Debug & evaluate third party code.

src/AddIns/Debugger/Debugger.AddIn/Debugger.AddIn.csproj

@@ -360,6 +360,14 @@
       <Name>ICSharpCode.AvalonEdit</Name>
       <Private>False</Private>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\Libraries\ICSharpCode.Decompiler\ICSharpCode.Decompiler.csproj">
+      <Project>{984CC812-9470-4A13-AFF9-CC44068D666C}</Project>
+      <Name>ICSharpCode.Decompiler</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\..\Libraries\Mono.Cecil\Mono.Cecil.csproj">
+      <Project>{D68133BD-1E63-496E-9EDE-4FBDBF77B486}</Project>
+      <Name>Mono.Cecil</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Main\Base\Project\ICSharpCode.SharpDevelop.csproj">
       <Project>{2748AD25-9C63-4E12-877B-4DCE96FBED54}</Project>
       <Name>ICSharpCode.SharpDevelop</Name>

src/AddIns/Debugger/Debugger.AddIn/Service/WindowsDebugger.cs

@@ -2,6 +2,7 @@
 // This code is distributed under the BSD license (for details please see \src\AddIns\Debugger\Debugger.AddIn\license.txt)
 
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using System.Drawing;
 using System.IO;
@@ -15,8 +16,12 @@ using Debugger;
 using Debugger.AddIn.Tooltips;
 using Debugger.AddIn.TreeModel;
 using Debugger.Interop.CorPublish;
+using Debugger.MetaData;
 using ICSharpCode.Core;
+using ICSharpCode.Core.Services;
 using ICSharpCode.Core.WinForms;
+using ICSharpCode.Decompiler;
+using ICSharpCode.Decompiler.ILAst;
 using ICSharpCode.NRefactory;
 using ICSharpCode.NRefactory.Ast;
 using ICSharpCode.NRefactory.Visitors;
@@ -25,6 +30,7 @@ using ICSharpCode.SharpDevelop.Debugging;
 using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.SharpDevelop.Gui.OptionPanels;
 using ICSharpCode.SharpDevelop.Project;
+using Mono.Cecil;
 using Process = Debugger.Process;
 
 namespace ICSharpCode.SharpDevelop.Services
@@ -81,6 +87,18 @@ namespace ICSharpCode.SharpDevelop.Services
 			set;
 		}
 		
+		public bool IsInExternalCode {
+			get {
+				if (debuggedProcess == null)
+					return true;
+				
+				if(debuggedProcess.SelectedThread == null)
+					return true;
+				
+				return debuggedProcess.SelectedStackFrame.ToString() != debuggedProcess.SelectedThread.MostRecentStackFrame.ToString();
+			}
+		}
+		
 		protected virtual void OnProcessSelected(ProcessEventArgs e)
 		{
 			if (ProcessSelected != null) {
@@ -210,6 +228,8 @@ namespace ICSharpCode.SharpDevelop.Services
 						DebugStarting(this, EventArgs.Empty);
 					
 					try {
+						// set the JIT flag for evaluating optimized code
+						Process.DebugMode = DebugModeFlag.Debug;
 						Process process = debugger.Start(processStartInfo.FileName,
 						                                 processStartInfo.WorkingDirectory,
 						                                 processStartInfo.Arguments);
@@ -271,6 +291,8 @@ namespace ICSharpCode.SharpDevelop.Services
 					DebugStarting(this, EventArgs.Empty);
 				
 				try {
+					// set the JIT flag for evaluating optimized code
+					Process.DebugMode = DebugModeFlag.Debug;
 					Process process = debugger.Attach(existingProcess);
 					attached = true;
 					SelectProcess(process);
@@ -444,16 +466,56 @@ namespace ICSharpCode.SharpDevelop.Services
 		
 		// Stepping:
 		
+		SourceCodeMapping GetCurrentCodeMapping(out bool isMatch)
+		{
+			DecompileInformation debugInformation = (DecompileInformation)DebuggerService.ExternalDebugInformation;
+			isMatch = false;
+			
+			if (debugInformation == null)
+				return null;
+			var frame = debuggedProcess.SelectedThread.MostRecentStackFrame;
+			int token = frame.MethodInfo.MetadataToken;
+			
+			// get the mapped instruction from the current line marker or the next one
+			if (!debugInformation.CodeMappings.ContainsKey(token))
+				return null;
+			var mappings = (List<MemberMapping>)debugInformation.CodeMappings[token];
+			return mappings.GetInstructionByTokenAndOffset(token, frame.IP, out isMatch);
+		}
+		
+		Debugger.StackFrame GetStackFrame()
+		{
+			bool isMatch;
+			Debugger.StackFrame frame = debuggedProcess.SelectedThread.MostRecentStackFrame;
+			var map = GetCurrentCodeMapping(out isMatch);
+			if (map == null) {
+				frame = debuggedProcess.SelectedThread.MostRecentStackFrame;
+				frame.ILRanges = new [] { 0, 1 };
+			} else {
+				frame.SourceCodeLine = map.SourceCodeLine;
+				frame.ILRanges = map.ToArray(isMatch);
+			}
+			
+			return frame;
+		}
+		
 		public void StepInto()
 		{
 			if (!IsDebugging) {
 				MessageService.ShowMessage(errorNotDebugging, "${res:XML.MainMenu.DebugMenu.StepInto}");
 				return;
 			}
-			if (debuggedProcess.SelectedStackFrame == null || debuggedProcess.IsRunning) {
+			
+			var frame = debuggedProcess.SelectedStackFrame ?? debuggedProcess.SelectedThread.MostRecentStackFrame;
+			if (frame == null || debuggedProcess.IsRunning) {
 				MessageService.ShowMessage(errorCannotStepNoActiveFunction, "${res:XML.MainMenu.DebugMenu.StepInto}");
 			} else {
-				debuggedProcess.SelectedStackFrame.AsyncStepInto();
+				if (IsInExternalCode) {
+					// get frame info from external code mappings
+					frame = GetStackFrame();
+				}
+				
+				frame.AsyncStepInto();
 			}
 		}
 		
@@ -463,10 +525,17 @@ namespace ICSharpCode.SharpDevelop.Services
 				MessageService.ShowMessage(errorNotDebugging, "${res:XML.MainMenu.DebugMenu.StepOver}");
 				return;
 			}
-			if (debuggedProcess.SelectedStackFrame == null || debuggedProcess.IsRunning) {
+			
+			var frame = debuggedProcess.SelectedStackFrame ?? debuggedProcess.SelectedThread.MostRecentStackFrame;
+			if (frame == null || debuggedProcess.IsRunning) {
 				MessageService.ShowMessage(errorCannotStepNoActiveFunction, "${res:XML.MainMenu.DebugMenu.StepOver}");
 			} else {
-				debuggedProcess.SelectedStackFrame.AsyncStepOver();
+				if (IsInExternalCode) {
+					// get frame info from external code mappings
+					frame = GetStackFrame();
+				}
+				
+				frame.AsyncStepOver();
 			}
 		}
 		
@@ -476,10 +545,17 @@ namespace ICSharpCode.SharpDevelop.Services
 				MessageService.ShowMessage(errorNotDebugging, "${res:XML.MainMenu.DebugMenu.StepOut}");
 				return;
 			}
-			if (debuggedProcess.SelectedStackFrame == null || debuggedProcess.IsRunning) {
-				MessageService.ShowMessage(errorCannotStepNoActiveFunction, "${res:XML.MainMenu.DebugMenu.StepOut}");
+			
+			var frame = debuggedProcess.SelectedStackFrame ?? debuggedProcess.SelectedThread.MostRecentStackFrame;
+			if (frame == null || debuggedProcess.IsRunning) {
+				MessageService.ShowMessage(errorCannotStepNoActiveFunction, "${res:XML.MainMenu.DebugMenu.StepInto}");
 			} else {
-				debuggedProcess.SelectedStackFrame.AsyncStepOut();
+				if (IsInExternalCode) {
+					// get frame info from external code mappings
+					frame = GetStackFrame();
+				}
+				
+				frame.AsyncStepOut();
 			}
 		}
 		
@@ -505,7 +581,17 @@ namespace ICSharpCode.SharpDevelop.Services
 			if (!CanEvaluate) {
 				return null;
 			}
-			return ExpressionEvaluator.Evaluate(variableName, SupportedLanguage.CSharp, debuggedProcess.SelectedStackFrame);
+			
+			Debugger.StackFrame stackFrame = debuggedProcess.SelectedThread.MostRecentStackFrame;
+
+			try {
+				object data = GetLocalVariableIndex(stackFrame, variableName);
+				
+				// evaluate expression
+				return ExpressionEvaluator.Evaluate(variableName, SupportedLanguage.CSharp, stackFrame, data);
+			} catch {
+				throw;
+			}
 		}
 
 		/// <summary>
@@ -550,7 +636,8 @@ namespace ICSharpCode.SharpDevelop.Services
 		bool CanEvaluate
 		{
 			get {
-				return debuggedProcess != null && !debuggedProcess.IsRunning && debuggedProcess.SelectedStackFrame != null;
+				return debuggedProcess != null && !debuggedProcess.IsRunning &&
+					(debuggedProcess.SelectedStackFrame != null || debuggedProcess.SelectedThread.MostRecentStackFrame != null);
 			}
 		}
 		
@@ -566,7 +653,7 @@ namespace ICSharpCode.SharpDevelop.Services
 				var image = ExpressionNode.GetImageForLocalVariable(out imageName);
 				ExpressionNode expressionNode = new ExpressionNode(image, variableName, tooltipExpression);
 				expressionNode.ImageName = imageName;
-				return new DebuggerTooltipControl(logicalPosition, expressionNode);
+				return new DebuggerTooltipControl(logicalPosition, expressionNode) { ShowPins = !IsInExternalCode };
 			} catch (GetValueException) {
 				return null;
 			}
@@ -885,15 +972,64 @@ namespace ICSharpCode.SharpDevelop.Services
 		
 		public void JumpToCurrentLine()
 		{
+			if (debuggedProcess == null || debuggedProcess.SelectedThread == null)
+				return;
+			
 			WorkbenchSingleton.MainWindow.Activate();
 			DebuggerService.RemoveCurrentLineMarker();
-			if (debuggedProcess != null) {
+			
+			if (!IsInExternalCode) {
 				SourcecodeSegment nextStatement = debuggedProcess.NextStatement;
 				if (nextStatement != null) {
 					DebuggerService.JumpToCurrentLine(nextStatement.Filename, nextStatement.StartLine, nextStatement.StartColumn, nextStatement.EndLine, nextStatement.EndColumn);
 				}
+			} else {
+				DecompileInformation externalData = (DecompileInformation)DebuggerService.ExternalDebugInformation;
+				
+				// use most recent stack frame because we don't have the symbols
+				var frame = debuggedProcess.SelectedThread.MostRecentStackFrame;
+				
+				if (frame == null)
+					return;
+				
+				int token = frame.MethodInfo.MetadataToken;
+				int ilOffset = frame.IP;
+				int line;
+				MemberReference memberReference;
+				
+				if (externalData != null && externalData.CodeMappings.ContainsKey(token)) {
+					var mappings = externalData.CodeMappings[token];
+					if (mappings.GetInstructionByTokenAndOffset(token, ilOffset, out memberReference, out line)) {
+						DebuggerService.DebugStepInformation = null; // we do not need to step into/out
+
+						// update marker
+						var debugType = (DebugType)frame.MethodInfo.DeclaringType;
+						string title = "[" + debugType.Name + "]";
+						foreach (var vc in WorkbenchSingleton.Workbench.ViewContentCollection.OfType<AbstractViewContentWithoutFile>()) {
+							if (string.Equals(vc.TitleName, title, StringComparison.OrdinalIgnoreCase)) {
+								CurrentLineBookmark.SetPosition(vc, line, 0, line, 0);
+								vc.WorkbenchWindow.SelectWindow();
+								return;
 							}
 						}
+						// the decompiled content was closed so we have to recreate it
+						StepIntoUnknownFrame(frame, token, ilOffset);
+					} else {
+						StepIntoUnknownFrame(frame, token, ilOffset);
+					}
+				} else {
+					StepIntoUnknownFrame(frame, token, ilOffset);
+				}
+			}
+		}
+
+		void StepIntoUnknownFrame(Debugger.StackFrame frame, int token, int ilOffset)
+		{
+			var debugType = (DebugType)frame.MethodInfo.DeclaringType;
+			string fullName = debugType.FullNameWithoutGenericArguments;
+			DebuggerService.DebugStepInformation = Tuple.Create(token, ilOffset);
+			NavigationService.NavigateTo(debugType.DebugModule.FullPath, debugType.FullNameWithoutGenericArguments, string.Empty);
+		}
 		
 		StopAttachedProcessDialogResult ShowStopAttachedProcessDialog()
 		{
@@ -912,5 +1048,31 @@ namespace ICSharpCode.SharpDevelop.Services
 				.Where(p => e.Item.Name.IndexOf(p.Name) >= 0)
 				.ForEach(p => e.Item.LoadSymbolsFromDisk(new []{ Path.GetDirectoryName(p.OutputAssemblyFullPath) }));
 		}
+		
+		public static object GetLocalVariableIndex(Debugger.StackFrame stackFrame, string variableName)
+		{
+			// get the target name
+			int token = stackFrame.MethodInfo.MetadataToken;
+			int index = variableName.IndexOf('.');
+			string targetName = variableName;
+			if (index != -1) {
+				targetName = variableName.Substring(0, index);
+			}
+			
+			// get local variable index and store it in UserData property - used in evaluator
+			object data = null;
+			IEnumerable<ILVariable> list;
+			DecompileInformation externalData = (DecompileInformation)DebuggerService.ExternalDebugInformation;
+			if (externalData == null)
+				return null;
+			
+			if (externalData.LocalVariables.TryGetValue(token, out list)) {
+				var variable = list.FirstOrDefault(v => v.Name == targetName);
+				if (variable != null && variable.OriginalVariable != null) {
+					data = new[] { variable.OriginalVariable.Index };
+				}
+			}
+			return data;
+		}
 	}
 }

src/AddIns/Debugger/Debugger.AddIn/Tooltips/DebuggerPopup.cs

@@ -23,7 +23,7 @@ namespace Debugger.AddIn.Tooltips
 
 		public DebuggerPopup(DebuggerTooltipControl parentControl, Location logicalPosition, bool showPins = true)
 		{
-			this.contentControl = new DebuggerTooltipControl(parentControl, logicalPosition, showPins);
+			this.contentControl = new DebuggerTooltipControl(parentControl, logicalPosition) { ShowPins = showPins };
 			this.contentControl.containingPopup = this;
 			this.Child = this.contentControl;
 			this.IsLeaf = false;

src/AddIns/Debugger/Debugger.AddIn/Tooltips/DebuggerTooltipControl.xaml.cs

@@ -58,11 +58,10 @@ namespace Debugger.AddIn.Tooltips
 			this.itemsSource = nodes;
 		}
 
-		public DebuggerTooltipControl(DebuggerTooltipControl parentControl, Location logicalPosition, bool showPins = true)
+		public DebuggerTooltipControl(DebuggerTooltipControl parentControl, Location logicalPosition)
 			: this(logicalPosition)
 		{
 			this.parentControl = parentControl;
-			this.showPins = showPins;
 		}
 		
 		private void OnLoaded(object sender, RoutedEventArgs e)
@@ -82,6 +81,11 @@ namespace Debugger.AddIn.Tooltips
 			}
 		}
 		
+		public bool ShowPins {
+			get { return showPins; }
+			set { showPins = value; }
+		}
+		
 		public IEnumerable<ITreeNode> ItemsSource {
 			get { return this.itemsSource; }
 		}
@@ -95,8 +99,16 @@ namespace Debugger.AddIn.Tooltips
 			this.itemsSource.ForEach(item => observable.Add(item));
 			
 			// verify if at the line of the root there's a pin bookmark
-			ITextEditorProvider provider = WorkbenchSingleton.Workbench.ActiveViewContent as ITextEditorProvider;
-			var editor = provider.TextEditor;
+			ITextEditor editor;
+			var viewContent = WorkbenchSingleton.Workbench.ActiveViewContent;
+			ITextEditorProvider provider = viewContent as ITextEditorProvider;
+			if (provider != null) {
+				editor = provider.TextEditor;
+			} else {
+				dynamic codeView = viewContent.Control;
+				editor = codeView.TextEditor as ITextEditor;
+			}
+			
 			if (editor != null) {
 				var pin = BookmarkManager.Bookmarks.Find(
 					b => b is PinBookmark &&
@@ -208,7 +220,7 @@ namespace Debugger.AddIn.Tooltips
 
 				// open child Popup
 				if (this.childPopup == null) {
-					this.childPopup = new DebuggerPopup(this, logicalPosition);
+					this.childPopup = new DebuggerPopup(this, logicalPosition, showPins);
 					this.childPopup.Placement = PlacementMode.Absolute;
 				}
 				if (this.containingPopup != null) {

src/AddIns/Debugger/Debugger.AddIn/TreeModel/ExpressionNode.cs

@@ -5,13 +5,17 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Globalization;
+using System.Linq;
 using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Text;
 using System.Windows.Forms;
+
 using Debugger.AddIn.Visualizers;
 using Debugger.MetaData;
 using ICSharpCode.Core;
+using ICSharpCode.Decompiler;
+using ICSharpCode.Decompiler.ILAst;
 using ICSharpCode.NRefactory.Ast;
 using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.Debugging;
@@ -154,6 +158,15 @@ namespace Debugger.AddIn.TreeModel
 			
 			Value val;
 			try {
+				object data = WindowsDebugger.GetLocalVariableIndex(WindowsDebugger.DebuggedProcess.SelectedThread.MostRecentStackFrame, Name);
+				if (expression is MemberReferenceExpression) {
+					var memberExpression = (MemberReferenceExpression)expression;
+					memberExpression.TargetObject.UserData = data;
+				} else {
+					expression.UserData = data;
+				}
+				
+				// evaluate expression
 				val = expression.Evaluate(WindowsDebugger.DebuggedProcess);
 			} catch (GetValueException e) {
 				error = e;

src/AddIns/Debugger/Debugger.Core/Interop/CorDebug.cs

@@ -63,6 +63,14 @@ namespace Debugger.Interop.CorDebug
         CHAIN_THREAD_START = 0x40
     }
     
+    [Flags]
+    public enum CorDebugJITCompilerFlags
+    {
+        CORDEBUG_JIT_DEFAULT = 0x1,
+        CORDEBUG_JIT_DISABLE_OPTIMIZATION = 0x3,
+        CORDEBUG_JIT_ENABLE_ENC = 0x7
+    }
+
     [ComImport, TypeLibType((short) 2), Guid("6FEF44D0-39E7-4C77-BE8E-C9F8CF988630"), ClassInterface((short) 0)]
     public class CorDebugClass : ICorDebug, CorDebug
     {

src/AddIns/Debugger/Debugger.Core/ManagedCallback.cs

@@ -320,6 +320,17 @@ namespace Debugger
 			EnterCallback(PausedReason.Other, "CreateProcess", pProcess);
 
 			// Process is added in NDebugger.Start
+			// disable NGen
+			if (!this.process.Options.EnableJustMyCode && !this.process.Options.StepOverNoSymbols) {
+				ICorDebugProcess2 pProcess2 = pProcess as ICorDebugProcess2;
+				if (pProcess2 != null && Process.DebugMode == DebugModeFlag.Debug) {
+					try {
+						pProcess2.SetDesiredNGENCompilerFlags((uint)CorDebugJITCompilerFlags.CORDEBUG_JIT_DISABLE_OPTIMIZATION);
+					} catch (COMException) {
+						// we cannot set the NGEN flag => no evaluation for optimized code.
+					}
+				}
+			}
 
 			ExitCallback();
 		}

src/AddIns/Debugger/Debugger.Core/MetaData/DebugMethodInfo.cs

@@ -68,7 +68,7 @@ namespace Debugger.MetaData
 					sb.Append(this.ReturnType.Name);
 					sb.Append(" ");
 				} else {
-					sb.Append("void ");
+					sb.Append("System.Void ");
 				}
 				
 				sb.Append(this.DeclaringType.FullName);
@@ -80,7 +80,7 @@ namespace Debugger.MetaData
 					if (!first)
 						sb.Append(", ");
 					first = false;
-					sb.Append(p.ParameterType.Name);
+					sb.Append(p.ParameterType.FullName);
 					sb.Append(" ");
 					sb.Append(p.Name);
 				}
@@ -89,6 +89,37 @@ namespace Debugger.MetaData
 			}
 		}
 		
+		/// <summary> Name including the declaring type, return type without parameters names</summary>
+		public string FullNameWithoutParameterNames {
+			get {
+				StringBuilder sb = new StringBuilder();
+				
+				if (this.IsStatic) {
+					sb.Append("static ");
+				}
+				if (this.ReturnType != null) {
+					sb.Append(this.ReturnType.Name);
+					sb.Append(" ");
+				} else {
+					sb.Append("System.Void ");
+				}
+				
+				sb.Append(this.DeclaringType.FullName);
+				sb.Append(".");
+				sb.Append(this.Name);
+				sb.Append("(");
+				bool first = true;
+				foreach(DebugParameterInfo p in GetParameters()) {
+					if (!first)
+						sb.Append(", ");
+					first = false;
+					sb.Append(p.ParameterType.FullName);
+				}
+				sb.Append(")");
+				return sb.ToString();
+			}
+		}
+		
 		/// <inheritdoc/>
 		public override string Name {
 			get { return methodProps.Name; }
@@ -464,6 +495,19 @@ namespace Debugger.MetaData
 			}
 		}
 		
+		public static Value GetLocalVariableValue(StackFrame context, int varIndex)
+		{
+			ICorDebugValue corVal;
+			try {
+				corVal = context.CorILFrame.GetLocalVariable((uint)varIndex);
+			} catch (COMException e) {
+				if ((uint)e.ErrorCode == 0x80131304) throw new GetValueException("Unavailable in optimized code");
+				// show the message in case of bad index
+				throw new GetValueException(e.Message);
+			}
+			return new Value(context.AppDomain, corVal);
+		}
+		
 		public DebugLocalVariableInfo GetLocalVariable(int offset, string name)
 		{
 			foreach(DebugLocalVariableInfo loc in GetLocalVariables(offset)) {

src/AddIns/Debugger/Debugger.Core/Module.cs

@@ -145,6 +145,22 @@ namespace Debugger
 			}
 		}
 		
+		[Debugger.Tests.Ignore]
+		public CorDebugJITCompilerFlags JITCompilerFlags
+		{
+			get
+			{
+				uint retval = ((ICorDebugModule2)corModule).GetJITCompilerFlags();
+				return (CorDebugJITCompilerFlags)retval;
+			}
+			set
+			{
+				// ICorDebugModule2.SetJITCompilerFlags can return successful HRESULTS other than S_OK.
+				// Since we have asked the COMInterop layer to preservesig, we need to marshal any failing HRESULTS.
+				((ICorDebugModule2)corModule).SetJITCompilerFlags((uint)value);
+			}
+		}
+		
 		/// <summary> Returns all non-generic types defined in the module </summary>
 		/// <remarks> Generic types can not be returned, because we do not know how to instanciate them </remarks>
 		public List<DebugType> GetDefinedTypes()
@@ -183,6 +199,8 @@ namespace Debugger
 				name     = System.IO.Path.GetFileName(FullPath);
 			}
 			
+			SetJITCompilerFlags();
+			
 			LoadSymbolsFromDisk(process.Options.SymbolsSearchPaths);
 			ResetJustMyCodeStatus();
 		}
@@ -282,6 +300,34 @@ namespace Debugger
 			}
 		}
 		
+		void SetJITCompilerFlags()
+		{
+			if (Process.DebugMode != DebugModeFlag.Default) {
+				// translate DebugModeFlags to JITCompilerFlags
+				CorDebugJITCompilerFlags jcf = MapDebugModeToJITCompilerFlags(Process.DebugMode);
+
+				try
+				{
+					this.JITCompilerFlags = jcf;
+
+					// Flags may succeed but not set all bits, so requery.
+					CorDebugJITCompilerFlags jcfActual = this.JITCompilerFlags;
+					
+					#if DEBUG
+					if (jcf != jcfActual)
+						Console.WriteLine("Couldn't set all flags. Actual flags:" + jcfActual.ToString());
+					else
+						Console.WriteLine("Actual flags:" + jcfActual.ToString());
+					#endif
+				}
+				catch (COMException ex)
+				{
+					// we'll ignore the error if we cannot set the jit flags
+					Console.WriteLine(string.Format("Failed to set flags with hr=0x{0:x}", ex.ErrorCode));
+				}
+			}
+		}
+		
 		/// <summary> Sets all code as being 'my code'.  The code will be gradually
 		/// set to not-user-code as encountered acording to stepping options </summary>
 		public void ResetJustMyCodeStatus()
@@ -319,6 +365,29 @@ namespace Debugger
 		{
 			return string.Format("{0}", this.Name);
 		}
+		
+		public static CorDebugJITCompilerFlags MapDebugModeToJITCompilerFlags(DebugModeFlag debugMode)
+		{
+			CorDebugJITCompilerFlags jcf;
+			switch (debugMode)
+			{
+				case DebugModeFlag.Optimized:
+					jcf = CorDebugJITCompilerFlags.CORDEBUG_JIT_DEFAULT; // DEFAULT really means force optimized.
+					break;
+				case DebugModeFlag.Debug:
+					jcf = CorDebugJITCompilerFlags.CORDEBUG_JIT_DISABLE_OPTIMIZATION;
+					break;
+				case DebugModeFlag.Enc:
+					jcf = CorDebugJITCompilerFlags.CORDEBUG_JIT_ENABLE_ENC;
+					break;
+				default:
+					// we don't have mapping from default to "default",
+					// therefore we'll use DISABLE_OPTIMIZATION.
+					jcf = CorDebugJITCompilerFlags.CORDEBUG_JIT_DISABLE_OPTIMIZATION;
+					break;
+			}
+			return jcf;
+		}
 	}
 	
 	[Serializable]

src/AddIns/Debugger/Debugger.Core/NRefactory/Visitors/ExpressionEvaluator.cs

@@ -71,29 +71,33 @@ namespace ICSharpCode.NRefactory.Visitors
 		
 		/// <summary> Evaluate given expression.  If you have expression tree already, use overloads of this method.</summary>
 		/// <returns> Returned value or null for statements </returns>
-		public static Value Evaluate(string code, SupportedLanguage language, StackFrame context)
+		public static Value Evaluate(string code, SupportedLanguage language, StackFrame context, object data = null)
 		{
-			return Evaluate(Parse(code, language), context);
+			return Evaluate(Parse(code, language), context, data);
 		}
 		
 		public static Value Evaluate(INode code, Process context)
 		{
-			if (context.SelectedStackFrame != null) {
-				return Evaluate(code, context.SelectedStackFrame);
-			} else if (context.SelectedThread.MostRecentStackFrame != null ) {
-				return Evaluate(code, context.SelectedThread.MostRecentStackFrame);
-			} else {
+			StackFrame stackFrame;
+			if (context.SelectedStackFrame == null && context.SelectedThread.MostRecentStackFrame == null) 
 				// This can happen when needed 'dll' is missing.  This causes an exception dialog to be shown even before the applicaiton starts
 				throw new GetValueException("Can not evaluate because the process has no managed stack frames");
+			
+			if (context.SelectedStackFrame.ToString() == context.SelectedThread.MostRecentStackFrame.ToString()) {
+				stackFrame = context.SelectedStackFrame;	
+			} else {
+				stackFrame = context.SelectedThread.MostRecentStackFrame;
 			} 
+			
+			return Evaluate(code, stackFrame);
 		}
 		
-		public static Value Evaluate(INode code, StackFrame context)
+		public static Value Evaluate(INode code, StackFrame context, object data = null)
 		{
 			if (context == null) throw new ArgumentNullException("context");
 			if (context.IsInvalid) throw new DebuggerException("The context is no longer valid");
 			
-			TypedValue val = new ExpressionEvaluator(context).Evaluate(code, false);
+			TypedValue val = new ExpressionEvaluator(context).Evaluate(code, false, data);
 			if (val == null)
 				return null;
 			return val.Value;
@@ -164,7 +168,7 @@ namespace ICSharpCode.NRefactory.Visitors
 			return Evaluate(expression, true);
 		}
 		
-		TypedValue Evaluate(INode expression, bool permRef)
+		TypedValue Evaluate(INode expression, bool permRef, object data = null)
 		{
 			// Try to get the value from cache
 			// (the cache is cleared when the process is resumed)
@@ -177,7 +181,7 @@ namespace ICSharpCode.NRefactory.Visitors
 			System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
 			watch.Start();
 			try {
-				val = (TypedValue)expression.AcceptVisitor(this, null);
+				val = (TypedValue)expression.AcceptVisitor(this, data);
 				if (val != null && permRef)
 					val = new TypedValue(val.Value.GetPermanentReference(), val.Type);
 			} catch (GetValueException e) {
@@ -382,6 +386,14 @@ namespace ICSharpCode.NRefactory.Visitors
 			if (loc != null)
 				return new TypedValue(loc.GetValue(context), (DebugType)loc.LocalType);
 			
+			// try get local var from external information - data or UserData
+			int[] localIndex = (data ?? identifierExpression.UserData) as int[];
+			
+			if (localIndex != null) {
+				Value localValue = DebugMethodInfo.GetLocalVariableValue(context, localIndex[0]);
+				return new TypedValue(localValue, localValue.Type);
+			}
+			
 			// Instance class members
 			// Note that the method might be generated instance method that represents anonymous method
 			TypedValue thisValue = GetThisValue();
@@ -554,8 +566,15 @@ namespace ICSharpCode.NRefactory.Visitors
 			DebugLocalVariableInfo thisVar = context.MethodInfo.GetLocalVariableThis();
 			if (thisVar != null)
 				return new TypedValue(thisVar.GetValue(context), (DebugType)thisVar.LocalType);
+			
+			// when symbols are not present
+			try {
+				return new TypedValue(context.GetThisValue(), (DebugType)context.MethodInfo.DeclaringType);
+			} catch (GetValueException) {
+				// static method
 				return null;
 			}
+		}
 		
 		public override object VisitThisReferenceExpression(ThisReferenceExpression thisReferenceExpression, object data)
 		{

src/AddIns/Debugger/Debugger.Core/Options.cs

@@ -5,14 +5,15 @@ namespace Debugger
 {
 	public class Options
 	{
-		public bool EnableJustMyCode = true;
-		public bool StepOverNoSymbols = true;
+		public bool EnableJustMyCode = false;
+		public bool StepOverNoSymbols = false;
 		public bool StepOverDebuggerAttributes = true;
 		public bool StepOverAllProperties = false;
 		public bool StepOverSingleLineProperties = false;
 		public bool StepOverFieldAccessProperties = true;
 		public bool Verbose = false;
 		public string[] SymbolsSearchPaths = new string[0];
-		public bool SuspendOtherThreads = true;
+		public bool SuspendOtherThreads = false;
+		public bool EnableEditAndContinue = false;
 	}
 }

src/AddIns/Debugger/Debugger.Core/Process.cs

@@ -14,6 +14,29 @@ namespace Debugger
 {
 	internal enum DebuggeeStateAction { Keep, Clear }
 	
+	/// <summary>
+	/// Debug Mode Flags.
+	/// </summary>
+	public enum DebugModeFlag
+	{
+		/// <summary>
+		/// Run in the same mode as without debugger.
+		/// </summary>
+		Default,
+		/// <summary>
+		/// Run in forced optimized mode.
+		/// </summary>
+		Optimized,
+		/// <summary>
+		/// Run in debug mode (easy inspection) but slower.
+		/// </summary>
+		Debug,
+		/// <summary>
+		/// Run in ENC mode (ENC possible) but even slower than debug
+		/// </summary>
+		Enc
+	}
+	
 	public class Process: DebuggerObject
 	{
 		NDebugger debugger;
@@ -28,6 +51,7 @@ namespace Debugger
 		
 		string workingDirectory;
 		
+		
 		public NDebugger Debugger {
 			get { return debugger; }
 		}
@@ -108,6 +132,8 @@ namespace Debugger
 			get { return workingDirectory; }
 		}
 		
+		public static DebugModeFlag DebugMode { get; set; }
+		
 		internal Process(NDebugger debugger, ICorDebugProcess corProcess, string workingDirectory)
 		{
 			this.debugger = debugger;
@@ -665,8 +691,13 @@ namespace Debugger
 				}
 				BreakAtBeginning = false;
 			}
+			
+			if (ModulesAdded != null)
+				ModulesAdded(this, new ModuleEventArgs(e.Item));
 		}
 		
 		#endregion
+		
+		public event EventHandler<ModuleEventArgs> ModulesAdded;
 	}
 }

src/AddIns/Debugger/Debugger.Core/SourcecodeSegment.cs

@@ -16,6 +16,7 @@ namespace Debugger
 		Module module;
 		
 		string filename;
+		string typename;
 		byte[] checkSum;
 		int startLine;
 		int startColumn;
@@ -35,6 +36,10 @@ namespace Debugger
 			get { return filename; }
 		}
 		
+		public string Typename {
+			get { return typename; }
+		}
+		
 		public byte[] CheckSum {
 			get { return checkSum; }
 		}
@@ -336,7 +341,57 @@ namespace Debugger
 		
 		public override string ToString()
 		{
-			return string.Format("{0}:{1},{2}-{3},{4}", Path.GetFileName(this.Filename), this.startLine, this.startColumn, this.endLine, this.endColumn);
+			return string.Format("{0}:{1},{2}-{3},{4}",
+			                     Path.GetFileName(this.Filename ?? string.Empty),
+			                     this.startLine, this.startColumn, this.endLine, this.endColumn);
+		}
+		
+		#region ILSpy
+		
+		public static SourcecodeSegment CreateForIL(Module module, int line, int metadataToken, int iLOffset)
+		{
+			try {
+				SourcecodeSegment segment = new SourcecodeSegment();
+				segment.module        = module;
+				segment.typename      = null;
+				segment.checkSum      = null;
+				segment.startLine     = line;
+				segment.startColumn   = 0;
+				segment.endLine       = line;
+				segment.endColumn     = 0;
+				segment.corFunction   = module.CorModule.GetFunctionFromToken((uint)metadataToken);
+				segment.ilStart 	  = iLOffset;
+				segment.ilEnd   	  = iLOffset;
+				segment.stepRanges    = null;
+				
+				return segment;
+			} catch {
+				return null;
+			}
+		}
+		
+		public static SourcecodeSegment ResolveForIL(Module module, ICorDebugFunction corFunction, int line, int offset, int[] ranges)
+		{
+			try {				
+				SourcecodeSegment segment = new SourcecodeSegment();
+				segment.module        = module;
+				segment.typename      = null;
+				segment.checkSum      = null;
+				segment.startLine     = line;
+				segment.startColumn   = 0;
+				segment.endLine       = line;
+				segment.endColumn     = 0;
+				segment.corFunction   = corFunction;
+				segment.ilStart 	  = offset;
+				segment.ilEnd   	  = ranges[1];
+				segment.stepRanges    = ranges;
+				
+				return segment;
+			} catch {
+				return null;
+			}
 		}
+		
+		#endregion
 	}
 }

src/AddIns/Debugger/Debugger.Core/StackFrame.cs

@@ -139,8 +139,14 @@ namespace Debugger
 			}
 		}
 		
+		public int[] ILRanges { get; set; }
+		
+		public int SourceCodeLine { get; set; }
+		
 		SourcecodeSegment GetSegmentForOffet(int offset)
 		{
+			if (SourceCodeLine != 0)
+				return SourcecodeSegment.ResolveForIL(this.MethodInfo.DebugModule, corFunction, SourceCodeLine, offset, ILRanges);
 			return SourcecodeSegment.Resolve(this.MethodInfo.DebugModule, corFunction, offset);
 		}
 		
@@ -187,17 +193,23 @@ namespace Debugger
 		
 		void AsyncStep(bool stepIn)
 		{
-			if (this.MethodInfo.DebugModule.HasSymbols == false) {
+			if (this.MethodInfo.DebugModule.HasSymbols == false && process.Options.StepOverNoSymbols) {
 				throw new DebuggerException("Unable to step. No symbols loaded.");
 			}
 			
+			int[] stepRanges;
+			if (ILRanges == null) {
 				SourcecodeSegment nextSt = NextStatement;
 				if (nextSt == null) {
 					throw new DebuggerException("Unable to step. Next statement not aviable");
 				}
+				stepRanges = nextSt.StepRanges;
+			} else {
+				stepRanges = ILRanges;
+			}
 			
 			if (stepIn) {
-				Stepper stepInStepper = Stepper.StepIn(this, nextSt.StepRanges, "normal");
+				Stepper stepInStepper = Stepper.StepIn(this, stepRanges, "normal");
 				this.Thread.CurrentStepIn = stepInStepper;
 				Stepper clearCurrentStepIn = Stepper.StepOut(this, "clear current step in");
 				clearCurrentStepIn.StepComplete += delegate {
@@ -207,7 +219,7 @@ namespace Debugger
 				};
 				clearCurrentStepIn.Ignore = true;
 			} else {
-				Stepper.StepOver(this, nextSt.StepRanges, "normal");
+				Stepper.StepOver(this, stepRanges, "normal");
 			}
 			
 			AsyncContinue();

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/CodeEditor.cs

@@ -31,11 +31,20 @@ using ICSharpCode.SharpDevelop.Editor.CodeCompletion;
 
 namespace ICSharpCode.AvalonEdit.AddIn
 {
+	public interface ICodeEditor
+	{
+		TextDocument Document { get; }
+		
+		void Redraw(ISegment segment, DispatcherPriority priority);
+		
+		event EventHandler DocumentChanged;
+	}
+	
 	/// <summary>
 	/// Integrates AvalonEdit with SharpDevelop.
 	/// Also provides support for Split-View (showing two AvalonEdit instances using the same TextDocument)
 	/// </summary>
-	public class CodeEditor : Grid, IDisposable
+	public class CodeEditor : Grid, IDisposable, ICodeEditor
 	{
 		const string contextMenuPath = "/SharpDevelop/ViewContent/AvalonEdit/ContextMenu";
 		

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/IconBarManager.cs

@@ -40,7 +40,7 @@ namespace ICSharpCode.AvalonEdit.AddIn
 		
 		public event EventHandler RedrawRequested;
 		
-		internal void UpdateClassMemberBookmarks(ParseInformation parseInfo)
+		public void UpdateClassMemberBookmarks(ParseInformation parseInfo)
 		{
 			for (int i = bookmarks.Count - 1; i >= 0; i--) {
 				if (IsClassMemberBookmark(bookmarks[i]))

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/IconBarMargin.cs

@@ -20,9 +20,9 @@ namespace ICSharpCode.AvalonEdit.AddIn
 	/// </summary>
 	public class IconBarMargin : AbstractMargin, IDisposable
 	{
-		readonly IconBarManager manager;
+		readonly IBookmarkMargin manager;
 		
-		public IconBarMargin(IconBarManager manager)
+		public IconBarMargin(IBookmarkMargin manager)
 		{
 			if (manager == null)
 				throw new ArgumentNullException("manager");

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/TextMarkerService.cs

@@ -18,12 +18,12 @@ namespace ICSharpCode.AvalonEdit.AddIn
 	/// <summary>
 	/// Handles the text markers for a code editor.
 	/// </summary>
-	sealed class TextMarkerService : DocumentColorizingTransformer, IBackgroundRenderer, ITextMarkerService
+	public sealed class TextMarkerService : DocumentColorizingTransformer, IBackgroundRenderer, ITextMarkerService
 	{
-		readonly CodeEditor codeEditor;
+		readonly ICodeEditor codeEditor;
 		TextSegmentCollection<TextMarker> markers;
 		
-		public TextMarkerService(CodeEditor codeEditor)
+		public TextMarkerService(ICodeEditor codeEditor)
 		{
 			if (codeEditor == null)
 				throw new ArgumentNullException("codeEditor");
@@ -200,7 +200,7 @@ namespace ICSharpCode.AvalonEdit.AddIn
 		#endregion
 	}
 	
