(AwaitRole); }
 		}
-		
+
+		public bool IsAsync {
+			get { return !GetChildByRole(AwaitRole).IsNull; }
+			set { SetChildByRole(AwaitRole, value ? new CSharpTokenNode(TextLocation.Empty, null) : null); }
+		}
+
 		public CSharpTokenNode LParToken {
-			get { return GetChildByRole (Roles.LPar); }
+			get { return GetChildByRole(Roles.LPar); }
 		}
-		
+
 		/// <summary>
 		/// Either a VariableDeclarationStatement, or an Expression.
 		/// </summary>
 		public AstNode ResourceAcquisition {
-			get { return GetChildByRole (ResourceAcquisitionRole); }
-			set { SetChildByRole (ResourceAcquisitionRole, value); }
+			get { return GetChildByRole(ResourceAcquisitionRole); }
+			set { SetChildByRole(ResourceAcquisitionRole, value); }
 		}
-		
+
 		public CSharpTokenNode RParToken {
-			get { return GetChildByRole (Roles.RPar); }
+			get { return GetChildByRole(Roles.RPar); }
 		}
-		
+
 		public Statement EmbeddedStatement {
-			get { return GetChildByRole (Roles.EmbeddedStatement); }
-			set { SetChildByRole (Roles.EmbeddedStatement, value); }
+			get { return GetChildByRole(Roles.EmbeddedStatement); }
+			set { SetChildByRole(Roles.EmbeddedStatement, value); }
 		}
-		
-		public override void AcceptVisitor (IAstVisitor visitor)
+
+		public override void AcceptVisitor(IAstVisitor visitor)
 		{
-			visitor.VisitUsingStatement (this);
+			visitor.VisitUsingStatement(this);
 		}
-			
-		public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
+
+		public override T AcceptVisitor<T>(IAstVisitor<T> visitor)
 		{
-			return visitor.VisitUsingStatement (this);
+			return visitor.VisitUsingStatement(this);
 		}
-		
-		public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
+
+		public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
 		{
-			return visitor.VisitUsingStatement (this, data);
+			return visitor.VisitUsingStatement(this, data);
 		}
-		
+
 		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 		{
 			UsingStatement o = other as UsingStatement;
-			return o != null && this.ResourceAcquisition.DoMatch(o.ResourceAcquisition, match) && this.EmbeddedStatement.DoMatch(o.EmbeddedStatement, match);
+			return o != null && this.IsAsync == o.IsAsync && this.ResourceAcquisition.DoMatch(o.ResourceAcquisition, match) && this.EmbeddedStatement.DoMatch(o.EmbeddedStatement, match);
 		}
 	}
 }

ICSharpCode.Decompiler/DecompilerSettings.cs

@@ -108,13 +108,14 @@ namespace ICSharpCode.Decompiler
 			if (languageVersion < CSharp.LanguageVersion.CSharp8_0) {
 				nullableReferenceTypes = false;
 				readOnlyMethods = false;
+				asyncUsingAndForEachStatement = false;
 				asyncEnumerator = false;
 			}
 		}
 
 		public CSharp.LanguageVersion GetMinimumRequiredVersion()
 		{
-			if (nullableReferenceTypes || readOnlyMethods || asyncEnumerator)
+			if (nullableReferenceTypes || readOnlyMethods || asyncEnumerator || asyncUsingAndForEachStatement)
 				return CSharp.LanguageVersion.CSharp8_0;
 			if (introduceUnmanagedConstraint || tupleComparisons || stackAllocInitializers)
 				return CSharp.LanguageVersion.CSharp7_3;
@@ -876,6 +877,20 @@ namespace ICSharpCode.Decompiler
 			}
 		}
 
