Add OutVarDeclarationExpression

ICSharpCode.Decompiler/CSharp/OutputVisitor/CSharpOutputVisitor.cs

@@ -765,6 +765,19 @@ namespace ICSharpCode.Decompiler.CSharp.OutputVisitor
 			
 			EndNode(directionExpression);
 		}
+
+		public virtual void VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression)
+		{
+			StartNode(outVarDeclarationExpression);
+
+			WriteKeyword(OutVarDeclarationExpression.OutKeywordRole);
+			Space();
+			outVarDeclarationExpression.Type.AcceptVisitor(this);
+			Space();
+			outVarDeclarationExpression.Expression.AcceptVisitor(this);
+
+			EndNode(outVarDeclarationExpression);
+		}
 		
 		public virtual void VisitIdentifierExpression(IdentifierExpression identifierExpression)
 		{

ICSharpCode.Decompiler/CSharp/Syntax/DepthFirstAstVisitor.cs

@@ -470,7 +470,12 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		{
 			VisitChildren (objectCreateExpression);
 		}
-		
+
+		public virtual void VisitOutVarDeclarationExpression (OutVarDeclarationExpression outVarDeclarationExpression)
+		{
+			VisitChildren (outVarDeclarationExpression);
+		}
+
 		public virtual void VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression)
 		{
 			VisitChildren (anonymousTypeCreateExpression);
@@ -1077,7 +1082,12 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		{
 			return VisitChildren (objectCreateExpression);
 		}
-		
+
+		public virtual T VisitOutVarDeclarationExpression (OutVarDeclarationExpression outVarDeclarationExpression)
+		{
+			return VisitChildren(outVarDeclarationExpression);
+		}
+
 		public virtual T VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression)
 		{
 			return VisitChildren (anonymousTypeCreateExpression);
@@ -1684,7 +1694,12 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		{
 			return VisitChildren (objectCreateExpression, data);
 		}
-		
+
+		public virtual S VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression, T data)
+		{
+			return VisitChildren (outVarDeclarationExpression, data);
+		}
+
 		public virtual S VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression, T data)
 		{
 			return VisitChildren (anonymousTypeCreateExpression, data);

ICSharpCode.Decompiler/CSharp/Syntax/Expressions/OutVarDeclarationExpression.cs

@@ -0,0 +1,73 @@
+// Copyright (c) 2017 Siegfried Pammer
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this
+// software and associated documentation files (the "Software"), to deal in the Software
+// without restriction, including without limitation the rights to use, copy, modify, merge,
+// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
+// to whom the Software is furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+namespace ICSharpCode.Decompiler.CSharp.Syntax
+{
+	/// <summary>
+	/// out type expression
+	/// </summary>
+	public class OutVarDeclarationExpression : Expression
+	{
+		public readonly static TokenRole OutKeywordRole = DirectionExpression.OutKeywordRole;
+
+		public CSharpTokenNode OutKeywordToken {
+			get { return GetChildByRole(OutKeywordRole); }
+		}
+
+		public AstType Type {
+			get { return GetChildByRole(Roles.Type); }
+			set { SetChildByRole(Roles.Type, value); }
+		}
+
+		public Expression Expression {
+			get { return GetChildByRole(Roles.Expression); }
+			set { SetChildByRole(Roles.Expression, value); }
+		}
+
+		public OutVarDeclarationExpression()
+		{
+		}
+
+		public OutVarDeclarationExpression(AstType type, string name)
+		{
+			this.Type = type;
+			this.Expression = new IdentifierExpression(name);
+		}
+
+		public override void AcceptVisitor(IAstVisitor visitor)
+		{
+			visitor.VisitOutVarDeclarationExpression(this);
+		}
+
+		public override T AcceptVisitor<T>(IAstVisitor<T> visitor)
+		{
+			return visitor.VisitOutVarDeclarationExpression(this);
+		}
+
+		public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
+		{
+			return visitor.VisitOutVarDeclarationExpression(this, data);
+		}
+
+		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
+		{
+			var o = other as OutVarDeclarationExpression;
+			return o != null && this.Type.DoMatch(o.Type, match) && this.Expression.DoMatch(o.Expression, match);
+		}
+	}
+}

ICSharpCode.Decompiler/CSharp/Syntax/IAstVisitor.cs

@@ -47,6 +47,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		void VisitNamedExpression(NamedExpression namedExpression);
 		void VisitNullReferenceExpression(NullReferenceExpression nullReferenceExpression);
 		void VisitObjectCreateExpression(ObjectCreateExpression objectCreateExpression);
+		void VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression);
 		void VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression);
 		void VisitParenthesizedExpression(ParenthesizedExpression parenthesizedExpression);
 		void VisitPointerReferenceExpression(PointerReferenceExpression pointerReferenceExpression);
@@ -179,6 +180,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		S VisitNamedExpression(NamedExpression namedExpression);
 		S VisitNullReferenceExpression(NullReferenceExpression nullReferenceExpression);
 		S VisitObjectCreateExpression(ObjectCreateExpression objectCreateExpression);
+		S VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression);
 		S VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression);
 		S VisitParenthesizedExpression(ParenthesizedExpression parenthesizedExpression);
 		S VisitPointerReferenceExpression(PointerReferenceExpression pointerReferenceExpression);
@@ -311,6 +313,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		S VisitNamedExpression(NamedExpression namedExpression, T data);
 		S VisitNullReferenceExpression(NullReferenceExpression nullReferenceExpression, T data);
 		S VisitObjectCreateExpression(ObjectCreateExpression objectCreateExpression, T data);
+		S VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression, T data);
 		S VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression, T data);
 		S VisitParenthesizedExpression(ParenthesizedExpression parenthesizedExpression, T data);
 		S VisitPointerReferenceExpression(PointerReferenceExpression pointerReferenceExpression, T data);

ICSharpCode.Decompiler/CSharp/Syntax/ObservableAstVisitor.cs

@@ -639,7 +639,14 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		{
 			Visit(EnterObjectCreateExpression, LeaveObjectCreateExpression, objectCreateExpression);
 		}
-		
+
+		public event Action<OutVarDeclarationExpression> EnterOutVarDeclarationExpression, LeaveOutVarDeclarationExpression;
+
+		void IAstVisitor.VisitOutVarDeclarationExpression(OutVarDeclarationExpression outVarDeclarationExpression)
+		{
+			Visit(EnterOutVarDeclarationExpression, LeaveOutVarDeclarationExpression, outVarDeclarationExpression);
+		}
+
 		public event Action<AnonymousTypeCreateExpression> EnterAnonymousTypeCreateExpression, LeaveAnonymousTypeCreateExpression;
 		
 		void IAstVisitor.VisitAnonymousTypeCreateExpression(AnonymousTypeCreateExpression anonymousTypeCreateExpression)

ICSharpCode.Decompiler/ICSharpCode.Decompiler.csproj

@@ -94,6 +94,7 @@
     <Compile Include="CSharp\Syntax\Expressions\NamedExpression.cs" />
     <Compile Include="CSharp\Syntax\Expressions\NullReferenceExpression.cs" />
     <Compile Include="CSharp\Syntax\Expressions\ObjectCreateExpression.cs" />
+    <Compile Include="CSharp\Syntax\Expressions\OutVarDeclarationExpression.cs" />
     <Compile Include="CSharp\Syntax\Expressions\ParenthesizedExpression.cs" />
     <Compile Include="CSharp\Syntax\Expressions\PointerReferenceExpression.cs" />
     <Compile Include="CSharp\Syntax\Expressions\PrimitiveExpression.cs" />