-	sealed class TextMarker : TextSegment, ITextMarker
+	public sealed class TextMarker : TextSegment, ITextMarker
 	{
 		readonly TextMarkerService service;
 		

src/AddIns/DisplayBindings/ILSpyAddIn/ILSpyAddIn.csproj

@@ -99,6 +99,10 @@
       <Project>{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}</Project>
       <Name>ICSharpCode.NRefactory</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\Libraries\NRefactory\Project\NRefactory.csproj">
+      <Project>{3A9AE6AA-BC07-4A2F-972C-581E3AE2F195}</Project>
+      <Name>NRefactory</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Main\Base\Project\ICSharpCode.SharpDevelop.csproj">
       <Project>{2748AD25-9C63-4E12-877B-4DCE96FBED54}</Project>
       <Name>ICSharpCode.SharpDevelop</Name>

src/AddIns/DisplayBindings/ILSpyAddIn/NavigateToDecompiledEntityService.cs

@@ -4,15 +4,18 @@
 using System;
 using System.IO;
 using System.Linq;
+
+using ICSharpCode.Core.Services;
 using ICSharpCode.SharpDevelop;
+using ICSharpCode.SharpDevelop.Debugging;
 using ICSharpCode.SharpDevelop.Dom;
 using ICSharpCode.SharpDevelop.Gui;
 
 namespace ICSharpCode.ILSpyAddIn
 {
-	public class NavigateToDecompiledEntityService : INavigateToEntityService
+	public class NavigateToDecompiledEntityService : INavigateToEntityService, INavigateToMemberService
 	{
-		public bool NavigateTo(IEntity entity)
+		public bool NavigateToEntity(IEntity entity)
 		{
 			if (entity == null)
 				throw new ArgumentNullException("entity");
@@ -41,6 +44,12 @@ namespace ICSharpCode.ILSpyAddIn
 		
 		public static void NavigateTo(string assemblyFile, string typeName, string entityTag)
 		{
+			if (string.IsNullOrEmpty(assemblyFile))
+				throw new ArgumentException("assemblyFile is null or empty");
+			
+			if (string.IsNullOrEmpty(typeName))
+				throw new ArgumentException("typeName is null or empty");
+			
 			foreach (var vc in WorkbenchSingleton.Workbench.ViewContentCollection.OfType<DecompiledViewContent>()) {
 				if (string.Equals(vc.AssemblyFile, assemblyFile, StringComparison.OrdinalIgnoreCase) && typeName == vc.FullTypeName) {
 					vc.WorkbenchWindow.SelectWindow();
@@ -50,5 +59,18 @@ namespace ICSharpCode.ILSpyAddIn
 			}
 			WorkbenchSingleton.Workbench.ShowView(new DecompiledViewContent(assemblyFile, typeName, entityTag));
 		}
+		
+		public bool NavigateToMember(string assemblyFile, string typeName, string entityTag)
+		{
+			//close the window if exists - this is a workaround
+			foreach (var vc in WorkbenchSingleton.Workbench.ViewContentCollection.OfType<DecompiledViewContent>()) {
+				if (string.Equals(vc.AssemblyFile, assemblyFile, StringComparison.OrdinalIgnoreCase) && typeName == vc.FullTypeName) {
+					vc.WorkbenchWindow.CloseWindow(true);
+					break;
+				}
+			}
+			WorkbenchSingleton.Workbench.ShowView(new DecompiledViewContent(assemblyFile, typeName, entityTag));
+			return true;
+		}
 	}
 }

src/AddIns/DisplayBindings/ILSpyAddIn/ViewContent/CodeView.cs

@@ -2,33 +2,243 @@
 // This code is distributed under MIT X11 license (for details please see \doc\license.txt)
 
 using System;
+using System.Diagnostics;
+using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+
+using ICSharpCode.AvalonEdit;
 using ICSharpCode.AvalonEdit.AddIn;
 using ICSharpCode.AvalonEdit.Document;
 using ICSharpCode.AvalonEdit.Highlighting;
+using ICSharpCode.AvalonEdit.Rendering;
+using ICSharpCode.SharpDevelop;
+using ICSharpCode.SharpDevelop.Editor;
+using ICSharpCode.SharpDevelop.Editor.AvalonEdit;
 
 namespace ICSharpCode.ILSpyAddIn.ViewContent
 {
 	/// <summary>
 	/// Equivalent to AE.AddIn CodeEditor, but without editing capabilities.
 	/// </summary>
-	public class CodeView : Grid, IDisposable
+	public class CodeView : Grid, IDisposable, ICodeEditor
 	{
-		readonly SharpDevelopTextEditor textEditor = new SharpDevelopTextEditor();
+		public event EventHandler DocumentChanged;
+		
+		readonly AvalonEditTextEditorAdapter adapter = new AvalonEditTextEditorAdapter(new SharpDevelopTextEditor { IsReadOnly = true });
+		readonly IconBarManager iconBarManager;
+		readonly IconBarMargin iconMargin;
+		readonly TextMarkerService textMarkerService;
 		
 		public CodeView()
 		{
-			this.Children.Add(textEditor);
-			textEditor.SyntaxHighlighting = HighlightingManager.Instance.GetDefinition("C#");
+			this.Children.Add(adapter.TextEditor);
+			adapter.TextEditor.SyntaxHighlighting = HighlightingManager.Instance.GetDefinition("C#");
+			
+			// add margin
+			iconMargin = new IconBarMargin(iconBarManager = new IconBarManager());
+			adapter.TextEditor.TextArea.LeftMargins.Insert(0, iconMargin);
+			adapter.TextEditor.TextArea.TextView.VisualLinesChanged += delegate { iconMargin.InvalidateVisual(); };
+			
+			// add marker service
+			textMarkerService = new TextMarkerService(this);
+			adapter.TextEditor.TextArea.TextView.BackgroundRenderers.Add(textMarkerService);
+			adapter.TextEditor.TextArea.TextView.LineTransformers.Add(textMarkerService);
+			adapter.TextEditor.TextArea.TextView.Services.AddService(typeof(ITextMarkerService), textMarkerService);
+			
+			// add events
+			this.adapter.TextEditor.MouseHover += TextEditorMouseHover;
+			this.adapter.TextEditor.MouseHoverStopped += TextEditorMouseHoverStopped;
+			this.adapter.TextEditor.MouseLeave += TextEditorMouseLeave;
+		}
+
+		#region Popup
+		ToolTip toolTip;
+		Popup popup;
+		
+		void TextEditorMouseHover(object sender, MouseEventArgs e)
+		{
+			ToolTipRequestEventArgs args = new ToolTipRequestEventArgs(this.adapter);
+			var pos = adapter.TextEditor.GetPositionFromPoint(e.GetPosition(this));
+			args.InDocument = pos.HasValue;
+			if (pos.HasValue) {
+				args.LogicalPosition = AvalonEditDocumentAdapter.ToLocation(pos.Value);
+			}
+			
+			if (!args.Handled) {
+				// if request wasn't handled by a marker, pass it to the ToolTipRequestService
+				ToolTipRequestService.RequestToolTip(args);
+			}
+			
+			if (args.ContentToShow != null) {
+				var contentToShowITooltip = args.ContentToShow as ITooltip;
+				
+				if (contentToShowITooltip != null && contentToShowITooltip.ShowAsPopup) {
+					if (!(args.ContentToShow is UIElement)) {
+						throw new NotSupportedException("Content to show in Popup must be UIElement: " + args.ContentToShow);
+					}
+					if (popup == null) {
+						popup = CreatePopup();
+					}
+					if (TryCloseExistingPopup(false)) {
+						// when popup content decides to close, close the popup
+						contentToShowITooltip.Closed += (closedSender, closedArgs) => { popup.IsOpen = false; };
+						popup.Child = (UIElement)args.ContentToShow;
+						//ICSharpCode.SharpDevelop.Debugging.DebuggerService.CurrentDebugger.IsProcessRunningChanged
+						SetPopupPosition(popup, e);
+						popup.IsOpen = true;
+					}
+					e.Handled = true;
+				} else {
+					if (toolTip == null) {
+						toolTip = new ToolTip();
+						toolTip.Closed += delegate { toolTip = null; };
+					}
+					toolTip.PlacementTarget = this.adapter.TextEditor; // required for property inheritance
+					
+					if(args.ContentToShow is string) {
+						toolTip.Content = new TextBlock
+						{
+							Text = args.ContentToShow as string,
+							TextWrapping = TextWrapping.Wrap
+						};
+					}
+					else
+						toolTip.Content = args.ContentToShow;
+					
+					toolTip.IsOpen = true;
+					e.Handled = true;
+				}
+			} else {
+				// close popup if mouse hovered over empty area
+				if (popup != null) {
+					e.Handled = true;
+				}
+				TryCloseExistingPopup(false);
+			}
+		}
+		
+		bool TryCloseExistingPopup(bool mouseClick)
+		{
+			bool canClose = true;
+			if (popup != null) {
+				var popupContentITooltip = popup.Child as ITooltip;
+				if (popupContentITooltip != null) {
+					canClose = popupContentITooltip.Close(mouseClick);
+				}
+				if (canClose) {
+					popup.IsOpen = false;
+				}
+			}
+			return canClose;
+		}
+		
+		void SetPopupPosition(Popup popup, MouseEventArgs mouseArgs)
+		{
+			var popupPosition = GetPopupPosition(mouseArgs);
+			popup.HorizontalOffset = popupPosition.X;
+			popup.VerticalOffset = popupPosition.Y;
+		}
+		
+		/// <summary> Returns Popup position based on mouse position, in device independent units </summary>
+		Point GetPopupPosition(MouseEventArgs mouseArgs)
+		{
+			Point mousePos = mouseArgs.GetPosition(this);
+			Point positionInPixels;
+			// align Popup with line bottom
+			TextViewPosition? logicalPos = adapter.TextEditor.GetPositionFromPoint(mousePos);
+			if (logicalPos.HasValue) {
+				var textView = adapter.TextEditor.TextArea.TextView;
+				positionInPixels =
+					textView.PointToScreen(
+						textView.GetVisualPosition(logicalPos.Value, VisualYPosition.LineBottom) - textView.ScrollOffset);
+				positionInPixels.X -= 4;
+			} else {
+				positionInPixels = PointToScreen(mousePos + new Vector(-4, 6));
+			}
+			// use device independent units, because Popup Left/Top are in independent units
+			return positionInPixels.TransformFromDevice(this);
+		}
+		
+		Popup CreatePopup()
+		{
+			popup = new Popup();
+			popup.Closed += (s, e) => popup = null;
+			popup.AllowsTransparency = true;
+			popup.PlacementTarget = this; // required for property inheritance
+			popup.Placement = PlacementMode.Absolute;
+			popup.StaysOpen = true;
+			return popup;
+		}
+		
+		void TextEditorMouseHoverStopped(object sender, MouseEventArgs e)
+		{
+			if (toolTip != null) {
+				toolTip.IsOpen = false;
+				e.Handled = true;
+			}
+			
+			TextEditorMouseLeave(sender, e);
+		}
+		
+		void TextEditorMouseLeave(object sender, MouseEventArgs e)
+		{
+			if (popup != null && !popup.IsMouseOver) {
+				// do not close popup if mouse moved from editor to popup
+				TryCloseExistingPopup(false);
+			}
 		}
 		
+		#endregion
+		
 		public TextDocument Document {
-			get { return textEditor.Document; }
-			set { textEditor.Document = value; }
+			get { return adapter.TextEditor.Document; }
+			set {
+				adapter.TextEditor.Document = value;
+				if (DocumentChanged != null) {
+					DocumentChanged(value, EventArgs.Empty);
+				}
+			}
+		}
+		
+		public ITextEditor TextEditor {
+			get {
+				return adapter;
+			}
+		}
+		
+		public IconBarManager IconBarManager {
+			get { return iconBarManager; }
 		}
 		
 		public void Dispose()
 		{
 		}
+		
+		public void UnfoldAndScroll(int lineNumber)
+		{
+			if (lineNumber <= 0 || lineNumber > adapter.Document.TotalNumberOfLines)
+				return;
+			
+			//var line = adapter.TextEditor.Document.GetLineByNumber(lineNumber);
+			
+			// unfold
+//			var foldings = foldingManager.GetFoldingsContaining(line.Offset);
+//			if (foldings != null) {
+//				foreach (var folding in foldings) {
+//					if (folding.IsFolded) {
+//						folding.IsFolded = false;
+//					}
+//				}
+//			}
+			// scroll to
+			adapter.TextEditor.ScrollTo(lineNumber, 0);
+		}
+		
+		public void Redraw(ISegment segment, System.Windows.Threading.DispatcherPriority priority)
+		{
+			this.adapter.TextEditor.TextArea.TextView.Redraw(segment, priority);
+		}
 	}
 }

src/AddIns/DisplayBindings/ILSpyAddIn/ViewContent/DecompiledViewContent.cs

@@ -2,14 +2,25 @@
 // This code is distributed under MIT X11 license (for details please see \doc\license.txt)
 
 using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Threading;
+
 using ICSharpCode.AvalonEdit.Document;
 using ICSharpCode.Core;
 using ICSharpCode.Decompiler;
 using ICSharpCode.Decompiler.Ast;
+using ICSharpCode.Decompiler.ILAst;
 using ICSharpCode.ILSpyAddIn.ViewContent;
+using ICSharpCode.NRefactory.CSharp;
 using ICSharpCode.NRefactory.TypeSystem;
+using ICSharpCode.NRefactory.Utils;
+using ICSharpCode.SharpDevelop;
+using ICSharpCode.SharpDevelop.Bookmarks;
+using ICSharpCode.SharpDevelop.Debugging;
+using ICSharpCode.SharpDevelop.Dom;
 using ICSharpCode.SharpDevelop.Gui;
 using Mono.Cecil;
 
@@ -46,7 +57,9 @@ namespace ICSharpCode.ILSpyAddIn
 			Thread thread = new Thread(DecompilationThread);
 			thread.Name = "Decompiler (" + shortTypeName + ")";
 			thread.Start();
+			BookmarkManager.Removed += BookmarkManager_Removed;
 		}
+
 		#endregion
 		
 		#region Properties
@@ -61,6 +74,10 @@ namespace ICSharpCode.ILSpyAddIn
 		public override object Control {
 			get { return codeView; }
 		}
+		
+		public override bool IsReadOnly {
+			get { return true; }
+		}
 		#endregion
 		
 		#region Dispose
@@ -68,6 +85,7 @@ namespace ICSharpCode.ILSpyAddIn
 		{
 			cancellation.Cancel();
 			codeView.Dispose();
+			BookmarkManager.Removed -= BookmarkManager_Removed;
 			base.Dispose();
 		}
 		#endregion
@@ -139,6 +157,17 @@ namespace ICSharpCode.ILSpyAddIn
 			AstBuilder astBuilder = new AstBuilder(context);
 			astBuilder.AddType(typeDefinition);
 			astBuilder.GenerateCode(textOutput);
+			
+			// save decompilation data
+			var nodes = TreeTraversal
+				.PreOrder((AstNode)astBuilder.CompilationUnit, n => n.Children)
+				.Where(n => n is AttributedNode && n.Annotation<Tuple<int, int>>() != null);
+			DebuggerService.ExternalDebugInformation = new DecompileInformation {
+				CodeMappings = astBuilder.CodeMappings,
+				LocalVariables = astBuilder.LocalVariables,
+				DecompiledMemberReferences = astBuilder.DecompiledMemberReferences,
+				AstNodes = nodes
+			};
 		}
 		
 		void OnDecompilationFinished(StringWriter output)
@@ -150,6 +179,53 @@ namespace ICSharpCode.ILSpyAddIn
 			
 			this.decompilationFinished = true;
 			JumpToEntity(this.jumpToEntityTagWhenDecompilationFinished);
+			
+			// update UI
+			UpdateIconMargin(output.ToString());
+			UpdateDebuggingUI();
+		}
+		#endregion
+		
+		#region Update UI
+		void UpdateIconMargin(string text)
+		{
+			string tempFileName = string.Format("decompiled/{0}.cs", fullTypeName);
+			
+			codeView.IconBarManager.UpdateClassMemberBookmarks(ParserService.ParseFile(tempFileName, new StringTextBuffer(text)));
+		}
+		
+		void UpdateDebuggingUI()
+		{
+			if (!DebuggerService.IsDebuggerStarted)
+				return;
+			
+			if (DebuggerService.DebugStepInformation != null) {
+				// get debugging information
+				DecompileInformation debugInformation = (DecompileInformation)DebuggerService.ExternalDebugInformation;
+				int token = DebuggerService.DebugStepInformation.Item1;
+				int ilOffset = DebuggerService.DebugStepInformation.Item2;
+				int line;
+				MemberReference member;
+				if (!debugInformation.CodeMappings.ContainsKey(token))
+					return;
+				
+				debugInformation.CodeMappings[token].GetInstructionByTokenAndOffset(token, ilOffset, out member, out line);
+				
+				// update bookmark & marker
+				codeView.UnfoldAndScroll(line);
+				CurrentLineBookmark.SetPosition(this, line, 0, line, 0);
+			}
+		}
+		#endregion
+		
+		#region Bookmarks
+		void BookmarkManager_Removed(object sender, BookmarkEventArgs e)
+		{
+			var mark = e.Bookmark;
+			if (mark != null && codeView.IconBarManager.Bookmarks.Contains(mark)) {
+				codeView.IconBarManager.Bookmarks.Remove(mark);
+				mark.Document = null;
+			}
 		}
 		#endregion
 	}

src/Libraries/ICSharpCode.Decompiler/Ast/AstBuilder.cs

@@ -1,4 +1,23 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Diagnostics;
@@ -7,6 +26,7 @@ using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Threading;
+
 using ICSharpCode.Decompiler;
 using ICSharpCode.Decompiler.Ast.Transforms;
 using ICSharpCode.Decompiler.ILAst;
@@ -26,10 +46,11 @@ namespace ICSharpCode.Decompiler.Ast
 	{
 		None = 0,
 		IncludeNamespace = 1,
-		IncludeTypeParameterDefinitions = 2
+		IncludeTypeParameterDefinitions = 2,
+		DoNotUsePrimitiveTypeNames = 4
 	}
 	
-	public class AstBuilder
+	public class AstBuilder : BaseCodeMappings
 	{
 		DecompilerContext context;
 		CompilationUnit astCompileUnit = new CompilationUnit();
@@ -42,6 +63,10 @@ namespace ICSharpCode.Decompiler.Ast
 				throw new ArgumentNullException("context");
 			this.context = context;
 			this.DecompileMethodBodies = true;
+			
+			this.LocalVariables = new ConcurrentDictionary<int, IEnumerable<ILVariable>>();
+			this.CodeMappings = new Dictionary<int, List<MemberMapping>>();
+			this.DecompiledMemberReferences = new Dictionary<int, MemberReference>();
 		}
 		
 		public static bool MemberIsHidden(MemberReference member, DecompilerSettings settings)
@@ -121,8 +146,28 @@ namespace ICSharpCode.Decompiler.Ast
 		
 		public void AddAssembly(AssemblyDefinition assemblyDefinition, bool onlyAssemblyLevel = false)
 		{
+			if (assemblyDefinition.Name.Version != null) {
+				astCompileUnit.AddChild(
+					new AttributeSection {
+						AttributeTarget = "assembly",
+						Attributes = {
+							new NRefactory.CSharp.Attribute {
+								Type = new SimpleType("AssemblyVersion")
+									.WithAnnotation(new TypeReference(
+										"System.Reflection", "AssemblyVersionAttribute",
+										assemblyDefinition.MainModule, assemblyDefinition.MainModule.TypeSystem.Corlib)),
+								Arguments = {
+									new PrimitiveExpression(assemblyDefinition.Name.Version.ToString())
+								}
+							}
+						}
+					}, AttributedNode.AttributeRole);
+			}
+			
 			ConvertCustomAttributes(astCompileUnit, assemblyDefinition, "assembly");
+			ConvertSecurityAttributes(astCompileUnit, assemblyDefinition, "assembly");
 			ConvertCustomAttributes(astCompileUnit, assemblyDefinition.MainModule, "module");
+			AddTypeForwarderAttributes(astCompileUnit, assemblyDefinition.MainModule, "assembly");
 			
 			if (!onlyAssemblyLevel) {
 				foreach (TypeDefinition typeDef in assemblyDefinition.MainModule.Types) {
@@ -137,6 +182,30 @@ namespace ICSharpCode.Decompiler.Ast
 			}
 		}
 		
+		void AddTypeForwarderAttributes(CompilationUnit astCompileUnit, ModuleDefinition module, string target)
+		{
+			if (!module.HasExportedTypes)
+				return;
+			foreach (ExportedType type in module.ExportedTypes) {
+				if (type.IsForwarder) {
+					var forwardedType = CreateTypeOfExpression(new TypeReference(type.Namespace, type.Name, module, type.Scope));
+					astCompileUnit.AddChild(
+						new AttributeSection {
+							AttributeTarget = target,
+							Attributes = {
+								new NRefactory.CSharp.Attribute {
+									Type = new SimpleType("TypeForwardedTo")
+										.WithAnnotation(new TypeReference(
+											"System.Runtime.CompilerServices", "TypeForwardedToAttribute",
+											module, module.TypeSystem.Corlib)),
+									Arguments = { forwardedType }
+								}
+							}
+						}, AttributedNode.AttributeRole);
+				}
+			}
+		}
+		
 		NamespaceDeclaration GetCodeNamespace(string name)
 		{
 			if (string.IsNullOrEmpty(name)) {
@@ -192,6 +261,7 @@ namespace ICSharpCode.Decompiler.Ast
 		/// <returns>TypeDeclaration or DelegateDeclaration.</returns>
 		public AttributedNode CreateType(TypeDefinition typeDef)
 		{
+			// create type
 			TypeDefinition oldCurrentType = context.CurrentType;
 			context.CurrentType = typeDef;
 			TypeDeclaration astType = new TypeDeclaration();
@@ -219,13 +289,6 @@ namespace ICSharpCode.Decompiler.Ast
 			astType.TypeParameters.AddRange(MakeTypeParameters(genericParameters));
 			astType.Constraints.AddRange(MakeConstraints(genericParameters));
 			
-			// Nested types
-			foreach (TypeDefinition nestedTypeDef in typeDef.NestedTypes) {
-				if (MemberIsHidden(nestedTypeDef, context.Settings))
-					continue;
-				astType.AddChild(CreateType(nestedTypeDef), TypeDeclaration.MemberRole);
-			}
-			
 			AttributedNode result = astType;
 			if (typeDef.IsEnum) {
 				long expectedEnumMemberValue = 0;
@@ -238,6 +301,7 @@ namespace ICSharpCode.Decompiler.Ast
 						}
 					} else {
 						EnumMemberDeclaration enumMember = new EnumMemberDeclaration();
+						enumMember.AddAnnotation(field);
 						enumMember.Name = CleanName(field.Name);
 						long memberValue = (long)CSharpPrimitiveCast.Cast(TypeCode.Int64, field.Constant, false);
 						if (forcePrintingInitializers || memberValue != expectedEnumMemberValue) {
@@ -259,6 +323,7 @@ namespace ICSharpCode.Decompiler.Ast
 					if (m.Name == "Invoke") {
 						dd.ReturnType = ConvertType(m.ReturnType, m.MethodReturnType);
 						dd.Parameters.AddRange(MakeParameters(m));
+						ConvertAttributes(dd, m.MethodReturnType, m.Module);
 					}
 				}
 				result = dd;
@@ -302,6 +367,45 @@ namespace ICSharpCode.Decompiler.Ast
 			return name;
 		}
 
+		#region Create TypeOf Expression
+		/// <summary>
+		/// Creates a typeof-expression for the specified type.
+		/// </summary>
+		public static TypeOfExpression CreateTypeOfExpression(TypeReference type)
+		{
+			return new TypeOfExpression(AddEmptyTypeArgumentsForUnboundGenerics(ConvertType(type)));
+		}
+		
+		static AstType AddEmptyTypeArgumentsForUnboundGenerics(AstType type)
+		{
+			TypeReference typeRef = type.Annotation<TypeReference>();
+			if (typeRef == null)
+				return type;
+			TypeDefinition typeDef = typeRef.Resolve(); // need to resolve to figure out the number of type parameters
+			if (typeDef == null || !typeDef.HasGenericParameters)
+				return type;
+			SimpleType sType = type as SimpleType;
+			MemberType mType = type as MemberType;
+			if (sType != null) {
+				while (typeDef.GenericParameters.Count > sType.TypeArguments.Count) {
+					sType.TypeArguments.Add(new SimpleType(""));
+				}
+			}
+			
+			if (mType != null) {
+				AddEmptyTypeArgumentsForUnboundGenerics(mType.Target);
+				
+				int outerTypeParamCount = typeDef.DeclaringType == null ? 0 : typeDef.DeclaringType.GenericParameters.Count;
+				
+				while (typeDef.GenericParameters.Count - outerTypeParamCount > mType.TypeArguments.Count) {
+					mType.TypeArguments.Add(new SimpleType(""));
+				}
+			}
+			
+			return type;
+		}
+		#endregion
+		
 		#region Convert Type Reference
 		/// <summary>
 		/// Converts a type reference.
@@ -376,6 +480,8 @@ namespace ICSharpCode.Decompiler.Ast
 					return new PrimitiveType("dynamic");
 				} else {
 					if (ns == "System") {
+						if ((options & ConvertTypeOptions.DoNotUsePrimitiveTypeNames)
+						    != ConvertTypeOptions.DoNotUsePrimitiveTypeNames) {
 							switch (name) {
 								case "SByte":
 									return new PrimitiveType("sbyte");
@@ -411,6 +517,7 @@ namespace ICSharpCode.Decompiler.Ast
 									return new PrimitiveType("object");
 							}
 						}
+					}
 					
 					name = ICSharpCode.NRefactory.TypeSystem.ReflectionHelper.SplitTypeParameterCountFromReflectionName(name);
 					
@@ -585,6 +692,15 @@ namespace ICSharpCode.Decompiler.Ast
 		
 		void AddTypeMembers(TypeDeclaration astType, TypeDefinition typeDef)
 		{
+			// Nested types
+			foreach (TypeDefinition nestedTypeDef in typeDef.NestedTypes) {
+				if (MemberIsHidden(nestedTypeDef, context.Settings))
+					continue;
+				var nestedType = CreateType(nestedTypeDef);
+				SetNewModifier(nestedType);
+				astType.AddChild(nestedType, TypeDeclaration.MemberRole);
+			}
+			
 			// Add fields
 			foreach(FieldDefinition fieldDef in typeDef.Fields) {
 				if (MemberIsHidden(fieldDef, context.Settings)) continue;
@@ -614,22 +730,26 @@ namespace ICSharpCode.Decompiler.Ast
 
 		AttributedNode CreateMethod(MethodDefinition methodDef)
 		{
-			MethodDeclaration astMethod = new MethodDeclaration();
+			// Create mapping - used in debugger
+			CreateCodeMappings(methodDef.MetadataToken.ToInt32(), methodDef);
+			MemberMapping methodMapping = methodDef.CreateCodeMapping(this.CodeMappings[methodDef.MetadataToken.ToInt32()]);
+			
+			MethodDeclaration astMethod = new MethodDeclaration().WithAnnotation(methodMapping);
 			astMethod.AddAnnotation(methodDef);
 			astMethod.ReturnType = ConvertType(methodDef.ReturnType, methodDef.MethodReturnType);
 			astMethod.Name = CleanName(methodDef.Name);
 			astMethod.TypeParameters.AddRange(MakeTypeParameters(methodDef.GenericParameters));
 			astMethod.Parameters.AddRange(MakeParameters(methodDef));
-			astMethod.Constraints.AddRange(MakeConstraints(methodDef.GenericParameters));
+			// constraints for override and explicit interface implementation methods are inherited from the base method, so they cannot be specified directly
+			if (!methodDef.IsVirtual || (methodDef.IsNewSlot && !methodDef.IsPrivate)) astMethod.Constraints.AddRange(MakeConstraints(methodDef.GenericParameters));
 			if (!methodDef.DeclaringType.IsInterface) {
 				if (!methodDef.HasOverrides) {
 					astMethod.Modifiers = ConvertModifiers(methodDef);
-					if (methodDef.IsVirtual ^ !methodDef.IsNewSlot) {
-						if (TypesHierarchyHelpers.FindBaseMethods(methodDef).Any())
-							astMethod.Modifiers |= Modifiers.New;
-					}
-				} else
+					if (methodDef.IsVirtual == methodDef.IsNewSlot)
+						SetNewModifier(astMethod);
+				} else {
 					astMethod.PrivateImplementationType = ConvertType(methodDef.Overrides.First().DeclaringType);
+				}
 				astMethod.Body = CreateMethodBody(methodDef, astMethod.Parameters);
 			}
 			ConvertAttributes(astMethod, methodDef);
@@ -699,6 +819,10 @@ namespace ICSharpCode.Decompiler.Ast
 		
 		ConstructorDeclaration CreateConstructor(MethodDefinition methodDef)
 		{
+			// Create mapping - used in debugger
+			CreateCodeMappings(methodDef.MetadataToken.ToInt32(), methodDef);
+			MemberMapping methodMapping = methodDef.CreateCodeMapping(this.CodeMappings[methodDef.MetadataToken.ToInt32()]);
+			
 			ConstructorDeclaration astMethod = new ConstructorDeclaration();
 			astMethod.AddAnnotation(methodDef);
 			astMethod.Modifiers = ConvertModifiers(methodDef);
@@ -710,6 +834,10 @@ namespace ICSharpCode.Decompiler.Ast
 			astMethod.Parameters.AddRange(MakeParameters(methodDef));
 			astMethod.Body = CreateMethodBody(methodDef, astMethod.Parameters);
 			ConvertAttributes(astMethod, methodDef);
+			astMethod.WithAnnotation(methodMapping);
+			if (methodDef.IsStatic && methodDef.DeclaringType.IsBeforeFieldInit && !astMethod.Body.IsNull) {
+				astMethod.Body.InsertChildAfter(null, new Comment(" Note: this type is marked as 'beforefieldinit'."), AstNode.Roles.Comment);
+			}
 			return astMethod;
 		}
 
@@ -739,6 +867,7 @@ namespace ICSharpCode.Decompiler.Ast
 				getterModifiers = ConvertModifiers(propDef.GetMethod);
 				setterModifiers = ConvertModifiers(propDef.SetMethod);
 				astProp.Modifiers = FixUpVisibility(getterModifiers | setterModifiers);
+				try {
 					if (accessor.IsVirtual && !accessor.IsNewSlot && (propDef.GetMethod == null || propDef.SetMethod == null)) {
 						foreach (var basePropDef in TypesHierarchyHelpers.FindBaseProperties(propDef)) {
 							if (basePropDef.GetMethod != null && basePropDef.SetMethod != null) {
@@ -750,38 +879,59 @@ namespace ICSharpCode.Decompiler.Ast
 							}
 						}
 					}
-				if (accessor.IsVirtual ^ !accessor.IsNewSlot) {
-					if (TypesHierarchyHelpers.FindBaseProperties(propDef).Any())
-						astProp.Modifiers |= Modifiers.New;
+				} catch (ReferenceResolvingException) {
+					// TODO: add some kind of notification (a comment?) about possible problems with decompiled code due to unresolved references.
 				}
 			}
 			astProp.Name = CleanName(propDef.Name);
 			astProp.ReturnType = ConvertType(propDef.PropertyType, propDef);
+			
 			if (propDef.GetMethod != null) {
+				// Create mapping - used in debugger
+				CreateCodeMappings(propDef.GetMethod.MetadataToken.ToInt32(), propDef);
+				MemberMapping methodMapping = propDef.GetMethod.CreateCodeMapping(this.CodeMappings[propDef.GetMethod.MetadataToken.ToInt32()], propDef);
+				
 				astProp.Getter = new Accessor();
 				astProp.Getter.Body = CreateMethodBody(propDef.GetMethod);
-				astProp.AddAnnotation(propDef.GetMethod);
+				astProp.Getter.AddAnnotation(propDef.GetMethod);
 				ConvertAttributes(astProp.Getter, propDef.GetMethod);
 				
 				if ((getterModifiers & Modifiers.VisibilityMask) != (astProp.Modifiers & Modifiers.VisibilityMask))
 					astProp.Getter.Modifiers = getterModifiers & Modifiers.VisibilityMask;
+				
+				astProp.Getter.WithAnnotation(methodMapping);
 			}
 			if (propDef.SetMethod != null) {
+				// Create mapping - used in debugger
+				CreateCodeMappings(propDef.SetMethod.MetadataToken.ToInt32(), propDef);
+				MemberMapping methodMapping = propDef.SetMethod.CreateCodeMapping(this.CodeMappings[propDef.SetMethod.MetadataToken.ToInt32()], propDef);
+				
 				astProp.Setter = new Accessor();
 				astProp.Setter.Body = CreateMethodBody(propDef.SetMethod);
 				astProp.Setter.AddAnnotation(propDef.SetMethod);
 				ConvertAttributes(astProp.Setter, propDef.SetMethod);
-				ConvertCustomAttributes(astProp.Setter, propDef.SetMethod.Parameters.Last(), "param");
+				ParameterDefinition lastParam = propDef.SetMethod.Parameters.LastOrDefault();
+				if (lastParam != null) {
+					ConvertCustomAttributes(astProp.Setter, lastParam, "param");
+					if (lastParam.HasMarshalInfo) {
+						astProp.Setter.Attributes.Add(new AttributeSection(ConvertMarshalInfo(lastParam, propDef.Module)) { AttributeTarget = "param" });
+					}
+				}
 				
 				if ((setterModifiers & Modifiers.VisibilityMask) != (astProp.Modifiers & Modifiers.VisibilityMask))
 					astProp.Setter.Modifiers = setterModifiers & Modifiers.VisibilityMask;
+				
+				astProp.Setter.WithAnnotation(methodMapping);
 			}
 			ConvertCustomAttributes(astProp, propDef);
 
+			MemberDeclaration member = astProp;
 			if(propDef.IsIndexer())
-				return ConvertPropertyToIndexer(astProp, propDef);
-			else
-				return astProp;
+				member = ConvertPropertyToIndexer(astProp, propDef);
+			if(!accessor.HasOverrides && !accessor.DeclaringType.IsInterface)
+				if (accessor.IsVirtual == accessor.IsNewSlot)
+					SetNewModifier(member);
+			return member;
 		}
 
 		IndexerDeclaration ConvertPropertyToIndexer(PropertyDeclaration astProp, PropertyDefinition propDef)
@@ -821,17 +971,34 @@ namespace ICSharpCode.Decompiler.Ast
 					astEvent.Modifiers = ConvertModifiers(eventDef.AddMethod);
 				else
 					astEvent.PrivateImplementationType = ConvertType(eventDef.AddMethod.Overrides.First().DeclaringType);
+				
 				if (eventDef.AddMethod != null) {
+					// Create mapping - used in debugger
+					CreateCodeMappings(eventDef.AddMethod.MetadataToken.ToInt32(), eventDef);
+					MemberMapping methodMapping = eventDef.AddMethod.CreateCodeMapping(this.CodeMappings[eventDef.AddMethod.MetadataToken.ToInt32()], eventDef);
+					
 					astEvent.AddAccessor = new Accessor {
 						Body = CreateMethodBody(eventDef.AddMethod)
 					}.WithAnnotation(eventDef.AddMethod);
 					ConvertAttributes(astEvent.AddAccessor, eventDef.AddMethod);
+					
+					astEvent.AddAccessor.WithAnnotation(methodMapping);
 				}
 				if (eventDef.RemoveMethod != null) {
+					// Create mapping - used in debugger
+					CreateCodeMappings(eventDef.RemoveMethod.MetadataToken.ToInt32(), eventDef);
+					MemberMapping methodMapping = eventDef.RemoveMethod.CreateCodeMapping(this.CodeMappings[eventDef.RemoveMethod.MetadataToken.ToInt32()], eventDef);
+					
 					astEvent.RemoveAccessor = new Accessor {
 						Body = CreateMethodBody(eventDef.RemoveMethod)
 					}.WithAnnotation(eventDef.RemoveMethod);
 					ConvertAttributes(astEvent.RemoveAccessor, eventDef.RemoveMethod);
+					
+					astEvent.RemoveAccessor.WithAnnotation(methodMapping);
+				}
+				MethodDefinition accessor = eventDef.AddMethod ?? eventDef.RemoveMethod;
+				if (accessor.IsVirtual == accessor.IsNewSlot) {
+					SetNewModifier(astEvent);
 				}
 				return astEvent;
 			}
@@ -842,13 +1009,15 @@ namespace ICSharpCode.Decompiler.Ast
 		BlockStatement CreateMethodBody(MethodDefinition method, IEnumerable<ParameterDeclaration> parameters = null)
 		{
 			if (DecompileMethodBodies)
-				return AstMethodBodyBuilder.CreateMethodBody(method, context, parameters);
+				return AstMethodBodyBuilder.CreateMethodBody(method, context, parameters, LocalVariables);
 			else
 				return null;
 		}
 
 		FieldDeclaration CreateField(FieldDefinition fieldDef)
 		{
+			this.DecompiledMemberReferences.Add(fieldDef.MetadataToken.ToInt32(), fieldDef);
+			
 			FieldDeclaration astField = new FieldDeclaration();
 			astField.AddAnnotation(fieldDef);
 			VariableInitializer initializer = new VariableInitializer(CleanName(fieldDef.Name));
@@ -856,20 +1025,29 @@ namespace ICSharpCode.Decompiler.Ast
 			astField.ReturnType = ConvertType(fieldDef.FieldType, fieldDef);
 			astField.Modifiers = ConvertModifiers(fieldDef);
 			if (fieldDef.HasConstant) {
-				if (fieldDef.Constant == null) {
-					initializer.Initializer = new NullReferenceExpression();
+				initializer.Initializer = CreateExpressionForConstant(fieldDef.Constant, fieldDef.FieldType, fieldDef.DeclaringType.IsEnum);
+			}
+			ConvertAttributes(astField, fieldDef);
+			SetNewModifier(astField);
+			return astField;
+		}
+		
+		static Expression CreateExpressionForConstant(object constant, TypeReference type, bool isEnumMemberDeclaration = false)
+		{
+			if (constant == null) {
+				if (type.IsValueType && !(type.Namespace == "System" && type.Name == "Nullable`1"))
+					return new DefaultValueExpression(ConvertType(type));
+				else
+					return new NullReferenceExpression();
 			} else {
-					TypeCode c = Type.GetTypeCode(fieldDef.Constant.GetType());
-					if (c >= TypeCode.SByte && c <= TypeCode.UInt64 && !fieldDef.DeclaringType.IsEnum) {
-						initializer.Initializer = MakePrimitive((long)CSharpPrimitiveCast.Cast(TypeCode.Int64, fieldDef.Constant, false), fieldDef.FieldType);
+				TypeCode c = Type.GetTypeCode(constant.GetType());
+				if (c >= TypeCode.SByte && c <= TypeCode.UInt64 && !isEnumMemberDeclaration) {
+					return MakePrimitive((long)CSharpPrimitiveCast.Cast(TypeCode.Int64, constant, false), type);
 				} else {
-						initializer.Initializer = new PrimitiveExpression(fieldDef.Constant);
+					return new PrimitiveExpression(constant);
 				}
 			}
 		}
-			ConvertAttributes(astField, fieldDef);
-			return astField;
-		}
 		
 		public static IEnumerable<ParameterDeclaration> MakeParameters(MethodDefinition method, bool isLambda = false)
 		{
@@ -896,12 +1074,16 @@ namespace ICSharpCode.Decompiler.Ast
 					if (ct != null && ct.PointerRank > 0)
 						ct.PointerRank--;
 				}
+				
 				if (paramDef.HasCustomAttributes) {
 					foreach (CustomAttribute ca in paramDef.CustomAttributes) {
 						if (ca.AttributeType.Name == "ParamArrayAttribute" && ca.AttributeType.Namespace == "System")
 							astParam.ParameterModifier = ParameterModifier.Params;
 					}
 				}
+				if (paramDef.IsOptional) {
+					astParam.DefaultExpression = CreateExpressionForConstant(paramDef.Constant, paramDef.ParameterType);
+				}
 				
 				ConvertCustomAttributes(astParam, paramDef);
 				ModuleDefinition module = ((MethodDefinition)paramDef.Method).Module;
@@ -922,6 +1104,7 @@ namespace ICSharpCode.Decompiler.Ast
 		void ConvertAttributes(AttributedNode attributedNode, TypeDefinition typeDefinition)
 		{
 			ConvertCustomAttributes(attributedNode, typeDefinition);
+			ConvertSecurityAttributes(attributedNode, typeDefinition);
 			
 			// Handle the non-custom attributes:
 			#region SerializableAttribute
@@ -972,11 +1155,12 @@ namespace ICSharpCode.Decompiler.Ast
 		void ConvertAttributes(AttributedNode attributedNode, MethodDefinition methodDefinition)
 		{
 			ConvertCustomAttributes(attributedNode, methodDefinition);
+			ConvertSecurityAttributes(attributedNode, methodDefinition);
 			
 			MethodImplAttributes implAttributes = methodDefinition.ImplAttributes & ~MethodImplAttributes.CodeTypeMask;
 			
 			#region DllImportAttribute
-			if (methodDefinition.HasPInvokeInfo) {
+			if (methodDefinition.HasPInvokeInfo && methodDefinition.PInvokeInfo != null) {
 				PInvokeInfo info = methodDefinition.PInvokeInfo;
 				Ast.Attribute dllImport = CreateNonCustomAttribute(typeof(DllImportAttribute));
 				dllImport.Arguments.Add(new PrimitiveExpression(info.Module.Name));
@@ -1065,9 +1249,14 @@ namespace ICSharpCode.Decompiler.Ast
 			}
 			#endregion
 			
-			ConvertCustomAttributes(attributedNode, methodDefinition.MethodReturnType, "return");
-			if (methodDefinition.MethodReturnType.HasMarshalInfo) {
-				var marshalInfo = ConvertMarshalInfo(methodDefinition.MethodReturnType, methodDefinition.Module);
+			ConvertAttributes(attributedNode, methodDefinition.MethodReturnType, methodDefinition.Module);
+		}
+		
+		void ConvertAttributes(AttributedNode attributedNode, MethodReturnType methodReturnType, ModuleDefinition module)
+		{
+			ConvertCustomAttributes(attributedNode, methodReturnType, "return");
+			if (methodReturnType.HasMarshalInfo) {
+				var marshalInfo = ConvertMarshalInfo(methodReturnType, module);
 				attributedNode.Attributes.Add(new AttributeSection(marshalInfo) { AttributeTarget = "return" });
 			}
 		}
@@ -1103,6 +1292,37 @@ namespace ICSharpCode.Decompiler.Ast
 			Ast.Attribute attr = CreateNonCustomAttribute(typeof(MarshalAsAttribute), module);
 			var unmanagedType = new TypeReference("System.Runtime.InteropServices", "UnmanagedType", module, module.TypeSystem.Corlib);
 			attr.Arguments.Add(MakePrimitive((int)marshalInfo.NativeType, unmanagedType));
+			
+			FixedArrayMarshalInfo fami = marshalInfo as FixedArrayMarshalInfo;
+			if (fami != null) {
+				attr.AddNamedArgument("SizeConst", new PrimitiveExpression(fami.Size));
+				if (fami.ElementType != NativeType.None)
+					attr.AddNamedArgument("ArraySubType", MakePrimitive((int)fami.ElementType, unmanagedType));
+			}
+			SafeArrayMarshalInfo sami = marshalInfo as SafeArrayMarshalInfo;
+			if (sami != null && sami.ElementType != VariantType.None) {
+				var varEnum = new TypeReference("System.Runtime.InteropServices", "VarEnum", module, module.TypeSystem.Corlib);
+				attr.AddNamedArgument("SafeArraySubType", MakePrimitive((int)sami.ElementType, varEnum));
+			}
+			ArrayMarshalInfo ami = marshalInfo as ArrayMarshalInfo;
+			if (ami != null) {
+				if (ami.ElementType != NativeType.Max)
+					attr.AddNamedArgument("ArraySubType", MakePrimitive((int)ami.ElementType, unmanagedType));
+				if (ami.Size >= 0)
+					attr.AddNamedArgument("SizeConst", new PrimitiveExpression(ami.Size));
+				if (ami.SizeParameterMultiplier != 0 && ami.SizeParameterIndex >= 0)
+					attr.AddNamedArgument("SizeParamIndex", new PrimitiveExpression(ami.SizeParameterIndex));
+			}
+			CustomMarshalInfo cmi = marshalInfo as CustomMarshalInfo;
+			if (cmi != null) {
+				attr.AddNamedArgument("MarshalType", new PrimitiveExpression(cmi.ManagedType.FullName));
+				if (!string.IsNullOrEmpty(cmi.Cookie))
+					attr.AddNamedArgument("MarshalCookie", new PrimitiveExpression(cmi.Cookie));
+			}
+			FixedSysStringMarshalInfo fssmi = marshalInfo as FixedSysStringMarshalInfo;
+			if (fssmi != null) {
+				attr.AddNamedArgument("SizeConst", new PrimitiveExpression(fssmi.Size));
+			}
 			return attr;
 		}
 		#endregion
@@ -1192,6 +1412,65 @@ namespace ICSharpCode.Decompiler.Ast
 			}
 		}
 		