+		bool asyncUsingAndForEachStatement = true;
+
+		[Category("C# 8.0 / VS 2019")]
+		[Description("DecompilerSettings.DetectAsyncUsingAndForeachStatements")]
+		public bool AsyncUsingAndForEachStatement {
+			get { return asyncUsingAndForEachStatement; }
+			set {
+				if (asyncUsingAndForEachStatement != value) {
+					asyncUsingAndForEachStatement = value;
+					OnPropertyChanged();
+				}
+			}
+		}
+
 		bool introduceUnmanagedConstraint = true;
 
 		/// <summary>

ICSharpCode.Decompiler/IL/Instructions/UsingInstruction.cs

@@ -36,10 +36,16 @@ namespace ICSharpCode.Decompiler.IL
 	/// </remarks>
 	partial class UsingInstruction
 	{
+		public bool IsAsync { get; set; }
+
 		public override void WriteTo(ITextOutput output, ILAstWritingOptions options)
 		{
 			WriteILRange(output, options);
-			output.Write("using (");
+			output.Write("using");
+			if (IsAsync) {
+				output.Write(".async");
+			}
+			output.Write(" (");
 			Variable.WriteTo(output);
 			output.Write(" = ");
 			ResourceExpression.WriteTo(output, options);

ICSharpCode.Decompiler/IL/Transforms/UsingTransform.cs

@@ -34,7 +34,7 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 			if (!context.Settings.UsingStatement) return;
 			this.context = context;
 			for (int i = block.Instructions.Count - 1; i >= 0; i--) {
-				if (!TransformUsing(block, i) && !TransformUsingVB(block, i))
+				if (!TransformUsing(block, i) && !TransformUsingVB(block, i) && !TransformAsyncUsing(block, i))
 					continue;
 				// This happens in some cases:
 				// Use correct index after transformation.
@@ -167,7 +167,7 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 			return true;
 		}
 
-		bool MatchDisposeBlock(BlockContainer container, ILVariable objVar, bool usingNull)
+		bool MatchDisposeBlock(BlockContainer container, ILVariable objVar, bool usingNull, in string disposeMethodFullName = "System.IDisposable.Dispose", KnownTypeCode disposeTypeCode = KnownTypeCode.IDisposable)
 		{
 			var entryPoint = container.EntryPoint;
 			if (entryPoint.Instructions.Count < 2 || entryPoint.Instructions.Count > 3 || entryPoint.IncomingEdgeCount != 1)
@@ -180,17 +180,17 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 			if (castIndex > -1) {
 				if (!entryPoint.Instructions[castIndex].MatchStLoc(out var tempVar, out var isinst))
 					return false;
-				if (!isinst.MatchIsInst(out var load, out var disposableType) || !load.MatchLdLoc(objVar) || !disposableType.IsKnownType(KnownTypeCode.IDisposable))
+				if (!isinst.MatchIsInst(out var load, out var disposableType) || !load.MatchLdLoc(objVar) || !disposableType.IsKnownType(disposeTypeCode))
 					return false;
 				if (!tempVar.IsSingleDefinition)
 					return false;
 				isReference = true;
-				if (!MatchDisposeCheck(tempVar, checkInst, isReference, usingNull, out int numObjVarLoadsInCheck))
+				if (!MatchDisposeCheck(tempVar, checkInst, isReference, usingNull, out int numObjVarLoadsInCheck, disposeMethodFullName, disposeTypeCode))
 					return false;
 				if (tempVar.LoadCount != numObjVarLoadsInCheck)
 					return false;
 			} else {
-				if (!MatchDisposeCheck(objVar, checkInst, isReference, usingNull, out _))
+				if (!MatchDisposeCheck(objVar, checkInst, isReference, usingNull, out _, disposeMethodFullName, disposeTypeCode))
 					return false;
 			}
 			if (!entryPoint.Instructions[leaveIndex].MatchLeave(container, out var returnValue) || !returnValue.MatchNop())
@@ -198,9 +198,10 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 			return true;
 		}
 
