1 files changed, 103 insertions, 0 deletions
diff --git a/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Diagnostics/MonoTODO/MonoTODODiagnosticAnalyzer.cs b/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Diagnostics/MonoTODO/MonoTODODiagnosticAnalyzer.cs
new file mode 100644
index 0000000000..b17d6fd0f5
--- /dev/null
+++ b/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Diagnostics/MonoTODO/MonoTODODiagnosticAnalyzer.cs
@@ -0,0 +1,103 @@
+//
+// MonoTODODiagnosticAnalyzer.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@xamarin.com>
+//
+// Copyright (c) 2013 Xamarin Inc. (http://xamarin.com)
+//
+// 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.
+
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using Microsoft.CodeAnalysis.Diagnostics;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using ICSharpCode.NRefactory6.CSharp;
+using System.Threading;
+
+namespace MonoDevelop.CSharp.Diagnostics.MonoTODODiagnostic
+{
+	[DiagnosticAnalyzer(LanguageNames.CSharp)]
+	sealed class MonoTODODiagnosticAnalyzer : DiagnosticAnalyzer
+	{
+		static readonly ImmutableArray<SyntaxKind> syntaxKindsOfInterest = ImmutableArray.Create(
+			SyntaxKind.IdentifierName,                // foo
+			SyntaxKind.SimpleMemberAccessExpression,  // foo.bar
+			SyntaxKind.PointerMemberAccessExpression, // foo->bar
+			SyntaxKind.ConditionalAccessExpression    // foo?.bar
+		);
+
+		static readonly DiagnosticDescriptor descriptor = new DiagnosticDescriptor(
+			IDEDiagnosticIds.MonoTODODiagnosticDiagnosticId,
+			"Find usages of mono todo items",
+			"{0}",
+			DiagnosticAnalyzerCategories.Notifications,
+			DiagnosticSeverity.Warning,
+			isEnabledByDefault: true);
+
+		public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics {
+			get {
+				return ImmutableArray.Create(descriptor);
+			}
+		}
+
+		public override void Initialize(AnalysisContext context)
+		{
+			context.RegisterSyntaxNodeAction(
+				(nodeContext) => {
+					Diagnostic diagnostic;
+					if (TryFindMonoTODO(nodeContext.SemanticModel, nodeContext.Node, out diagnostic, nodeContext.CancellationToken))
+						nodeContext.ReportDiagnostic (diagnostic);
+				},
+				syntaxKindsOfInterest);
+		}
+
+		static readonly Dictionary<string, string> attributes = new Dictionary<string, string> {
+			{ "MonoTODOAttribute", "Mono TODO" },
+			{ "MonoNotSupportedAttribute", "Mono NOT SUPPORTED" },
+			{ "MonoLimitationAttribute", "Mono LIMITATION" }
+		};
+
+		bool TryFindMonoTODO (SemanticModel semanticModel, SyntaxNode node, out Diagnostic diagnostic, CancellationToken cancellationToken)
+		{
+			var info = semanticModel.GetSymbolInfo (node);
+			diagnostic = default(Diagnostic);
+			if (info.Symbol == null || semanticModel.IsFromGeneratedCode (cancellationToken))
+				return false;
+
+			foreach (var attr in info.Symbol.GetAttributes ()) {
+				if (attr.AttributeClass.ContainingNamespace.GetFullName () != "System")
+					continue;
+				string val;
+				if (attributes.TryGetValue (attr.AttributeClass.Name, out val)) {
+					string msg = null;
+					if (attr.ConstructorArguments.Length > 0) {
+						var arg = attr.ConstructorArguments [0];
+						msg = arg.Value != null ? arg.Value.ToString () : null;
+					}
+					var tree = semanticModel.SyntaxTree;
+					diagnostic = Diagnostic.Create(descriptor, tree.GetLocation(node.Span), string.IsNullOrEmpty (msg) ? val : val + ": " + msg);
+					return true;
+				}
+			}
+			return false;
+		}
+	}
+}
+\ No newline at end of file