+		static void ConvertSecurityAttributes(AstNode attributedNode, ISecurityDeclarationProvider secDeclProvider, string attributeTarget = null)
+		{
+			if (!secDeclProvider.HasSecurityDeclarations)
+				return;
+			var attributes = new List<ICSharpCode.NRefactory.CSharp.Attribute>();
+			foreach (var secDecl in secDeclProvider.SecurityDeclarations) {
+				foreach (var secAttribute in secDecl.SecurityAttributes) {
+					var attribute = new ICSharpCode.NRefactory.CSharp.Attribute();
+					attribute.AddAnnotation(secAttribute);
+					attribute.Type = ConvertType(secAttribute.AttributeType);
+					attributes.Add(attribute);
+					
+					SimpleType st = attribute.Type as SimpleType;
+					if (st != null && st.Identifier.EndsWith("Attribute", StringComparison.Ordinal)) {
+						st.Identifier = st.Identifier.Substring(0, st.Identifier.Length - "Attribute".Length);
+					}
+					
+					var module = secAttribute.AttributeType.Module;
+					var securityActionType = new TypeReference("System.Security.Permissions", "SecurityAction", module, module.TypeSystem.Corlib);
+					attribute.Arguments.Add(MakePrimitive((int)secDecl.Action, securityActionType));
+					
+					if (secAttribute.HasProperties) {
+						TypeDefinition resolvedAttributeType = secAttribute.AttributeType.Resolve();
+						foreach (var propertyNamedArg in secAttribute.Properties) {
+							var propertyReference = resolvedAttributeType != null ? resolvedAttributeType.Properties.FirstOrDefault(pr => pr.Name == propertyNamedArg.Name) : null;
+							var propertyName = new IdentifierExpression(propertyNamedArg.Name).WithAnnotation(propertyReference);
+							var argumentValue = ConvertArgumentValue(propertyNamedArg.Argument);
+							attribute.Arguments.Add(new AssignmentExpression(propertyName, argumentValue));
+						}
+					}
+
+					if (secAttribute.HasFields) {
+						TypeDefinition resolvedAttributeType = secAttribute.AttributeType.Resolve();
+						foreach (var fieldNamedArg in secAttribute.Fields) {
+							var fieldReference = resolvedAttributeType != null ? resolvedAttributeType.Fields.FirstOrDefault(f => f.Name == fieldNamedArg.Name) : null;
+							var fieldName = new IdentifierExpression(fieldNamedArg.Name).WithAnnotation(fieldReference);
+							var argumentValue = ConvertArgumentValue(fieldNamedArg.Argument);
+							attribute.Arguments.Add(new AssignmentExpression(fieldName, argumentValue));
+						}
+					}
+				}
+			}
+			if (attributeTarget == "module" || attributeTarget == "assembly") {
+				// use separate section for each attribute
+				foreach (var attribute in attributes) {
+					var section = new AttributeSection();
+					section.AttributeTarget = attributeTarget;
+					section.Attributes.Add(attribute);
+					attributedNode.AddChild(section, AttributedNode.AttributeRole);
+				}
+			} else if (attributes.Count > 0) {
+				// use single section for all attributes
+				var section = new AttributeSection();
+				section.AttributeTarget = attributeTarget;
+				section.Attributes.AddRange(attributes);
+				attributedNode.AddChild(section, AttributedNode.AttributeRole);
+			}
+		}
+		
 		private static Expression ConvertArgumentValue(CustomAttributeArgument argument)
 		{
 			if (argument.Value is CustomAttributeArgument[]) {
@@ -1212,9 +1491,7 @@ namespace ICSharpCode.Decompiler.Ast
 			if (type != null && type.IsEnum) {
 				return MakePrimitive(Convert.ToInt64(argument.Value), type);
 			} else if (argument.Value is TypeReference) {
-				return new TypeOfExpression() {
-					Type = ConvertType((TypeReference)argument.Value),
-				};
+				return CreateTypeOfExpression((TypeReference)argument.Value);
 			} else {
 				return new PrimitiveExpression(argument.Value);
 			}
@@ -1233,13 +1510,13 @@ namespace ICSharpCode.Decompiler.Ast
 			{ // cannot rely on type.IsValueType, it's not set for typerefs (but is set for typespecs)
 				TypeDefinition enumDefinition = type.Resolve();
 				if (enumDefinition != null && enumDefinition.IsEnum) {
+					TypeCode enumBaseTypeCode = TypeCode.Int32;
 					foreach (FieldDefinition field in enumDefinition.Fields) {
 						if (field.IsStatic && object.Equals(CSharpPrimitiveCast.Cast(TypeCode.Int64, field.Constant, false), val))
-							return ConvertType(enumDefinition).Member(field.Name).WithAnnotation(field);
+							return ConvertType(type).Member(field.Name).WithAnnotation(field);
 						else if (!field.IsStatic && field.IsRuntimeSpecialName)
-							type = field.FieldType; // use primitive type of the enum
+							enumBaseTypeCode = TypeAnalysis.GetTypeCode(field.FieldType); // use primitive type of the enum
 					}
-					TypeCode enumBaseTypeCode = TypeAnalysis.GetTypeCode(type);
 					if (IsFlagsEnum(enumDefinition)) {
 						long enumValue = val;
 						Expression expr = null;
@@ -1266,7 +1543,7 @@ namespace ICSharpCode.Decompiler.Ast
 								continue;	// skip None enum value
 
 							if ((fieldValue & enumValue) == fieldValue) {
-								var fieldExpression = ConvertType(enumDefinition).Member(field.Name).WithAnnotation(field);
+								var fieldExpression = ConvertType(type).Member(field.Name).WithAnnotation(field);
 								if (expr == null)
 									expr = fieldExpression;
 								else
@@ -1275,7 +1552,7 @@ namespace ICSharpCode.Decompiler.Ast
 								enumValue &= ~fieldValue;
 							}
 							if ((fieldValue & negatedEnumValue) == fieldValue) {
-								var fieldExpression = ConvertType(enumDefinition).Member(field.Name).WithAnnotation(field);
+								var fieldExpression = ConvertType(type).Member(field.Name).WithAnnotation(field);
 								if (negatedExpr == null)
 									negatedExpr = fieldExpression;
 								else
@@ -1293,7 +1570,7 @@ namespace ICSharpCode.Decompiler.Ast
 							return new UnaryOperatorExpression(UnaryOperatorType.BitNot, negatedExpr);
 						}
 					}
-					return new Ast.PrimitiveExpression(CSharpPrimitiveCast.Cast(enumBaseTypeCode, val, false)).CastTo(ConvertType(enumDefinition));
+					return new Ast.PrimitiveExpression(CSharpPrimitiveCast.Cast(enumBaseTypeCode, val, false)).CastTo(ConvertType(type));
 				}
 			}
 			TypeCode code = TypeAnalysis.GetTypeCode(type);
@@ -1309,5 +1586,88 @@ namespace ICSharpCode.Decompiler.Ast
 
 			return type.CustomAttributes.Any(attr => attr.AttributeType.FullName == "System.FlagsAttribute");
 		}
+
+		/// <summary>
+		/// Sets new modifier if the member hides some other member from a base type.
+		/// </summary>
+		/// <param name="member">The node of the member which new modifier state should be determined.</param>
+		static void SetNewModifier(AttributedNode member)
+		{
+			try {
+				bool addNewModifier = false;
+				if (member is IndexerDeclaration) {
+					var propertyDef = member.Annotation<PropertyDefinition>();
+					var baseProperties =
+						TypesHierarchyHelpers.FindBaseProperties(propertyDef);
+					addNewModifier = baseProperties.Any();
+				} else
+					addNewModifier = HidesBaseMember(member);
+
+				if (addNewModifier)
+					member.Modifiers |= Modifiers.New;
+			}
+			catch (ReferenceResolvingException) {
+				// TODO: add some kind of notification (a comment?) about possible problems with decompiled code due to unresolved references.
+			}
+		}
+
+		private static bool HidesBaseMember(AttributedNode member)
+		{
+			var memberDefinition = member.Annotation<IMemberDefinition>();
+			bool addNewModifier = false;
+			var methodDefinition = memberDefinition as MethodDefinition;
+			if (methodDefinition != null) {
+				addNewModifier = HidesByName(memberDefinition, includeBaseMethods: false);
+				if (!addNewModifier)
+					addNewModifier = TypesHierarchyHelpers.FindBaseMethods(methodDefinition).Any();
+			} else
+				addNewModifier = HidesByName(memberDefinition, includeBaseMethods: true);
+			return addNewModifier;
+		}
+
+		/// <summary>
+		/// Determines whether any base class member has the same name as the given member.
+		/// </summary>
+		/// <param name="member">The derived type's member.</param>
+		/// <param name="includeBaseMethods">true if names of methods declared in base types should also be checked.</param>
+		/// <returns>true if any base member has the same name as given member, otherwise false.</returns>
+		static bool HidesByName(IMemberDefinition member, bool includeBaseMethods)
+		{
+			Debug.Assert(!(member is PropertyDefinition) || !((PropertyDefinition)member).IsIndexer());
+
+			if (member.DeclaringType.BaseType != null) {
+				var baseTypeRef = member.DeclaringType.BaseType;
+				while (baseTypeRef != null) {
+					var baseType = baseTypeRef.ResolveOrThrow();
+					if (baseType.HasProperties && AnyIsHiddenBy(baseType.Properties, member, m => !m.IsIndexer()))
+						return true;
+					if (baseType.HasEvents && AnyIsHiddenBy(baseType.Events, member))
+						return true;
+					if (baseType.HasFields && AnyIsHiddenBy(baseType.Fields, member))
+						return true;
+					if (includeBaseMethods && baseType.HasMethods
+					    && AnyIsHiddenBy(baseType.Methods, member, m => !m.IsSpecialName))
+						return true;
+					if (baseType.HasNestedTypes && AnyIsHiddenBy(baseType.NestedTypes, member))
+						return true;
+					baseTypeRef = baseType.BaseType;
+				}
+			}
+			return false;
+		}
+
+		static bool AnyIsHiddenBy<T>(IEnumerable<T> members, IMemberDefinition derived, Predicate<T> condition = null)
+			where T : IMemberDefinition
+		{
+			return members.Any(m => m.Name == derived.Name
+			                   && (condition == null || condition(m))
+			                   && TypesHierarchyHelpers.IsVisibleFromDerived(m, derived.DeclaringType));
+		}
+		
+		/// <summary>
+		/// Gets the local variables for the current decompiled type, method, etc.
+		/// <remarks>The key is the metadata token.</remarks>
+		/// </summary>
+		public ConcurrentDictionary<int, IEnumerable<ILVariable>> LocalVariables { get; private set; }
 	}
 }

src/Libraries/ICSharpCode.Decompiler/Ast/AstMethodBodyBuilder.cs

@@ -1,3 +1,21 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
@@ -32,9 +50,16 @@ namespace ICSharpCode.Decompiler.Ast
 		/// <param name="context">Decompilation context.</param>
 		/// <param name="parameters">Parameter declarations of the method being decompiled.
 		/// These are used to update the parameter names when the decompiler generates names for the parameters.</param>
+		/// <param name="localVariables">Local variables storage that will be filled/updated with the local variables.</param>
 		/// <returns>Block for the method body</returns>
-		public static BlockStatement CreateMethodBody(MethodDefinition methodDef, DecompilerContext context, IEnumerable<ParameterDeclaration> parameters = null)
+		public static BlockStatement CreateMethodBody(MethodDefinition methodDef,
+		                                              DecompilerContext context,
+		                                              IEnumerable<ParameterDeclaration> parameters = null,
+		                                              ConcurrentDictionary<int, IEnumerable<ILVariable>> localVariables = null)
 		{
+			if (localVariables == null)
+				localVariables = new ConcurrentDictionary<int, IEnumerable<ILVariable>>();
+			
 			MethodDefinition oldCurrentMethod = context.CurrentMethod;
 			Debug.Assert(oldCurrentMethod == null || oldCurrentMethod == methodDef);
 			context.CurrentMethod = methodDef;
@@ -44,10 +69,10 @@ namespace ICSharpCode.Decompiler.Ast
 				builder.context = context;
 				builder.typeSystem = methodDef.Module.TypeSystem;
 				if (Debugger.IsAttached) {
-					return builder.CreateMethodBody(parameters);
+					return builder.CreateMethodBody(parameters, localVariables);
 				} else {
 					try {
-						return builder.CreateMethodBody(parameters);
+						return builder.CreateMethodBody(parameters, localVariables);
 					} catch (OperationCanceledException) {
 						throw;
 					} catch (Exception ex) {
@@ -59,10 +84,14 @@ namespace ICSharpCode.Decompiler.Ast
 			}
 		}
 		
-		public BlockStatement CreateMethodBody(IEnumerable<ParameterDeclaration> parameters)
+		public BlockStatement CreateMethodBody(IEnumerable<ParameterDeclaration> parameters,
+		                                       ConcurrentDictionary<int, IEnumerable<ILVariable>> localVariables)
 		{
 			if (methodDef.Body == null) return null;
 			
+			if (localVariables == null)
+				throw new ArgumentException("localVariables must be instantiated");
+			
 			context.CancellationToken.ThrowIfCancellationRequested();
 			ILBlock ilMethod = new ILBlock();
 			ILAstBuilder astBuilder = new ILAstBuilder();
@@ -102,6 +131,10 @@ namespace ICSharpCode.Decompiler.Ast
 				astBlock.Statements.InsertBefore(insertionPoint, newVarDecl);
 			}
 			
+			// store the variables - used for debugger
+			int token = methodDef.MetadataToken.ToInt32();
+			localVariables.AddOrUpdate(token, allVariables, (key, oldValue) => allVariables);
+			
 			return astBlock;
 		}
 		
@@ -215,10 +248,20 @@ namespace ICSharpCode.Decompiler.Ast
 		{
 			AstNode node = TransformByteCode(expr);
 			Expression astExpr = node as Expression;
+			
+			// get IL ranges - used in debugger
+			List<ILRange> ilRanges = ILRange.OrderAndJoint(expr.GetSelfAndChildrenRecursive<ILExpression>().SelectMany(e => e.ILRanges));
+			AstNode result;
+			
 			if (astExpr != null)
-				return Convert(astExpr, expr.InferredType, expr.ExpectedType);
+				result = Convert(astExpr, expr.InferredType, expr.ExpectedType);
 			else
-				return node;
+				result = node;
+			
+			if (result != null)
+				return result.WithAnnotation(ilRanges);
+			
+			return result;
 		}
 		
 		AstNode TransformByteCode(ILExpression byteCode)
@@ -306,8 +349,7 @@ namespace ICSharpCode.Decompiler.Ast
 					}
 					#endregion
 					#region Arrays
-				case ILCode.Newarr:
-					case ILCode.InitArray: {
+					case ILCode.Newarr: {
 						var ace = new Ast.ArrayCreateExpression();
 						ace.Type = operandAsTypeRef;
 						ComposedType ct = operandAsTypeRef as ComposedType;
@@ -323,6 +365,38 @@ namespace ICSharpCode.Decompiler.Ast
 						}
 						return ace;
 					}
+					case ILCode.InitArray: {
+						var ace = new Ast.ArrayCreateExpression();
+						ace.Type = operandAsTypeRef;
+						ComposedType ct = operandAsTypeRef as ComposedType;
+						var arrayType = (ArrayType) operand;
+						if (ct != null)
+						{
+							// change "new (int[,])[10] to new int[10][,]"
+							ct.ArraySpecifiers.MoveTo(ace.AdditionalArraySpecifiers);
+							ace.Initializer = new ArrayInitializerExpression();
+							var first = ace.AdditionalArraySpecifiers.First();
+							first.Remove();
+							ace.Arguments.AddRange(Enumerable.Repeat(0, first.Dimensions).Select(i => new EmptyExpression()));
+						}
+						var newArgs = new List<Expression>();
+						foreach (var arrayDimension in arrayType.Dimensions.Skip(1).Reverse())
+						{
+							int length = (int)arrayDimension.UpperBound - (int)arrayDimension.LowerBound;
+							for (int j = 0; j < args.Count; j += length)
+							{
+								var child = new ArrayInitializerExpression();
+								child.Elements.AddRange(args.GetRange(j, length));
+								newArgs.Add(child);
+							}
+							var temp = args;
+							args = newArgs;
+							newArgs = temp;
+							newArgs.Clear();
+						}
+						ace.Initializer.Elements.AddRange(args);
+						return ace;
+					}
 				case ILCode.Ldlen: return arg1.Member("Length");
 				case ILCode.Ldelem_I:
 				case ILCode.Ldelem_I1:
@@ -460,9 +534,12 @@ namespace ICSharpCode.Decompiler.Ast
 						return arg1;
 					else
 						return arg1.CastTo(operandAsTypeRef);
-					case ILCode.Isinst:         return arg1.CastAs(operandAsTypeRef);
-					case ILCode.Box:            return arg1;
-					case ILCode.Unbox:          return InlineAssembly(byteCode, args);
+				case ILCode.Isinst:
+					return arg1.CastAs(operandAsTypeRef);
+				case ILCode.Box:
+					return arg1;
+				case ILCode.Unbox:
+					return MakeRef(arg1.CastTo(operandAsTypeRef));
 					#endregion
 					#region Indirect
 				case ILCode.Ldind_Ref:
@@ -514,11 +591,7 @@ namespace ICSharpCode.Decompiler.Ast
 					case ILCode.Endfilter:   return InlineAssembly(byteCode, args);
 					case ILCode.Endfinally:  return null;
 					case ILCode.Initblk:     return InlineAssembly(byteCode, args);
-				case ILCode.Initobj:
-					if (args[0] is DirectionExpression)
-						return new AssignmentExpression(((DirectionExpression)args[0]).Expression.Detach(), MakeDefaultValue((TypeReference)operand));
-					else
-						return InlineAssembly(byteCode, args);
+					case ILCode.Initobj:      return InlineAssembly(byteCode, args);
 				case ILCode.DefaultValue:
 					return MakeDefaultValue((TypeReference)operand);
 					case ILCode.Jmp: return InlineAssembly(byteCode, args);
@@ -577,7 +650,7 @@ namespace ICSharpCode.Decompiler.Ast
 					case ILCode.Ldstr:  return new Ast.PrimitiveExpression(operand);
 				case ILCode.Ldtoken:
 					if (operand is Cecil.TypeReference) {
-						return new Ast.TypeOfExpression { Type = operandAsTypeRef }.Member("TypeHandle");
+						return AstBuilder.CreateTypeOfExpression((TypeReference)operand).Member("TypeHandle");
 					} else {
 						return InlineAssembly(byteCode, args);
 					}
@@ -678,24 +751,81 @@ namespace ICSharpCode.Decompiler.Ast
 					return new Ast.YieldBreakStatement();
 				case ILCode.YieldReturn:
 					return new Ast.YieldStatement { Expression = arg1 };
-					case ILCode.InitCollection: {
-						ObjectCreateExpression oce = (ObjectCreateExpression)arg1;
-						oce.Initializer = new ArrayInitializerExpression();
+				case ILCode.InitObject:
+				case ILCode.InitCollection:
+					{
+						ArrayInitializerExpression initializer = new ArrayInitializerExpression();
 						for (int i = 1; i < args.Count; i++) {
-							ArrayInitializerExpression aie = args[i] as ArrayInitializerExpression;
-							if (aie != null && aie.Elements.Count == 1)
-								oce.Initializer.Elements.Add(aie.Elements.Single().Detach());
-							else
-								oce.Initializer.Elements.Add(args[i]);
+							Match m = objectInitializerPattern.Match(args[i]);
+							if (m.Success) {
+								MemberReferenceExpression mre = m.Get<MemberReferenceExpression>("left").Single();
+								initializer.Elements.Add(
+									new NamedArgumentExpression {
+										Identifier = mre.MemberName,
+										Expression = m.Get<Expression>("right").Single().Detach()
+									}.CopyAnnotationsFrom(mre));
+							} else {
+								m = collectionInitializerPattern.Match(args[i]);
+								if (m.Success) {
+									if (m.Get("arg").Count() == 1) {
+										initializer.Elements.Add(m.Get<Expression>("arg").Single().Detach());
+									} else {
+										ArrayInitializerExpression argList = new ArrayInitializerExpression();
+										foreach (var expr in m.Get<Expression>("arg")) {
+											argList.Elements.Add(expr.Detach());
+										}
+										initializer.Elements.Add(argList);
+									}
+								} else {
+									initializer.Elements.Add(args[i]);
+								}
+							}
 						}
+						ObjectCreateExpression oce = arg1 as ObjectCreateExpression;
+						DefaultValueExpression dve = arg1 as DefaultValueExpression;
+						if (oce != null) {
+							oce.Initializer = initializer;
 							return oce;
+						} else if (dve != null) {
+							oce = new ObjectCreateExpression(dve.Type.Detach());
+							oce.CopyAnnotationsFrom(dve);
+							oce.Initializer = initializer;
+							return oce;
+						} else {
+							return new AssignmentExpression(arg1, initializer);
 						}
-					case ILCode.InitCollectionAddMethod: {
-						var collectionInit = new ArrayInitializerExpression();
-						collectionInit.Elements.AddRange(args);
-						return collectionInit;
 					}
-					default: throw new Exception("Unknown OpCode: " + byteCode.Code);
+				case ILCode.InitializedObject:
+					return new InitializedObjectExpression();
+				case ILCode.AddressOf:
+					return MakeRef(arg1);
+				default:
+					throw new Exception("Unknown OpCode: " + byteCode.Code);
+			}
+		}
+		
+		static readonly AstNode objectInitializerPattern = new AssignmentExpression(
+			new MemberReferenceExpression {
+				Target = new InitializedObjectExpression()
+			}.WithName("left"),
+			new AnyNode("right")
+		);
+		
+		static readonly AstNode collectionInitializerPattern = new InvocationExpression {
+			Target = new MemberReferenceExpression {
+				Target = new InitializedObjectExpression(),
+				MemberName = "Add"
+			},
+			Arguments = { new Repeat(new AnyNode("arg")) }
+		};
+		
+		sealed class InitializedObjectExpression : IdentifierExpression
+		{
+			public InitializedObjectExpression() : base("__initialized_object__") {}
+			
+			protected override bool DoMatch(AstNode other, Match match)
+			{
+				return other is InitializedObjectExpression;
 			}
 		}
 		
@@ -810,8 +940,6 @@ namespace ICSharpCode.Decompiler.Ast
 			
 			if (cecilMethod.Name == "Get" && cecilMethod.DeclaringType is ArrayType && methodArgs.Count > 1) {
 				return target.Indexer(methodArgs);
-			} else if (cecilMethod.Name == "Address" && cecilMethod.DeclaringType is ArrayType && methodArgs.Count > 1) {
-				return MakeRef(target.Indexer(methodArgs));
 			} else if (cecilMethod.Name == "Set" && cecilMethod.DeclaringType is ArrayType && methodArgs.Count > 2) {
 				return new AssignmentExpression(target.Indexer(methodArgs.GetRange(0, methodArgs.Count - 1)), methodArgs.Last());
 			}

src/Libraries/ICSharpCode.Decompiler/Ast/CecilTypeResolveContext.cs

@@ -1,9 +1,25 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Linq;
+using ICSharpCode.NRefactory;
 using ICSharpCode.NRefactory.TypeSystem;
 using Mono.Cecil;
 
@@ -12,7 +28,7 @@ namespace ICSharpCode.Decompiler.Ast
 	/// <summary>
 	/// ITypeResolveContext implementation that lazily loads types from Cecil.
 	/// </summary>
-	public class CecilTypeResolveContext : ISynchronizedTypeResolveContext, IProjectContent
+	public class CecilTypeResolveContext : AbstractAnnotatable, ISynchronizedTypeResolveContext, IProjectContent
 	{
 		readonly ModuleDefinition module;
 		readonly string[] namespaces;
@@ -76,7 +92,7 @@ namespace ICSharpCode.Decompiler.Ast
 		
 		public IList<IAttribute> AssemblyAttributes { get; private set; }
 		
-		public ITypeDefinition GetClass(string nameSpace, string name, int typeParameterCount, StringComparer nameComparer)
+		public ITypeDefinition GetTypeDefinition(string nameSpace, string name, int typeParameterCount, StringComparer nameComparer)
 		{
 			if (typeParameterCount > 0)
 				name = name + "`" + typeParameterCount.ToString();
@@ -98,14 +114,14 @@ namespace ICSharpCode.Decompiler.Ast
 			return null;
 		}
 		
-		public IEnumerable<ITypeDefinition> GetClasses()
+		public IEnumerable<ITypeDefinition> GetTypes()
 		{
 			foreach (TypeDefinition cecilType in module.Types) {
 				yield return GetClass(cecilType);
 			}
 		}
 		
-		public IEnumerable<ITypeDefinition> GetClasses(string nameSpace, StringComparer nameComparer)
+		public IEnumerable<ITypeDefinition> GetTypes(string nameSpace, StringComparer nameComparer)
 		{
 			foreach (TypeDefinition cecilType in module.Types) {
 				if (nameComparer.Equals(nameSpace, cecilType.Namespace))
@@ -144,5 +160,14 @@ namespace ICSharpCode.Decompiler.Ast
 		{
 			// exit from Synchronize() block
 		}
+		
+		IEnumerable<IParsedFile> IProjectContent.Files {
+			get { return new IParsedFile[0]; }
+		}
+		
+		IParsedFile IProjectContent.GetFile(string fileName)
+		{
+			return null;
+		}
 	}
 }

src/Libraries/ICSharpCode.Decompiler/Ast/CommentStatement.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Linq;

src/Libraries/ICSharpCode.Decompiler/Ast/DecompilerContext.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;

src/Libraries/ICSharpCode.Decompiler/Ast/NRefactoryExtensions.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using ICSharpCode.NRefactory.CSharp;

src/Libraries/ICSharpCode.Decompiler/Ast/NameVariables.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -42,8 +57,23 @@ namespace ICSharpCode.Decompiler.Ast
 			foreach (var p in parameters)
 				nv.AddExistingName(p.Name);
 			foreach (var v in variables) {
-				if (v.IsGenerated)
+				if (v.IsGenerated) {
+					// don't introduce names for variables generated by ILSpy - keep "expr"/"arg"
 					nv.AddExistingName(v.Name);
+				} else if (v.OriginalVariable != null && context.Settings.UseDebugSymbols) {
+					string varName = v.OriginalVariable.Name;
+					if (string.IsNullOrEmpty(varName) || varName.StartsWith("V_", StringComparison.Ordinal) || !IsValidName(varName))
+					{
+						// don't use the name from the debug symbols if it looks like a generated name
+						v.Name = null;
+					} else {
+						// use the name from the debug symbols
+						// (but ensure we don't use the same name for two variables)
+						v.Name = nv.GetAlternativeName(varName);
+					}
+				} else {
+					v.Name = null;
+				}
 			}
 			// Now generate names:
 			foreach (ILVariable p in parameters) {
@@ -51,10 +81,22 @@ namespace ICSharpCode.Decompiler.Ast
 					p.Name = nv.GenerateNameForVariable(p, methodBody);
 			}
 			foreach (ILVariable varDef in variables) {
-				if (!varDef.IsGenerated) {
+				if (string.IsNullOrEmpty(varDef.Name))
 					varDef.Name = nv.GenerateNameForVariable(varDef, methodBody);
 			}
 		}
+		
+		static bool IsValidName(string varName)
+		{
+			if (string.IsNullOrEmpty(varName))
+				return false;
+			if (!(char.IsLetter(varName[0]) || varName[0] == '_'))
+				return false;
+			for (int i = 1; i < varName.Length; i++) {
+				if (!(char.IsLetterOrDigit(varName[i]) || varName[i] == '_'))
+					return false;
+			}
+			return true;
 		}
 		
 		DecompilerContext context;
@@ -107,10 +149,10 @@ namespace ICSharpCode.Decompiler.Ast
 			string nameWithoutDigits = SplitName(oldVariableName, out number);
 			
 			if (!typeNames.ContainsKey(nameWithoutDigits)) {
-				typeNames.Add(nameWithoutDigits, 0);
+				typeNames.Add(nameWithoutDigits, number - 1);
 			}
 			int count = ++typeNames[nameWithoutDigits];
-			if (count > 1) {
+			if (count != 1) {
 				return nameWithoutDigits + count.ToString();
 			} else {
 				return nameWithoutDigits;
@@ -255,6 +297,8 @@ namespace ICSharpCode.Decompiler.Ast
 		
 		string GetNameByType(TypeReference type)
 		{
+			type = TypeAnalysis.UnpackModifiers(type);
+			
 			GenericInstanceType git = type as GenericInstanceType;
 			if (git != null && git.ElementType.FullName == "System.Nullable`1" && git.GenericArguments.Count == 1) {
 				type = ((GenericInstanceType)type).GenericArguments[0];
@@ -265,6 +309,8 @@ namespace ICSharpCode.Decompiler.Ast
 				name = "array";
 			} else if (type.IsPointer || type.IsByReference) {
 				name = "ptr";
+			} else if (type.Name.EndsWith("Exception", StringComparison.Ordinal)) {
+				name = "ex";
 			} else if (!typeNameToVariableNameDict.TryGetValue(type.FullName, out name)) {
 				name = type.Name;
 				// remove the 'I' for interfaces

src/Libraries/ICSharpCode.Decompiler/Ast/TextOutputFormatter.cs

@@ -1,10 +1,27 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Linq;
+
 using ICSharpCode.Decompiler;
+using ICSharpCode.Decompiler.ILAst;
 using ICSharpCode.NRefactory.CSharp;
 using Mono.Cecil;
 
@@ -15,6 +32,7 @@ namespace ICSharpCode.Decompiler.Ast
 		readonly ITextOutput output;
 		readonly Stack<AstNode> nodeStack = new Stack<AstNode>();
 		int braceLevelWithinType = -1;
+		bool inDocumentationComment = false;
 		
 		public TextOutputFormatter(ITextOutput output)
 		{
@@ -113,14 +131,56 @@ namespace ICSharpCode.Decompiler.Ast
 					output.Write("*/");
 					break;
 				case CommentType.Documentation:
+					if (!inDocumentationComment)
+						output.MarkFoldStart("///" + content, true);
 					output.Write("///");
-					output.WriteLine(content);
+					output.Write(content);
+					inDocumentationComment = true;
+					bool isLastLine = !(nodeStack.Peek().NextSibling is Comment);
+					if (isLastLine) {
+						inDocumentationComment = false;
+						output.MarkFoldEnd();
+					}
+					output.WriteLine();
 					break;
 			}
 		}
 		
 		public void StartNode(AstNode node)
 		{
+			// code mappings
+			var ranges = node.Annotation<List<ILRange>>();
+			if (ranges != null && ranges.Count > 0) {
+				// find the ancestor that has method mapping as annotation
+				if (node.Parent != null)
+				{
+					var n = node.Ancestors.FirstOrDefault(a => a.Annotation<MemberMapping>() != null);
+					if (n != null) {
+						MemberMapping mapping = n.Annotation<MemberMapping>();
+
+						// add all ranges
+						foreach (var range in ranges) {
+							mapping.MemberCodeMappings.Add(new SourceCodeMapping {
+							                               	ILInstructionOffset = range,
+							                               	SourceCodeLine = output.CurrentLine,
+							                               	MemberMapping = mapping
+							                               });
+						}
+					}
+				}
+			}
+			
+			// definitions of types and their members
+			Predicate<AstNode> predicate = n => n is AttributedNode;
+			
+			if (predicate(node)) {
+				var n = node as AttributedNode;
+				int c = 0;
+				if (n != null)
+					c = n.Attributes.Count;
+				node.AddAnnotation(Tuple.Create(output.CurrentLine + c, output.CurrentColumn));
+			}
+			
 			nodeStack.Push(node);
 		}
 		

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/AddCheckedBlocks.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Linq;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/CombineQueryExpressions.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Linq;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Diagnostics;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/ConvertConstructorCallIntoInitializer.cs

@@ -1,7 +1,23 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
 using System.Linq;
 using ICSharpCode.NRefactory.CSharp;
 using ICSharpCode.NRefactory.PatternMatching;
@@ -54,9 +70,29 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		
 		public override object VisitTypeDeclaration(TypeDeclaration typeDeclaration, object data)
 		{
-			var instanceCtors = typeDeclaration.Members.OfType<ConstructorDeclaration>().Where(c => (c.Modifiers & Modifiers.Static) == 0).ToArray();
+			// Handle initializers on instance fields
+			HandleInstanceFieldInitializers(typeDeclaration.Members);
+			
+			// Now convert base constructor calls to initializers:
+			base.VisitTypeDeclaration(typeDeclaration, data);
+			
+			// Remove single empty constructor:
+			RemoveSingleEmptyConstructor(typeDeclaration);
+			
+			// Handle initializers on static fields:
+			HandleStaticFieldInitializers(typeDeclaration.Members);
+			return null;
+		}
+		
+		void HandleInstanceFieldInitializers(IEnumerable<AstNode> members)
+		{
+			var instanceCtors = members.OfType<ConstructorDeclaration>().Where(c => (c.Modifiers & Modifiers.Static) == 0).ToArray();
 			var instanceCtorsNotChainingWithThis = instanceCtors.Where(ctor => !thisCallPattern.IsMatch(ctor.Body.Statements.FirstOrDefault())).ToArray();
-			if (instanceCtorsNotChainingWithThis.Length > 0 && typeDeclaration.ClassType == NRefactory.TypeSystem.ClassType.Class) {
+			if (instanceCtorsNotChainingWithThis.Length > 0) {
+				MethodDefinition ctorMethodDef = instanceCtorsNotChainingWithThis[0].Annotation<MethodDefinition>();
+				if (ctorMethodDef != null && ctorMethodDef.DeclaringType.IsValueType)
+					return;
+				
 				// Recognize field initializers:
 				// Convert first statement in all ctors (if all ctors have the same statement) into a field initializer.
 				bool allSame;
@@ -68,7 +104,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 					FieldDefinition fieldDef = m.Get<AstNode>("fieldAccess").Single().Annotation<FieldReference>().ResolveWithinSameModule();
 					if (fieldDef == null)
 						break;
-					AttributedNode fieldOrEventDecl = typeDeclaration.Members.FirstOrDefault(f => f.Annotation<FieldDefinition>() == fieldDef);
+					AstNode fieldOrEventDecl = members.FirstOrDefault(f => f.Annotation<FieldDefinition>() == fieldDef);
 					if (fieldOrEventDecl == null)
 						break;
 					
@@ -84,11 +120,11 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 					}
 				} while (allSame);
 			}
+		}
 		
-			// Now convert base constructor calls to initializers:
-			base.VisitTypeDeclaration(typeDeclaration, data);
-			
-			// Remove single empty constructor:
+		void RemoveSingleEmptyConstructor(TypeDeclaration typeDeclaration)
+		{
+			var instanceCtors = typeDeclaration.Members.OfType<ConstructorDeclaration>().Where(c => (c.Modifiers & Modifiers.Static) == 0).ToArray();
 			if (instanceCtors.Length == 1) {
 				ConstructorDeclaration emptyCtor = new ConstructorDeclaration();
 				emptyCtor.Modifiers = ((typeDeclaration.Modifiers & Modifiers.Abstract) == Modifiers.Abstract ? Modifiers.Protected : Modifiers.Public);
@@ -96,12 +132,15 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				if (emptyCtor.IsMatch(instanceCtors[0]))
 					instanceCtors[0].Remove();
 			}
+		}
 		
+		void HandleStaticFieldInitializers(IEnumerable<AstNode> members)
+		{
 			// Convert static constructor into field initializers if the class is BeforeFieldInit
-			var staticCtor = typeDeclaration.Members.OfType<ConstructorDeclaration>().FirstOrDefault(c => (c.Modifiers & Modifiers.Static) == Modifiers.Static);
+			var staticCtor = members.OfType<ConstructorDeclaration>().FirstOrDefault(c => (c.Modifiers & Modifiers.Static) == Modifiers.Static);
 			if (staticCtor != null) {
-				TypeDefinition typeDef = typeDeclaration.Annotation<TypeDefinition>();
-				if (typeDef != null && typeDef.IsBeforeFieldInit) {
+				MethodDefinition ctorMethodDef = staticCtor.Annotation<MethodDefinition>();
+				if (ctorMethodDef != null && ctorMethodDef.DeclaringType.IsBeforeFieldInit) {
 					while (true) {
 						ExpressionStatement es = staticCtor.Body.Statements.FirstOrDefault() as ExpressionStatement;
 						if (es == null)
@@ -112,7 +151,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 						FieldDefinition fieldDef = assignment.Left.Annotation<FieldReference>().ResolveWithinSameModule();
 						if (fieldDef == null || !fieldDef.IsStatic)
 							break;
-						FieldDeclaration fieldDecl = typeDeclaration.Members.OfType<FieldDeclaration>().FirstOrDefault(f => f.Annotation<FieldDefinition>() == fieldDef);
+						FieldDeclaration fieldDecl = members.OfType<FieldDeclaration>().FirstOrDefault(f => f.Annotation<FieldDefinition>() == fieldDef);
 						if (fieldDecl == null)
 							break;
 						fieldDecl.Variables.Single().Initializer = assignment.Right.Detach();
@@ -122,11 +161,15 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 						staticCtor.Remove();
 				}
 			}
-			return null;
 		}
 		
 		void IAstTransform.Run(AstNode node)
 		{
+			// If we're viewing some set of members (fields are direct children of CompilationUnit),
+			// we also need to handle those:
+			HandleInstanceFieldInitializers(node.Children);
+			HandleStaticFieldInitializers(node.Children);
+			
 			node.AcceptVisitor(this, null);
 		}
 	}

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/DecimalConstantTransform.cs

@@ -0,0 +1,58 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using ICSharpCode.NRefactory.CSharp;
+using ICSharpCode.NRefactory.PatternMatching;
+using Mono.Cecil;
+
+namespace ICSharpCode.Decompiler.Ast.Transforms
+{
+	/// <summary>
+	/// Transforms decimal constant fields.
+	/// </summary>
+	public class DecimalConstantTransform : DepthFirstAstVisitor<object, object>, IAstTransform
+	{
+		static readonly PrimitiveType decimalType = new PrimitiveType("decimal");
+		
+		public override object VisitFieldDeclaration(FieldDeclaration fieldDeclaration, object data)
+		{
+			const Modifiers staticReadOnly = Modifiers.Static | Modifiers.Readonly;
+			if ((fieldDeclaration.Modifiers & staticReadOnly) == staticReadOnly && decimalType.IsMatch(fieldDeclaration.ReturnType)) {
+				foreach (var attributeSection in fieldDeclaration.Attributes) {
+					foreach (var attribute in attributeSection.Attributes) {
+						TypeReference tr = attribute.Type.Annotation<TypeReference>();
+						if (tr != null && tr.Name == "DecimalConstantAttribute" && tr.Namespace == "System.Runtime.CompilerServices") {
+							attribute.Remove();
+							if (attributeSection.Attributes.Count == 0)
+								attributeSection.Remove();
+							fieldDeclaration.Modifiers = (fieldDeclaration.Modifiers & ~staticReadOnly) | Modifiers.Const;
+							return null;
+						}
+					}
+				}
+			}
+			return null;
+		}
+		
+		public void Run(AstNode compilationUnit)
+		{
+			compilationUnit.AcceptVisitor(this, null);
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/DeclareVariables.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/DelegateConstruction.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -46,7 +61,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		
 		public override object VisitObjectCreateExpression(ObjectCreateExpression objectCreateExpression, object data)
 		{
-			if (objectCreateExpression.Arguments.Count() == 2) {
+			if (objectCreateExpression.Arguments.Count == 2) {
 				Expression obj = objectCreateExpression.Arguments.First();
 				Expression func = objectCreateExpression.Arguments.Last();
 				Annotation annotation = func.Annotation<Annotation>();
@@ -100,7 +115,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		
 		internal static bool IsAnonymousMethod(DecompilerContext context, MethodDefinition method)
 		{
-			if (method == null || !method.Name.StartsWith("<", StringComparison.Ordinal))
+			if (method == null || !(method.Name.StartsWith("<", StringComparison.Ordinal) || method.Name.Contains("$")))
 				return false;
 			if (!(method.IsCompilerGenerated() || IsPotentialClosure(context, method.DeclaringType)))
 				return false;
@@ -111,6 +126,8 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		{
 			if (!context.Settings.AnonymousMethods)
 				return false; // anonymous method decompilation is disabled
+			if (target != null && !(target is IdentifierExpression || target is ThisReferenceExpression || target is NullReferenceExpression))
+				return false; // don't copy arbitrary expressions, deal with identifiers only
 			