-		bool MatchDisposeCheck(ILVariable objVar, ILInstruction checkInst, bool isReference, bool usingNull, out int numObjVarLoadsInCheck)
+		bool MatchDisposeCheck(ILVariable objVar, ILInstruction checkInst, bool isReference, bool usingNull, out int numObjVarLoadsInCheck, in string disposeMethodFullName, KnownTypeCode disposeTypeCode)
 		{
 			numObjVarLoadsInCheck = 2;
+			ILInstruction disposeInvocation;
 			CallVirt callVirt;
 			if (objVar.Type.IsKnownType(KnownTypeCode.NullableOfT)) {
 				if (checkInst.MatchIfInstruction(out var condition, out var disposeInst)) {
@@ -208,22 +209,27 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 						return false;
 					if (!(disposeInst is Block disposeBlock) || disposeBlock.Instructions.Count != 1)
 						return false;
-					callVirt = disposeBlock.Instructions[0] as CallVirt;
+					disposeInvocation = disposeBlock.Instructions[0];
 				} else if (checkInst.MatchNullableRewrap(out disposeInst)) {
-					callVirt = disposeInst as CallVirt;
+					disposeInvocation = disposeInst;
 				} else {
 					return false;
 				}
+				if (disposeTypeCode == KnownTypeCode.IAsyncDisposable) {
+					if (!UnwrapAwait(ref disposeInvocation))
+						return false;
+				}
+				callVirt = disposeInvocation as CallVirt;
 				if (callVirt == null)
 					return false;
-				if (callVirt.Method.FullName != "System.IDisposable.Dispose")
+				if (callVirt.Method.FullName != disposeMethodFullName)
 					return false;
 				if (callVirt.Method.Parameters.Count > 0)
 					return false;
 				if (callVirt.Arguments.Count != 1)
 					return false;
 				var firstArg = callVirt.Arguments.FirstOrDefault();
-				if (!(firstArg.MatchUnboxAny(out var innerArg1, out var unboxType) && unboxType.IsKnownType(KnownTypeCode.IDisposable))) {
+				if (!(firstArg.MatchUnboxAny(out var innerArg1, out var unboxType) && unboxType.IsKnownType(disposeTypeCode))) {
 					if (!firstArg.MatchAddressOf(out var innerArg2, out _))
 						return false;
 					return NullableLiftingTransform.MatchGetValueOrDefault(innerArg2, objVar)
@@ -255,7 +261,12 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 						return false;
 					if (!(disposeInst is Block disposeBlock) || disposeBlock.Instructions.Count != 1)
 						return false;
-					if (!(disposeBlock.Instructions[0] is CallVirt cv))
+					disposeInvocation = disposeBlock.Instructions[0];
+					if (disposeTypeCode == KnownTypeCode.IAsyncDisposable) {
+						if (!UnwrapAwait(ref disposeInvocation))
+							return false;
+					}
+					if (!(disposeInvocation is CallVirt cv))
 						return false;
 					target = cv.Arguments.FirstOrDefault();
 					if (target == null)
@@ -264,6 +275,10 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 						target = newTarget;
 					callVirt = cv;
 				} else {
+					if (disposeTypeCode == KnownTypeCode.IAsyncDisposable) {
+						if (!UnwrapAwait(ref checkInst))
+							return false;
+					}
 					if (!(checkInst is CallVirt cv))
 						return false;
 					target = cv.Arguments.FirstOrDefault();
@@ -275,7 +290,7 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 					}
 					callVirt = cv;
 				}
