[CodeAction] Fixed bug in create field/property action.

ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/CreateFieldAction.cs

@@ -44,9 +44,14 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 			return invoke != null && invoke.Target == node;
 		}
 
+		internal static Expression GetCreatePropertyOrFieldNode(RefactoringContext context)
+		{
+			return context.GetNode(n => n is IdentifierExpression || n is MemberReferenceExpression || n is NamedExpression) as Expression;
+		}
+
 		public IEnumerable<CodeAction> GetActions(RefactoringContext context)
 		{
-			var expr = context.GetNode(n => n is IdentifierExpression || n is MemberReferenceExpression) as Expression;
+			var expr = GetCreatePropertyOrFieldNode(context);
 			if (expr == null)
 				yield break;
 
@@ -174,6 +179,9 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 			}
 
 			if (expr.Parent is ArrayInitializerExpression) {
+				if (expr is NamedExpression)
+					return new [] { resolver.Resolve(((NamedExpression)expr).Expression).Type };
+
 				var aex = expr.Parent as ArrayInitializerExpression;
 				if (aex.IsSingleElement)
 					aex = aex.Parent as ArrayInitializerExpression;

ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/CreatePropertyAction.cs

@@ -35,7 +35,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 	{
 		public IEnumerable<CodeAction> GetActions(RefactoringContext context)
 		{
-			var identifier = context.GetNode(n => n is IdentifierExpression || n is MemberReferenceExpression) as Expression;
+			var identifier = CreateFieldAction.GetCreatePropertyOrFieldNode (context);
 			if (identifier == null)
 				yield break;
 			if (CreateFieldAction.IsInvocationTarget(identifier))
@@ -118,6 +118,8 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 				return ((IdentifierExpression)expr).Identifier;
 			if (expr is MemberReferenceExpression) 
 				return ((MemberReferenceExpression)expr).MemberName;
+			if (expr is NamedExpression) 
+				return ((NamedExpression)expr).Name;
 
 			return null;
 		}

ICSharpCode.NRefactory.Tests/CSharp/CodeActions/CreateFieldTests.cs

@@ -209,5 +209,29 @@ class Foo
 				"}", result);
 		}
 
+		[Test()]
+		public void TestObjectInitializer ()
+		{
+			// Not 100% correct input code, but should work in that case as well.
+			Test<CreateFieldAction> (@"class TestClass
+{
+	void TestMethod ()
+	{
+		new TestClass {
+			$NonExistantProperty = 5
+		};
+	}
+}", @"class TestClass
+{
+	int NonExistantProperty;
+	void TestMethod ()
+	{
+		new TestClass {
+			NonExistantProperty = 5
+		};
+	}
+}");
+		}
+
 	}
 }

ICSharpCode.NRefactory.Tests/CSharp/CodeActions/CreatePropertyTests.cs

@@ -276,6 +276,35 @@ class Foo
 		AEnum e = AEnum.B$ar;
 	}
 }
+");
+		}
+
+		[Test()]
+		public void TestPropertyFromObjectInitializer ()
+		{
+			TestCreateProperty (
+				@"class TestClass
+{
+	void TestMethod ()
+	{
+		new TestClass {
+			$NonExistantProperty = 5
+		};
+	}
+}
+", @"class TestClass
+{
+	int NonExistantProperty {
+		get;
+		set;
+	}
+	void TestMethod ()
+	{
+		new TestClass {
+			NonExistantProperty = 5
+		};
+	}
+}
 ");
 		}
 	}