 			// Anonymous methods are defined in the same assembly
 			MethodDefinition method = methodRef.ResolveWithinSameModule();
@@ -119,6 +136,9 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			
 			// Create AnonymousMethodExpression and prepare parameters
 			AnonymousMethodExpression ame = new AnonymousMethodExpression();
+			ame.CopyAnnotationsFrom(objectCreateExpression); // copy ILRanges etc.
+			ame.RemoveAnnotations<MethodReference>(); // remove reference to delegate ctor
+			ame.AddAnnotation(method); // add reference to anonymous method
 			ame.Parameters.AddRange(AstBuilder.MakeParameters(method, isLambda: true));
 			ame.HasParameterList = true;
 			
@@ -163,6 +183,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			}
 			if (isLambda) {
 				LambdaExpression lambda = new LambdaExpression();
+				lambda.CopyAnnotationsFrom(ame);
 				ame.Parameters.MoveTo(lambda.Parameters);
 				Expression returnExpr = ((ReturnStatement)body.Statements.Single()).Expression;
 				returnExpr.Remove();
@@ -175,7 +196,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			return true;
 		}
 		
-		static bool IsPotentialClosure(DecompilerContext context, TypeDefinition potentialDisplayClass)
+		internal static bool IsPotentialClosure(DecompilerContext context, TypeDefinition potentialDisplayClass)
 		{
 			if (potentialDisplayClass == null || !potentialDisplayClass.IsCompilerGeneratedOrIsInCompilerGeneratedClass())
 				return false;
@@ -328,12 +349,30 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 						if (right is ThisReferenceExpression) {
 							isParameter = true;
 						} else if (right is IdentifierExpression) {
-							// handle parameters only if the whole method contains no other occurrance except for 'right'
+							// handle parameters only if the whole method contains no other occurrence except for 'right'
 							ILVariable v = right.Annotation<ILVariable>();
 							isParameter = v.IsParameter && parameterOccurrances.Count(c => c == v) == 1;
-							if (!isParameter && TypeAnalysis.IsSameType(v.Type, fieldDef.FieldType) && IsPotentialClosure(context, v.Type.ResolveWithinSameModule())) {
+							if (!isParameter && IsPotentialClosure(context, v.Type.ResolveWithinSameModule())) {
+								// parent display class within the same method
+								// (closure2.localsX = closure1;)
 								isDisplayClassParentPointerAssignment = true;
 							}
+						} else if (right is MemberReferenceExpression) {
+							// copy of parent display class reference from an outer lambda
+							// closure2.localsX = this.localsY
+							MemberReferenceExpression mre = m.Get<MemberReferenceExpression>("right").Single();
+							do {
+								// descend into the targets of the mre as long as the field types are closures
+								FieldDefinition fieldDef2 = mre.Annotation<FieldReference>().ResolveWithinSameModule();
+								if (fieldDef2 == null || !IsPotentialClosure(context, fieldDef2.FieldType.ResolveWithinSameModule())) {
+									break;
+								}
+								// if we finally get to a this reference, it's copying a display class parent pointer
+								if (mre.Target is ThisReferenceExpression) {
+									isDisplayClassParentPointerAssignment = true;
+								}
+								mre = mre.Target as MemberReferenceExpression;
+							} while (mre != null);
 						}
 						if (isParameter || isDisplayClassParentPointerAssignment) {
 							dict[fieldDef] = right;
@@ -349,12 +388,17 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				// Now create variables for all fields of the display class (except for those that we already handled as parameters)
 				List<Tuple<AstType, string>> variablesToDeclare = new List<Tuple<AstType, string>>();
 				foreach (FieldDefinition field in type.Fields) {
+					if (field.IsStatic)
+						continue; // skip static fields
 					if (dict.ContainsKey(field)) // skip field if it already was handled as parameter
 						continue;
-					EnsureVariableNameIsAvailable(blockStatement, field.Name);
-					currentlyUsedVariableNames.Add(field.Name);
-					variablesToDeclare.Add(Tuple.Create(AstBuilder.ConvertType(field.FieldType, field), field.Name));
-					dict[field] = new IdentifierExpression(field.Name);
+					string capturedVariableName = field.Name;
+					if (capturedVariableName.StartsWith("$VB$Local_", StringComparison.Ordinal) && capturedVariableName.Length > 10)
+						capturedVariableName = capturedVariableName.Substring(10);
+					EnsureVariableNameIsAvailable(blockStatement, capturedVariableName);
+					currentlyUsedVariableNames.Add(capturedVariableName);
+					variablesToDeclare.Add(Tuple.Create(AstBuilder.ConvertType(field.FieldType, field), capturedVariableName));
+					dict[field] = new IdentifierExpression(capturedVariableName);
 				}
 				
 				// Now figure out where the closure was accessed and use the simpler replacement expression there:

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/IntroduceExtensionMethods.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Linq;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/IntroduceQueryExpressions.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Diagnostics;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/IntroduceUnsafeModifier.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using ICSharpCode.NRefactory.CSharp;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/IntroduceUsingDeclarations.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -12,14 +27,13 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 	/// <summary>
 	/// Introduces using declarations.
 	/// </summary>
-	public class IntroduceUsingDeclarations : DepthFirstAstVisitor<object, object>, IAstTransform
+	public class IntroduceUsingDeclarations : IAstTransform
 	{
 		DecompilerContext context;
 		
 		public IntroduceUsingDeclarations(DecompilerContext context)
 		{
 			this.context = context;
-			currentNamespace = context.CurrentType != null ? context.CurrentType.Namespace : string.Empty;
 		}
 		
 		public void Run(AstNode compilationUnit)
@@ -28,7 +42,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				return;
 			
 			// First determine all the namespaces that need to be imported:
-			compilationUnit.AcceptVisitor(this, null);
+			compilationUnit.AcceptVisitor(new FindRequiredImports(this), null);
 			
 			importedNamespaces.Add("System"); // always import System, even when not necessary
 			
@@ -55,16 +69,27 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			}
 			
 			// verify that the SimpleTypes refer to the correct type (no ambiguities)
-			FullyQualifyAmbiguousTypeNames(compilationUnit);
+			compilationUnit.AcceptVisitor(new FullyQualifyAmbiguousTypeNamesVisitor(this), null);
 		}
 		
 		readonly HashSet<string> declaredNamespaces = new HashSet<string>() { string.Empty };
 		readonly HashSet<string> importedNamespaces = new HashSet<string>();
 		
+		// Note that we store type names with `n suffix, so we automatically disambiguate based on number of type parameters.
 		readonly HashSet<string> availableTypeNames = new HashSet<string>();
 		readonly HashSet<string> ambiguousTypeNames = new HashSet<string>();
+		
+		sealed class FindRequiredImports : DepthFirstAstVisitor<object, object>
+		{
+			readonly IntroduceUsingDeclarations transform;
 			string currentNamespace;
 			
+			public FindRequiredImports(IntroduceUsingDeclarations transform)
+			{
+				this.transform = transform;
+				this.currentNamespace = transform.context.CurrentType != null ? transform.context.CurrentType.Namespace : string.Empty;
+			}
+			
 			bool IsParentOfCurrentNamespace(string ns)
 			{
 				if (ns.Length == 0)
@@ -82,7 +107,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			{
 				TypeReference tr = simpleType.Annotation<TypeReference>();
 				if (tr != null && !IsParentOfCurrentNamespace(tr.Namespace)) {
-				importedNamespaces.Add(tr.Namespace);
+					transform.importedNamespaces.Add(tr.Namespace);
 				}
 				return base.VisitSimpleType(simpleType, data); // also visit type arguments
 			}
@@ -92,12 +117,13 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				string oldNamespace = currentNamespace;
 				foreach (Identifier ident in namespaceDeclaration.Identifiers) {
 					currentNamespace = NamespaceDeclaration.BuildQualifiedName(currentNamespace, ident.Name);
-				declaredNamespaces.Add(currentNamespace);
+					transform.declaredNamespaces.Add(currentNamespace);
 				}
 				base.VisitNamespaceDeclaration(namespaceDeclaration, data);
 				currentNamespace = oldNamespace;
 				return null;
 			}
+		}
 		
 		void FindAmbiguousTypeNames(ModuleDefinition module, bool internalsVisible)
 		{
@@ -111,17 +137,176 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			}
 		}
 		
-		void FullyQualifyAmbiguousTypeNames(AstNode compilationUnit)
+		sealed class FullyQualifyAmbiguousTypeNamesVisitor : DepthFirstAstVisitor<object, object>
+		{
+			readonly IntroduceUsingDeclarations transform;
+			string currentNamespace;
+			HashSet<string> currentMemberTypes;
+			Dictionary<string, MemberReference> currentMembers;
+			bool isWithinTypeReferenceExpression;
+			
+			public FullyQualifyAmbiguousTypeNamesVisitor(IntroduceUsingDeclarations transform)
+			{
+				this.transform = transform;
+				this.currentNamespace = transform.context.CurrentType != null ? transform.context.CurrentType.Namespace : string.Empty;
+			}
+			
+			public override object VisitNamespaceDeclaration(NamespaceDeclaration namespaceDeclaration, object data)
+			{
+				string oldNamespace = currentNamespace;
+				foreach (Identifier ident in namespaceDeclaration.Identifiers) {
+					currentNamespace = NamespaceDeclaration.BuildQualifiedName(currentNamespace, ident.Name);
+				}
+				base.VisitNamespaceDeclaration(namespaceDeclaration, data);
+				currentNamespace = oldNamespace;
+				return null;
+			}
+			
+			public override object VisitTypeDeclaration(TypeDeclaration typeDeclaration, object data)
+			{
+				HashSet<string> oldMemberTypes = currentMemberTypes;
+				currentMemberTypes = currentMemberTypes != null ? new HashSet<string>(currentMemberTypes) : new HashSet<string>();
+				
+				Dictionary<string, MemberReference> oldMembers = currentMembers;
+				currentMembers = new Dictionary<string, MemberReference>();
+				
+				TypeDefinition typeDef = typeDeclaration.Annotation<TypeDefinition>();
+				bool privateMembersVisible = true;
+				ModuleDefinition internalMembersVisibleInModule = typeDef.Module;
+				while (typeDef != null) {
+					foreach (GenericParameter gp in typeDef.GenericParameters) {
+						currentMemberTypes.Add(gp.Name);
+					}
+					foreach (TypeDefinition t in typeDef.NestedTypes) {
+						if (privateMembersVisible || IsVisible(t, internalMembersVisibleInModule))
+							currentMemberTypes.Add(t.Name.Substring(t.Name.LastIndexOf('+') + 1));
+					}
+					
+					foreach (MethodDefinition method in typeDef.Methods) {
+						if (privateMembersVisible || IsVisible(method, internalMembersVisibleInModule))
+							AddCurrentMember(method);
+					}
+					foreach (PropertyDefinition property in typeDef.Properties) {
+						if (privateMembersVisible || IsVisible(property.GetMethod, internalMembersVisibleInModule) || IsVisible(property.SetMethod, internalMembersVisibleInModule))
+							AddCurrentMember(property);
+					}
+					foreach (EventDefinition ev in typeDef.Events) {
+						if (privateMembersVisible || IsVisible(ev.AddMethod, internalMembersVisibleInModule) || IsVisible(ev.RemoveMethod, internalMembersVisibleInModule))
+							AddCurrentMember(ev);
+					}
+					foreach (FieldDefinition f in typeDef.Fields) {
+						if (privateMembersVisible || IsVisible(f, internalMembersVisibleInModule))
+							AddCurrentMember(f);
+					}
+					// repeat with base class:
+					if (typeDef.BaseType != null)
+						typeDef = typeDef.BaseType.Resolve();
+					else
+						typeDef = null;
+					privateMembersVisible = false;
+				}
+				
+				// Now add current members from outer classes:
+				if (oldMembers != null) {
+					foreach (var pair in oldMembers) {
+						// add members from outer classes only if the inner class doesn't define the member
+						if (!currentMembers.ContainsKey(pair.Key))
+							currentMembers.Add(pair.Key, pair.Value);
+					}
+				}
+				
+				base.VisitTypeDeclaration(typeDeclaration, data);
+				currentMembers = oldMembers;
+				return null;
+			}
+			
+			void AddCurrentMember(MemberReference m)
+			{
+				MemberReference existingMember;
+				if (currentMembers.TryGetValue(m.Name, out existingMember)) {
+					// We keep the existing member assignment if it was from another class (=from a derived class),
+					// because members in derived classes have precedence over members in base classes.
+					if (existingMember != null && existingMember.DeclaringType == m.DeclaringType) {
+						// Use null as value to signalize multiple members with the same name
+						currentMembers[m.Name] = null;
+					}
+				} else {
+					currentMembers.Add(m.Name, m);
+				}
+			}
+			
+			bool IsVisible(MethodDefinition m, ModuleDefinition internalMembersVisibleInModule)
+			{
+				if (m == null)
+					return false;
+				switch (m.Attributes & MethodAttributes.MemberAccessMask) {
+					case MethodAttributes.FamANDAssem:
+					case MethodAttributes.Assembly:
+						return m.Module == internalMembersVisibleInModule;
+					case MethodAttributes.Family:
+					case MethodAttributes.FamORAssem:
+					case MethodAttributes.Public:
+						return true;
+					default:
+						return false;
+				}
+			}
+			
+			bool IsVisible(FieldDefinition f, ModuleDefinition internalMembersVisibleInModule)
+			{
+				if (f == null)
+					return false;
+				switch (f.Attributes & FieldAttributes.FieldAccessMask) {
+					case FieldAttributes.FamANDAssem:
+					case FieldAttributes.Assembly:
+						return f.Module == internalMembersVisibleInModule;
+					case FieldAttributes.Family:
+					case FieldAttributes.FamORAssem:
+					case FieldAttributes.Public:
+						return true;
+					default:
+						return false;
+				}
+			}
+			
+			bool IsVisible(TypeDefinition t, ModuleDefinition internalMembersVisibleInModule)
+			{
+				if (t == null)
+					return false;
+				switch (t.Attributes & TypeAttributes.VisibilityMask) {
+					case TypeAttributes.NotPublic:
+					case TypeAttributes.NestedAssembly:
+					case TypeAttributes.NestedFamANDAssem:
+						return t.Module == internalMembersVisibleInModule;
+					case TypeAttributes.NestedFamily:
+					case TypeAttributes.NestedFamORAssem:
+					case TypeAttributes.NestedPublic:
+					case TypeAttributes.Public:
+						return true;
+					default:
+						return false;
+				}
+			}
+			
+			public override object VisitSimpleType(SimpleType simpleType, object data)
 			{
-			foreach (SimpleType simpleType in compilationUnit.Descendants.OfType<SimpleType>()) {
+				// Handle type arguments first, so that the fixed-up type arguments get moved over to the MemberType,
+				// if we're also creating one here.
+				base.VisitSimpleType(simpleType, data);
 				TypeReference tr = simpleType.Annotation<TypeReference>();
-				if (tr != null && ambiguousTypeNames.Contains(tr.Name)) {
+				// Fully qualify any ambiguous type names.
+				if (tr != null && IsAmbiguous(tr.Namespace, tr.Name)) {
 					AstType ns;
 					if (string.IsNullOrEmpty(tr.Namespace)) {
 						ns = new SimpleType("global");
 					} else {
 						string[] parts = tr.Namespace.Split('.');
+						if (IsAmbiguous(string.Empty, parts[0])) {
+							// conflict between namespace and type name/member name
+							ns = new MemberType { Target = new SimpleType("global"), IsDoubleColon = true, MemberName = parts[0] };
+						} else {
 							ns = new SimpleType(parts[0]);
+						}
 						for (int i = 1; i < parts.Length; i++) {
 							ns = new MemberType { Target = ns, MemberName = parts[i] };
 						}
@@ -134,6 +319,41 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 					simpleType.TypeArguments.MoveTo(mt.TypeArguments);
 					simpleType.ReplaceWith(mt);
 				}
+				return null;
+			}
+			
+			public override object VisitTypeReferenceExpression(TypeReferenceExpression typeReferenceExpression, object data)
+			{
+				isWithinTypeReferenceExpression = true;
+				base.VisitTypeReferenceExpression(typeReferenceExpression, data);
+				isWithinTypeReferenceExpression = false;
+				return null;
+			}
+			
+			bool IsAmbiguous(string ns, string name)
+			{
+				// If the type name conflicts with an inner class/type parameter, we need to fully-qualify it:
+				if (currentMemberTypes != null && currentMemberTypes.Contains(name))
+					return true;
+				// If the type name conflicts with a field/property etc. on the current class, we need to fully-qualify it,
+				// if we're inside an expression.
+				if (isWithinTypeReferenceExpression && currentMembers != null) {
+					MemberReference mr;
+					if (currentMembers.TryGetValue(name, out mr)) {
+						// However, in the special case where the member is a field or property with the same type
+						// as is requested, then we can use the short name (if it's not otherwise ambiguous)
+						PropertyDefinition prop = mr as PropertyDefinition;
+						FieldDefinition field = mr as FieldDefinition;
+						if (!(prop != null && prop.PropertyType.Namespace == ns && prop.PropertyType.Name == name)
+						    && !(field != null && field.FieldType.Namespace == ns && field.FieldType.Name == name))
+							return true;
+					}
+				}
+				// If the type is defined in the current namespace,
+				// then we can use the short name even if we imported type with same name from another namespace.
+				if (ns == currentNamespace && !string.IsNullOrEmpty(ns))
+					return false;
+				return transform.ambiguousTypeNames.Contains(name);
 			}
 		}
 	}

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/PatternStatementTransform.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -47,6 +62,9 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				result = TransformUsings(expressionStatement);
 				if (result != null)
 					return result;
+				result = TransformNonGenericForEach(expressionStatement);
+				if (result != null)
+					return result;
 			}
 			result = TransformFor(expressionStatement);
 			if (result != null)
@@ -118,7 +136,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		#endregion
 		
 		/// <summary>
-		/// $type $variable = $initializer;
+		/// $variable = $initializer;
 		/// </summary>
 		static readonly AstNode variableAssignPattern = new ExpressionStatement(
 			new AssignmentExpression(
@@ -136,7 +154,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		}
 		
 		static readonly AstNode usingTryCatchPattern = new TryCatchStatement {
-			TryBlock = new AnyNode("body"),
+			TryBlock = new AnyNode(),
 			FinallyBlock = new BlockStatement {
 				new Choice {
 					{ "valueType",
@@ -162,45 +180,61 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		{
 			Match m1 = variableAssignPattern.Match(node);
 			if (!m1.Success) return null;
-			AstNode tryCatch = node.NextSibling;
+			TryCatchStatement tryCatch = node.NextSibling as TryCatchStatement;
 			Match m2 = usingTryCatchPattern.Match(tryCatch);
 			if (!m2.Success) return null;
 			string variableName = m1.Get<IdentifierExpression>("variable").Single().Identifier;
-			if (variableName == m2.Get<IdentifierExpression>("ident").Single().Identifier) {
+			if (variableName != m2.Get<IdentifierExpression>("ident").Single().Identifier)
+				return null;
 			if (m2.Has("valueType")) {
 				// if there's no if(x!=null), then it must be a value type
 				ILVariable v = m1.Get<AstNode>("variable").Single().Annotation<ILVariable>();
 				if (v == null || v.Type == null || !v.Type.IsValueType)
 					return null;
 			}
+			
+			// There are two variants of the using statement:
+			// "using (var a = init)" and "using (expr)".
+			// The former declares a read-only variable 'a', and the latter declares an unnamed read-only variable
+			// to store the original value of 'expr'.
+			// This means that in order to introduce a using statement, in both cases we need to detect a read-only
+			// variable that is used only within that block.
+			
+			if (HasAssignment(tryCatch, variableName))
+				return null;
+			
+			VariableDeclarationStatement varDecl = FindVariableDeclaration(node, variableName);
+			if (varDecl == null || !(varDecl.Parent is BlockStatement))
+				return null;
+			
+			// Validate that the variable is not used after the using statement:
+			if (!IsVariableValueUnused(varDecl, tryCatch))
+				return null;
+			
 			node.Remove();
-				BlockStatement body = m2.Get<BlockStatement>("body").Single();
+			
 			UsingStatement usingStatement = new UsingStatement();
-				usingStatement.ResourceAcquisition = node.Expression.Detach();
-				usingStatement.EmbeddedStatement = body.Detach();
+			usingStatement.EmbeddedStatement = tryCatch.TryBlock.Detach();
 			tryCatch.ReplaceWith(usingStatement);
-				// Move the variable declaration into the resource acquisition, if possible
-				// This is necessary for the foreach-pattern to work on the result of the using-pattern
-				VariableDeclarationStatement varDecl = FindVariableDeclaration(usingStatement, variableName);
-				if (varDecl != null && varDecl.Parent is BlockStatement) {
-					Statement declarationPoint;
-					if (CanMoveVariableDeclarationIntoStatement(varDecl, usingStatement, out declarationPoint)) {
-						// Moving the variable into the UsingStatement is allowed:
+			
+			// If possible, we'll eliminate the variable completely:
+			if (usingStatement.EmbeddedStatement.Descendants.OfType<IdentifierExpression>().Any(ident => ident.Identifier == variableName)) {
+				// variable is used, so we'll create a variable declaration
 				usingStatement.ResourceAcquisition = new VariableDeclarationStatement {
 					Type = (AstType)varDecl.Type.Clone(),
 					Variables = {
 						new VariableInitializer {
 							Name = variableName,
 							Initializer = m1.Get<Expression>("initializer").Single().Detach()
-								}.CopyAnnotationsFrom(usingStatement.ResourceAcquisition)
+						}.CopyAnnotationsFrom(node.Expression)
 					}
 				}.CopyAnnotationsFrom(node);
-					}
+			} else {
+				// the variable is never used; eliminate it:
+				usingStatement.ResourceAcquisition = m1.Get<Expression>("initializer").Single().Detach();
 			}
 			return usingStatement;
 		}
-			return null;
-		}
 		
 		internal static VariableDeclarationStatement FindVariableDeclaration(AstNode node, string identifier)
 		{
@@ -217,6 +251,29 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			return null;
 		}
 		
+		/// <summary>
+		/// Gets whether the old variable value (assigned inside 'targetStatement' or earlier)
+		/// is read anywhere in the remaining scope of the variable declaration.
+		/// </summary>
+		bool IsVariableValueUnused(VariableDeclarationStatement varDecl, Statement targetStatement)
+		{
+			Debug.Assert(targetStatement.Ancestors.Contains(varDecl.Parent));
+			BlockStatement block = (BlockStatement)varDecl.Parent;
+			DefiniteAssignmentAnalysis daa = new DefiniteAssignmentAnalysis(block, context.CancellationToken);
+			daa.SetAnalyzedRange(targetStatement, block, startInclusive: false);
+			daa.Analyze(varDecl.Variables.Single().Name);
+			return daa.UnassignedVariableUses.Count == 0;
+		}
+		
+		// I used this in the first implementation of the using-statement transform, but now no longer
+		// because there were problems when multiple using statements were using the same variable
+		// - no single using statement could be transformed without making the C# code invalid,
+		// but transforming both would work.
+		// We now use 'IsVariableValueUnused' which will perform the transform
+		// even if it results in two variables with the same name and overlapping scopes.
+		// (this issue could be fixed later by renaming one of the variables)
+		
+		// I'm not sure whether the other consumers of 'CanMoveVariableDeclarationIntoStatement' should be changed the same way.
 		bool CanMoveVariableDeclarationIntoStatement(VariableDeclarationStatement varDecl, Statement targetStatement, out Statement declarationPoint)
 		{
 			Debug.Assert(targetStatement.Ancestors.Contains(varDecl.Parent));
@@ -233,10 +290,28 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			}
 			return true;
 		}
+		
+		/// <summary>
+		/// Gets whether there is an assignment to 'variableName' anywhere within the given node.
+		/// </summary>
+		bool HasAssignment(AstNode root, string variableName)
+		{
+			foreach (AstNode node in root.DescendantsAndSelf) {
+				IdentifierExpression ident = node as IdentifierExpression;
+				if (ident != null && ident.Identifier == variableName) {
+					if (ident.Parent is AssignmentExpression && ident.Role == AssignmentExpression.LeftRole
+					    || ident.Parent is DirectionExpression)
+					{
+						return true;
+					}
+				}
+			}
+			return false;
+		}
 		#endregion
 		
-		#region foreach
-		static readonly UsingStatement foreachPattern = new UsingStatement {
+		#region foreach (generic)
+		static readonly UsingStatement genericForeachPattern = new UsingStatement {
 			ResourceAcquisition = new VariableDeclarationStatement {
 				Type = new AnyNode("enumeratorType"),
 				Variables = {
@@ -270,7 +345,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		
 		public ForeachStatement TransformForeach(UsingStatement node)
 		{
-			Match m = foreachPattern.Match(node);
+			Match m = genericForeachPattern.Match(node);
 			if (!m.Success)
 				return null;
 			if (!(node.Parent is BlockStatement) && m.Has("variablesOutsideLoop")) {
@@ -308,8 +383,9 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				InExpression = m.Get<Expression>("collection").Single().Detach(),
 				EmbeddedStatement = newBody
 			};
-			if (foreachStatement.InExpression is BaseReferenceExpression)
-				foreachStatement.InExpression = new ThisReferenceExpression();
+			if (foreachStatement.InExpression is BaseReferenceExpression) {
+				foreachStatement.InExpression = new ThisReferenceExpression().CopyAnnotationsFrom(foreachStatement.InExpression);
+			}
 			node.ReplaceWith(foreachStatement);
 			foreach (Statement stmt in m.Get<Statement>("variablesOutsideLoop")) {
 				((BlockStatement)foreachStatement.Parent).Statements.InsertAfter(null, stmt.Detach());
@@ -318,6 +394,117 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		}
 		#endregion
 		
+		#region foreach (non-generic)
+		ExpressionStatement getEnumeratorPattern = new ExpressionStatement(
+			new AssignmentExpression(
+				new NamedNode("left", new IdentifierExpression()),
+				new AnyNode("collection").ToExpression().Invoke("GetEnumerator")
+			));
+		
+		TryCatchStatement nonGenericForeachPattern = new TryCatchStatement {
+			TryBlock = new BlockStatement {
+				new WhileStatement {
+					Condition = new IdentifierExpression().WithName("enumerator").Invoke("MoveNext"),
+					EmbeddedStatement = new BlockStatement {
+						new AssignmentExpression(
+							new IdentifierExpression().WithName("itemVar"),
+							new Choice {
+								new Backreference("enumerator").ToExpression().Member("Current"),
+								new CastExpression {
+									Type = new AnyNode("castType"),
+									Expression = new Backreference("enumerator").ToExpression().Member("Current")
+								}
+							}
+						),
+						new Repeat(new AnyNode("stmt")).ToStatement()
+					}
+				}.WithName("loop")
+			},
+			FinallyBlock = new BlockStatement {
+				new AssignmentExpression(
+					new IdentifierExpression().WithName("disposable"),
+					new Backreference("enumerator").ToExpression().CastAs(new TypePattern(typeof(IDisposable)))
+				),
+				new IfElseStatement {
+					Condition = new BinaryOperatorExpression {
+						Left = new Backreference("disposable"),
+						Operator = BinaryOperatorType.InEquality,
+						Right = new NullReferenceExpression()
+					},
+					TrueStatement = new BlockStatement {
+						new Backreference("disposable").ToExpression().Invoke("Dispose")
+					}
+				}
+			}};
+		
+		public ForeachStatement TransformNonGenericForEach(ExpressionStatement node)
+		{
+			Match m1 = getEnumeratorPattern.Match(node);
+			if (!m1.Success) return null;
+			AstNode tryCatch = node.NextSibling;
+			Match m2 = nonGenericForeachPattern.Match(tryCatch);
+			if (!m2.Success) return null;
+			
+			IdentifierExpression enumeratorVar = m2.Get<IdentifierExpression>("enumerator").Single();
+			IdentifierExpression itemVar = m2.Get<IdentifierExpression>("itemVar").Single();
+			WhileStatement loop = m2.Get<WhileStatement>("loop").Single();
+			
+			// verify that the getEnumeratorPattern assigns to the same variable as the nonGenericForeachPattern is reading from
+			if (!enumeratorVar.IsMatch(m1.Get("left").Single()))
+				return null;
+			
+			VariableDeclarationStatement enumeratorVarDecl = FindVariableDeclaration(loop, enumeratorVar.Identifier);
+			if (enumeratorVarDecl == null || !(enumeratorVarDecl.Parent is BlockStatement))
+				return null;
+			
+			// Find the declaration of the item variable:
+			// Because we look only outside the loop, we won't make the mistake of moving a captured variable across the loop boundary
+			VariableDeclarationStatement itemVarDecl = FindVariableDeclaration(loop, itemVar.Identifier);
+			if (itemVarDecl == null || !(itemVarDecl.Parent is BlockStatement))
+				return null;
+			
+			// Now verify that we can move the variable declaration in front of the loop:
+			Statement declarationPoint;
+			CanMoveVariableDeclarationIntoStatement(itemVarDecl, loop, out declarationPoint);
+			// We ignore the return value because we don't care whether we can move the variable into the loop
+			// (that is possible only with non-captured variables).
+			// We just care that we can move it in front of the loop:
+			if (declarationPoint != loop)
+				return null;
+			
+			ForeachStatement foreachStatement = new ForeachStatement();
+			foreachStatement.VariableType = itemVarDecl.Type.Clone();
+			foreachStatement.VariableName = itemVar.Identifier;
+			BlockStatement body = new BlockStatement();
+			foreachStatement.EmbeddedStatement = body;
+			((BlockStatement)node.Parent).Statements.InsertBefore(node, foreachStatement);
+			
+			body.Add(node.Detach());
+			body.Add((Statement)tryCatch.Detach());
+			
+			// Now that we moved the whole try-catch into the foreach loop; verify that we can
+			// move the enumerator into the foreach loop:
+			CanMoveVariableDeclarationIntoStatement(enumeratorVarDecl, foreachStatement, out declarationPoint);
+			if (declarationPoint != foreachStatement) {
+				// oops, the enumerator variable can't be moved into the foreach loop
+				// Undo our AST changes:
+				((BlockStatement)foreachStatement.Parent).Statements.InsertBefore(foreachStatement, node.Detach());
+				foreachStatement.ReplaceWith(tryCatch);
+				return null;
+			}
+			
+			// Now create the correct body for the foreach statement:
+			foreachStatement.InExpression = m1.Get<Expression>("collection").Single().Detach();
+			if (foreachStatement.InExpression is BaseReferenceExpression) {
+				foreachStatement.InExpression = new ThisReferenceExpression().CopyAnnotationsFrom(foreachStatement.InExpression);
+			}
+			body.Statements.Clear();
+			body.Statements.AddRange(m2.Get<Statement>("stmt").Select(stmt => stmt.Detach()));
+			
+			return foreachStatement;
+		}
+		#endregion
+		
 		#region for
 		static readonly WhileStatement forPattern = new WhileStatement {
 			Condition = new BinaryOperatorExpression {
@@ -515,12 +702,10 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			Match m = switchOnStringPattern.Match(node);
 			if (!m.Success)
 				return null;
-			if (m.Has("nonNullDefaultStmt") && !m.Has("nullStmt"))
-				return null;
 			// switchVar must be the same as switchExpr; or switchExpr must be an assignment and switchVar the left side of that assignment
 			if (!m.Get("switchVar").Single().IsMatch(m.Get("switchExpr").Single())) {
 				AssignmentExpression assign = m.Get("switchExpr").Single() as AssignmentExpression;
-				if (!m.Get("switchVar").Single().IsMatch(assign.Left))
+				if (!(assign != null && m.Get("switchVar").Single().IsMatch(assign.Left)))
 					return null;
 			}
 			FieldReference cachedDictField = m.Get<AstNode>("cachedDict").Single().Annotation<FieldReference>();
@@ -551,16 +736,22 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				block.Statements.Add(new BreakStatement());
 				section.Statements.Add(block.Detach());
 				sw.SwitchSections.Add(section);
+			} else if (m.Has("nonNullDefaultStmt")) {
+				sw.SwitchSections.Add(
+					new SwitchSection {
+						CaseLabels = { new CaseLabel { Expression = new NullReferenceExpression() } },
+						Statements = { new BlockStatement { new BreakStatement() } }
+					});
+			}
 			if (m.Has("nonNullDefaultStmt")) {
-					section = new SwitchSection();
+				SwitchSection section = new SwitchSection();
 				section.CaseLabels.Add(new CaseLabel());
-					block = new BlockStatement();
+				BlockStatement block = new BlockStatement();
 				block.Statements.AddRange(m.Get<Statement>("nonNullDefaultStmt").Select(s => s.Detach()));
 				block.Add(new BreakStatement());
 				section.Statements.Add(block);
 				sw.SwitchSections.Add(section);
 			}
-			}
 			node.ReplaceWith(sw);
 			return sw;
 		}

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/PushNegation.cs

@@ -1,4 +1,22 @@
-using System;
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Linq;
 using ICSharpCode.NRefactory.CSharp;

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/ReplaceMethodCallsWithOperators.cs

@@ -1,4 +1,22 @@
-using System;
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Linq;
 using ICSharpCode.NRefactory.PatternMatching;
@@ -32,7 +50,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 			var arguments = invocationExpression.Arguments.ToArray();
 			
 			// Reduce "String.Concat(a, b)" to "a + b"
-			if (methodRef != null && methodRef.Name == "Concat" && methodRef.DeclaringType.FullName == "System.String" && arguments.Length >= 2)
+			if (methodRef.Name == "Concat" && methodRef.DeclaringType.FullName == "System.String" && arguments.Length >= 2)
 			{
 				invocationExpression.Arguments.Clear(); // detach arguments from invocationExpression
 				Expression expr = arguments[0];
@@ -79,7 +97,10 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				return null;
 			}
 			if (methodRef.Name == "op_Implicit" && arguments.Length == 1) {
-				arguments[0].Remove(); // detach argument
+				invocationExpression.ReplaceWith(arguments[0]);
+				return null;
+			}
+			if (methodRef.Name == "op_True" && arguments.Length == 1 && invocationExpression.Role == AstNode.Roles.Condition) {
 				invocationExpression.ReplaceWith(arguments[0]);
 				return null;
 			}
@@ -256,7 +277,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 		
 		static bool IsWithoutSideEffects(Expression left)
 		{
-			return left is ThisReferenceExpression || left is IdentifierExpression || left is TypeReferenceExpression;
+			return left is ThisReferenceExpression || left is IdentifierExpression || left is TypeReferenceExpression || left is BaseReferenceExpression;
 		}
 		
 		void IAstTransform.Run(AstNode node)

src/Libraries/ICSharpCode.Decompiler/Ast/Transforms/TransformationPipeline.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Threading;
@@ -25,6 +40,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 				new AddCheckedBlocks(),
 				new DeclareVariables(context), // should run after most transforms that modify statements
 				new ConvertConstructorCallIntoInitializer(), // must run after DeclareVariables
+				new DecimalConstantTransform(),
 				new IntroduceUsingDeclarations(context),
 				new IntroduceExtensionMethods(context), // must run after IntroduceUsingDeclarations
 				new IntroduceQueryExpressions(context), // must run after IntroduceExtensionMethods

src/Libraries/ICSharpCode.Decompiler/Ast/TypesHierarchyHelpers.cs

@@ -1,4 +1,22 @@
-using System;
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
@@ -14,9 +32,9 @@ namespace ICSharpCode.Decompiler.Ast
 			if (resolveTypeArguments)
 				return BaseTypes(derivedType).Any(t => t.Item == baseType);
 			else {
-				var comparableBaseType = baseType.Resolve();
+				var comparableBaseType = baseType.ResolveOrThrow();
 				while (derivedType.BaseType != null) {
-					var resolvedBaseType = derivedType.BaseType.Resolve();
+					var resolvedBaseType = derivedType.BaseType.ResolveOrThrow();
 					if (resolvedBaseType == null)
 						return false;
 					if (comparableBaseType == resolvedBaseType)
@@ -27,20 +45,44 @@ namespace ICSharpCode.Decompiler.Ast
 			}
 		}
 
+		/// <summary>
+		/// Determines whether one method overrides or hides another method.
+		/// </summary>
+		/// <param name="parentMethod">The method declared in a base type.</param>
+		/// <param name="childMethod">The method declared in a derived type.</param>
+		/// <returns>true if <paramref name="childMethod"/> hides or overrides <paramref name="parentMethod"/>,
+		/// otherwise false.</returns>
 		public static bool IsBaseMethod(MethodDefinition parentMethod, MethodDefinition childMethod)
 		{
+			if (parentMethod == null)
+				throw new ArgumentNullException("parentMethod");
+			if (childMethod == null)
+				throw new ArgumentNullException("childMethod");
+
 			if (parentMethod.Name != childMethod.Name)
 				return false;
 
 			if (parentMethod.HasParameters || childMethod.HasParameters)
-				if(!parentMethod.HasParameters || ! childMethod.HasParameters || parentMethod.Parameters.Count != childMethod.Parameters.Count)
+				if (!parentMethod.HasParameters || !childMethod.HasParameters || parentMethod.Parameters.Count != childMethod.Parameters.Count)
 					return false;
 
 			return FindBaseMethods(childMethod).Any(m => m == parentMethod);// || (parentMethod.HasGenericParameters && m.);
 		}
 
+		/// <summary>
+		/// Determines whether a property overrides or hides another property.
+		/// </summary>
+		/// <param name="parentProperty">The property declared in a base type.</param>
+		/// <param name="childProperty">The property declared in a derived type.</param>
+		/// <returns>true if the <paramref name="childProperty"/> hides or overrides <paramref name="parentProperty"/>,
+		/// otherwise false.</returns>
 		public static bool IsBaseProperty(PropertyDefinition parentProperty, PropertyDefinition childProperty)
 		{
+			if (parentProperty == null)
+				throw new ArgumentNullException("parentProperty");
+			if (childProperty == null)
+				throw new ArgumentNullException("childProperty");
+
 			if (parentProperty.Name != childProperty.Name)
 				return false;
 
@@ -51,52 +93,148 @@ namespace ICSharpCode.Decompiler.Ast
 			return FindBaseProperties(childProperty).Any(m => m == parentProperty);
 		}
 
+		public static bool IsBaseEvent(EventDefinition parentEvent, EventDefinition childEvent)
+		{
+			if (parentEvent.Name != childEvent.Name)
+				return false;
+
+			return FindBaseEvents(childEvent).Any(m => m == parentEvent);
+		}
+
+		/// <summary>
+		/// Finds all methods from base types overridden or hidden by the specified method.
+		/// </summary>
+		/// <param name="method">The method which overrides or hides methods from base types.</param>
+		/// <returns>Methods overriden or hidden by the specified method.</returns>
 		public static IEnumerable<MethodDefinition> FindBaseMethods(MethodDefinition method)
 		{
+			if (method == null)
+				throw new ArgumentNullException("method");
+
 			var typeContext = CreateGenericContext(method.DeclaringType);
 			var gMethod = typeContext.ApplyTo(method);
 
 			foreach (var baseType in BaseTypes(method.DeclaringType))
 				foreach (var baseMethod in baseType.Item.Methods)
-					if (MatchMethod(baseType.ApplyTo(baseMethod), gMethod) && IsVisbleFrom(baseMethod, method)) {
+					if (MatchMethod(baseType.ApplyTo(baseMethod), gMethod) && IsVisibleFromDerived(baseMethod, method.DeclaringType)) {
 						yield return baseMethod;
-						if (!(baseMethod.IsNewSlot ^ baseMethod.IsVirtual))
+						if (baseMethod.IsNewSlot == baseMethod.IsVirtual)
 							yield break;
 					}
 		}
 
+		/// <summary>
+		/// Finds all properties from base types overridden or hidden by the specified property.
+		/// </summary>
+		/// <param name="property">The property which overrides or hides properties from base types.</param>
+		/// <returns>Properties overriden or hidden by the specified property.</returns>
 		public static IEnumerable<PropertyDefinition> FindBaseProperties(PropertyDefinition property)
 		{
+			if (property == null)
+				throw new ArgumentNullException("property");
+
+			if ((property.GetMethod ?? property.SetMethod).HasOverrides)
+				yield break;
+
 			var typeContext = CreateGenericContext(property.DeclaringType);
 			var gProperty = typeContext.ApplyTo(property);
+			bool isIndexer = property.IsIndexer();
 
 			foreach (var baseType in BaseTypes(property.DeclaringType))
 				foreach (var baseProperty in baseType.Item.Properties)
-					if (MatchProperty(baseType.ApplyTo(baseProperty), gProperty) && IsVisbleFrom(baseProperty, property)) {
+					if (MatchProperty(baseType.ApplyTo(baseProperty), gProperty)
+							&& IsVisibleFromDerived(baseProperty, property.DeclaringType)) {
+						if (isIndexer != baseProperty.IsIndexer())
+							continue;
 						yield return baseProperty;
 						var anyPropertyAccessor = baseProperty.GetMethod ?? baseProperty.SetMethod;
-						if (!(anyPropertyAccessor.IsNewSlot ^ anyPropertyAccessor.IsVirtual))
+						if (anyPropertyAccessor.IsNewSlot == anyPropertyAccessor.IsVirtual)
+							yield break;
+					}
+		}
+
+		public static IEnumerable<EventDefinition> FindBaseEvents(EventDefinition eventDef)
+		{
+			if (eventDef == null)
+				throw new ArgumentNullException("eventDef");
+
+			var typeContext = CreateGenericContext(eventDef.DeclaringType);
+			var gEvent = typeContext.ApplyTo(eventDef);
+
+			foreach (var baseType in BaseTypes(eventDef.DeclaringType))
+				foreach (var baseEvent in baseType.Item.Events)
+					if (MatchEvent(baseType.ApplyTo(baseEvent), gEvent) && IsVisibleFromDerived(baseEvent, eventDef.DeclaringType)) {
+						yield return baseEvent;
+						var anyEventAccessor = baseEvent.AddMethod ?? baseEvent.RemoveMethod;
+						if (anyEventAccessor.IsNewSlot == anyEventAccessor.IsVirtual)
 							yield break;
 					}
 