-				if (callVirt.Method.FullName != "System.IDisposable.Dispose")
+				if (callVirt.Method.FullName != disposeMethodFullName)
 					return false;
 				if (callVirt.Method.Parameters.Count > 0)
 					return false;
@@ -286,8 +301,74 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 					|| (usingNull && callVirt.Arguments[0].MatchLdNull())
 					|| (isReference && checkInst is NullableRewrap
 						&& target.MatchIsInst(out var arg, out var type2)
-						&& arg.MatchLdLoc(objVar) && type2.IsKnownType(KnownTypeCode.IDisposable));
+						&& arg.MatchLdLoc(objVar) && type2.IsKnownType(disposeTypeCode));
 			}
 		}
+
+		/// <summary>
+		/// stloc test(resourceExpression)
+		/// .try BlockContainer {
+		/// 	Block IL_002b (incoming: 1) {
+		/// 		call Use(ldloc test)
+		/// 		leave IL_002b (nop)
+		/// 	}
+		/// 
+		/// } finally BlockContainer {
+		/// 	Block IL_0045 (incoming: 1) {
+		/// 		if (comp.o(ldloc test == ldnull)) leave IL_0045 (nop)
+		/// 		br IL_00ae
+		/// 	}
+		/// 
+		/// 	Block IL_00ae (incoming: 1) {
+		/// 		await(addressof System.Threading.Tasks.ValueTask(callvirt DisposeAsync(ldloc test)))
+		/// 		leave IL_0045 (nop)
+		/// 	}
+		/// 
+		/// }
+		/// </summary>
+		private bool TransformAsyncUsing(Block block, int i)
+		{
+			if (i < 1 || !context.Settings.AsyncUsingAndForEachStatement) return false;
+			if (!(block.Instructions[i] is TryFinally tryFinally) || !(block.Instructions[i - 1] is StLoc storeInst))
+				return false;
+			if (!CheckAsyncResourceType(storeInst.Variable.Type))
+				return false;
+			if (storeInst.Variable.Kind != VariableKind.Local)
+				return false;
+			if (storeInst.Variable.LoadInstructions.Any(ld => !ld.IsDescendantOf(tryFinally)))
+				return false;
+			if (storeInst.Variable.AddressInstructions.Any(la => !la.IsDescendantOf(tryFinally) || (la.IsDescendantOf(tryFinally.TryBlock) && !ILInlining.IsUsedAsThisPointerInCall(la))))
+				return false;
+			if (storeInst.Variable.StoreInstructions.Count > 1)
+				return false;
+			if (!(tryFinally.FinallyBlock is BlockContainer container) || !MatchDisposeBlock(container, storeInst.Variable, usingNull: false, "System.IAsyncDisposable.DisposeAsync", KnownTypeCode.IAsyncDisposable))
+				return false;
+			context.Step("AsyncUsingTransform", tryFinally);
+			storeInst.Variable.Kind = VariableKind.UsingLocal;
+			block.Instructions.RemoveAt(i);
+			block.Instructions[i - 1] = new UsingInstruction(storeInst.Variable, storeInst.Value, tryFinally.TryBlock) { IsAsync = true }
+				.WithILRange(storeInst);
+			return true;
+		}
+
+		bool CheckAsyncResourceType(IType type)
+		{
+			if (NullableType.GetUnderlyingType(type).GetAllBaseTypes().Any(b => b.IsKnownType(KnownTypeCode.IAsyncDisposable)))
+				return true;
+			return false;
+		}
+
+		bool UnwrapAwait(ref ILInstruction awaitInstruction)
+		{
+			if (awaitInstruction == null)
+				return false;
+			if (!awaitInstruction.MatchAwait(out var arg))
+				return false;
+			if (!arg.MatchAddressOf(out awaitInstruction, out var type))
+				return false;
+			if (!type.IsKnownType(KnownTypeCode.ValueTask))
+				return false;
+			return true;
+		}
 	}
 }