 		}
 
-		private static bool IsVisbleFrom(MethodDefinition baseCandidate, MethodDefinition method)
+		/// <summary>
+		/// Determinates whether member of the base type is visible from a derived type.
+		/// </summary>
+		/// <param name="baseMember">The member which visibility is checked.</param>
+		/// <param name="derivedType">The derived type.</param>
+		/// <returns>true if the member is visible from derived type, othewise false.</returns>
+		public static bool IsVisibleFromDerived(IMemberDefinition baseMember, TypeDefinition derivedType)
 		{
-			if (baseCandidate.IsPrivate)
+			if (baseMember == null)
+				throw new ArgumentNullException("baseMember");
+			if (derivedType == null)
+				throw new ArgumentNullException("derivedType");
+
+			var visibility = IsVisibleFromDerived(baseMember);
+			if (visibility.HasValue)
+				return visibility.Value;
+
+			if (baseMember.DeclaringType.Module == derivedType.Module)
+				return true;
+			// TODO: Check also InternalsVisibleToAttribute.
 				return false;
-			if ((baseCandidate.IsAssembly || baseCandidate.IsFamilyAndAssembly) && baseCandidate.Module != method.Module)
+		}
+
+		private static bool? IsVisibleFromDerived(IMemberDefinition member)
+		{
+			MethodAttributes attrs = GetAccessAttributes(member) & MethodAttributes.MemberAccessMask;
+			if (attrs == MethodAttributes.Private)
 				return false;
+			if (attrs == MethodAttributes.Assembly || attrs == MethodAttributes.FamANDAssem)
+				return null;
 				return true;
 		}
 
-		private static bool IsVisbleFrom(PropertyDefinition baseCandidate, PropertyDefinition property)
+		private static MethodAttributes GetAccessAttributes(IMemberDefinition member)
 		{
-			if (baseCandidate.GetMethod != null && property.GetMethod != null && IsVisbleFrom(baseCandidate.GetMethod, property.GetMethod))
-				return true;
-			if (baseCandidate.SetMethod != null && property.SetMethod != null && IsVisbleFrom(baseCandidate.SetMethod, property.SetMethod))
-				return true;
-			return false;
+			var fld = member as FieldDefinition;
+			if (fld != null)
+				return (MethodAttributes)fld.Attributes;
+
+			var method = member as MethodDefinition;
+			if (method != null)
+				return method.Attributes;
+
+			var prop = member as PropertyDefinition;
+			if (prop != null) {
+				return (prop.GetMethod ?? prop.SetMethod).Attributes;
+		}
+
+			var evnt = member as EventDefinition;
+			if (evnt != null) {
+				return (evnt.AddMethod ?? evnt.RemoveMethod).Attributes;
+			}
+
+			var nestedType = member as TypeDefinition;
+			if (nestedType != null) {
+				if (nestedType.IsNestedPrivate)
+					return MethodAttributes.Private;
+				if (nestedType.IsNestedAssembly || nestedType.IsNestedFamilyAndAssembly)
+					return MethodAttributes.Assembly;
+				return MethodAttributes.Public;
+			}
+
+			throw new NotSupportedException();
 		}
 
 		private static bool MatchMethod(GenericContext<MethodDefinition> candidate, GenericContext<MethodDefinition> method)
@@ -109,7 +247,7 @@ namespace ICSharpCode.Decompiler.Ast
 			if (mCandidate.HasOverrides)
 				return false;
 
-			if (!IsSameType(candidate.Resolve(mCandidate.ReturnType), method.Resolve(mMethod.ReturnType)))
+			if (mCandidate.IsSpecialName != method.Item.IsSpecialName)
 				return false;
 
 			if (mCandidate.HasGenericParameters || mMethod.HasGenericParameters) {
@@ -130,6 +268,22 @@ namespace ICSharpCode.Decompiler.Ast
 			return true;
 		}
 
+		public static bool MatchInterfaceMethod(MethodDefinition candidate, MethodDefinition method, TypeReference interfaceContextType)
+		{
+			var candidateContext = CreateGenericContext(candidate.DeclaringType);
+			var gCandidate = candidateContext.ApplyTo(candidate);
+
+			if (interfaceContextType is GenericInstanceType) {
+				var methodContext = new GenericContext<TypeDefinition>(interfaceContextType.Resolve(), ((GenericInstanceType)interfaceContextType).GenericArguments);
+				var gMethod = methodContext.ApplyTo(method);
+				return MatchMethod(gCandidate, gMethod);
+			} else {
+				var methodContext = CreateGenericContext(interfaceContextType.Resolve());
+				var gMethod = candidateContext.ApplyTo(method);
+				return MatchMethod(gCandidate, gMethod);
+			}
+		}
+
 		private static bool MatchProperty(GenericContext<PropertyDefinition> candidate, GenericContext<PropertyDefinition> property)
 		{
 			var mCandidate = candidate.Item;
@@ -140,9 +294,6 @@ namespace ICSharpCode.Decompiler.Ast
 			if ((mCandidate.GetMethod ?? mCandidate.SetMethod).HasOverrides)
 				return false;
 
-			if (!IsSameType(candidate.Resolve(mCandidate.PropertyType), property.Resolve(mProperty.PropertyType)))
-				return false;
-
 			if (mCandidate.HasParameters || mProperty.HasParameters) {
 				if (!mCandidate.HasParameters || !mProperty.HasParameters || mCandidate.Parameters.Count != mProperty.Parameters.Count)
 					return false;
@@ -156,10 +307,29 @@ namespace ICSharpCode.Decompiler.Ast
 			return true;
 		}
 
+		private static bool MatchEvent(GenericContext<EventDefinition> candidate, GenericContext<EventDefinition> ev)
+		{
+			var mCandidate = candidate.Item;
+			var mEvent = ev.Item;
+			if (mCandidate.Name != mEvent.Name)
+				return false;
+
+			if ((mCandidate.AddMethod ?? mCandidate.RemoveMethod).HasOverrides)
+				return false;
+
+			if (!IsSameType(candidate.ResolveWithContext(mCandidate.EventType), ev.ResolveWithContext(mEvent.EventType)))
+				return false;
+
+			return true;
+		}
+
 		private static bool MatchParameters(GenericContext<ParameterDefinition> baseParameterType, GenericContext<ParameterDefinition> parameterType)
 		{
-			var baseParam = baseParameterType.Resolve(baseParameterType.Item.ParameterType);
-			var param = parameterType.Resolve(parameterType.Item.ParameterType);
+			if (baseParameterType.Item.IsIn != parameterType.Item.IsIn ||
+					baseParameterType.Item.IsOut != parameterType.Item.IsOut)
+				return false;
+			var baseParam = baseParameterType.ResolveWithContext(baseParameterType.Item.ParameterType);
+			var param = parameterType.ResolveWithContext(parameterType.Item.ParameterType);
 			return IsSameType(baseParam, param);
 		}
 
@@ -170,8 +340,12 @@ namespace ICSharpCode.Decompiler.Ast
 			if (tr1 == null || tr2 == null)
 				return false;
 
+			if (tr1.GetType() != tr2.GetType())
+				return false;
+
 			if (tr1.Name == tr2.Name && tr1.FullName == tr2.FullName)
 				return true;
+
 			return false;
 		}
 
@@ -186,10 +360,10 @@ namespace ICSharpCode.Decompiler.Ast
 				var baseType = type.Item.BaseType;
 				var genericBaseType = baseType as GenericInstanceType;
 				if (genericBaseType != null) {
-					type = new GenericContext<TypeDefinition>(genericBaseType.Resolve(),
-						genericBaseType.GenericArguments.Select(t => type.Resolve(t)));
+					type = new GenericContext<TypeDefinition>(genericBaseType.ResolveOrThrow(),
+						genericBaseType.GenericArguments.Select(t => type.ResolveWithContext(t)));
 				} else
-					type = new GenericContext<TypeDefinition>(baseType.Resolve());
+					type = new GenericContext<TypeDefinition>(baseType.ResolveOrThrow());
 				yield return type;
 			}
 		}
@@ -201,21 +375,31 @@ namespace ICSharpCode.Decompiler.Ast
 				: new GenericContext<TypeDefinition>(type);
 		}
 
-		struct GenericContext<T>
+		struct GenericContext<T> where T : class
 		{
 			private static readonly ReadOnlyCollection<TypeReference> Empty = new ReadOnlyCollection<TypeReference>(new List<TypeReference>());
+			private static readonly GenericParameter UnresolvedGenericTypeParameter =
+				new DummyGenericParameterProvider(false).DummyParameter;
+			private static readonly GenericParameter UnresolvedGenericMethodParameter =
+				new DummyGenericParameterProvider(true).DummyParameter;
 
 			public readonly T Item;
 			public readonly ReadOnlyCollection<TypeReference> TypeArguments;
 
 			public GenericContext(T item)
 			{
+				if (item == null)
+					throw new ArgumentNullException("item");
+
 				Item = item;
 				TypeArguments = Empty;
 			}
 
 			public GenericContext(T item, IEnumerable<TypeReference> typeArguments)
 			{
+				if (item == null)
+					throw new ArgumentNullException("item");
+
 				Item = item;
 				var list = new List<TypeReference>();
 				foreach (var arg in typeArguments) {
@@ -231,31 +415,102 @@ namespace ICSharpCode.Decompiler.Ast
 				TypeArguments = typeArguments;
 			}
 
-			public TypeReference Resolve(TypeReference type)
+			public TypeReference ResolveWithContext(TypeReference type)
 			{
 				var genericParameter = type as GenericParameter;
-				if (genericParameter != null && genericParameter.Owner.GenericParameterType == GenericParameterType.Type) {
+				if (genericParameter != null)
+					if (genericParameter.Owner.GenericParameterType == GenericParameterType.Type)
 					return this.TypeArguments[genericParameter.Position];
+					else
+						return genericParameter.Owner.GenericParameterType == GenericParameterType.Type
+							? UnresolvedGenericTypeParameter : UnresolvedGenericMethodParameter;
+				var typeSpecification = type as TypeSpecification;
+				if (typeSpecification != null) {
+					var resolvedElementType = ResolveWithContext(typeSpecification.ElementType);
+					return ReplaceElementType(typeSpecification, resolvedElementType);
+				}
+				return type.ResolveOrThrow();
 			}
-				var arrayType = type as ArrayType;
+
+			private TypeReference ReplaceElementType(TypeSpecification ts, TypeReference newElementType)
+			{
+				var arrayType = ts as ArrayType;
 				if (arrayType != null) {
-					var resolvedElementType = Resolve(arrayType.ElementType);
-					if (resolvedElementType == null)
-						return null;
-					if (resolvedElementType == arrayType.ElementType)
+					if (newElementType == arrayType.ElementType)
 						return arrayType;
-					var newArrayType = new ArrayType(resolvedElementType, arrayType.Rank);
+					var newArrayType = new ArrayType(newElementType, arrayType.Rank);
 					for (int dimension = 0; dimension < arrayType.Rank; dimension++)
 						newArrayType.Dimensions[dimension] = arrayType.Dimensions[dimension];
 					return newArrayType;
 				}
-				return type.Resolve();
+				var byReferenceType = ts as ByReferenceType;
+				if (byReferenceType != null) {
+					return new ByReferenceType(newElementType);
+			}
+				// TODO: should we throw an exception instead calling Resolve method?
+				return ts.ResolveOrThrow();
 			}
 
-			public GenericContext<T2> ApplyTo<T2>(T2 item)
+			public GenericContext<T2> ApplyTo<T2>(T2 item) where T2 : class
 			{
 				return new GenericContext<T2>(item, this.TypeArguments);
 			}
+
+			private class DummyGenericParameterProvider : IGenericParameterProvider
+			{
+				readonly Mono.Cecil.GenericParameterType type;
+				readonly Mono.Collections.Generic.Collection<GenericParameter> parameters;
+
+				public DummyGenericParameterProvider(bool methodTypeParameter)
+				{
+					type = methodTypeParameter ? Mono.Cecil.GenericParameterType.Method :
+						Mono.Cecil.GenericParameterType.Type;
+					parameters = new Mono.Collections.Generic.Collection<GenericParameter>(1);
+					parameters.Add(new GenericParameter(this));
+		}
+
+				public GenericParameter DummyParameter
+				{
+					get { return parameters[0]; }
+	}
+
+				bool IGenericParameterProvider.HasGenericParameters
+				{
+					get { throw new NotImplementedException(); }
+				}
+
+				bool IGenericParameterProvider.IsDefinition
+				{
+					get { throw new NotImplementedException(); }
+				}
+
+				ModuleDefinition IGenericParameterProvider.Module
+				{
+					get { throw new NotImplementedException(); }
+				}
+
+				Mono.Collections.Generic.Collection<GenericParameter> IGenericParameterProvider.GenericParameters
+				{
+					get { return parameters; }
+				}
+
+				GenericParameterType IGenericParameterProvider.GenericParameterType
+				{
+					get { return type; }
+				}
+
+				MetadataToken IMetadataTokenProvider.MetadataToken
+				{
+					get
+					{
+						throw new NotImplementedException();
+					}
+					set
+					{
+						throw new NotImplementedException();
+					}
+				}
+			}
 		}
 	}
 }

src/Libraries/ICSharpCode.Decompiler/CecilExtensions.cs

@@ -186,6 +186,14 @@ namespace ICSharpCode.Decompiler
 				return null;
 		}
 
+		public static TypeDefinition ResolveOrThrow(this TypeReference typeReference)
+		{
+			var resolved = typeReference.Resolve();
+			if (resolved == null)
+				throw new ReferenceResolvingException();
+			return resolved;
+		}
+
 		public static bool IsCompilerGenerated(this ICustomAttributeProvider provider)
 		{
 			if (provider != null && provider.HasCustomAttributes) {

src/Libraries/ICSharpCode.Decompiler/CodeMappings.cs

@@ -0,0 +1,346 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+
+using ICSharpCode.Decompiler.Ast;
+using ICSharpCode.Decompiler.Disassembler;
+using ICSharpCode.Decompiler.ILAst;
+using ICSharpCode.NRefactory.CSharp;
+using Mono.Cecil;
+
+namespace ICSharpCode.Decompiler
+{
+	public enum DecompiledLanguages
+	{
+		IL,
+		CSharp
+	}
+	
+	/// <summary>
+	/// Base class for decompliler classes : AstBuilder & ReflectionDisassembler.
+	/// </summary>
+	public abstract class BaseCodeMappings
+	{
+		/// <summary>
+		/// Gets the code mappings.
+		/// <remarks>Key is the metadata token.</remarks>
+		/// </summary>
+		public Dictionary<int, List<MemberMapping>> CodeMappings { get; protected set; }
+		
+		/// <summary>
+		/// Gets the MembeReference that is decompiled (a MethodDefinition, PropertyDefinition etc.)
+		/// <remarks>Key is the metadata token.</remarks>
+		/// </summary>
+		public Dictionary<int, MemberReference> DecompiledMemberReferences { get; protected set; }
+		
+		/// <summary>
+		/// Create data in the CodeMappings and DecompiledMemberReferences.
+		/// </summary>
+		/// <param name="token">Token of the current method.</param>
+		/// <param name="member">Current member (MethodDefinition, PropertyDefinition, EventDefinition).</param>
+		/// <remarks>The token is used in CodeMappings; member (and its token) is used in DecompiledMemberReferences.</remarks>
+		protected virtual void CreateCodeMappings(int token, MemberReference member)
+		{
+			this.CodeMappings.Add(token, new List<MemberMapping>());
+			
+			int t = member.MetadataToken.ToInt32();
+			if (!this.DecompiledMemberReferences.ContainsKey(t))
+				this.DecompiledMemberReferences.Add(t, member);
+		}
+	}
+	
+	/// <summary>
+	/// Maps the source code to IL.
+	/// </summary>
+	public sealed class SourceCodeMapping
+	{
+		/// <summary>
+		/// Gets or sets the source code line number in the output.
+		/// </summary>
+		public int SourceCodeLine { get; internal set; }
+		
+		/// <summary>
+		/// Gets or sets IL Range offset for the source code line. E.g.: 13-19 &lt;-&gt; 135.
+		/// </summary>
+		public ILRange ILInstructionOffset { get; internal set; }
+		
+		/// <summary>
+		/// Gets or sets the member mapping this source code mapping belongs to.
+		/// </summary>
+		public MemberMapping MemberMapping { get; internal set; }
+		
+		/// <summary>
+		/// Retrieves the array that contains the IL range and the missing gaps between ranges.
+		/// </summary>
+		/// <returns>The array representation of the step aranges.</returns>
+		public int[] ToArray(bool isMatch)
+		{
+			var currentList = new List<ILRange>();
+			
+			// add list for the current source code line
+			currentList.AddRange(ILRange.OrderAndJoint(MemberMapping.MemberCodeMappings
+			                                           .FindAll(m => m.SourceCodeLine == this.SourceCodeLine)
+			                                           .ConvertAll<ILRange>(m => m.ILInstructionOffset)));
+			
+			if (!isMatch) {
+				// add inverted
+				currentList.AddRange(MemberMapping.InvertedList);
+			} else {
+				// if the current list contains the last mapping, add also the last gap
+				var lastInverted = MemberMapping.InvertedList.LastOrDefault();
+				if (lastInverted != null && lastInverted.From == currentList[currentList.Count - 1].To)
+					currentList.Add(lastInverted);
+			}
+			
+			// set the output
+			var resultList = new List<int>();
+			foreach (var element in ILRange.OrderAndJoint(currentList)) {
+				resultList.Add(element.From);
+				resultList.Add(element.To);
+			}
+			
+			return resultList.ToArray();
+		}
+	}
+	
+	/// <summary>
+	/// Stores the method information and its source code mappings.
+	/// </summary>
+	public sealed class MemberMapping
+	{
+		IEnumerable<ILRange> invertedList;
+		
+		/// <summary>
+		/// Gets or sets the type of the mapping.
+		/// </summary>
+		public MemberReference MemberReference { get; internal set; }
+		
+		/// <summary>
+		/// Metadata token of the member.
+		/// </summary>
+		public int MetadataToken { get; internal set; }
+		
+		/// <summary>
+		/// Gets or sets the code size for the member mapping.
+		/// </summary>
+		public int CodeSize { get; internal set; }
+		
+		/// <summary>
+		/// Gets or sets the source code mappings.
+		/// </summary>
+		public List<SourceCodeMapping> MemberCodeMappings { get; internal set; }
+		
+		/// <summary>
+		/// Gets the inverted IL Ranges.<br/>
+		/// E.g.: for (0-9, 11-14, 14-18, 21-25) => (9-11,18-21).
+		/// </summary>
+		/// <returns>IL Range inverted list.</returns>
+		public IEnumerable<ILRange> InvertedList
+		{
+			get {
+				if (invertedList == null) {
+					var list = MemberCodeMappings.ConvertAll<ILRange>(
+						s => new ILRange { From = s.ILInstructionOffset.From, To = s.ILInstructionOffset.To });
+					invertedList = ILRange.OrderAndJoint(ILRange.Invert(list, CodeSize));
+				}
+				return invertedList;
+			}
+		}
+	}
+	
+	/// <summary>
+	/// Code mappings helper class.
+	/// </summary>
+	public static class CodeMappings
+	{
+		/// <summary>
+		/// Create code mapping for a method.
+		/// </summary>
+		/// <param name="method">Method to create the mapping for.</param>
+		/// <param name="codeMappings">Source code mapping storage.</param>
+		/// <param name="actualMemberReference">The actual member reference.</param>
+		internal static MemberMapping CreateCodeMapping(
+			this MethodDefinition member,
+			List<MemberMapping> codeMappings,
+			MemberReference actualMemberReference = null)
+		{
+			if (member == null || !member.HasBody)
+				return null;
+			
+			if (codeMappings == null)
+				return null;
+			
+			// create IL/CSharp code mappings - used in debugger
+			MemberMapping currentMemberMapping = null;
+
+			if (codeMappings.Find(map => map.MetadataToken == member.MetadataToken.ToInt32()) == null) {
+				currentMemberMapping = new MemberMapping() {
+					MetadataToken = member.MetadataToken.ToInt32(),
+					MemberCodeMappings = new List<SourceCodeMapping>(),
+					MemberReference = actualMemberReference ?? member,
+					CodeSize = member.Body.CodeSize
+				};
+				
+				codeMappings.Add(currentMemberMapping);
+			}
+			
+			return currentMemberMapping;
+		}
+		
+		/// <summary>
+		/// Gets source code mapping and metadata token based on type name and line number.
+		/// </summary>
+		/// <param name="codeMappings">Code mappings storage.</param>
+		/// <param name="typeName">Member reference name.</param>
+		/// <param name="lineNumber">Line number.</param>
+		/// <param name="metadataToken">Metadata token.</param>
+		/// <returns></returns>
+		public static SourceCodeMapping GetInstructionByLineNumber(
+			this List<MemberMapping> codeMappings,
+			int lineNumber,
+			out int metadataToken)
+		{
+			if (codeMappings == null)
+				throw new ArgumentException("CodeMappings storage must be valid!");
+			
+			foreach (var maping in codeMappings) {
+				var map = maping.MemberCodeMappings.Find(m => m.SourceCodeLine == lineNumber);
+				if (map != null) {
+					metadataToken = maping.MetadataToken;
+					return map;
+				}
+			}
+			
+			metadataToken = 0;
+			return null;
+		}
+		
+		/// <summary>
+		/// Gets a mapping given a type, a token and an IL offset.
+		/// </summary>
+		/// <param name="codeMappings">Code mappings storage.</param>
+		/// <param name="token">Token.</param>
+		/// <param name="ilOffset">IL offset.</param>
+		/// <param name="isMatch">True, if perfect match.</param>
+		/// <returns>A code mapping.</returns>
+		public static SourceCodeMapping GetInstructionByTokenAndOffset(
+			this List<MemberMapping> codeMappings,
+			int token,
+			int ilOffset, 
+			out bool isMatch)
+		{
+			isMatch = false;
+			
+			if (codeMappings == null)
+				throw new ArgumentNullException("CodeMappings storage must be valid!");
+			
+			var maping = codeMappings.Find(m => m.MetadataToken == token);
+			
+			if (maping == null)
+				return null;
+			
+			// try find an exact match
+			var map = maping.MemberCodeMappings.Find(m => m.ILInstructionOffset.From <= ilOffset && ilOffset < m.ILInstructionOffset.To);
+			
+			if (map == null) {
+				// get the immediate next one
+				map = maping.MemberCodeMappings.Find(m => m.ILInstructionOffset.From > ilOffset);
+				isMatch = false;
+				if (map == null)
+					map = maping.MemberCodeMappings.LastOrDefault(); // get the last
+				
+				return map;
+			}
+			
+			isMatch = true;
+			return map;
+		}
+		
+		/// <summary>
+		/// Gets the source code and type name from metadata token and offset.
+		/// </summary>
+		/// <param name="codeMappings">Code mappings storage.</param>
+		/// <param name="token">Metadata token.</param>
+		/// <param name="ilOffset">IL offset.</param>
+		/// <param name="typeName">Type definition.</param>
+		/// <param name="line">Line number.</param>
+		/// <remarks>It is possible to exist to different types from different assemblies with the same metadata token.</remarks>
+		public static bool GetInstructionByTokenAndOffset(
+			this List<MemberMapping> codeMappings,
+			int token,
+			int ilOffset,
+			out MemberReference member,
+			out int line)
+		{
+			member = null;
+			line = 0;
+			
+			if (codeMappings == null)
+				throw new ArgumentException("CodeMappings storage must be valid!");
+			
+			var mapping = codeMappings.Find(m => m.MetadataToken == token);
+			if (mapping == null)
+				return false;
+			
+			var codeMapping = mapping.MemberCodeMappings.Find(
+				cm => cm.ILInstructionOffset.From <= ilOffset && ilOffset <= cm.ILInstructionOffset.To - 1);
+			if (codeMapping == null) {
+				codeMapping = mapping.MemberCodeMappings.Find(cm => cm.ILInstructionOffset.From > ilOffset);
+				if (codeMapping == null) {
+					codeMapping = mapping.MemberCodeMappings.LastOrDefault();
+					if (codeMapping == null)
+						return false;
+				}
+			}
+			
+			member = mapping.MemberReference;
+			line = codeMapping.SourceCodeLine;
+			return true;
+		}
+	}
+	
+	/// <summary>
+	/// Decompilation data. Can be used by other applications to store the decompilation data.
+	/// </summary>
+	public class DecompileInformation
+	{
+		/// <summary>
+		/// Gets ot sets the code mappings
+		/// </summary>
+		public Dictionary<int, List<MemberMapping>> CodeMappings { get; set; }
+		
+		/// <summary>
+		/// Gets or sets the local variables.
+		/// </summary>
+		public ConcurrentDictionary<int, IEnumerable<ILVariable>> LocalVariables { get; set; }
+		
+		/// <summary>
+		/// Gets the list of MembeReferences that are decompiled (TypeDefinitions, MethodDefinitions, etc)
+		/// </summary>
+		public Dictionary<int, MemberReference> DecompiledMemberReferences { get; set; }
+		
+		/// <summary>
+		/// Gets (or internal sets) the AST nodes.
+		/// </summary>
+		public IEnumerable<AstNode> AstNodes { get; set; }
+	}
+}

src/Libraries/ICSharpCode.Decompiler/DecompilerException.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Runtime.Serialization;

src/Libraries/ICSharpCode.Decompiler/DecompilerSettings.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.ComponentModel;
@@ -164,6 +179,51 @@ namespace ICSharpCode.Decompiler
 			}
 		}
 		
+		bool useDebugSymbols = true;
+		
+		/// <summary>
+		/// Gets/Sets whether to use variable names from debug symbols, if available.
+		/// </summary>
+		public bool UseDebugSymbols {
+			get { return useDebugSymbols; }
+			set {
+				if (useDebugSymbols != value) {
+					useDebugSymbols = value;
+					OnPropertyChanged("UseDebugSymbols");
+				}
+			}
+		}
+		
+		bool objectCollectionInitializers = true;
+		
+		/// <summary>
+		/// Gets/Sets whether to use C# 3.0 object/collection initializers
+		/// </summary>
+		public bool ObjectOrCollectionInitializers {
+			get { return objectCollectionInitializers; }
+			set {
+				if (objectCollectionInitializers != value) {
+					objectCollectionInitializers = value;
+					OnPropertyChanged("ObjectCollectionInitializers");
+				}
+			}
+		}
+		
+		bool showXmlDocumentation = true;
+		
+		/// <summary>
+		/// Gets/Sets whether to include XML documentation comments in the decompiled code
+		/// </summary>
+		public bool ShowXmlDocumentation {
+			get { return showXmlDocumentation; }
+			set {
+				if (showXmlDocumentation != value) {
+					showXmlDocumentation = value;
+					OnPropertyChanged("ShowXmlDocumentation");
+				}
+			}
+		}
+		
 		public event PropertyChangedEventHandler PropertyChanged;
 		
 		protected virtual void OnPropertyChanged(string propertyName)

src/Libraries/ICSharpCode.Decompiler/Disassembler/DisassemblerHelpers.cs

@@ -17,11 +17,32 @@
 // DEALINGS IN THE SOFTWARE.
 
 using System;
+using System.Collections.Generic;
 using Mono.Cecil;
 using Mono.Cecil.Cil;
 
 namespace ICSharpCode.Decompiler.Disassembler
 {
+	public enum ILNameSyntax
+	{
+		/// <summary>
+		/// class/valuetype + TypeName (built-in types use keyword syntax)
+		/// </summary>
+		Signature,
+		/// <summary>
+		/// Like signature, but always refers to type parameters using their position
+		/// </summary>
+		SignatureNoNamedTypeParameters,
+		/// <summary>
+		/// [assembly]Full.Type.Name (even for built-in types)
+		/// </summary>
+		TypeName,
+		/// <summary>
+		/// Name (but built-in types use keyword syntax)
+		/// </summary>
+		ShortTypeName
+	}
+	
 	public static class DisassemblerHelpers
 	{
 		public static void WriteOffsetReference(ITextOutput writer, Instruction instruction)
@@ -35,6 +56,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 			WriteOffsetReference(writer, exceptionHandler.TryStart);
 			writer.Write('-');
 			WriteOffsetReference(writer, exceptionHandler.TryEnd);
+			writer.Write(' ');
 			writer.Write(exceptionHandler.HandlerType.ToString());
 			if (exceptionHandler.FilterStart != null) {
 				writer.Write(' ');
@@ -56,8 +78,14 @@ namespace ICSharpCode.Decompiler.Disassembler
 			writer.WriteDefinition(CecilExtensions.OffsetToString(instruction.Offset), instruction);
 			writer.Write(": ");
 			writer.WriteReference(instruction.OpCode.Name, instruction.OpCode);
-			if(null != instruction.Operand) {
+			if (instruction.Operand != null) {
 				writer.Write(' ');
+				if (instruction.OpCode == OpCodes.Ldtoken) {
+					if (instruction.Operand is MethodReference)
+						writer.Write("method ");
+					else if (instruction.Operand is FieldReference)
+						writer.Write("field ");
+				}
 				WriteOperand(writer, instruction.Operand);
 			}
 		}
@@ -82,93 +110,189 @@ namespace ICSharpCode.Decompiler.Disassembler
 		
 		public static void WriteTo(this MethodReference method, ITextOutput writer)
 		{
-			if (method.HasThis)
+			if (method.ExplicitThis) {
+				writer.Write("instance explicit ");
+			}
+			else if (method.HasThis) {
 				writer.Write("instance ");
-			method.ReturnType.WriteTo(writer);
+			}
+			method.ReturnType.WriteTo(writer, ILNameSyntax.SignatureNoNamedTypeParameters);
 			writer.Write(' ');
 			if (method.DeclaringType != null) {
-				method.DeclaringType.WriteTo(writer, true);
+				method.DeclaringType.WriteTo(writer, ILNameSyntax.TypeName);
 				writer.Write("::");
 			}
-			writer.WriteReference(method.Name, method);
+			MethodDefinition md = method as MethodDefinition;
+			if (md != null && md.IsCompilerControlled) {
+				writer.WriteReference(Escape(method.Name + "$PST" + method.MetadataToken.ToInt32().ToString("X8")), method);
+			} else {
+				writer.WriteReference(Escape(method.Name), method);
+			}
+			GenericInstanceMethod gim = method as GenericInstanceMethod;
+			if (gim != null) {
+				writer.Write('<');
+				for (int i = 0; i < gim.GenericArguments.Count; i++) {
+					if (i > 0)
+						writer.Write(", ");
+					gim.GenericArguments[i].WriteTo(writer);
+				}
+				writer.Write('>');
+			}
 			writer.Write("(");
 			var parameters = method.Parameters;
 			for(int i = 0; i < parameters.Count; ++i) {
 				if (i > 0) writer.Write(", ");
-				parameters[i].ParameterType.WriteTo(writer);
+				parameters[i].ParameterType.WriteTo(writer, ILNameSyntax.SignatureNoNamedTypeParameters);
 			}
 			writer.Write(")");
 		}
 		
 		static void WriteTo(this FieldReference field, ITextOutput writer)
 		{
-			field.FieldType.WriteTo(writer);
+			field.FieldType.WriteTo(writer, ILNameSyntax.SignatureNoNamedTypeParameters);
 			writer.Write(' ');
-			field.DeclaringType.WriteTo(writer);
+			field.DeclaringType.WriteTo(writer, ILNameSyntax.TypeName);
 			writer.Write("::");
-			writer.WriteReference(field.Name, field);
+			writer.WriteReference(Escape(field.Name), field);
+		}
+		
+		static bool IsValidIdentifierCharacter(char c)
+		{
+			return c == '_' || c == '$' || c == '@' || c == '?' || c == '`';
+		}
+		
+		static bool IsValidIdentifier(string identifier)
+		{
+			if (string.IsNullOrEmpty(identifier))
+				return false;
+			if (!(char.IsLetter(identifier[0]) || IsValidIdentifierCharacter(identifier[0]))) {
+				// As a special case, .ctor and .cctor are valid despite starting with a dot
+				return identifier == ".ctor" || identifier == ".cctor";
+			}
+			for (int i = 1; i < identifier.Length; i++) {
+				if (!(char.IsLetterOrDigit(identifier[i]) || IsValidIdentifierCharacter(identifier[i]) || identifier[i] == '.'))
+					return false;
+			}
+			return true;
+		}
+		
+		static readonly HashSet<string> ilKeywords = BuildKeywordList(
+			"abstract", "algorithm", "alignment", "ansi", "any", "arglist",
+			"array", "as", "assembly", "assert", "at", "auto", "autochar", "beforefieldinit",
+			"blob", "blob_object", "bool", "brnull", "brnull.s", "brzero", "brzero.s", "bstr",
+			"bytearray", "byvalstr", "callmostderived", "carray", "catch", "cdecl", "cf",
+			"char", "cil", "class", "clsid", "const", "currency", "custom", "date", "decimal",
+			"default", "demand", "deny", "endmac", "enum", "error", "explicit", "extends", "extern",
+			"false", "famandassem", "family", "famorassem", "fastcall", "fault", "field", "filetime",
+			"filter", "final", "finally", "fixed", "float", "float32", "float64", "forwardref",
+			"fromunmanaged", "handler", "hidebysig", "hresult", "idispatch", "il", "illegal",
+			"implements", "implicitcom", "implicitres", "import", "in", "inheritcheck", "init",
+			"initonly", "instance", "int", "int16", "int32", "int64", "int8", "interface", "internalcall",
+			"iunknown", "lasterr", "lcid", "linkcheck", "literal", "localloc", "lpstr", "lpstruct", "lptstr",
+			"lpvoid", "lpwstr", "managed", "marshal", "method", "modopt", "modreq", "native", "nested",
+			"newslot", "noappdomain", "noinlining", "nomachine", "nomangle", "nometadata", "noncasdemand",
+			"noncasinheritance", "noncaslinkdemand", "noprocess", "not", "not_in_gc_heap", "notremotable",
+			"notserialized", "null", "nullref", "object", "objectref", "opt", "optil", "out",
+			"permitonly", "pinned", "pinvokeimpl", "prefix1", "prefix2", "prefix3", "prefix4", "prefix5", "prefix6",
+			"prefix7", "prefixref", "prejitdeny", "prejitgrant", "preservesig", "private", "privatescope", "protected",
+			"public", "record", "refany", "reqmin", "reqopt", "reqrefuse", "reqsecobj", "request", "retval",
+			"rtspecialname", "runtime", "safearray", "sealed", "sequential", "serializable", "special", "specialname",
+			"static", "stdcall", "storage", "stored_object", "stream", "streamed_object", "string", "struct",
+			"synchronized", "syschar", "sysstring", "tbstr", "thiscall", "tls", "to", "true", "typedref",
+			"unicode", "unmanaged", "unmanagedexp", "unsigned", "unused", "userdefined", "value", "valuetype",
+			"vararg", "variant", "vector", "virtual", "void", "wchar", "winapi", "with", "wrapper",
+			
+			// These are not listed as keywords in spec, but ILAsm treats them as such
+			"property", "type", "flags", "callconv", "strict"
+		);
+		
+		static HashSet<string> BuildKeywordList(params string[] keywords)
+		{
+			HashSet<string> s = new HashSet<string>(keywords);
+			foreach (var field in typeof(OpCodes).GetFields()) {
+				s.Add(((OpCode)field.GetValue(null)).Name);
+			}
+			return s;
 		}
 		
 		public static string Escape(string identifier)
 		{
+			if (IsValidIdentifier(identifier) && !ilKeywords.Contains(identifier)) {
 				return identifier;
+			} else {
+				// The ECMA specification says that ' inside SQString should be ecaped using an octal escape sequence,
+				// but we follow Microsoft's ILDasm and use \'.
+				return "'" + NRefactory.CSharp.OutputVisitor.ConvertString(identifier).Replace("'", "\\'") + "'";
+			}
 		}
 		
-		public static void WriteTo(this TypeReference type, ITextOutput writer, bool onlyName = false, bool shortName = false)
+		public static void WriteTo(this TypeReference type, ITextOutput writer, ILNameSyntax syntax = ILNameSyntax.Signature)
 		{
+			ILNameSyntax syntaxForElementTypes = syntax == ILNameSyntax.SignatureNoNamedTypeParameters ? syntax : ILNameSyntax.Signature;
 			if (type is PinnedType) {
-				writer.Write("pinned ");
-				((PinnedType)type).ElementType.WriteTo(writer, onlyName, shortName);
+				((PinnedType)type).ElementType.WriteTo(writer, syntaxForElementTypes);
+				writer.Write(" pinned");
 			} else if (type is ArrayType) {
 				ArrayType at = (ArrayType)type;
-				at.ElementType.WriteTo(writer, onlyName, shortName);
+				at.ElementType.WriteTo(writer, syntaxForElementTypes);
 				writer.Write('[');
 				writer.Write(string.Join(", ", at.Dimensions));
 				writer.Write(']');
 			} else if (type is GenericParameter) {
-				writer.WriteReference(type.Name, type);
+				writer.Write('!');
+				if (((GenericParameter)type).Owner.GenericParameterType == GenericParameterType.Method)
+					writer.Write('!');
+				if (string.IsNullOrEmpty(type.Name) || type.Name[0] == '!' || syntax == ILNameSyntax.SignatureNoNamedTypeParameters)
+					writer.Write(((GenericParameter)type).Position.ToString());
+				else
+					writer.Write(Escape(type.Name));
 			} else if (type is ByReferenceType) {
-				((ByReferenceType)type).ElementType.WriteTo(writer, onlyName, shortName);
+				((ByReferenceType)type).ElementType.WriteTo(writer, syntaxForElementTypes);
 				writer.Write('&');
 			} else if (type is PointerType) {
-				((PointerType)type).ElementType.WriteTo(writer, onlyName, shortName);
+				((PointerType)type).ElementType.WriteTo(writer, syntaxForElementTypes);
 				writer.Write('*');
 			} else if (type is GenericInstanceType) {
-				type.GetElementType().WriteTo(writer, onlyName, shortName);
+				type.GetElementType().WriteTo(writer, syntaxForElementTypes);
 				writer.Write('<');
 				var arguments = ((GenericInstanceType)type).GenericArguments;
 				for (int i = 0; i < arguments.Count; i++) {
 					if (i > 0)
 						writer.Write(", ");
-					arguments[i].WriteTo(writer, onlyName, shortName);
+					arguments[i].WriteTo(writer, syntaxForElementTypes);
 				}
 				writer.Write('>');
 			} else if (type is OptionalModifierType) {
-				writer.Write("modopt(");
-				((OptionalModifierType)type).ModifierType.WriteTo(writer, true, shortName);
+				((OptionalModifierType)type).ElementType.WriteTo(writer, syntax);
+				writer.Write(" modopt(");
+				((OptionalModifierType)type).ModifierType.WriteTo(writer, ILNameSyntax.TypeName);
 				writer.Write(") ");
-				((OptionalModifierType)type).ElementType.WriteTo(writer, onlyName, shortName);
 			} else if (type is RequiredModifierType) {
-				writer.Write("modreq(");
-				((RequiredModifierType)type).ModifierType.WriteTo(writer, true, shortName);
+				((RequiredModifierType)type).ElementType.WriteTo(writer, syntax);
+				writer.Write(" modreq(");
+				((RequiredModifierType)type).ModifierType.WriteTo(writer, ILNameSyntax.TypeName);
 				writer.Write(") ");
-				((RequiredModifierType)type).ElementType.WriteTo(writer, onlyName, shortName);
 			} else {
-				string name = PrimitiveTypeName(type);
-				if (name != null) {
+				string name = PrimitiveTypeName(type.FullName);
+				if (syntax == ILNameSyntax.ShortTypeName) {
+					if (name != null)
+						writer.Write(name);
+					else
+						writer.WriteReference(Escape(type.Name), type);
+				} else if ((syntax == ILNameSyntax.Signature || syntax == ILNameSyntax.SignatureNoNamedTypeParameters) && name != null) {
 					writer.Write(name);
 				} else {
-					if (!onlyName)
+					if (syntax == ILNameSyntax.Signature || syntax == ILNameSyntax.SignatureNoNamedTypeParameters)
 						writer.Write(type.IsValueType ? "valuetype " : "class ");
 					
 					if (type.DeclaringType != null) {
-						type.DeclaringType.WriteTo(writer, true, shortName);
+						type.DeclaringType.WriteTo(writer, ILNameSyntax.TypeName);
 						writer.Write('/');
 						writer.WriteReference(Escape(type.Name), type);
 					} else {
-						if (!type.IsDefinition && type.Scope != null && !shortName && !(type is TypeSpecification))
+						if (!type.IsDefinition && type.Scope != null && !(type is TypeSpecification))
 							writer.Write("[{0}]", Escape(type.Scope.Name));
-						writer.WriteReference(shortName ? type.Name : type.FullName, type);
+						writer.WriteReference(Escape(type.FullName), type);
 					}
 				}
 			}
@@ -193,7 +317,19 @@ namespace ICSharpCode.Decompiler.Disassembler
 			
 			VariableReference variableRef = operand as VariableReference;
 			if (variableRef != null) {
+				if (string.IsNullOrEmpty(variableRef.Name))
 					writer.WriteReference(variableRef.Index.ToString(), variableRef);
+				else
+					writer.WriteReference(Escape(variableRef.Name), variableRef);
+				return;
+			}
+			
+			ParameterReference paramRef = operand as ParameterReference;
+			if (paramRef != null) {
+				if (string.IsNullOrEmpty(paramRef.Name))
+					writer.WriteReference(paramRef.Index.ToString(), paramRef);
+				else
+					writer.WriteReference(Escape(paramRef.Name), paramRef);
 				return;
 			}
 			
@@ -205,7 +341,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 			
 			TypeReference typeRef = operand as TypeReference;
 			if (typeRef != null) {
-				typeRef.WriteTo(writer);
+				typeRef.WriteTo(writer, ILNameSyntax.TypeName);
 				return;
 			}
 			
@@ -217,17 +353,52 @@ namespace ICSharpCode.Decompiler.Disassembler
 			
 			string s = operand as string;
 			if (s != null) {
-				writer.Write("\"" + s.Replace("\\", "\\\\").Replace("\"", "\\\"") + "\"");
-				return;
+				writer.Write("\"" + NRefactory.CSharp.OutputVisitor.ConvertString(s) + "\"");
+			} else if (operand is char) {
+				writer.Write(((int)(char)operand).ToString());
+			} else if (operand is float) {
+				float val = (float)operand;
+				if (val == 0) {
+					writer.Write("0.0");
+				} else if (float.IsInfinity(val) || float.IsNaN(val)) {
+					byte[] data = BitConverter.GetBytes(val);
+					writer.Write('(');
+					for (int i = 0; i < data.Length; i++) {
+						if (i > 0)
+							writer.Write(' ');
+						writer.Write(data[i].ToString("X2"));
 					}
-			
+					writer.Write(')');
+				} else {
+					writer.Write(val.ToString("R", System.Globalization.CultureInfo.InvariantCulture));
+				}
+			} else if (operand is double) {
+				double val = (double)operand;
+				if (val == 0) {
+					writer.Write("0.0");
+				} else if (double.IsInfinity(val) || double.IsNaN(val)) {
+					byte[] data = BitConverter.GetBytes(val);
+					writer.Write('(');
+					for (int i = 0; i < data.Length; i++) {
+						if (i > 0)
+							writer.Write(' ');
+						writer.Write(data[i].ToString("X2"));
+					}
+					writer.Write(')');
+				} else {
+					writer.Write(val.ToString("R", System.Globalization.CultureInfo.InvariantCulture));
+				}
+			} else if (operand is bool) {
+				writer.Write((bool)operand ? "true" : "false");
+			} else {
 				s = ToInvariantCultureString(operand);
 				writer.Write(s);
 			}
+		}
 		
-		public static string PrimitiveTypeName(this TypeReference type)
+		public static string PrimitiveTypeName(string fullName)
 		{
-			switch (type.FullName) {
+			switch (fullName) {
 				case "System.SByte":
 					return "int8";
 				case "System.Int16":
@@ -258,6 +429,8 @@ namespace ICSharpCode.Decompiler.Disassembler
 					return "char";
 				case "System.Object":
 					return "object";
+				case "System.IntPtr":
+					return "native int";
 				default:
 					return null;
 			}

src/Libraries/ICSharpCode.Decompiler/Disassembler/ILStructure.cs

@@ -88,7 +88,9 @@ namespace ICSharpCode.Decompiler.Disassembler
 			: this(ILStructureType.Root, 0, body.CodeSize)
 		{
 			// Build the tree of exception structures:
-			foreach (ExceptionHandler eh in body.ExceptionHandlers) {
+			for (int i = 0; i < body.ExceptionHandlers.Count; i++) {
+				ExceptionHandler eh = body.ExceptionHandlers[i];
+				if (!body.ExceptionHandlers.Take(i).Any(oldEh => oldEh.TryStart == eh.TryStart && oldEh.TryEnd == eh.TryEnd))
 					AddNestedStructure(new ILStructure(ILStructureType.Try, eh.TryStart.Offset, eh.TryEnd.Offset, eh));
 				if (eh.HandlerType == ExceptionHandlerType.Filter)
 					AddNestedStructure(new ILStructure(ILStructureType.Filter, eh.FilterStart.Offset, eh.HandlerStart.Offset, eh));

src/Libraries/ICSharpCode.Decompiler/Disassembler/MethodBodyDisassembler.cs

@@ -20,8 +20,10 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
+
 using ICSharpCode.Decompiler;
 using ICSharpCode.Decompiler.FlowAnalysis;
+using ICSharpCode.Decompiler.ILAst;
 using Mono.Cecil;
 using Mono.Cecil.Cil;
 
@@ -45,13 +47,11 @@ namespace ICSharpCode.Decompiler.Disassembler
 			this.cancellationToken = cancellationToken;
 		}
 		
-		public void Disassemble(MethodBody body)
+		public void Disassemble(MethodBody body, MemberMapping methodMapping)
 		{
+			// start writing IL code
 			MethodDefinition method = body.Method;
 			output.WriteLine("// Method begins at RVA 0x{0:x4}", method.RVA);
-			if (method.HasOverrides)
-				foreach (var methodOverride in method.Overrides)
-					output.WriteLine(".override {0}::{1}", methodOverride.DeclaringType.FullName, methodOverride.Name);
 			output.WriteLine("// Code size {0} (0x{0:x})", body.CodeSize);
 			output.WriteLine(".maxstack {0}", body.MaxStackSize);
 			if (method.DeclaringType.Module.Assembly.EntryPoint == method)
@@ -66,8 +66,12 @@ namespace ICSharpCode.Decompiler.Disassembler
 				foreach (var v in method.Body.Variables) {
 					output.WriteDefinition("[" + v.Index + "] ", v);
 					v.VariableType.WriteTo(output);
+					if (!string.IsNullOrEmpty(v.Name)) {
 						output.Write(' ');
 						output.Write(DisassemblerHelpers.Escape(v.Name));
+					}
+					if (v.Index + 1 < method.Body.Variables.Count)
+						output.Write(',');
 					output.WriteLine();
 				}
 				output.Unindent();
@@ -77,12 +81,25 @@ namespace ICSharpCode.Decompiler.Disassembler
 			
 			if (detectControlStructure && body.Instructions.Count > 0) {
 				Instruction inst = body.Instructions[0];
-				WriteStructureBody(new ILStructure(body), ref inst);
+				HashSet<int> branchTargets = GetBranchTargets(body.Instructions);
+				WriteStructureBody(new ILStructure(body), branchTargets, ref inst, methodMapping, method.Body.CodeSize);
 			} else {
 				foreach (var inst in method.Body.Instructions) {
 					inst.WriteTo(output);
+					
+					if (methodMapping != null) {
+						// add IL code mappings - used in debugger
+						methodMapping.MemberCodeMappings.Add(
+							new SourceCodeMapping() {
+								SourceCodeLine = output.CurrentLine,
+								ILInstructionOffset = new ILRange { From = inst.Offset, To = inst.Next == null ? method.Body.CodeSize : inst.Next.Offset },
+								MemberMapping = methodMapping
+							});
+					}
+					
 					output.WriteLine();
 				}
+				if (method.Body.HasExceptionHandlers) {
 					output.WriteLine();
 					foreach (var eh in method.Body.ExceptionHandlers) {
 						eh.WriteTo(output);
@@ -90,6 +107,22 @@ namespace ICSharpCode.Decompiler.Disassembler
 					}
 				}
 			}
+		}
+		
+		HashSet<int> GetBranchTargets(IEnumerable<Instruction> instructions)
+		{
+			HashSet<int> branchTargets = new HashSet<int>();
+			foreach (var inst in instructions) {
+				Instruction target = inst.Operand as Instruction;
+				if (target != null)
+					branchTargets.Add(target.Offset);
+				Instruction[] targets = inst.Operand as Instruction[];
+				if (targets != null)
+					foreach (Instruction t in targets)
+						branchTargets.Add(t.Offset);
+			}
+			return branchTargets;
+		}
 		
 		void WriteStructureHeader(ILStructure s)
 		{
@@ -104,7 +137,8 @@ namespace ICSharpCode.Decompiler.Disassembler
 					output.WriteLine();
 					break;
 				case ILStructureType.Try:
-					output.WriteLine(".try {");
+					output.WriteLine(".try");
+					output.WriteLine("{");
 					break;
 				case ILStructureType.Handler:
 					switch (s.ExceptionHandler.HandlerType) {
@@ -113,22 +147,24 @@ namespace ICSharpCode.Decompiler.Disassembler
 							output.Write("catch");
 							if (s.ExceptionHandler.CatchType != null) {
 								output.Write(' ');
-								s.ExceptionHandler.CatchType.WriteTo(output);
+								s.ExceptionHandler.CatchType.WriteTo(output, ILNameSyntax.TypeName);
 							}
-							output.WriteLine(" {");
+							output.WriteLine();
 							break;
 						case Mono.Cecil.Cil.ExceptionHandlerType.Finally:
-							output.WriteLine("finally {");
+							output.WriteLine("finally");
 							break;
 						case Mono.Cecil.Cil.ExceptionHandlerType.Fault:
-							output.WriteLine("fault {");
+							output.WriteLine("fault");
 							break;
 						default:
 							throw new NotSupportedException();
 					}
+					output.WriteLine("{");
 					break;
 				case ILStructureType.Filter:
-					output.WriteLine("filter {");
+					output.WriteLine("filter");
+					output.WriteLine("{");
 					break;
 				default:
 					throw new NotSupportedException();
@@ -136,21 +172,44 @@ namespace ICSharpCode.Decompiler.Disassembler
 			output.Indent();
 		}
 		
-		void WriteStructureBody(ILStructure s, ref Instruction inst)
+		void WriteStructureBody(ILStructure s, HashSet<int> branchTargets, ref Instruction inst, MemberMapping currentMethodMapping, int codeSize)
 		{
+			bool isFirstInstructionInStructure = true;
+			bool prevInstructionWasBranch = false;
 			int childIndex = 0;
 			while (inst != null && inst.Offset < s.EndOffset) {
 				int offset = inst.Offset;
 				if (childIndex < s.Children.Count && s.Children[childIndex].StartOffset <= offset && offset < s.Children[childIndex].EndOffset) {
 					ILStructure child = s.Children[childIndex++];
 					WriteStructureHeader(child);
-					WriteStructureBody(child, ref inst);
+					WriteStructureBody(child, branchTargets, ref inst, currentMethodMapping, codeSize);
 					WriteStructureFooter(child);
 				} else {
+					if (!isFirstInstructionInStructure && (prevInstructionWasBranch || branchTargets.Contains(offset))) {
+						output.WriteLine(); // put an empty line after branches, and in front of branch targets
+					}
 					inst.WriteTo(output);
+					
+					// add IL code mappings - used in debugger
+					if (currentMethodMapping != null) {
+						currentMethodMapping.MemberCodeMappings.Add(
+							new SourceCodeMapping() {
+								SourceCodeLine = output.CurrentLine,
+								ILInstructionOffset = new ILRange { From = inst.Offset, To = inst.Next == null ? codeSize : inst.Next.Offset },
+								MemberMapping = currentMethodMapping
+							});
+					}
+					
 					output.WriteLine();
+					
+					prevInstructionWasBranch = inst.OpCode.FlowControl == FlowControl.Branch
+						|| inst.OpCode.FlowControl == FlowControl.Cond_Branch
+						|| inst.OpCode.FlowControl == FlowControl.Return
+						|| inst.OpCode.FlowControl == FlowControl.Throw;
+					
 					inst = inst.Next;
 				}
+				isFirstInstructionInStructure = false;
 			}
 		}
 		

src/Libraries/ICSharpCode.Decompiler/Disassembler/ReflectionDisassembler.cs

@@ -18,8 +18,10 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
 using System.Threading;
-
 using Mono.Cecil;
 using Mono.Collections.Generic;
 
@@ -28,13 +30,13 @@ namespace ICSharpCode.Decompiler.Disassembler
 	/// <summary>
 	/// Disassembles type and member definitions.
 	/// </summary>
-	public sealed class ReflectionDisassembler
+	public sealed class ReflectionDisassembler : BaseCodeMappings
 	{
 		ITextOutput output;
 		CancellationToken cancellationToken;
-		bool detectControlStructure;
 		bool isInType; // whether we are currently disassembling a whole type (-> defaultCollapsed for foldings)
 		MethodBodyDisassembler methodBodyDisassembler;
+		MemberReference currentMember;
 		
 		public ReflectionDisassembler(ITextOutput output, bool detectControlStructure, CancellationToken cancellationToken)
 		{
@@ -42,23 +44,27 @@ namespace ICSharpCode.Decompiler.Disassembler
 				throw new ArgumentNullException("output");
 			this.output = output;
 			this.cancellationToken = cancellationToken;
-			this.detectControlStructure = detectControlStructure;
 			this.methodBodyDisassembler = new MethodBodyDisassembler(output, detectControlStructure, cancellationToken);
+			
+			this.CodeMappings = new Dictionary<int, List<MemberMapping>>();
+			this.DecompiledMemberReferences = new Dictionary<int, MemberReference>();
 		}
 		
 		#region Disassemble Method
 		EnumNameCollection<MethodAttributes> methodAttributeFlags = new EnumNameCollection<MethodAttributes>() {
-			{ MethodAttributes.Static, "static" },
 			{ MethodAttributes.Final, "final" },
-			{ MethodAttributes.Virtual, "virtual" },
 			{ MethodAttributes.HideBySig, "hidebysig" },
-			{ MethodAttributes.Abstract, "abstract" },
 			{ MethodAttributes.SpecialName, "specialname" },
-			{ MethodAttributes.PInvokeImpl, "pinvokeimpl" },
+			{ MethodAttributes.PInvokeImpl, null }, // handled separately
 			{ MethodAttributes.UnmanagedExport, "export" },
 			{ MethodAttributes.RTSpecialName, "rtspecialname" },
-			{ MethodAttributes.RequireSecObject, "requiresecobj" },
-			{ MethodAttributes.NewSlot, "newslot" }
+			{ MethodAttributes.RequireSecObject, "reqsecobj" },
+			{ MethodAttributes.NewSlot, "newslot" },
+			{ MethodAttributes.CheckAccessOnOverride, "strict" },
+			{ MethodAttributes.Abstract, "abstract" },
+			{ MethodAttributes.Virtual, "virtual" },
+			{ MethodAttributes.Static, "static" },
+			{ MethodAttributes.HasSecurity, null }, // ?? also invisible in ILDasm
 		};
 		
 		EnumNameCollection<MethodAttributes> methodVisibility = new EnumNameCollection<MethodAttributes>() {
@@ -76,7 +82,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 			{ MethodCallingConvention.ThisCall, "unmanaged thiscall" },
 			{ MethodCallingConvention.FastCall, "unmanaged fastcall" },
 			{ MethodCallingConvention.VarArg, "vararg" },
-			{ MethodCallingConvention.Generic, "generic" },
+			{ MethodCallingConvention.Generic, null },
 		};
 		
 		EnumNameCollection<MethodImplAttributes> methodCodeType = new EnumNameCollection<MethodImplAttributes>() {
@@ -90,10 +96,16 @@ namespace ICSharpCode.Decompiler.Disassembler
 			{ MethodImplAttributes.Synchronized, "synchronized" },
 			{ MethodImplAttributes.NoInlining, "noinlining" },
 			{ MethodImplAttributes.NoOptimization, "nooptimization" },
+			{ MethodImplAttributes.PreserveSig, "preservesig" },
+			{ MethodImplAttributes.InternalCall, "internalcall" },
+			{ MethodImplAttributes.ForwardRef, "forwardref" },
 		};
 		
 		public void DisassembleMethod(MethodDefinition method)
 		{
+			// set current member
+			currentMember = method;
+			
 			// write method header
 			output.WriteDefinition(".method ", method);
 			DisassembleMethodInternal(method);
@@ -108,21 +120,71 @@ namespace ICSharpCode.Decompiler.Disassembler
 			//emit flags
 			WriteEnum(method.Attributes & MethodAttributes.MemberAccessMask, methodVisibility);
 			WriteFlags(method.Attributes & ~MethodAttributes.MemberAccessMask, methodAttributeFlags);
+			if(method.IsCompilerControlled) output.Write("privatescope ");
+			
+			if ((method.Attributes & MethodAttributes.PInvokeImpl) == MethodAttributes.PInvokeImpl) {
+				output.Write("pinvokeimpl");
+				if (method.HasPInvokeInfo && method.PInvokeInfo != null) {
+					PInvokeInfo info = method.PInvokeInfo;
+					output.Write("(\"" + NRefactory.CSharp.OutputVisitor.ConvertString(info.Module.Name) + "\"");
+					
+					if (!string.IsNullOrEmpty(info.EntryPoint) && info.EntryPoint != method.Name)
+						output.Write(" as \"" + NRefactory.CSharp.OutputVisitor.ConvertString(info.EntryPoint) + "\"");
+					
+					if (info.IsNoMangle)
+						output.Write(" nomangle");
+					
+					if (info.IsCharSetAnsi)
+						output.Write(" ansi");
+					else if (info.IsCharSetAuto)
+						output.Write(" autochar");
+					else if (info.IsCharSetUnicode)
+						output.Write(" unicode");
+					
+					if (info.SupportsLastError)
+						output.Write(" lasterr");
+					
+					if (info.IsCallConvCdecl)
+						output.Write(" cdecl");
+					else if (info.IsCallConvFastcall)
+						output.Write(" fastcall");
+					else if (info.IsCallConvStdCall)
+						output.Write(" stdcall");
+					else if (info.IsCallConvThiscall)
+						output.Write(" thiscall");
+					else if (info.IsCallConvWinapi)
+						output.Write(" winapi");
+					
+					output.Write(')');
+				}
+				output.Write(' ');
+			}
 			
 			output.WriteLine();
 			output.Indent();
-			
-			if (method.HasThis)
+			if (method.ExplicitThis) {
+				output.Write("instance explicit ");			
+			} else if (method.HasThis) {
 				output.Write("instance ");
+			}
 			
 			//call convention
 			WriteEnum(method.CallingConvention & (MethodCallingConvention)0x1f, callingConvention);
 			
-			
 			//return type
 			method.ReturnType.WriteTo(output);
 			output.Write(' ');
+			if (method.MethodReturnType.HasMarshalInfo) {
+				WriteMarshalInfo(method.MethodReturnType.MarshalInfo);
+			}
+			
+			if (method.IsCompilerControlled) {
+				output.Write(DisassemblerHelpers.Escape(method.Name + "$PST" + method.MetadataToken.ToInt32().ToString("X8")));
+			} else {
 				output.Write(DisassemblerHelpers.Escape(method.Name));
+			}
+			
+			WriteTypeParameters(output, method);
 			
 			//( params )
 			output.Write(" (");
@@ -142,31 +204,455 @@ namespace ICSharpCode.Decompiler.Disassembler
 			WriteFlags(method.ImplAttributes & ~(MethodImplAttributes.CodeTypeMask | MethodImplAttributes.ManagedMask), methodImpl);
 			
 			output.Unindent();
-			if (method.HasBody || method.HasCustomAttributes) {
 			OpenBlock(defaultCollapsed: isInType);
 			WriteAttributes(method.CustomAttributes);
+			if (method.HasOverrides) {
+				foreach (var methodOverride in method.Overrides) {
+					output.Write(".override method ");
+					methodOverride.WriteTo(output);
+					output.WriteLine();
+				}
+			}
+			foreach (var p in method.Parameters) {
+				WriteParameterAttributes(p);
+			}
+			WriteSecurityDeclarations(method);
 			
-				if (method.HasBody)
-					methodBodyDisassembler.Disassemble(method.Body);
+			if (method.HasBody) {
+				// create IL code mappings - used in debugger
+				CreateCodeMappings(method.MetadataToken.ToInt32(), currentMember);
+				MemberMapping methodMapping = method.CreateCodeMapping(this.CodeMappings[method.MetadataToken.ToInt32()], currentMember);
+				methodBodyDisassembler.Disassemble(method.Body, methodMapping);
+			}
 			
-				CloseBlock("End of method " + method.DeclaringType.Name + "." + method.Name);
+			CloseBlock("end of method " + DisassemblerHelpers.Escape(method.DeclaringType.Name) + "::" + DisassemblerHelpers.Escape(method.Name));
+		}
+		
+		#region Write Security Declarations
+		void WriteSecurityDeclarations(ISecurityDeclarationProvider secDeclProvider)
+		{
+			if (!secDeclProvider.HasSecurityDeclarations)
+				return;
+			foreach (var secdecl in secDeclProvider.SecurityDeclarations) {
+				output.Write(".permissionset ");
+				switch (secdecl.Action) {
+					case SecurityAction.Request:
+						output.Write("request");
+						break;
+					case SecurityAction.Demand:
+						output.Write("demand");
+						break;
+					case SecurityAction.Assert:
+						output.Write("assert");
+						break;
+					case SecurityAction.Deny:
+						output.Write("deny");
+						break;
+					case SecurityAction.PermitOnly:
+						output.Write("permitonly");
+						break;
+					case SecurityAction.LinkDemand:
+						output.Write("linkcheck");
+						break;
+					case SecurityAction.InheritDemand:
+						output.Write("inheritcheck");
+						break;
+					case SecurityAction.RequestMinimum:
+						output.Write("reqmin");
+						break;
+					case SecurityAction.RequestOptional:
+						output.Write("reqopt");
+						break;
+					case SecurityAction.RequestRefuse:
+						output.Write("reqrefuse");
+						break;
+					case SecurityAction.PreJitGrant:
+						output.Write("prejitgrant");
+						break;
+					case SecurityAction.PreJitDeny:
+						output.Write("prejitdeny");
+						break;
+					case SecurityAction.NonCasDemand:
+						output.Write("noncasdemand");
+						break;
+					case SecurityAction.NonCasLinkDemand:
+						output.Write("noncaslinkdemand");
+						break;
+					case SecurityAction.NonCasInheritance:
+						output.Write("noncasinheritance");
+						break;
+					default:
+						output.Write(secdecl.Action.ToString());
+						break;
+				}
+				output.WriteLine(" = {");
+				output.Indent();
+				for (int i = 0; i < secdecl.SecurityAttributes.Count; i++) {
+					SecurityAttribute sa = secdecl.SecurityAttributes[i];
+					if (sa.AttributeType.Scope == sa.AttributeType.Module) {
+						output.Write("class ");
+						output.Write(DisassemblerHelpers.Escape(GetAssemblyQualifiedName(sa.AttributeType)));
 					} else {
+						sa.AttributeType.WriteTo(output, ILNameSyntax.TypeName);
+					}
+					output.Write(" = {");
+					if (sa.HasFields || sa.HasProperties) {
+						output.WriteLine();
+						output.Indent();
+						
+						foreach (CustomAttributeNamedArgument na in sa.Fields) {
+							output.Write("field ");
+							WriteSecurityDeclarationArgument(na);
 							output.WriteLine();
 						}
+						
+						foreach (CustomAttributeNamedArgument na in sa.Properties) {
+							output.Write("property ");
+							WriteSecurityDeclarationArgument(na);
+							output.WriteLine();
 						}
 						
+						output.Unindent();
+					}
+					output.Write('}');
+					
+					if (i + 1< secdecl.SecurityAttributes.Count)
+						output.Write(',');
+					output.WriteLine();
+				}
+				output.Unindent();
+				output.WriteLine("}");
+			}
+		}
+		
+		void WriteSecurityDeclarationArgument(CustomAttributeNamedArgument na)
+		{
+			TypeReference type = na.Argument.Type;
+			if (type.MetadataType == MetadataType.Class || type.MetadataType == MetadataType.ValueType) {
+				output.Write("enum ");
+				if (type.Scope != type.Module) {
+					output.Write("class ");
+					output.Write(DisassemblerHelpers.Escape(GetAssemblyQualifiedName(type)));
+				} else {
+					type.WriteTo(output, ILNameSyntax.TypeName);
+				}
+			} else {
+				type.WriteTo(output);
+			}
+			output.Write(' ');
+			output.Write(DisassemblerHelpers.Escape(na.Name));
+			output.Write(" = ");
+			if (na.Argument.Value is string) {
+				// secdecls use special syntax for strings
+				output.Write("string('{0}')", NRefactory.CSharp.OutputVisitor.ConvertString((string)na.Argument.Value).Replace("'", "\'"));
+			} else {
+				WriteConstant(na.Argument.Value);
+			}
+		}
+		
+		string GetAssemblyQualifiedName(TypeReference type)
+		{
+			AssemblyNameReference anr = type.Scope as AssemblyNameReference;
+			if (anr == null) {
+				ModuleDefinition md = type.Scope as ModuleDefinition;
+				if (md != null) {
+					anr = md.Assembly.Name;
+				}
+			}
+			if (anr != null) {
+				return type.FullName + ", " + anr.FullName;
+			} else {
+				return type.FullName;
+			}
+		}
+		#endregion
+		
+		#region WriteMarshalInfo
+		void WriteMarshalInfo(MarshalInfo marshalInfo)
+		{
+			output.Write("marshal(");
+			WriteNativeType(marshalInfo.NativeType, marshalInfo);
+			output.Write(") ");
+		}
+		
+		void WriteNativeType(NativeType nativeType, MarshalInfo marshalInfo = null)
+		{
+			switch (nativeType) {
+				case NativeType.None:
+					break;
+				case NativeType.Boolean:
+					output.Write("bool");
+					break;
+				case NativeType.I1:
+					output.Write("int8");
+					break;
+				case NativeType.U1:
+					output.Write("unsigned int8");
+					break;
+				case NativeType.I2:
+					output.Write("int16");
+					break;
+				case NativeType.U2:
+					output.Write("unsigned int16");
+					break;
+				case NativeType.I4:
+					output.Write("int32");
+					break;
+				case NativeType.U4:
+					output.Write("unsigned int32");
+					break;
+				case NativeType.I8:
+					output.Write("int64");
+					break;
+				case NativeType.U8:
+					output.Write("unsigned int64");
+					break;
+				case NativeType.R4:
+					output.Write("float32");
+					break;
+				case NativeType.R8:
+					output.Write("float64");
+					break;
+				case NativeType.LPStr:
+					output.Write("lpstr");
+					break;
+				case NativeType.Int:
+					output.Write("int");
+					break;
+				case NativeType.UInt:
+					output.Write("unsigned int");
+					break;
+				case NativeType.Func:
+					goto default; // ??
+				case NativeType.Array:
+					ArrayMarshalInfo ami = (ArrayMarshalInfo)marshalInfo;
+					if (ami == null)
+						goto default;
+					if (ami.ElementType != NativeType.Max)
+						WriteNativeType(ami.ElementType);
+					output.Write('[');
+					if (ami.SizeParameterMultiplier == 0) {
+						output.Write(ami.Size.ToString());
+					} else {
+						if (ami.Size >= 0)
+							output.Write(ami.Size.ToString());
+						output.Write(" + ");
+						output.Write(ami.SizeParameterIndex.ToString());
+					}
+					output.Write(']');
+					break;
+				case NativeType.Currency:
+					output.Write("currency");
+					break;
+				case NativeType.BStr:
+					output.Write("bstr");
+					break;
+				case NativeType.LPWStr:
+					output.Write("lpwstr");
+					break;
+				case NativeType.LPTStr:
+					output.Write("lptstr");
+					break;
+				case NativeType.FixedSysString:
+					output.Write("fixed sysstring[{0}]", ((FixedSysStringMarshalInfo)marshalInfo).Size);
+					break;
+				case NativeType.IUnknown:
+					output.Write("iunknown");
+					break;
+				case NativeType.IDispatch:
+					output.Write("idispatch");
+					break;
+				case NativeType.Struct:
+					output.Write("struct");
+					break;
+				case NativeType.IntF:
+					output.Write("interface");
+					break;
+				case NativeType.SafeArray:
+					output.Write("safearray ");
+					SafeArrayMarshalInfo sami = marshalInfo as SafeArrayMarshalInfo;
+					if (sami != null) {
+						switch (sami.ElementType) {
+							case VariantType.None:
+								break;
+							case VariantType.I2:
+								output.Write("int16");
+								break;
+							case VariantType.I4:
+								output.Write("int32");
+								break;
+							case VariantType.R4:
+								output.Write("float32");
+								break;
+							case VariantType.R8:
+								output.Write("float64");
+								break;
+							case VariantType.CY:
+								output.Write("currency");
+								break;
+							case VariantType.Date:
+								output.Write("date");
+								break;
+							case VariantType.BStr:
+								output.Write("bstr");
+								break;
+							case VariantType.Dispatch:
+								output.Write("idispatch");
+								break;
+							case VariantType.Error:
+								output.Write("error");
+								break;
+							case VariantType.Bool:
+								output.Write("bool");
+								break;
+							case VariantType.Variant:
+								output.Write("variant");
+								break;
+							case VariantType.Unknown:
+								output.Write("iunknown");
+								break;
+							case VariantType.Decimal:
+								output.Write("decimal");
+								break;
+							case VariantType.I1:
+								output.Write("int8");
+								break;
+							case VariantType.UI1:
+								output.Write("unsigned int8");
+								break;
+							case VariantType.UI2:
+								output.Write("unsigned int16");
+								break;
+							case VariantType.UI4:
+								output.Write("unsigned int32");
+								break;
+							case VariantType.Int:
+								output.Write("int");
+								break;
+							case VariantType.UInt:
+								output.Write("unsigned int");
+								break;
+							default:
+								output.Write(sami.ElementType.ToString());
+								break;
+						}
+					}
+					break;
+				case NativeType.FixedArray:
+					output.Write("fixed array");
+					FixedArrayMarshalInfo fami = marshalInfo as FixedArrayMarshalInfo;
+					if (fami != null) {
+						output.Write("[{0}]", fami.Size);
+						if (fami.ElementType != NativeType.None) {
+							output.Write(' ');
+							WriteNativeType(fami.ElementType);
+						}
+					}
+					break;
+				case NativeType.ByValStr:
+					output.Write("byvalstr");
+					break;
+				case NativeType.ANSIBStr:
+					output.Write("ansi bstr");
+					break;
+				case NativeType.TBStr:
+					output.Write("tbstr");
+					break;
+				case NativeType.VariantBool:
+					output.Write("variant bool");
+					break;
+				case NativeType.ASAny:
+					output.Write("as any");
+					break;
+				case NativeType.LPStruct:
+					output.Write("lpstruct");
+					break;
+				case NativeType.CustomMarshaler:
+					CustomMarshalInfo cmi = marshalInfo as CustomMarshalInfo;
+					if (cmi == null)
+						goto default;
+					output.Write("custom(\"{0}\", \"{1}\"",
+					             NRefactory.CSharp.OutputVisitor.ConvertString(cmi.ManagedType.FullName),
+					             NRefactory.CSharp.OutputVisitor.ConvertString(cmi.Cookie));
+					if (cmi.Guid != Guid.Empty || !string.IsNullOrEmpty(cmi.UnmanagedType)) {
+						output.Write(", \"{0}\", \"{1}\"", cmi.Guid.ToString(), NRefactory.CSharp.OutputVisitor.ConvertString(cmi.UnmanagedType));
+					}
+					output.Write(')');
+					break;
+				case NativeType.Error:
+					output.Write("error");
+					break;
+				default:
+					output.Write(nativeType.ToString());
+					break;
+			}
+		}
+		#endregion
+		
 		void WriteParameters(Collection<ParameterDefinition> parameters)
 		{
 			for (int i = 0; i < parameters.Count; i++) {
 				var p = parameters[i];
+				if (p.IsIn)
+					output.Write("[in] ");
+				if (p.IsOut)
+					output.Write("[out] ");
+				if (p.IsOptional)
+					output.Write("[opt] ");
 				p.ParameterType.WriteTo(output);
 				output.Write(' ');
+				if (p.HasMarshalInfo) {
+					WriteMarshalInfo(p.MarshalInfo);
+				}
 				output.WriteDefinition(DisassemblerHelpers.Escape(p.Name), p);
 				if (i < parameters.Count - 1)
 					output.Write(',');
 				output.WriteLine();
 			}
 		}
+		
+		bool HasParameterAttributes(ParameterDefinition p)
+		{
+			return p.HasConstant || p.HasCustomAttributes;
+		}
+		
+		void WriteParameterAttributes(ParameterDefinition p)
+		{
+			if (!HasParameterAttributes(p))
+				return;
+			output.Write(".param [{0}]", p.Index + 1);
+			if (p.HasConstant) {
+				output.Write(" = ");
+				WriteConstant(p.Constant);
+			}
+			output.WriteLine();
+			WriteAttributes(p.CustomAttributes);
+		}
+		
+		void WriteConstant(object constant)
+		{
+			if (constant == null) {
+				output.Write("nullref");
+			} else {
+				string typeName = DisassemblerHelpers.PrimitiveTypeName(constant.GetType().FullName);
+				if (typeName != null && typeName != "string") {
+					output.Write(typeName);
+					output.Write('(');
+					float? cf = constant as float?;
+					double? cd = constant as double?;
+					if (cf.HasValue && (float.IsNaN(cf.Value) || float.IsInfinity(cf.Value))) {
+						output.Write("0x{0:x8}", BitConverter.ToInt32(BitConverter.GetBytes(cf.Value), 0));
+					} else if (cd.HasValue && (double.IsNaN(cd.Value) || double.IsInfinity(cd.Value))) {
+						output.Write("0x{0:x16}", BitConverter.DoubleToInt64Bits(cd.Value));
+					} else {
+						DisassemblerHelpers.WriteOperand(output, constant);
+					}
+					output.Write(')');
+				} else {
+					DisassemblerHelpers.WriteOperand(output, constant);
+				}
+			}
+		}
 		#endregion
 		
 		#region Disassemble Field
@@ -190,22 +676,31 @@ namespace ICSharpCode.Decompiler.Disassembler
 		
 		public void DisassembleField(FieldDefinition field)
 		{
+			// create mappings for decompiled fields only
+			this.DecompiledMemberReferences.Add(field.MetadataToken.ToInt32(), field);
+			
 			output.WriteDefinition(".field ", field);
 			WriteEnum(field.Attributes & FieldAttributes.FieldAccessMask, fieldVisibility);
-			WriteFlags(field.Attributes & ~(FieldAttributes.FieldAccessMask | FieldAttributes.HasDefault), fieldAttributes);
+			const FieldAttributes hasXAttributes = FieldAttributes.HasDefault | FieldAttributes.HasFieldMarshal | FieldAttributes.HasFieldRVA;
+			WriteFlags(field.Attributes & ~(FieldAttributes.FieldAccessMask | hasXAttributes), fieldAttributes);
+			if (field.HasMarshalInfo) {
+				WriteMarshalInfo(field.MarshalInfo);
+			}
 			field.FieldType.WriteTo(output);
 			output.Write(' ');
 			output.Write(DisassemblerHelpers.Escape(field.Name));
+			if ((field.Attributes & FieldAttributes.HasFieldRVA) == FieldAttributes.HasFieldRVA) {
+				output.Write(" at I_{0:x8}", field.RVA);
+			}
 			if (field.HasConstant) {
 				output.Write(" = ");
-				DisassemblerHelpers.WriteOperand(output, field.Constant);
+				WriteConstant(field.Constant);
 			}
+			output.WriteLine();
 			if (field.HasCustomAttributes) {
-				OpenBlock(false);
+				output.MarkFoldStart();
 				WriteAttributes(field.CustomAttributes);
-				CloseBlock();
-			} else {
-				output.WriteLine();
+				output.MarkFoldEnd();
 			}
 		}
 		#endregion
@@ -219,17 +714,33 @@ namespace ICSharpCode.Decompiler.Disassembler
 		
 		public void DisassembleProperty(PropertyDefinition property)
 		{
+			// set current member
+			currentMember = property;
+			
 			output.WriteDefinition(".property ", property);
 			WriteFlags(property.Attributes, propertyAttributes);
+			if (property.HasThis)
+				output.Write("instance ");
 			property.PropertyType.WriteTo(output);
 			output.Write(' ');
 			output.Write(DisassemblerHelpers.Escape(property.Name));
+			
+			output.Write("(");
+			if (property.HasParameters) {
+				output.WriteLine();
+				output.Indent();
+				WriteParameters(property.Parameters);
+				output.Unindent();
+			}
+			output.Write(")");
+			
 			OpenBlock(false);
 			WriteAttributes(property.CustomAttributes);
 			WriteNestedMethod(".get", property.GetMethod);
 			WriteNestedMethod(".set", property.SetMethod);
+			
 			foreach (var method in property.OtherMethods) {
-				WriteNestedMethod(".method", method);
+				WriteNestedMethod(".other", method);
 			}
 			CloseBlock();
 		}
@@ -238,17 +749,11 @@ namespace ICSharpCode.Decompiler.Disassembler
 		{
 			if (method == null)
 				return;
-			if (detectControlStructure) {
-				output.WriteDefinition(keyword, method);
-				output.Write(' ');
-				DisassembleMethodInternal(method);
-			} else {
 			output.Write(keyword);
 			output.Write(' ');
 			method.WriteTo(output);
 			output.WriteLine();
 		}
-		}
 		#endregion
 		
 		#region Disassemble Event
@@ -259,18 +764,21 @@ namespace ICSharpCode.Decompiler.Disassembler
 		
 		public void DisassembleEvent(EventDefinition ev)
 		{
+			// set current member
+			currentMember = ev;
+			
 			output.WriteDefinition(".event ", ev);
 			WriteFlags(ev.Attributes, eventAttributes);
-			ev.EventType.WriteTo(output);
+			ev.EventType.WriteTo(output, ILNameSyntax.TypeName);
 			output.Write(' ');
 			output.Write(DisassemblerHelpers.Escape(ev.Name));
 			OpenBlock(false);
 			WriteAttributes(ev.CustomAttributes);
-			WriteNestedMethod(".add", ev.AddMethod);
-			WriteNestedMethod(".remove", ev.RemoveMethod);
-			WriteNestedMethod(".invoke", ev.InvokeMethod);
+			WriteNestedMethod(".addon", ev.AddMethod);
+			WriteNestedMethod(".removeon", ev.RemoveMethod);
+			WriteNestedMethod(".fire", ev.InvokeMethod);
 			foreach (var method in ev.OtherMethods) {
-				WriteNestedMethod(".method", method);
+				WriteNestedMethod(".other", method);
 			}
 			CloseBlock();
 		}
@@ -312,6 +820,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 		
 		public void DisassembleType(TypeDefinition type)
 		{
+			// start writing IL
 			output.WriteDefinition(".class ", type);
 			
 			if ((type.Attributes & TypeAttributes.ClassSemanticMask) == TypeAttributes.Interface)
@@ -322,14 +831,15 @@ namespace ICSharpCode.Decompiler.Disassembler
 			const TypeAttributes masks = TypeAttributes.ClassSemanticMask | TypeAttributes.VisibilityMask | TypeAttributes.LayoutMask | TypeAttributes.StringFormatMask;
 			WriteFlags(type.Attributes & ~masks, typeAttributes);
 			
-			output.Write(DisassemblerHelpers.Escape(type.Name));
+			output.Write(DisassemblerHelpers.Escape(type.DeclaringType != null ? type.Name : type.FullName));
+			WriteTypeParameters(output, type);
 			output.MarkFoldStart(defaultCollapsed: isInType);
 			output.WriteLine();
 			
 			if (type.BaseType != null) {
 				output.Indent();
 				output.Write("extends ");
-				type.BaseType.WriteTo(output, true);
+				type.BaseType.WriteTo(output, ILNameSyntax.TypeName);
 				output.WriteLine();
 				output.Unindent();
 			}
@@ -342,9 +852,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 						output.Write("implements ");
 					else
 						output.Write("           ");
-					if (type.Interfaces[index].Namespace != null)
-						output.Write("{0}.", type.Interfaces[index].Namespace);
-					output.Write(type.Interfaces[index].Name);
+					type.Interfaces[index].WriteTo(output, ILNameSyntax.TypeName);
 				}
 				output.WriteLine();
 				output.Unindent();
@@ -355,6 +863,7 @@ namespace ICSharpCode.Decompiler.Disassembler
 			bool oldIsInType = isInType;
 			isInType = true;
 			WriteAttributes(type.CustomAttributes);
+			WriteSecurityDeclarations(type);
 			if (type.HasLayoutInfo) {
 				output.WriteLine(".pack {0}", type.PackingSize);
 				output.WriteLine(".size {0}", type.ClassSize);
@@ -377,14 +886,14 @@ namespace ICSharpCode.Decompiler.Disassembler
 				}
 				output.WriteLine();
 			}
-			if (type.HasProperties) {
-				output.WriteLine("// Properties");
-				foreach (var prop in type.Properties) {
+			if (type.HasMethods) {
+				output.WriteLine("// Methods");
+				foreach (var m in type.Methods) {
 					cancellationToken.ThrowIfCancellationRequested();
-					DisassembleProperty(prop);
-				}
+					DisassembleMethod(m);
 					output.WriteLine();
 				}
+			}
 			if (type.HasEvents) {
 				output.WriteLine("// Events");
 				foreach (var ev in type.Events) {
@@ -394,19 +903,52 @@ namespace ICSharpCode.Decompiler.Disassembler
 				}
 				output.WriteLine();
 			}
-			if (type.HasMethods) {
-				output.WriteLine("// Methods");
-				var accessorMethods = type.GetAccessorMethods();
-				foreach (var m in type.Methods) {
+			if (type.HasProperties) {
+				output.WriteLine("// Properties");
+				foreach (var prop in type.Properties) {
 					cancellationToken.ThrowIfCancellationRequested();
-					if (!(detectControlStructure && accessorMethods.Contains(m))) {
-						DisassembleMethod(m);
+					DisassembleProperty(prop);
+				}
 				output.WriteLine();
 			}
+			CloseBlock("end of class " + (type.DeclaringType != null ? type.Name : type.FullName));
+			isInType = oldIsInType;
 		}
+		
+		void WriteTypeParameters(ITextOutput output, IGenericParameterProvider p)
+		{
+			if (p.HasGenericParameters) {
+				output.Write('<');
+				for (int i = 0; i < p.GenericParameters.Count; i++) {
+					if (i > 0)
+						output.Write(", ");
+					GenericParameter gp = p.GenericParameters[i];
+					if (gp.HasReferenceTypeConstraint) {
+						output.Write("class ");
+					} else if (gp.HasNotNullableValueTypeConstraint) {
+						output.Write("valuetype ");
+					}
+					if (gp.HasDefaultConstructorConstraint) {
+						output.Write(".ctor ");
+					}
+					if (gp.HasConstraints) {
+						output.Write('(');
+						for (int j = 0; j < gp.Constraints.Count; j++) {
+							if (j > 0)
+								output.Write(", ");
+							gp.Constraints[j].WriteTo(output, ILNameSyntax.TypeName);
+						}
+						output.Write(") ");
+					}
+					if (gp.IsContravariant) {
+						output.Write('-');
+					} else if (gp.IsCovariant) {
+						output.Write('+');
+					}
+					output.Write(DisassemblerHelpers.Escape(gp.Name));
+				}
+				output.Write('>');
 			}
-			CloseBlock("End of class " + type.FullName);
-			isInType = oldIsInType;
 		}
 		#endregion
 