ICSharpCode.Decompiler/TypeSystem/KnownTypeReference.cs

@@ -115,10 +115,16 @@ namespace ICSharpCode.Decompiler.TypeSystem
 		Task,
 		/// <summary><c>System.Threading.Tasks.Task{T}</c></summary>
 		TaskOfT,
+		/// <summary><c>System.Threading.Tasks.ValueTask</c></summary>
+		ValueTask,
+		/// <summary><c>System.Threading.Tasks.ValueTask{T}</c></summary>
+		ValueTaskOfT,
 		/// <summary><c>System.Nullable{T}</c></summary>
 		NullableOfT,
 		/// <summary><c>System.IDisposable</c></summary>
 		IDisposable,
+		/// <summary><c>System.IAsyncDisposable</c></summary>
+		IAsyncDisposable,
 		/// <summary><c>System.Runtime.CompilerServices.INotifyCompletion</c></summary>
 		INotifyCompletion,
 		/// <summary><c>System.Runtime.CompilerServices.ICriticalNotifyCompletion</c></summary>
@@ -193,10 +199,13 @@ namespace ICSharpCode.Decompiler.TypeSystem
 
 			new KnownTypeReference(KnownTypeCode.IReadOnlyCollectionOfT, TypeKind.Interface, "System.Collections.Generic", "IReadOnlyCollection", 1),
 			new KnownTypeReference(KnownTypeCode.IReadOnlyListOfT, TypeKind.Interface, "System.Collections.Generic", "IReadOnlyList", 1),
-			new KnownTypeReference(KnownTypeCode.Task,        TypeKind.Class, "System.Threading.Tasks", "Task"),
-			new KnownTypeReference(KnownTypeCode.TaskOfT,     TypeKind.Class, "System.Threading.Tasks", "Task", 1, baseType: KnownTypeCode.Task),
+			new KnownTypeReference(KnownTypeCode.Task,         TypeKind.Class, "System.Threading.Tasks", "Task"),
+			new KnownTypeReference(KnownTypeCode.TaskOfT,      TypeKind.Class, "System.Threading.Tasks", "Task", 1, baseType: KnownTypeCode.Task),
+			new KnownTypeReference(KnownTypeCode.ValueTask,    TypeKind.Struct, "System.Threading.Tasks", "ValueTask"),
+			new KnownTypeReference(KnownTypeCode.ValueTaskOfT, TypeKind.Struct, "System.Threading.Tasks", "ValueTask", 1),
 			new KnownTypeReference(KnownTypeCode.NullableOfT, TypeKind.Struct, "System", "Nullable", 1),
 			new KnownTypeReference(KnownTypeCode.IDisposable, TypeKind.Interface, "System", "IDisposable"),
+			new KnownTypeReference(KnownTypeCode.IAsyncDisposable, TypeKind.Interface, "System", "IAsyncDisposable"),
 			new KnownTypeReference(KnownTypeCode.INotifyCompletion, TypeKind.Interface, "System.Runtime.CompilerServices", "INotifyCompletion"),
 			new KnownTypeReference(KnownTypeCode.ICriticalNotifyCompletion, TypeKind.Interface, "System.Runtime.CompilerServices", "ICriticalNotifyCompletion"),
 

ILSpy/Properties/Resources.Designer.cs

@@ -673,6 +673,15 @@ namespace ICSharpCode.ILSpy.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Detect awaited using and foreach statements.
+        /// </summary>
+        public static string DecompilerSettings_DetectAsyncUsingAndForeachStatements {
+            get {
+                return ResourceManager.GetString("DecompilerSettings.DetectAsyncUsingAndForeachStatements", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Detect foreach statements.
         /// </summary>

ILSpy/Properties/Resources.resx

@@ -447,9 +447,6 @@
   <data name="Version" xml:space="preserve">
     <value>Version</value>
   </data>
-  <data name="Culture" xml:space="preserve">
-    <value>Culture</value>
-  </data>
   <data name="PublicToken" xml:space="preserve">
     <value>Public Key Token</value>
   </data>
@@ -775,4 +772,7 @@ Are you sure you want to continue?</value>
   <data name="DecompilerSettings.ReadOnlyMethods" xml:space="preserve">
     <value>Read-only methods</value>
   </data>
+  <data name="DecompilerSettings.DetectAsyncUsingAndForeachStatements" xml:space="preserve">
+    <value>Detect awaited using and foreach statements</value>
+  </data>
 </root>