@@ -540,9 +1082,12 @@ namespace ICSharpCode.Decompiler.Disassembler
 		{
 			output.Write(".assembly " + DisassemblerHelpers.Escape(asm.Name.Name));
 			OpenBlock(false);
-			Version v = asm.Name.Version;
-			if (v != null) {
-				output.WriteLine(".ver {0}:{1}:{2}:{3}", v.Major, v.Minor, v.Build, v.Revision);
+			WriteAttributes(asm.CustomAttributes);
+			WriteSecurityDeclarations(asm);
+			if (asm.Name.PublicKey != null && asm.Name.PublicKey.Length > 0) {
+				output.Write(".publickey = ");
+				WriteBlob(asm.Name.PublicKey);
+				output.WriteLine();
 			}
 			if (asm.Name.HashAlgorithm != AssemblyHashAlgorithm.None) {
 				output.Write(".hash algorithm 0x{0:x8}", (int)asm.Name.HashAlgorithm);
@@ -550,13 +1095,64 @@ namespace ICSharpCode.Decompiler.Disassembler
 					output.Write(" // SHA1");
 				output.WriteLine();
 			}
-			if (asm.Name.PublicKey != null && asm.Name.PublicKey.Length > 0) {
-				output.Write(".publickey = ");
-				WriteBlob(asm.Name.PublicKey);
+			Version v = asm.Name.Version;
+			if (v != null) {
+				output.WriteLine(".ver {0}:{1}:{2}:{3}", v.Major, v.Minor, v.Build, v.Revision);
+			}
+			CloseBlock();
+		}
+		
+		public void WriteAssemblyReferences(ModuleDefinition module)
+		{
+			foreach (var mref in module.ModuleReferences) {
+				output.WriteLine(".module extern {0}", DisassemblerHelpers.Escape(mref.Name));
+			}
+			foreach (var aref in module.AssemblyReferences) {
+				output.Write(".assembly extern {0}", DisassemblerHelpers.Escape(aref.Name));
+				OpenBlock(false);
+				if (aref.PublicKeyToken != null) {
+					output.Write(".publickeytoken = ");
+					WriteBlob(aref.PublicKeyToken);
 					output.WriteLine();
 				}
-			WriteAttributes(asm.CustomAttributes);
+				if (aref.Version != null) {
+					output.WriteLine(".ver {0}:{1}:{2}:{3}", aref.Version.Major, aref.Version.Minor, aref.Version.Build, aref.Version.Revision);
+				}
 				CloseBlock();
 			}
 		}
+		
+		public void WriteModuleHeader(ModuleDefinition module)
+		{
+			if (module.HasExportedTypes) {
+				foreach (ExportedType exportedType in module.ExportedTypes) {
+					output.Write(".class extern ");
+					if (exportedType.IsForwarder)
+						output.Write("forwarder ");
+					output.Write(exportedType.DeclaringType != null ? exportedType.Name : exportedType.FullName);
+					OpenBlock(false);
+					if (exportedType.DeclaringType != null)
+						output.WriteLine(".class extern {0}", DisassemblerHelpers.Escape(exportedType.DeclaringType.FullName));
+					else
+						output.WriteLine(".assembly extern {0}", DisassemblerHelpers.Escape(exportedType.Scope.Name));
+					CloseBlock();
+				}
+			}
+			
+			output.WriteLine(".module {0}", module.Name);
+			output.WriteLine("// MVID: {0}", module.Mvid.ToString("B").ToUpperInvariant());
+			// TODO: imagebase, file alignment, stackreserve, subsystem
+			output.WriteLine(".corflags 0x{0:x} // {1}", module.Attributes, module.Attributes.ToString());
+			
+			WriteAttributes(module.CustomAttributes);
+		}
+		
+		public void WriteModuleContents(ModuleDefinition module)
+		{
+			foreach (TypeDefinition td in module.Types) {
+				DisassembleType(td);
+				output.WriteLine();
+			}
+		}
+	}
 }

src/Libraries/ICSharpCode.Decompiler/ICSharpCode.Decompiler.csproj

@@ -64,6 +64,7 @@
     <Compile Include="Ast\Transforms\CombineQueryExpressions.cs" />
     <Compile Include="Ast\Transforms\ContextTrackingVisitor.cs" />
     <Compile Include="Ast\Transforms\ConvertConstructorCallIntoInitializer.cs" />
+    <Compile Include="Ast\Transforms\DecimalConstantTransform.cs" />
     <Compile Include="Ast\Transforms\DeclareVariables.cs" />
     <Compile Include="Ast\Transforms\DelegateConstruction.cs" />
     <Compile Include="Ast\Transforms\IntroduceExtensionMethods.cs" />
@@ -76,6 +77,7 @@
     <Compile Include="Ast\Transforms\PatternStatementTransform.cs" />
     <Compile Include="Ast\TypesHierarchyHelpers.cs" />
     <Compile Include="CecilExtensions.cs" />
+    <Compile Include="CodeMappings.cs" />
     <Compile Include="DecompilerException.cs" />
     <Compile Include="DecompilerSettings.cs" />
     <Compile Include="Disassembler\DisassemblerHelpers.cs" />
@@ -112,6 +114,7 @@
     <Compile Include="ILAst\YieldReturnDecompiler.cs" />
     <Compile Include="ITextOutput.cs" />
     <Compile Include="PlainTextOutput.cs" />
+    <Compile Include="ReferenceResolvingException.cs" />
     <Compile Include="TextOutputWriter.cs" />
 	<None Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
@@ -119,7 +122,6 @@
     <ProjectReference Include="..\Mono.Cecil\Mono.Cecil.csproj">
       <Project>{D68133BD-1E63-496E-9EDE-4FBDBF77B486}</Project>
       <Name>Mono.Cecil</Name>
-      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\NewNRefactory\ICSharpCode.NRefactory\ICSharpCode.NRefactory.csproj">
       <Project>{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}</Project>

src/Libraries/ICSharpCode.Decompiler/ILAst/DefaultDictionary.cs

@@ -1,9 +1,20 @@
-// <file>
-//     <copyright see="prj:///doc/copyright.txt"/>
-//     <license see="prj:///doc/license.txt"/>
-//     <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
-//     <version>$Revision$</version>
-// </file>
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections;

src/Libraries/ICSharpCode.Decompiler/ILAst/GotoRemoval.cs

@@ -1,4 +1,22 @@
-using System;
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Diagnostics;
 using System.IO;
 using System.Collections.Generic;
@@ -73,17 +91,34 @@ namespace ICSharpCode.Decompiler.ILAst
 					}
 				}
 				
-				var defaultCase = ilSwitch.CaseBlocks.Where(cb => cb.Values == null).SingleOrDefault();
+				var defaultCase = ilSwitch.CaseBlocks.SingleOrDefault(cb => cb.Values == null);
 				// If there is no default block, remove empty case blocks
 				if (defaultCase == null || (defaultCase.Body.Count == 1 && defaultCase.Body.Single().Match(ILCode.LoopOrSwitchBreak))) {
 					ilSwitch.CaseBlocks.RemoveAll(b => b.Body.Count == 1 && b.Body.Single().Match(ILCode.LoopOrSwitchBreak));
 				}
 			}
 			
-			// Remove redundant return
+			// Remove redundant return at the end of method
 			if (method.Body.Count > 0 && method.Body.Last().Match(ILCode.Ret) && ((ILExpression)method.Body.Last()).Arguments.Count == 0) {
 				method.Body.RemoveAt(method.Body.Count - 1);
 			}
+			
+			// Remove unreachable return statements
+			bool modified = false;
+			foreach(ILBlock block in method.GetSelfAndChildrenRecursive<ILBlock>()) {
+				for (int i = 0; i < block.Body.Count - 1;) {
+					if (block.Body[i].IsUnconditionalControlFlow() && block.Body[i+1].Match(ILCode.Ret)) {
+						modified = true;
+						block.Body.RemoveAt(i+1);
+					} else {
+						i++;
+					}
+				}
+			}
+			if (modified) {
+				// More removals might be possible
+				new GotoRemoval().RemoveGotos(method);
+			}
 		}
 		
 		IEnumerable<ILNode> GetParents(ILNode node)
@@ -122,14 +157,14 @@ namespace ICSharpCode.Decompiler.ILAst
 				return true;
 			}
 			
-			ILNode breakBlock = GetParents(gotoExpr).Where(n => n is ILWhileLoop || n is ILSwitch).FirstOrDefault();
+			ILNode breakBlock = GetParents(gotoExpr).FirstOrDefault(n => n is ILWhileLoop || n is ILSwitch);
 			if (breakBlock != null && target == Exit(breakBlock, new HashSet<ILNode>() { gotoExpr })) {
 				gotoExpr.Code = ILCode.LoopOrSwitchBreak;
 				gotoExpr.Operand = null;
 				return true;
 			}
 			
-			ILNode continueBlock = GetParents(gotoExpr).Where(n => n is ILWhileLoop).FirstOrDefault();
+			ILNode continueBlock = GetParents(gotoExpr).FirstOrDefault(n => n is ILWhileLoop);
 			if (continueBlock != null && target == Enter(continueBlock, new HashSet<ILNode>() { gotoExpr })) {
 				gotoExpr.Code = ILCode.LoopContinue;
 				gotoExpr.Operand = null;
@@ -191,10 +226,10 @@ namespace ICSharpCode.Decompiler.ILAst
 				} else if (expr.Code == ILCode.Nop) {
 					return Exit(expr, visitedNodes);
 				} else if (expr.Code == ILCode.LoopOrSwitchBreak) {
-					ILNode breakBlock = GetParents(expr).Where(n => n is ILWhileLoop || n is ILSwitch).First();
+					ILNode breakBlock = GetParents(expr).First(n => n is ILWhileLoop || n is ILSwitch);
 					return Exit(breakBlock, new HashSet<ILNode>() { expr });
 				} else if (expr.Code == ILCode.LoopContinue) {
-					ILNode continueBlock = GetParents(expr).Where(n => n is ILWhileLoop).First();
+					ILNode continueBlock = GetParents(expr).First(n => n is ILWhileLoop);
 					return Enter(continueBlock, new HashSet<ILNode>() { expr });
 				} else {
 					return expr;

src/Libraries/ICSharpCode.Decompiler/ILAst/ILAstBuilder.cs

@@ -1,7 +1,27 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+
 using Mono.Cecil;
 using Mono.Cecil.Cil;
 using Cecil = Mono.Cecil;
@@ -261,6 +281,8 @@ namespace ICSharpCode.Decompiler.ILAst
 			
 			int varCount = methodDef.Body.Variables.Count;
 			
+			var exceptionHandlerStarts = new HashSet<ByteCode>(methodDef.Body.ExceptionHandlers.Select(eh => instrToByteCode[eh.HandlerStart]));
+			
 			// Add known states
 			if(methodDef.Body.HasExceptionHandlers) {
 				foreach(ExceptionHandler ex in methodDef.Body.ExceptionHandlers) {
@@ -327,8 +349,13 @@ namespace ICSharpCode.Decompiler.ILAst
 				// Find all successors
 				List<ByteCode> branchTargets = new List<ByteCode>();
 				if (!byteCode.Code.IsUnconditionalControlFlow()) {
+					if (exceptionHandlerStarts.Contains(byteCode.Next)) {
+						// Do not fall though down to exception handler
+						// It is invalid IL as per ECMA-335 §12.4.2.8.1, but some obfuscators produce it						
+					} else {
 						branchTargets.Add(byteCode.Next);
 					}
+				}
 				if (byteCode.Operand is Instruction[]) {
 					foreach(Instruction inst in (Instruction[])byteCode.Operand) {
 						ByteCode target = instrToByteCode[inst];
@@ -406,13 +433,12 @@ namespace ICSharpCode.Decompiler.ILAst
 				}
 			}
 			
-			// Occasionally the compiler generates unreachable code - it can be usually just ignored
-			var reachableBody   = body.Where(b => b.StackBefore != null);
-			var unreachableBody = body.Where(b => b.StackBefore == null);
+			// Occasionally the compilers or obfuscators generate unreachable code (which migt be intentonally invalid)
+			// I belive it is safe to just remove it
+			body.RemoveAll(b => b.StackBefore == null);
 			
 			// Genertate temporary variables to replace stack
-			// Unrachable code does not need temporary variables - the values are never pushed on the stack for consuption
-			foreach(ByteCode byteCode in reachableBody) {
+			foreach(ByteCode byteCode in body) {
 				int argIdx = 0;
 				int popCount = byteCode.PopCount ?? byteCode.StackBefore.Count;
 				for (int i = byteCode.StackBefore.Count - popCount; i < byteCode.StackBefore.Count; i++) {
@@ -430,19 +456,18 @@ namespace ICSharpCode.Decompiler.ILAst
 			
 			// Try to use single temporary variable insted of several if possilbe (especially useful for dup)
 			// This has to be done after all temporary variables are assigned so we know about all loads
-			// Unrachable code will not have any StoreTo
-			foreach(ByteCode byteCode in reachableBody) {
+			foreach(ByteCode byteCode in body) {
 				if (byteCode.StoreTo != null && byteCode.StoreTo.Count > 1) {
 					var locVars = byteCode.StoreTo;
 					// For each of the variables, find the location where it is loaded - there should be preciesly one
-					var loadedBy = locVars.Select(locVar => reachableBody.SelectMany(bc => bc.StackBefore).Where(s => s.LoadFrom == locVar).Single()).ToList();
+					var loadedBy = locVars.Select(locVar => body.SelectMany(bc => bc.StackBefore).Single(s => s.LoadFrom == locVar)).ToList();
 					// We now know that all the variables have a single load,
 					// Let's make sure that they have also a single store - us
 					if (loadedBy.All(slot => slot.PushedBy.Length == 1 && slot.PushedBy[0] == byteCode)) {
 						// Great - we can reduce everything into single variable
 						ILVariable tmpVar = new ILVariable() { Name = string.Format("expr_{0:X2}", byteCode.Offset), IsGenerated = true };
 						byteCode.StoreTo = new List<ILVariable>() { tmpVar };
-						foreach(ByteCode bc in reachableBody) {
+						foreach(ByteCode bc in body) {
 							for (int i = 0; i < bc.StackBefore.Count; i++) {
 								// Is it one of the variable to be merged?
 								if (locVars.Contains(bc.StackBefore[i].LoadFrom)) {
@@ -552,7 +577,7 @@ namespace ICSharpCode.Decompiler.ILAst
 								    Loads  = new List<ByteCode>() { load }
 								});
 							} else if (storedBy.Length == 1) {
-								VariableInfo newVar = newVars.Where(v => v.Stores.Contains(storedBy[0])).Single();
+								VariableInfo newVar = newVars.Single(v => v.Stores.Contains(storedBy[0]));
 								newVar.Loads.Add(load);
 							} else {
 								List<VariableInfo> mergeVars = newVars.Where(v => v.Stores.Union(storedBy).Any()).ToList();
@@ -638,12 +663,14 @@ namespace ICSharpCode.Decompiler.ILAst
 				// Find the first and widest scope
 				int tryStart = ehs.Min(eh => eh.TryStart.Offset);
 				int tryEnd   = ehs.Where(eh => eh.TryStart.Offset == tryStart).Max(eh => eh.TryEnd.Offset);
-				var handlers = ehs.Where(eh => eh.TryStart.Offset == tryStart && eh.TryEnd.Offset == tryEnd).ToList();
+				var handlers = ehs.Where(eh => eh.TryStart.Offset == tryStart && eh.TryEnd.Offset == tryEnd).OrderBy(eh => eh.TryStart.Offset).ToList();
+				
+				// Remember that any part of the body migt have been removed due to unreachability
 				
 				// Cut all instructions up to the try block
 				{
-					int tryStartIdx;
-					for (tryStartIdx = 0; body[tryStartIdx].Offset != tryStart; tryStartIdx++);
+					int tryStartIdx = 0;
+					while (tryStartIdx < body.Count && body[tryStartIdx].Offset < tryStart) tryStartIdx++;
 					ast.AddRange(ConvertToAst(body.CutRange(0, tryStartIdx)));
 				}
 				
@@ -651,24 +678,22 @@ namespace ICSharpCode.Decompiler.ILAst
 				{
 					HashSet<ExceptionHandler> nestedEHs = new HashSet<ExceptionHandler>(ehs.Where(eh => (tryStart <= eh.TryStart.Offset && eh.TryEnd.Offset < tryEnd) || (tryStart < eh.TryStart.Offset && eh.TryEnd.Offset <= tryEnd)));
 					ehs.ExceptWith(nestedEHs);
-					int tryEndIdx;
-					for (tryEndIdx = 0; tryEndIdx < body.Count && body[tryEndIdx].Offset != tryEnd; tryEndIdx++);
+					int tryEndIdx = 0;
+					while (tryEndIdx < body.Count && body[tryEndIdx].Offset < tryEnd) tryEndIdx++;
 					tryCatchBlock.TryBlock = new ILBlock(ConvertToAst(body.CutRange(0, tryEndIdx), nestedEHs));
 				}
 				
 				// Cut all handlers
 				tryCatchBlock.CatchBlocks = new List<ILTryCatchBlock.CatchBlock>();
 				foreach(ExceptionHandler eh in handlers) {
-					int startIndex;
-					for (startIndex = 0; body[startIndex].Offset != eh.HandlerStart.Offset; startIndex++);
-					int endInclusiveIndex;
-					if (eh.HandlerEnd == null) endInclusiveIndex = body.Count - 1;
-					// Note that the end(exclusive) instruction may not necessarly be in our body
-					else for (endInclusiveIndex = 0; body[endInclusiveIndex].Next.Offset != eh.HandlerEnd.Offset; endInclusiveIndex++);
-					int count = 1 + endInclusiveIndex - startIndex;
-					HashSet<ExceptionHandler> nestedEHs = new HashSet<ExceptionHandler>(ehs.Where(e => (eh.HandlerStart.Offset <= e.TryStart.Offset && e.TryEnd.Offset < eh.HandlerEnd.Offset) || (eh.HandlerStart.Offset < e.TryStart.Offset && e.TryEnd.Offset <= eh.HandlerEnd.Offset)));
+					int handlerEndOffset = eh.HandlerEnd == null ? methodDef.Body.CodeSize : eh.HandlerEnd.Offset;
+					int startIdx = 0;
+					while (startIdx < body.Count && body[startIdx].Offset < eh.HandlerStart.Offset) startIdx++;
+					int endIdx = 0;
+					while (endIdx < body.Count && body[endIdx].Offset < handlerEndOffset) endIdx++;
+					HashSet<ExceptionHandler> nestedEHs = new HashSet<ExceptionHandler>(ehs.Where(e => (eh.HandlerStart.Offset <= e.TryStart.Offset && e.TryEnd.Offset < handlerEndOffset) || (eh.HandlerStart.Offset < e.TryStart.Offset && e.TryEnd.Offset <= handlerEndOffset)));
 					ehs.ExceptWith(nestedEHs);
-					List<ILNode> handlerAst = ConvertToAst(body.CutRange(startIndex, count), nestedEHs);
+					List<ILNode> handlerAst = ConvertToAst(body.CutRange(startIdx, endIdx - startIdx), nestedEHs);
 					if (eh.HandlerType == ExceptionHandlerType.Catch) {
 						ILTryCatchBlock.CatchBlock catchBlock = new ILTryCatchBlock.CatchBlock() {
 							ExceptionType = eh.CatchType,

src/Libraries/ICSharpCode.Decompiler/ILAst/ILAstOptimizer.cs

@@ -1,3 +1,21 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -24,19 +42,24 @@ namespace ICSharpCode.Decompiler.ILAst
 		SimplifyTernaryOperator,
 		SimplifyNullCoalescing,
 		JoinBasicBlocks,
+		SimplifyShiftOperators,
 		TransformDecimalCtorToConstant,
 		SimplifyLdObjAndStObj,
+		SimplifyCustomShortCircuit,
 		TransformArrayInitializers,
-		TransformCollectionInitializers,
+		TransformMultidimensionalArrayInitializers,
+		TransformObjectInitializers,
 		MakeAssignmentExpression,
 		IntroducePostIncrement,
 		InlineVariables2,
 		FindLoops,
 		FindConditions,
 		FlattenNestedMovableBlocks,
+		RemoveEndFinally,
 		RemoveRedundantCode2,
 		GotoRemoval,
 		DuplicateReturns,
+		GotoRemoval2,
 		ReduceIfNesting,
 		InlineVariables3,
 		CachedDelegateInitialization,
@@ -111,6 +134,9 @@ namespace ICSharpCode.Decompiler.ILAst
 					if (abortBeforeStep == ILAstOptimizationStep.JoinBasicBlocks) return;
 					modified |= block.RunOptimization(new SimpleControlFlow(context, method).JoinBasicBlocks);
 
+					if (abortBeforeStep == ILAstOptimizationStep.SimplifyShiftOperators) return;
+					modified |= block.RunOptimization(SimplifyShiftOperators);
+
 					if (abortBeforeStep == ILAstOptimizationStep.TransformDecimalCtorToConstant) return;
 					modified |= block.RunOptimization(TransformDecimalCtorToConstant);
 					modified |= block.RunOptimization(SimplifyLdcI4ConvI8);
@@ -118,11 +144,17 @@ namespace ICSharpCode.Decompiler.ILAst
 					if (abortBeforeStep == ILAstOptimizationStep.SimplifyLdObjAndStObj) return;
 					modified |= block.RunOptimization(SimplifyLdObjAndStObj);
 					
+					if (abortBeforeStep == ILAstOptimizationStep.SimplifyCustomShortCircuit) return;
+					modified |= block.RunOptimization(new SimpleControlFlow(context, method).SimplifyCustomShortCircuit);
+					
 					if (abortBeforeStep == ILAstOptimizationStep.TransformArrayInitializers) return;
-					modified |= block.RunOptimization(Initializers.TransformArrayInitializers);
+					modified |= block.RunOptimization(TransformArrayInitializers);
+
+					if (abortBeforeStep == ILAstOptimizationStep.TransformMultidimensionalArrayInitializers) return;
+					modified |= block.RunOptimization(TransformMultidimensionalArrayInitializers);
 					
-					if (abortBeforeStep == ILAstOptimizationStep.TransformCollectionInitializers) return;
-					modified |= block.RunOptimization(Initializers.TransformCollectionInitializers);
+					if (abortBeforeStep == ILAstOptimizationStep.TransformObjectInitializers) return;
+					modified |= block.RunOptimization(TransformObjectInitializers);
 					
 					if (abortBeforeStep == ILAstOptimizationStep.MakeAssignmentExpression) return;
 					modified |= block.RunOptimization(MakeAssignmentExpression);
@@ -151,6 +183,9 @@ namespace ICSharpCode.Decompiler.ILAst
 			if (abortBeforeStep == ILAstOptimizationStep.FlattenNestedMovableBlocks) return;
 			FlattenBasicBlocks(method);
 			
+			if (abortBeforeStep == ILAstOptimizationStep.RemoveEndFinally) return;
+			RemoveEndFinally(method);
+			
 			if (abortBeforeStep == ILAstOptimizationStep.RemoveRedundantCode2) return;
 			RemoveRedundantCode(method);
 			
@@ -160,6 +195,9 @@ namespace ICSharpCode.Decompiler.ILAst
 			if (abortBeforeStep == ILAstOptimizationStep.DuplicateReturns) return;
 			DuplicateReturnStatements(method);
 			
+			if (abortBeforeStep == ILAstOptimizationStep.GotoRemoval2) return;
+			new GotoRemoval().RemoveGotos(method);
+			
 			if (abortBeforeStep == ILAstOptimizationStep.ReduceIfNesting) return;
 			ReduceIfNesting(method);
 			
@@ -290,10 +328,31 @@ namespace ICSharpCode.Decompiler.ILAst
 		/// Converts call and callvirt instructions that read/write properties into CallGetter/CallSetter instructions.
 		/// 
 		/// CallGetter/CallSetter is used to allow the ILAst to represent "while ((SomeProperty = value) != null)".
+		/// 
+		/// Also simplifies 'newobj(SomeDelegate, target, ldvirtftn(F, target))' to 'newobj(SomeDelegate, target, ldvirtftn(F))'
 		/// </summary>
-		void IntroducePropertyAccessInstructions(ILBlock method)
+		void IntroducePropertyAccessInstructions(ILNode node)
+		{
+			ILExpression parentExpr = node as ILExpression;
+			if (parentExpr != null) {
+				for (int i = 0; i < parentExpr.Arguments.Count; i++) {
+					ILExpression expr = parentExpr.Arguments[i];
+					IntroducePropertyAccessInstructions(expr);
+					IntroducePropertyAccessInstructions(expr, parentExpr, i);
+				}
+			} else {
+				foreach (ILNode child in node.GetChildren()) {
+					IntroducePropertyAccessInstructions(child);
+					ILExpression expr = child as ILExpression;
+					if (expr != null) {
+						IntroducePropertyAccessInstructions(expr, null, -1);
+					}
+				}
+			}
+		}
+		
+		void IntroducePropertyAccessInstructions(ILExpression expr, ILExpression parentExpr, int posInParent)
 		{
-			foreach (ILExpression expr in method.GetSelfAndChildrenRecursive<ILExpression>()) {
 			if (expr.Code == ILCode.Call || expr.Code == ILCode.Callvirt) {
 				MethodReference cecilMethod = (MethodReference)expr.Operand;
 				if (cecilMethod.DeclaringType is ArrayType) {
@@ -305,8 +364,18 @@ namespace ICSharpCode.Decompiler.ILAst
 							expr.Code = ILCode.CallSetter;
 							break;
 						case "Address":
+							ByReferenceType brt = cecilMethod.ReturnType as ByReferenceType;
+							if (brt != null) {
+								MethodReference getMethod = new MethodReference("Get", brt.ElementType, cecilMethod.DeclaringType);
+								foreach (var p in cecilMethod.Parameters)
+									getMethod.Parameters.Add(p);
+								getMethod.HasThis = cecilMethod.HasThis;
+								expr.Operand = getMethod;
+							}
 							expr.Code = ILCode.CallGetter;
-								expr.AddPrefix(new ILExpressionPrefix(ILCode.PropertyAddress));
+							if (parentExpr != null) {
+								parentExpr.Arguments[posInParent] = new ILExpression(ILCode.AddressOf, null, expr);
+							}
 							break;
 					}
 				} else {
@@ -318,6 +387,18 @@ namespace ICSharpCode.Decompiler.ILAst
 							expr.Code = (expr.Code == ILCode.Call) ? ILCode.CallSetter : ILCode.CallvirtSetter;
 					}
 				}
+			} else if (expr.Code == ILCode.Newobj && expr.Arguments.Count == 2) {
+				// Might be 'newobj(SomeDelegate, target, ldvirtftn(F, target))'.
+				ILVariable target;
+				if (expr.Arguments[0].Match(ILCode.Ldloc, out target)
+				    && expr.Arguments[1].Code == ILCode.Ldvirtftn
+				    && expr.Arguments[1].Arguments.Count == 1
+				    && expr.Arguments[1].Arguments[0].MatchLdloc(target))
+				{
+					// Remove the 'target' argument from the ldvirtftn instruction.
+					// It's not needed in the translation to C#, and needs to be eliminated so that the target expression
+					// can be inlined.
+					expr.Arguments[1].Arguments.Clear();
 				}
 			}
 		}
@@ -352,7 +433,7 @@ namespace ICSharpCode.Decompiler.ILAst
 					    lastNode.IsUnconditionalControlFlow())
 					{
 						// Try to reuse the label
-						ILLabel label = currNode is ILLabel ? ((ILLabel)currNode) : new ILLabel() { Name = "Block_" + (nextLabelIndex++) };
+						ILLabel label = currNode as ILLabel ?? new ILLabel() { Name = "Block_" + (nextLabelIndex++).ToString() };
 						
 						// Terminate the last block
 						if (!lastNode.IsUnconditionalControlFlow()) {
@@ -461,6 +542,25 @@ namespace ICSharpCode.Decompiler.ILAst
 			}
 		}
 		
+		/// <summary>
+		/// Replace endfinally with jump to the end of the finally block
+		/// </summary>
+		void RemoveEndFinally(ILBlock method)
+		{
+			// Go thought the list in reverse so that we do the nested blocks first
+			foreach(var tryCatch in method.GetSelfAndChildrenRecursive<ILTryCatchBlock>(tc => tc.FinallyBlock != null).Reverse()) {
+				ILLabel label = new ILLabel() { Name = "EndFinally_" + nextLabelIndex++ };
+				tryCatch.FinallyBlock.Body.Add(label);
+				foreach(var block in tryCatch.FinallyBlock.GetSelfAndChildrenRecursive<ILBlock>()) {
+					for (int i = 0; i < block.Body.Count; i++) {
+						if (block.Body[i].Match(ILCode.Endfinally)) {
+							block.Body[i] = new ILExpression(ILCode.Br, label).WithILRanges(((ILExpression)block.Body[i]).ILRanges);
+						}
+					}
+				}
+			}
+		}
+		
 		/// <summary>
 		/// Reduce the nesting of conditions.
 		/// It should be done on flat data that already had most gotos removed
@@ -510,16 +610,37 @@ namespace ICSharpCode.Decompiler.ILAst
 			// This ensures that a single IL variable is a single C# variable (gets assigned only one name)
 			// The DeclareVariables transformation might then split up the C# variable again if it is used indendently in two separate scopes.
 			Dictionary<VariableDefinition, ILVariable> dict = new Dictionary<VariableDefinition, ILVariable>();
-			foreach (ILExpression expr in method.GetSelfAndChildrenRecursive<ILExpression>()) {
-				ILVariable v = expr.Operand as ILVariable;
-				if (v != null && v.OriginalVariable != null) {
+			ReplaceVariables(
+				method,
+				delegate(ILVariable v) {
+					if (v.OriginalVariable == null)
+						return v;
 					ILVariable combinedVariable;
 					if (!dict.TryGetValue(v.OriginalVariable, out combinedVariable)) {
 						dict.Add(v.OriginalVariable, v);
 						combinedVariable = v;
 					}
-					expr.Operand = combinedVariable;
+					return combinedVariable;
+				});
 		}
+		
+		public static void ReplaceVariables(ILNode node, Func<ILVariable, ILVariable> variableMapping)
+		{
+			ILExpression expr = node as ILExpression;
+			if (expr != null) {
+				ILVariable v = expr.Operand as ILVariable;
+				if (v != null)
+					expr.Operand = variableMapping(v);
+				foreach (ILExpression child in expr.Arguments)
+					ReplaceVariables(child, variableMapping);
+			} else {
+				var catchBlock = node as ILTryCatchBlock.CatchBlock;
+				if (catchBlock != null && catchBlock.ExceptionVariable != null) {
+					catchBlock.ExceptionVariable = variableMapping(catchBlock.ExceptionVariable);
+				}
+				
+				foreach (ILNode child in node.GetChildren())
+					ReplaceVariables(child, variableMapping);
 			}
 		}
 		
@@ -648,15 +769,36 @@ namespace ICSharpCode.Decompiler.ILAst
 					// property getters can't be expression statements, but all other method calls can be
 					MethodReference mr = (MethodReference)expr.Operand;
 					return !mr.Name.StartsWith("get_", StringComparison.Ordinal);
+				case ILCode.CallSetter:
+				case ILCode.CallvirtSetter:
 				case ILCode.Newobj:
 				case ILCode.Newarr:
 				case ILCode.Stloc:
+				case ILCode.Stobj:
+				case ILCode.Stsfld:
+				case ILCode.Stfld:
+				case ILCode.Stind_Ref:
+				case ILCode.Stelem_Any:
+				case ILCode.Stelem_I:
+				case ILCode.Stelem_I1:
+				case ILCode.Stelem_I2:
+				case ILCode.Stelem_I4:
+				case ILCode.Stelem_I8:
+				case ILCode.Stelem_R4:
+				case ILCode.Stelem_R8:
+				case ILCode.Stelem_Ref:
 					return true;
 				default:
 					return false;
 			}
 		}
 		
+		public static ILExpression WithILRanges(this ILExpression expr, IEnumerable<ILRange> ilranges)
+		{
+			expr.ILRanges.AddRange(ilranges);
+			return expr;
+		}
+		
 		public static void RemoveTail(this List<ILNode> body, params ILCode[] codes)
 		{
 			for (int i = 0; i < codes.Length; i++) {

src/Libraries/ICSharpCode.Decompiler/ILAst/ILAstTypes.cs

@@ -1,3 +1,21 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -25,6 +43,7 @@ namespace ICSharpCode.Decompiler.ILAst
 		
 		void AccumulateSelfAndChildrenRecursive<T>(List<T> list, Func<T, bool> predicate) where T:ILNode
 		{
+			// Note: RemoveEndFinally depends on self coming before children
 			T thisAsT = this as T;
 			if (thisAsT != null && (predicate == null || predicate(thisAsT)))
 				list.Add(thisAsT);
@@ -123,6 +142,10 @@ namespace ICSharpCode.Decompiler.ILAst
 			{
 				output.Write("catch ");
 				output.WriteReference(ExceptionType.FullName, ExceptionType);
+				if (ExceptionVariable != null) {
+					output.Write(' ');
+					output.Write(ExceptionVariable.Name);
+				}
 				output.WriteLine(" {");
 				output.Indent();
 				base.WriteTo(output);
@@ -210,7 +233,10 @@ namespace ICSharpCode.Decompiler.ILAst
 		
 		public static List<ILRange> OrderAndJoint(IEnumerable<ILRange> input)
 		{
-			List<ILRange> ranges = input.OrderBy(r => r.From).ToList();
+			if (input == null)
+				throw new ArgumentNullException("Input is null!");
+			
+			List<ILRange> ranges = input.Where(r => r != null).OrderBy(r => r.From).ToList();
 			for (int i = 0; i < ranges.Count - 1;) {
 				ILRange curr = ranges[i];
 				ILRange next = ranges[i + 1];
@@ -227,6 +253,12 @@ namespace ICSharpCode.Decompiler.ILAst
 		
 		public static IEnumerable<ILRange> Invert(IEnumerable<ILRange> input, int codeSize)
 		{
+			if (input == null)
+				throw new ArgumentNullException("Input is null!");
+			
+			if (codeSize <= 0)
+				throw new ArgumentException("Code size must be grater than 0");
+			
 			var ordered = OrderAndJoint(input);
 			if (ordered.Count == 0) {
 				yield return new ILRange() { From = 0, To = codeSize };
@@ -351,10 +383,10 @@ namespace ICSharpCode.Decompiler.ILAst
 					output.Write(((ILVariable)Operand).Name);
 					if (this.InferredType != null) {
 						output.Write(':');
-						this.InferredType.WriteTo(output, true, true);
+						this.InferredType.WriteTo(output, ILNameSyntax.ShortTypeName);
 						if (this.ExpectedType != null && this.ExpectedType.FullName != this.InferredType.FullName) {
 							output.Write("[exp:");
-							this.ExpectedType.WriteTo(output, true, true);
+							this.ExpectedType.WriteTo(output, ILNameSyntax.ShortTypeName);
 							output.Write(']');
 						}
 					}
@@ -372,15 +404,15 @@ namespace ICSharpCode.Decompiler.ILAst
 			output.Write(Code.GetName());
 			if (this.InferredType != null) {
 				output.Write(':');
-				this.InferredType.WriteTo(output, true, true);
+				this.InferredType.WriteTo(output, ILNameSyntax.ShortTypeName);
 				if (this.ExpectedType != null && this.ExpectedType.FullName != this.InferredType.FullName) {
 					output.Write("[exp:");
-					this.ExpectedType.WriteTo(output, true, true);
+					this.ExpectedType.WriteTo(output, ILNameSyntax.ShortTypeName);
 					output.Write(']');
 				}
 			} else if (this.ExpectedType != null) {
 				output.Write("[exp:");
-				this.ExpectedType.WriteTo(output, true, true);
+				this.ExpectedType.WriteTo(output, ILNameSyntax.ShortTypeName);
 				output.Write(']');
 			}
 			output.Write('(');
@@ -397,12 +429,14 @@ namespace ICSharpCode.Decompiler.ILAst
 					}
 				} else if (Operand is MethodReference) {
 					MethodReference method = (MethodReference)Operand;
-					method.DeclaringType.WriteTo(output, true, true);
+					if (method.DeclaringType != null) {
+						method.DeclaringType.WriteTo(output, ILNameSyntax.ShortTypeName);
 						output.Write("::");
+					}
 					output.WriteReference(method.Name, method);
 				} else if (Operand is FieldReference) {
 					FieldReference field = (FieldReference)Operand;
-					field.DeclaringType.WriteTo(output, true, true);
+					field.DeclaringType.WriteTo(output, ILNameSyntax.ShortTypeName);
 					output.Write("::");
 					output.WriteReference(field.Name, field);
 				} else {

src/Libraries/ICSharpCode.Decompiler/ILAst/ILCodes.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using Mono.Cecil;
@@ -238,8 +253,18 @@ namespace ICSharpCode.Decompiler.ILAst
 		LogicOr,
 		NullCoalescing,
 		InitArray, // Array Initializer
-		InitCollection, // Collection Initializer: first arg is newobj, remaining args are InitCollectionAddMethod method calls
-		InitCollectionAddMethod,
+		
+		// new Class { Prop = 1, Collection = { { 2, 3 }, {4, 5} }}
+		// is represented as:
+		// InitObject(newobj Class,
+		//            CallSetter(Prop, InitializedObject, 1),
+		//            InitCollection(CallGetter(Collection, InitializedObject))),
+		//                           Call(Add, InitializedObject, 2, 3),
+		//                           Call(Add, InitializedObject, 4, 5)))
+		InitObject, // Object initializer: first arg is newobj/defaultvalue, remaining args are the initializing statements
+		InitCollection, // Collection initializer: first arg is newobj/defaultvalue, remaining args are the initializing statements
+		InitializedObject, // Refers the the object being initialized (refers to first arg in parent InitObject or InitCollection instruction)
+		
 		TernaryOp, // ?:
 		LoopOrSwitchBreak,
 		LoopContinue,
@@ -276,9 +301,12 @@ namespace ICSharpCode.Decompiler.ILAst
 		CallSetter,
 		/// <summary>Calls the setter of a instance property (or indexer)</summary>
 		CallvirtSetter,
-		/// <summary>Simulates getting the address of a property. Used as prefix on CallGetter or CallvirtGetter.</summary>
-		/// <remarks>Used for postincrement for properties, and to represent the Address() method on multi-dimensional arrays</remarks>
-		PropertyAddress
+		/// <summary>Simulates getting the address of the argument instruction.</summary>
+		/// <remarks>
+		/// Used for postincrement for properties, and to represent the Address() method on multi-dimensional arrays.
+		/// Also used when inlining a method call on a value type: "stloc(v, ...); call(M, ldloca(v));" becomes "call(M, AddressOf(...))"
+		/// </remarks>
+		AddressOf
 	}
 	
 	public static class ILCodeUtil

src/Libraries/ICSharpCode.Decompiler/ILAst/ILInlining.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -32,7 +47,13 @@ namespace ICSharpCode.Decompiler.ILAst
 			numLdloca.Clear();
 			
 			// Analyse the whole method
-			foreach(ILExpression expr in method.GetSelfAndChildrenRecursive<ILExpression>()) {
+			AnalyzeNode(method);
+		}
+		
+		void AnalyzeNode(ILNode node)
+		{
+			ILExpression expr = node as ILExpression;
+			if (expr != null) {
 				ILVariable locVar = expr.Operand as ILVariable;
 				if (locVar != null) {
 					if (expr.Code == ILCode.Stloc) {
@@ -45,6 +66,16 @@ namespace ICSharpCode.Decompiler.ILAst
 						throw new NotSupportedException(expr.Code.ToString());
 					}
 				}
+				foreach (ILExpression child in expr.Arguments)
+					AnalyzeNode(child);
+			} else {
+				var catchBlock = node as ILTryCatchBlock.CatchBlock;
+				if (catchBlock != null && catchBlock.ExceptionVariable != null) {
+					numStloc[catchBlock.ExceptionVariable] = numStloc.GetOrDefault(catchBlock.ExceptionVariable) + 1;
+				}
+				
+				foreach (ILNode child in node.GetChildren())
+					AnalyzeNode(child);
 			}
 		}
 		
@@ -61,6 +92,20 @@ namespace ICSharpCode.Decompiler.ILAst
 		{
 			bool modified = false;
 			List<ILNode> body = block.Body;
+			if (block is ILTryCatchBlock.CatchBlock && body.Count > 1) {
+				ILVariable v = ((ILTryCatchBlock.CatchBlock)block).ExceptionVariable;
+				if (v != null && v.IsGenerated) {
+					if (numLdloca.GetOrDefault(v) == 0 && numStloc.GetOrDefault(v) == 1 && numLdloc.GetOrDefault(v) == 1) {
+						ILVariable v2;
+						ILExpression ldException;
+						if (body[0].Match(ILCode.Stloc, out v2, out ldException) && ldException.MatchLdloc(v)) {
+							body.RemoveAt(0);
+							((ILTryCatchBlock.CatchBlock)block).ExceptionVariable = v2;
+							modified = true;
+						}
+					}
+				}
+			}
 			for(int i = 0; i < body.Count - 1;) {
 				ILVariable locVar;
 				ILExpression expr;
@@ -169,7 +214,10 @@ namespace ICSharpCode.Decompiler.ILAst
 		bool InlineIfPossible(ILVariable v, ILExpression inlinedExpression, ILNode next, bool aggressive)
 		{
 			// ensure the variable is accessed only a single time
-			if (!(numStloc.GetOrDefault(v) == 1 && numLdloc.GetOrDefault(v) == 1 && numLdloca.GetOrDefault(v) == 0))
+			if (numStloc.GetOrDefault(v) != 1)
+				return false;
+			int ldloc = numLdloc.GetOrDefault(v);
+			if (ldloc > 1 || ldloc + numLdloca.GetOrDefault(v) != 1)
 				return false;
 			
 			if (next is ILCondition)
@@ -180,35 +228,135 @@ namespace ICSharpCode.Decompiler.ILAst
 			ILExpression parent;
 			int pos;
 			if (FindLoadInNext(next as ILExpression, v, inlinedExpression, out parent, out pos) == true) {
+				if (ldloc == 0) {
+					if (!IsGeneratedValueTypeTemporary((ILExpression)next, parent, pos, v, inlinedExpression))
+						return false;
+				} else {
 					if (!aggressive && !v.IsGenerated && !NonAggressiveInlineInto((ILExpression)next, parent, inlinedExpression))
 						return false;
+				}
 				
 				// Assign the ranges of the ldloc instruction:
 				inlinedExpression.ILRanges.AddRange(parent.Arguments[pos].ILRanges);
 				
+				if (ldloc == 0) {
+					// it was an ldloca instruction, so we need to use the pseudo-opcode 'addressof' so that the types
+					// comes out correctly
+					parent.Arguments[pos] = new ILExpression(ILCode.AddressOf, null, inlinedExpression);
+				} else {
 					parent.Arguments[pos] = inlinedExpression;
-				
+				}
 				return true;
 			}
 			return false;
 		}
 
-		bool NonAggressiveInlineInto(ILExpression next, ILExpression parent, ILExpression inlinedExpression)
+		/// <summary>
+		/// Is this a temporary variable generated by the C# compiler for instance method calls on value type values
+		/// </summary>
+		/// <param name="next">The next top-level expression</param>
+		/// <param name="parent">The direct parent of the load within 'next'</param>
+		/// <param name="pos">Index of the load within 'parent'</param>
+		/// <param name="v">The variable being inlined.</param>
+		/// <param name="inlinedExpression">The expression being inlined</param>
+		bool IsGeneratedValueTypeTemporary(ILExpression next, ILExpression parent, int pos, ILVariable v, ILExpression inlinedExpression)
 		{
+			if (pos == 0 && v.Type != null && v.Type.IsValueType) {
+				// Inlining a value type variable is allowed only if the resulting code will maintain the semantics
+				// that the method is operating on a copy.
+				// Thus, we have to disallow inlining of other locals, fields, array elements, dereferenced pointers
 				switch (inlinedExpression.Code) {
-				case ILCode.InitArray:
-				case ILCode.InitCollection:
-				case ILCode.DefaultValue:
+					case ILCode.Ldloc:
+					case ILCode.Stloc:
+					case ILCode.CompoundAssignment:
+					case ILCode.Ldelem_Any:
+					case ILCode.Ldelem_I:
+					case ILCode.Ldelem_I1:
+					case ILCode.Ldelem_I2:
+					case ILCode.Ldelem_I4:
+					case ILCode.Ldelem_I8:
+					case ILCode.Ldelem_R4:
+					case ILCode.Ldelem_R8:
+					case ILCode.Ldelem_Ref:
+					case ILCode.Ldelem_U1:
+					case ILCode.Ldelem_U2:
+					case ILCode.Ldelem_U4:
+					case ILCode.Ldobj:
+					case ILCode.Ldind_Ref:
+						return false;
+					case ILCode.Ldfld:
+					case ILCode.Stfld:
+					case ILCode.Ldsfld:
+					case ILCode.Stsfld:
+						// allow inlining field access only if it's a readonly field
+						FieldDefinition f = ((FieldReference)inlinedExpression.Operand).Resolve();
+						if (!(f != null && f.IsInitOnly))
+							return false;
+						break;
+					case ILCode.Call:
+					case ILCode.CallGetter:
+						// inlining runs both before and after IntroducePropertyAccessInstructions,
+						// so we have to handle both 'call' and 'callgetter'
+						MethodReference mr = (MethodReference)inlinedExpression.Operand;
+						// ensure that it's not an multi-dimensional array getter
+						if (mr.DeclaringType is ArrayType)
+							return false;
+						goto case ILCode.Callvirt;
+					case ILCode.Callvirt:
+					case ILCode.CallvirtGetter:
+						// don't inline foreach loop variables:
+						mr = (MethodReference)inlinedExpression.Operand;
+						if (mr.Name == "get_Current" && mr.HasThis)
+							return false;
+						break;
+					case ILCode.Castclass:
+					case ILCode.Unbox_Any:
+						// These are valid, but might occur as part of a foreach loop variable.
+						ILExpression arg = inlinedExpression.Arguments[0];
+						if (arg.Code == ILCode.CallGetter || arg.Code == ILCode.CallvirtGetter || arg.Code == ILCode.Call || arg.Code == ILCode.Callvirt) {
+							mr = (MethodReference)arg.Operand;
+							if (mr.Name == "get_Current" && mr.HasThis)
+								return false; // looks like a foreach loop variable, so don't inline it
+						}
+						break;
+				}
+				
+				// inline the compiler-generated variable that are used when accessing a member on a value type:
+				switch (parent.Code) {
+					case ILCode.Call:
+					case ILCode.CallGetter:
+					case ILCode.CallSetter:
+					case ILCode.Callvirt:
+					case ILCode.CallvirtGetter:
+					case ILCode.CallvirtSetter:
+						MethodReference mr = (MethodReference)parent.Operand;
+						return mr.HasThis;
+					case ILCode.Stfld:
+					case ILCode.Ldfld:
+					case ILCode.Ldflda:
 						return true;
 				}
+			}
+			return false;
+		}
+		
+		/// <summary>
+		/// Determines whether a variable should be inlined in non-aggressive mode, even though it is not a generated variable.
+		/// </summary>
+		/// <param name="next">The next top-level expression</param>
+		/// <param name="parent">The direct parent of the load within 'next'</param>
+		/// <param name="inlinedExpression">The expression being inlined</param>
+		bool NonAggressiveInlineInto(ILExpression next, ILExpression parent, ILExpression inlinedExpression)
+		{
+			if (inlinedExpression.Code == ILCode.DefaultValue)
+				return true;
 			
 			switch (next.Code) {
 				case ILCode.Ret:
-					return parent.Code == ILCode.Ret;
 				case ILCode.Brtrue:
-					return parent.Code == ILCode.Brtrue;
+					return parent == next;
 				case ILCode.Switch:
-					return parent.Code == ILCode.Switch || parent.Code == ILCode.Sub;
+					return parent == next || (parent.Code == ILCode.Sub && parent == next.Arguments[0]);
 				default:
 					return false;
 			}
@@ -237,12 +385,12 @@ namespace ICSharpCode.Decompiler.ILAst
 			for (int i = 0; i < expr.Arguments.Count; i++) {
 				// Stop when seeing an opcode that does not guarantee that its operands will be evaluated.
 				// Inlining in that case might result in the inlined expresion not being evaluted.
-				if (i == 1 && (expr.Code == ILCode.LogicAnd || expr.Code == ILCode.LogicOr || expr.Code == ILCode.TernaryOp))
+				if (i == 1 && (expr.Code == ILCode.LogicAnd || expr.Code == ILCode.LogicOr || expr.Code == ILCode.TernaryOp || expr.Code == ILCode.NullCoalescing))
 					return false;
 				
 				ILExpression arg = expr.Arguments[i];
 				
-				if (arg.Code == ILCode.Ldloc && arg.Operand == v) {
+				if ((arg.Code == ILCode.Ldloc || arg.Code == ILCode.Ldloca) && arg.Operand == v) {
 					parent = expr;
 					pos = i;
 					return true;

src/Libraries/ICSharpCode.Decompiler/ILAst/InitializerPeepholeTransforms.cs

@@ -1,10 +1,25 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
-
 using Mono.Cecil;
 
 namespace ICSharpCode.Decompiler.ILAst
@@ -12,41 +27,31 @@ namespace ICSharpCode.Decompiler.ILAst
 	/// <summary>
 	/// IL AST transformation that introduces array, object and collection initializers.
 	/// </summary>
-	public class Initializers
+	partial class ILAstOptimizer
 	{
-		public static bool TransformArrayInitializers(List<ILNode> body, ILExpression expr, int pos)
+		#region Array Initializers
+		bool TransformArrayInitializers(List<ILNode> body, ILExpression expr, int pos)
 		{
-			ILVariable v, v2, v3;
+			ILVariable v, v3;
 			ILExpression newarrExpr;
-			TypeReference arrayType;
+			TypeReference elementType;
 			ILExpression lengthExpr;
 			int arrayLength;
 			if (expr.Match(ILCode.Stloc, out v, out newarrExpr) &&
-			    newarrExpr.Match(ILCode.Newarr, out arrayType, out lengthExpr) &&
+			    newarrExpr.Match(ILCode.Newarr, out elementType, out lengthExpr) &&
 			    lengthExpr.Match(ILCode.Ldc_I4, out arrayLength) &&
-			    arrayLength > 0)
-			{
-				MethodReference methodRef;
-				ILExpression methodArg1;
-				ILExpression methodArg2;
-				FieldDefinition field;
-				if (body.ElementAtOrDefault(pos + 1).Match(ILCode.Call, out methodRef, out methodArg1, out methodArg2) &&
-				    methodRef.DeclaringType.FullName == "System.Runtime.CompilerServices.RuntimeHelpers" &&
-				    methodRef.Name == "InitializeArray" &&
-				    methodArg1.Match(ILCode.Ldloc, out v2) &&
-				    v == v2 &&
-				    methodArg2.Match(ILCode.Ldtoken, out field) &&
-				    field != null && field.InitialValue != null)
-				{
-					ILExpression[] newArr = new ILExpression[arrayLength];
-					if (DecodeArrayInitializer(TypeAnalysis.GetTypeCode(arrayType), field.InitialValue, newArr)) {
+			    arrayLength > 0) {
+				ILExpression[] newArr;
+				int initArrayPos;
+				if (ForwardScanInitializeArrayRuntimeHelper(body, pos + 1, v, elementType, arrayLength, out newArr, out initArrayPos)) {
+					var arrayType = new ArrayType(elementType, 1);
+					arrayType.Dimensions[0] = new ArrayDimension(0, arrayLength);
 					body[pos] = new ILExpression(ILCode.Stloc, v, new ILExpression(ILCode.InitArray, arrayType, newArr));
-						body.RemoveAt(pos + 1);
-						return true;
+					body.RemoveAt(initArrayPos);
 				}
-				}
-				
-				const int maxConsecutiveDefaultValueExpressions = 10;
+				// Put in a limit so that we don't consume too much memory if the code allocates a huge array
+				// and populates it extremely sparsly. However, 255 "null" elements in a row actually occur in the Mono C# compiler!
+				const int maxConsecutiveDefaultValueExpressions = 300;
 				List<ILExpression> operands = new List<ILExpression>();
 				int numberOfInstructionsToRemove = 0;
 				for (int j = pos + 1; j < body.Count; j++) {
@@ -58,10 +63,9 @@ namespace ICSharpCode.Decompiler.ILAst
 					    v == v3 &&
 					    nextExpr.Arguments[1].Match(ILCode.Ldc_I4, out arrayPos) &&
 					    arrayPos >= operands.Count &&
-					    arrayPos <= operands.Count + maxConsecutiveDefaultValueExpressions)
-					{
+					    arrayPos <= operands.Count + maxConsecutiveDefaultValueExpressions) {
 						while (operands.Count < arrayPos)
-							operands.Add(new ILExpression(ILCode.DefaultValue, arrayType));
+							operands.Add(new ILExpression(ILCode.DefaultValue, elementType));
 						operands.Add(nextExpr.Arguments[2]);
 						numberOfInstructionsToRemove++;
 					} else {
@@ -69,11 +73,79 @@ namespace ICSharpCode.Decompiler.ILAst
 					}
 				}
 				if (operands.Count == arrayLength) {
+					var arrayType = new ArrayType(elementType, 1);
+					arrayType.Dimensions[0] = new ArrayDimension(0, arrayLength);
 					expr.Arguments[0] = new ILExpression(ILCode.InitArray, arrayType, operands);
 					body.RemoveRange(pos + 1, numberOfInstructionsToRemove);
+
+					new ILInlining(method).InlineIfPossible(body, ref pos);
+					return true;
+				}
+			}
+			return false;
+		}
+
+		bool TransformMultidimensionalArrayInitializers(List<ILNode> body, ILExpression expr, int pos)
+		{
+			ILVariable v;
+			ILExpression newarrExpr;
+			MethodReference ctor;
+			List<ILExpression> ctorArgs;
+			ArrayType arrayType;
+			if (expr.Match(ILCode.Stloc, out v, out newarrExpr) &&
+			    newarrExpr.Match(ILCode.Newobj, out ctor, out ctorArgs) &&
+			    (arrayType = (ctor.DeclaringType as ArrayType)) != null &&
+			    arrayType.Rank == ctorArgs.Count) {
+				// Clone the type, so we can muck about with the Dimensions
+				arrayType = new ArrayType(arrayType.ElementType, arrayType.Rank);
+				var arrayLengths = new int[arrayType.Rank];
+				for (int i = 0; i < arrayType.Rank; i++) {
+					if (!ctorArgs[i].Match(ILCode.Ldc_I4, out arrayLengths[i])) return false;
+					if (arrayLengths[i] <= 0) return false;
+					arrayType.Dimensions[i] = new ArrayDimension(0, arrayLengths[i]);
+				}
+
+				var totalElements = arrayLengths.Aggregate(1, (t, l) => t * l);
+				ILExpression[] newArr;
+				int initArrayPos;
+				if (ForwardScanInitializeArrayRuntimeHelper(body, pos + 1, v, arrayType, totalElements, out newArr, out initArrayPos)) {
+					var mdArr = Array.CreateInstance(typeof(ILExpression), arrayLengths);
+					body[pos] = new ILExpression(ILCode.Stloc, v, new ILExpression(ILCode.InitArray, arrayType, newArr));
+					body.RemoveAt(initArrayPos);
+					return true;
+				}
+			}
+			return false;
+		}
+
+		bool ForwardScanInitializeArrayRuntimeHelper(List<ILNode> body, int pos, ILVariable array, TypeReference arrayType, int arrayLength, out ILExpression[] values, out int foundPos)
+		{
+			ILVariable v2;
+			MethodReference methodRef;
+			ILExpression methodArg1;
+			ILExpression methodArg2;
+			FieldReference fieldRef;
+			if (body.ElementAtOrDefault(pos).Match(ILCode.Call, out methodRef, out methodArg1, out methodArg2) &&
+			    methodRef.DeclaringType.FullName == "System.Runtime.CompilerServices.RuntimeHelpers" &&
+			    methodRef.Name == "InitializeArray" &&
+			    methodArg1.Match(ILCode.Ldloc, out v2) &&
+			    array == v2 &&
+			    methodArg2.Match(ILCode.Ldtoken, out fieldRef))
+			{
+				FieldDefinition fieldDef = fieldRef.ResolveWithinSameModule();
+				if (fieldDef != null && fieldDef.InitialValue != null) {
+					ILExpression[] newArr = new ILExpression[arrayLength];
+					if (DecodeArrayInitializer(TypeAnalysis.GetTypeCode(arrayType.GetElementType()),
+					                           fieldDef.InitialValue, newArr))
+					{
+						values = newArr;
+						foundPos = pos;
 						return true;
 					}
 				}
+			}
+			values = null;
+			foundPos = -1;
 			return false;
 		}
 
@@ -81,7 +153,6 @@ namespace ICSharpCode.Decompiler.ILAst
 		{
 			switch (elementType) {
 				case TypeCode.Boolean:
-				case TypeCode.SByte:
 				case TypeCode.Byte:
 					if (initialValue.Length == output.Length) {
 						for (int j = 0; j < output.Length; j++) {
@@ -90,9 +161,15 @@ namespace ICSharpCode.Decompiler.ILAst
 						return true;
 					}
 					return false;
-				case TypeCode.Char:
+				case TypeCode.SByte:
+					if (initialValue.Length == output.Length) {
+						for (int j = 0; j < output.Length; j++) {
+							output[j] = new ILExpression(ILCode.Ldc_I4, (int)unchecked((sbyte)initialValue[j]));
+						}
+						return true;
+					}
+					return false;
 				case TypeCode.Int16:
-				case TypeCode.UInt16:
 					if (initialValue.Length == output.Length * 2) {
 						for (int j = 0; j < output.Length; j++) {
 							output[j] = new ILExpression(ILCode.Ldc_I4, (int)BitConverter.ToInt16(initialValue, j * 2));
@@ -100,6 +177,15 @@ namespace ICSharpCode.Decompiler.ILAst
 						return true;
 					}
 					return false;
+				case TypeCode.Char:
+				case TypeCode.UInt16:
+					if (initialValue.Length == output.Length * 2) {
+						for (int j = 0; j < output.Length; j++) {
+							output[j] = new ILExpression(ILCode.Ldc_I4, (int)BitConverter.ToUInt16(initialValue, j * 2));
+						}
+						return true;
+					}
+					return false;
 				case TypeCode.Int32:
 				case TypeCode.UInt32:
 					if (initialValue.Length == output.Length * 4) {
@@ -138,50 +224,300 @@ namespace ICSharpCode.Decompiler.ILAst
 					return false;
 			}
 		}
+		#endregion
 
-		public static bool TransformCollectionInitializers(List<ILNode> body, ILExpression expr, int pos)
+		/// <summary>
+		/// Handles both object and collection initializers.
+		/// </summary>
+		bool TransformObjectInitializers(List<ILNode> body, ILExpression expr, int pos)
 		{
-			ILVariable v, v2;
+			if (!context.Settings.ObjectOrCollectionInitializers)
+				return false;
+
+			Debug.Assert(body[pos] == expr); // should be called for top-level expressions only
+			ILVariable v;
 			ILExpression newObjExpr;
+			TypeReference newObjType;
+			bool isValueType;
 			MethodReference ctor;
 			List<ILExpression> ctorArgs;
-			if (expr.Match(ILCode.Stloc, out v, out newObjExpr) &&
-			    newObjExpr.Match(ILCode.Newobj, out ctor, out ctorArgs))
+			if (expr.Match(ILCode.Stloc, out v, out newObjExpr)) {
+				if (newObjExpr.Match(ILCode.Newobj, out ctor, out ctorArgs)) {
+					// v = newObj(ctor, ctorArgs)
+					newObjType = ctor.DeclaringType;
+					isValueType = false;
+				} else if (newObjExpr.Match(ILCode.DefaultValue, out newObjType)) {
+					// v = defaultvalue(type)
+					isValueType = true;
+				} else {
+					return false;
+				}
+			} else if (expr.Match(ILCode.Call, out ctor, out ctorArgs)) {
+				// call(SomeStruct::.ctor, ldloca(v), remainingArgs)
+				if (ctorArgs.Count > 0 && ctorArgs[0].Match(ILCode.Ldloca, out v)) {
+					isValueType = true;
+					newObjType = ctor.DeclaringType;
+					ctorArgs = new List<ILExpression>(ctorArgs);
+					ctorArgs.RemoveAt(0);
+					newObjExpr = new ILExpression(ILCode.Newobj, ctor, ctorArgs);
+				} else {
+					return false;
+				}
+			} else {
+				return false;
+			}
+			if (newObjType.IsValueType != isValueType)
+				return false;
+			
+			int originalPos = pos;
+
+			// don't use object initializer syntax for closures
+			if (Ast.Transforms.DelegateConstruction.IsPotentialClosure(context, newObjType.ResolveWithinSameModule()))
+				return false;
+
+			ILExpression initializer = ParseObjectInitializer(body, ref pos, v, newObjExpr, IsCollectionType(newObjType), isValueType);
+
+			if (initializer.Arguments.Count == 1) // only newobj argument, no initializer elements
+				return false;
+			int totalElementCount = pos - originalPos - 1; // totalElementCount: includes elements from nested collections
+			Debug.Assert(totalElementCount >= initializer.Arguments.Count - 1);
+
+			// Verify that we can inline 'v' into the next instruction:
+
+			if (pos >= body.Count)
+				return false; // reached end of block, but there should be another instruction which consumes the initialized object
+
+			ILInlining inlining = new ILInlining(method);
+			if (isValueType) {
+				// one ldloc for the use of the initialized object
+				if (inlining.numLdloc.GetOrDefault(v) != 1)
+					return false;
+				// one ldloca for each initializer argument, and also for the ctor call (if it exists)
+				if (inlining.numLdloca.GetOrDefault(v) != totalElementCount + (expr.Code == ILCode.Call ? 1 : 0))
+					return false;
+				// one stloc for the initial store (if no ctor call was used)
+				if (inlining.numStloc.GetOrDefault(v) != (expr.Code == ILCode.Call ? 0 : 1))
+					return false;
+			} else {
+				// one ldloc for each initializer argument, and another ldloc for the use of the initialized object
+				if (inlining.numLdloc.GetOrDefault(v) != totalElementCount + 1)
+					return false;
+				if (!(inlining.numStloc.GetOrDefault(v) == 1 && inlining.numLdloca.GetOrDefault(v) == 0))
+					return false;
+			}
+			ILExpression nextExpr = body[pos] as ILExpression;
+			if (!inlining.CanInlineInto(nextExpr, v, initializer))
+				return false;
+
+			if (expr.Code == ILCode.Stloc) {
+				expr.Arguments[0] = initializer;
+			} else {
+				Debug.Assert(expr.Code == ILCode.Call);
+				expr.Code = ILCode.Stloc;
+				expr.Operand = v;
+				expr.Arguments.Clear();
+				expr.Arguments.Add(initializer);
+			}
+			// remove all the instructions that were pulled into the initializer
+			body.RemoveRange(originalPos + 1, pos - originalPos - 1);
+
+			// now that we know that it's an object initializer, change all the first arguments to 'InitializedObject'
+			ChangeFirstArgumentToInitializedObject(initializer);
+
+			inlining = new ILInlining(method);
+			inlining.InlineIfPossible(body, ref originalPos);
+
+			return true;
+		}
+
+		/// <summary>
+		/// Gets whether the type supports collection initializers.
+		/// </summary>
+		static bool IsCollectionType(TypeReference tr)
 		{
-				TypeDefinition td = ctor.DeclaringType.Resolve();
-				if (td == null || !td.Interfaces.Any(intf => intf.Name == "IEnumerable" && intf.Namespace == "System.Collections"))
+			if (tr == null)
+				return false;
+			TypeDefinition td = tr.Resolve();
+			while (td != null) {
+				if (td.Interfaces.Any(intf => intf.Name == "IEnumerable" && intf.Namespace == "System.Collections"))
+					return true;
+				td = td.BaseType != null ? td.BaseType.Resolve() : null;
+			}
 			return false;
+		}
 
-				// This is a collection: we can convert Add() calls into a collection initializer
-				ILExpression collectionInitializer = new ILExpression(ILCode.InitCollection, null, newObjExpr);
-				bool anyAdded = false;
-				while(pos + 1 < body.Count) {
-					ILExpression nextExpr = body[pos + 1] as ILExpression;
+		/// <summary>
+		/// Gets whether 'expr' represents a setter in an object initializer.
+		/// ('CallvirtSetter(Property, v, value)')
+		/// </summary>
+		static bool IsSetterInObjectInitializer(ILExpression expr)
+		{
+			if (expr == null)
+				return false;
+			if (expr.Code == ILCode.CallvirtSetter || expr.Code == ILCode.CallSetter || expr.Code == ILCode.Stfld) {
+				return expr.Arguments.Count == 2;
+			}
+			return false;
+		}
+
+		/// <summary>
+		/// Gets whether 'expr' represents the invocation of an 'Add' method in a collection initializer.
+		/// </summary>
+		static bool IsAddMethodCall(ILExpression expr)
+		{
 			MethodReference addMethod;
 			List<ILExpression> args;
-					if (nextExpr.Match(ILCode.Callvirt, out addMethod, out args) &&
-					    addMethod.Name == "Add" &&
-					    addMethod.HasThis &&
-					    args.Count >= 2 &&
-					    args[0].Match(ILCode.Ldloc, out v2) &&
-					    v == v2)
+			if (expr.Match(ILCode.Callvirt, out addMethod, out args)) {
+				if (addMethod.Name == "Add" && addMethod.HasThis) {
+					return args.Count >= 2;
+				}
+			}
+			return false;
+		}
+
+		/// <summary>
+		/// Parses an object initializer.
+		/// </summary>
+		/// <param name="body">ILAst block</param>
+		/// <param name="pos">
+		/// Input: position of the instruction assigning to 'v'.
+		/// Output: first position after the object initializer
+		/// </param>
+		/// <param name="v">The variable that holds the object being initialized</param>
+		/// <param name="newObjExpr">The newobj instruction</param>
+		/// <returns>InitObject instruction</returns>
+		ILExpression ParseObjectInitializer(List<ILNode> body, ref int pos, ILVariable v, ILExpression newObjExpr, bool isCollection, bool isValueType)
 		{
-						nextExpr.Code = ILCode.InitCollectionAddMethod;
-						nextExpr.Arguments.RemoveAt(0);
-						collectionInitializer.Arguments.Add(nextExpr);
-						body.RemoveAt(pos + 1);
-						anyAdded = true;
+			// Take care not to modify any existing ILExpressions in here.
+			// We just construct new ones around the old ones, any modifications must wait until the whole
+			// object/collection initializer was analyzed.
+			ILExpression objectInitializer = new ILExpression(isCollection ? ILCode.InitCollection : ILCode.InitObject, null, newObjExpr);
+			List<ILExpression> initializerStack = new List<ILExpression>();
+			initializerStack.Add(objectInitializer);
+			while (++pos < body.Count) {
+				ILExpression nextExpr = body[pos] as ILExpression;
+				if (IsSetterInObjectInitializer(nextExpr)) {
+					if (!AdjustInitializerStack(initializerStack, nextExpr.Arguments[0], v, false, isValueType)) {
+						CleanupInitializerStackAfterFailedAdjustment(initializerStack);
+						break;
+					}
+					initializerStack[initializerStack.Count - 1].Arguments.Add(nextExpr);
+				} else if (IsAddMethodCall(nextExpr)) {
+					if (!AdjustInitializerStack(initializerStack, nextExpr.Arguments[0], v, true, isValueType)) {
+						CleanupInitializerStackAfterFailedAdjustment(initializerStack);
+						break;
+					}
+					initializerStack[initializerStack.Count - 1].Arguments.Add(nextExpr);
 				} else {
+					// can't match any more initializers: end of object initializer
 					break;
 				}
 			}
-				// ensure we added at least one additional arg to the collection initializer:
-				if (anyAdded) {
-					expr.Arguments[0] = collectionInitializer;
-					return true;
+			return objectInitializer;
 		}
+
+		static bool AdjustInitializerStack(List<ILExpression> initializerStack, ILExpression argument, ILVariable v, bool isCollection, bool isValueType)
+		{
+			// Argument is of the form 'getter(getter(...(v)))'
+			// Unpack it into a list of getters:
+			List<ILExpression> getters = new List<ILExpression>();
+			while (argument.Code == ILCode.CallvirtGetter || argument.Code == ILCode.CallGetter || argument.Code == ILCode.Ldfld) {
+				getters.Add(argument);
+				if (argument.Arguments.Count != 1)
+					return false;
+				argument = argument.Arguments[0];
 			}
+			// Ensure that the final argument is 'v'
+			if (isValueType) {
+				ILVariable loadedVar;
+				if (!(argument.Match(ILCode.Ldloca, out loadedVar) && loadedVar == v))
 					return false;
+			} else {
+				if (!argument.MatchLdloc(v))
+					return false;
+			}
+			// Now compare the getters with those that are currently active on the initializer stack:
+			int i;
+			for (i = 1; i <= Math.Min(getters.Count, initializerStack.Count - 1); i++) {
+				ILExpression g1 = initializerStack[i].Arguments[0]; // getter stored in initializer
+				ILExpression g2 = getters[getters.Count - i]; // matching getter from argument
+				if (g1.Operand != g2.Operand) {
+					// operands differ, so we abort the comparison
+					break;
+				}
+			}
+			// Remove all initializers from the stack that were not matched with one from the argument:
+			initializerStack.RemoveRange(i, initializerStack.Count - i);
+			// Now create new initializers for the remaining arguments:
+			for (; i <= getters.Count; i++) {
+				ILExpression g = getters[getters.Count - i];
+				MemberReference mr = (MemberReference)g.Operand;
+				TypeReference returnType;
+				if (mr is FieldReference)
+					returnType = TypeAnalysis.GetFieldType((FieldReference)mr);
+				else
+					returnType = TypeAnalysis.SubstituteTypeArgs(((MethodReference)mr).ReturnType, mr);
+
+				ILExpression nestedInitializer = new ILExpression(
+					IsCollectionType(returnType) ? ILCode.InitCollection : ILCode.InitObject,
+					null, g);
+				// add new initializer to its parent:
+				ILExpression parentInitializer = initializerStack[initializerStack.Count - 1];
+				if (parentInitializer.Code == ILCode.InitCollection) {
+					// can't add children to collection initializer
+					if (parentInitializer.Arguments.Count == 1) {
+						// convert empty collection initializer to object initializer
+						parentInitializer.Code = ILCode.InitObject;
+					} else {
+						return false;
+					}
+				}
+				parentInitializer.Arguments.Add(nestedInitializer);
+				initializerStack.Add(nestedInitializer);
+			}
+			ILExpression lastInitializer = initializerStack[initializerStack.Count - 1];
+			if (isCollection) {
+				return lastInitializer.Code == ILCode.InitCollection;
+			} else {
+				if (lastInitializer.Code == ILCode.InitCollection) {
+					if (lastInitializer.Arguments.Count == 1) {
+						// convert empty collection initializer to object initializer
+						lastInitializer.Code = ILCode.InitObject;
+						return true;
+					} else {
+						return false;
+					}
+				} else {
+					return true;
+				}
+			}
+		}
+
+		static void CleanupInitializerStackAfterFailedAdjustment(List<ILExpression> initializerStack)
+		{
+			// There might be empty nested initializers left over; so we'll remove those:
+			while (initializerStack.Count > 1 && initializerStack[initializerStack.Count - 1].Arguments.Count == 1) {
+				ILExpression parent = initializerStack[initializerStack.Count - 2];
+				Debug.Assert(parent.Arguments.Last() == initializerStack[initializerStack.Count - 1]);
+				parent.Arguments.RemoveAt(parent.Arguments.Count - 1);
+				initializerStack.RemoveAt(initializerStack.Count - 1);
+			}
+		}
+
+		static void ChangeFirstArgumentToInitializedObject(ILExpression initializer)
+		{
+			// Go through all elements in the initializer (so skip the newobj-instr. at the start)
+			for (int i = 1; i < initializer.Arguments.Count; i++) {
+				ILExpression element = initializer.Arguments[i];
+				if (element.Code == ILCode.InitCollection || element.Code == ILCode.InitObject) {
+					// nested collection/object initializer
+					ILExpression getCollection = element.Arguments[0];
+					getCollection.Arguments[0] = new ILExpression(ILCode.InitializedObject, null);
+					ChangeFirstArgumentToInitializedObject(element); // handle the collection elements
+				} else {
+					element.Arguments[0] = new ILExpression(ILCode.InitializedObject, null);
+				}
+			}
 		}
 	}
 }

src/Libraries/ICSharpCode.Decompiler/ILAst/LoopsAndConditions.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -16,7 +31,7 @@ namespace ICSharpCode.Decompiler.ILAst
 	{
 		Dictionary<ILLabel, ControlFlowNode> labelToCfNode = new Dictionary<ILLabel, ControlFlowNode>();
 		
-		DecompilerContext context;
+		readonly DecompilerContext context;
 		
 		uint nextLabelIndex = 0;
 		
@@ -271,7 +286,7 @@ namespace ICSharpCode.Decompiler.ILAst
 								ILLabel condLabel = caseLabels[i];
 								
 								// Find or create new case block
-								ILSwitch.CaseBlock caseBlock = ilSwitch.CaseBlocks.Where(b => b.EntryGoto.Operand == condLabel).FirstOrDefault();
+								ILSwitch.CaseBlock caseBlock = ilSwitch.CaseBlocks.FirstOrDefault(b => b.EntryGoto.Operand == condLabel);
 								if (caseBlock == null) {
 									caseBlock = new ILSwitch.CaseBlock() {
 										Values = new List<int>(),

src/Libraries/ICSharpCode.Decompiler/ILAst/PatternMatching.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;

src/Libraries/ICSharpCode.Decompiler/ILAst/PeepholeTransform.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -75,6 +90,10 @@ namespace ICSharpCode.Decompiler.ILAst
 				expr.Code = ILCode.Stobj;
 				expr.Arguments.Add(new ILExpression(ILCode.DefaultValue, expr.Operand));
 				modified = true;
+			} else if (expr.Code == ILCode.Cpobj) {
+				expr.Code = ILCode.Stobj;
+				expr.Arguments[1] = new ILExpression(ILCode.Ldobj, expr.Operand, expr.Arguments[1]);
+				modified = true;
 			}
 			ILExpression arg, arg2;
 			TypeReference type;
@@ -425,6 +444,7 @@ namespace ICSharpCode.Decompiler.ILAst
 		#endregion
 		
 		#region IntroducePostIncrement
+
 		bool IntroducePostIncrement(List<ILNode> body, ILExpression expr, int pos)
 		{
 			bool modified = IntroducePostIncrementForVariables(body, expr, pos);
@@ -450,19 +470,50 @@ namespace ICSharpCode.Decompiler.ILAst
 			ILExpression exprInit;
 			if (!(expr.Match(ILCode.Stloc, out exprVar, out exprInit) && exprVar.IsGenerated))
 				return false;
-			if (!(exprInit.Code == ILCode.Ldloc || exprInit.Code == ILCode.Ldsfld || (exprInit.Code == ILCode.CallGetter && exprInit.Arguments.Count == 0)))
-				return false;
 			
+			//The next expression
 			ILExpression nextExpr = body.ElementAtOrDefault(pos + 1) as ILExpression;
 			if (nextExpr == null)
 				return false;
-			if (exprInit.Code == ILCode.CallGetter) {
-				if (!(nextExpr.Code == ILCode.CallSetter && IsGetterSetterPair(exprInit.Operand, nextExpr.Operand)))
+			
+			ILCode loadInstruction = exprInit.Code;
+			ILCode storeInstruction = nextExpr.Code;
+			bool recombineVariable = false;
+			
+			// We only recognise local variables, static fields, and static getters with no arguments
+			switch (loadInstruction) {
+				case ILCode.Ldloc:
+					//Must be a matching store type
+					if (storeInstruction != ILCode.Stloc)
+						return false;
+					ILVariable loadVar = (ILVariable)exprInit.Operand;
+					ILVariable storeVar = (ILVariable)nextExpr.Operand;
+					if (loadVar != storeVar) {
+						if (loadVar.OriginalVariable != null && loadVar.OriginalVariable == storeVar.OriginalVariable)
+							recombineVariable = true;
+						else
 							return false;
-			} else {
-				if (!(nextExpr.Code == (exprInit.Code == ILCode.Ldloc ? ILCode.Stloc : ILCode.Stsfld) && nextExpr.Operand == exprInit.Operand))
+					}
+					break;
+				case ILCode.Ldsfld:
+					if (storeInstruction != ILCode.Stsfld)
+						return false;
+					if (exprInit.Operand != nextExpr.Operand)
+						return false;
+					break;
+				case ILCode.CallGetter:
+					// non-static getters would have the 'this' argument
+					if (exprInit.Arguments.Count != 0)
+						return false;
+					if (storeInstruction != ILCode.CallSetter)
+						return false;
+					if (!IsGetterSetterPair(exprInit.Operand, nextExpr.Operand))
+						return false;
+					break;
+				default:
 					return false;
 			}
+			
 			ILExpression addExpr = nextExpr.Arguments[0];
 			
 			int incrementAmount;
@@ -470,12 +521,23 @@ namespace ICSharpCode.Decompiler.ILAst
 			if (!(incrementAmount != 0 && addExpr.Arguments[0].MatchLdloc(exprVar)))
 				return false;
 			
-			if (exprInit.Code == ILCode.Ldloc)
+			if (recombineVariable) {
+				// Split local variable, unsplit these two instances
+				// replace nextExpr.Operand with exprInit.Operand
+				ReplaceVariables(method, oldVar => oldVar == nextExpr.Operand ? (ILVariable)exprInit.Operand : oldVar);
+			}
+			
+			switch (loadInstruction) {
+				case ILCode.Ldloc:
 					exprInit.Code = ILCode.Ldloca;
-			else if (exprInit.Code == ILCode.CallGetter)
-				exprInit.AddPrefix(new ILExpressionPrefix(ILCode.PropertyAddress));
-			else
+					break;
+				case ILCode.Ldsfld:
 					exprInit.Code = ILCode.Ldsflda;
+					break;
+				case ILCode.CallGetter:
+					exprInit = new ILExpression(ILCode.AddressOf, null, exprInit);
+					break;
+			}
 			expr.Arguments[0] = new ILExpression(incrementCode, incrementAmount, exprInit);
 			body.RemoveAt(pos + 1); // TODO ILRanges
 			return true;
@@ -567,8 +629,8 @@ namespace ICSharpCode.Decompiler.ILAst
 			if (expr.Code == ILCode.Stobj) {
 				stloc.Arguments[0] = new ILExpression(ILCode.PostIncrement, incrementAmount, initialValue.Arguments[0]);
 			} else if (expr.Code == ILCode.CallSetter || expr.Code == ILCode.CallvirtSetter) {
+				initialValue = new ILExpression(ILCode.AddressOf, null, initialValue);
 				stloc.Arguments[0] = new ILExpression(ILCode.PostIncrement, incrementAmount, initialValue);
-				initialValue.AddPrefix(new ILExpressionPrefix(ILCode.PropertyAddress));
 			} else {
 				stloc.Arguments[0] = new ILExpression(ILCode.PostIncrement, incrementAmount, initialValue);
 				initialValue.Code = (expr.Code == ILCode.Stfld ? ILCode.Ldflda : ILCode.Ldelema);
@@ -806,5 +868,40 @@ namespace ICSharpCode.Decompiler.ILAst
 			return false;
 		}
 		#endregion
+		
+		#region SimplifyShiftOperators
+		static bool SimplifyShiftOperators(List<ILNode> body, ILExpression expr, int pos)
+		{
+			// C# compiles "a << b" to "a << (b & 31)", so we will remove the "& 31" if possible.
+			bool modified = false;
+			SimplifyShiftOperators(expr, ref modified);
+			return modified;
+		}
+
+		static void SimplifyShiftOperators(ILExpression expr, ref bool modified)
+		{
+			for (int i = 0; i < expr.Arguments.Count; i++) 
+				SimplifyShiftOperators(expr.Arguments[i], ref modified);
+			if (expr.Code != ILCode.Shl && expr.Code != ILCode.Shr && expr.Code != ILCode.Shr_Un) 
+				return;
+			var a = expr.Arguments[1];
+			if (a.Code != ILCode.And || a.Arguments[1].Code != ILCode.Ldc_I4 || expr.InferredType == null) 
+				return;
+			int mask;
+			switch (expr.InferredType.MetadataType) {
+				case MetadataType.Int32:
+				case MetadataType.UInt32: mask = 31; break;
+				case MetadataType.Int64:
+				case MetadataType.UInt64: mask = 63; break;
+				default: return;
+			}
+			if ((int)a.Arguments[1].Operand != mask) return;
+			var res = a.Arguments[0];
+			res.ILRanges.AddRange(a.ILRanges);
+			res.ILRanges.AddRange(a.Arguments[1].ILRanges);
+			expr.Arguments[1] = res;
+			modified = true;
+		}
+		#endregion
 	}
 }

src/Libraries/ICSharpCode.Decompiler/ILAst/SimpleControlFlow.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -219,6 +234,107 @@ namespace ICSharpCode.Decompiler.ILAst
 			return false;
 		}
 		
+		public bool SimplifyCustomShortCircuit(List<ILNode> body, ILBasicBlock head, int pos)
+		{
+			Debug.Assert(body.Contains(head));
+			
+			// --- looking for the following pattern ---
+			// stloc(targetVar, leftVar)
+			// brtrue(exitLabel, call(op_False, leftVar)
+			// br(followingBlock)
+			//
+			// FollowingBlock:
+			// stloc(targetVar, call(op_BitwiseAnd, leftVar, rightExpression))
+			// br(exitLabel)
+			// ---
+			
+			if (head.Body.Count < 3)
+				return false;
+			
+			// looking for:
+			// stloc(targetVar, leftVar)
+			ILVariable targetVar;
+			ILExpression targetVarInitExpr;
+			if (!head.Body[head.Body.Count - 3].Match(ILCode.Stloc, out targetVar, out targetVarInitExpr))
+				return false;
+			
+			ILVariable leftVar;
+			if (!targetVarInitExpr.Match(ILCode.Ldloc, out leftVar))
+				return false;
+			
+			// looking for:
+			// brtrue(exitLabel, call(op_False, leftVar)
+			// br(followingBlock)
+			ILExpression callExpr;
+			ILLabel exitLabel;
+			ILLabel followingBlock;
+			if(!head.MatchLastAndBr(ILCode.Brtrue, out exitLabel, out callExpr, out followingBlock))
+				return false;
+			
+			if (labelGlobalRefCount[followingBlock] > 1)
+				return false;
+			
+			MethodReference opFalse;
+			ILExpression opFalseArg;
+			if (!callExpr.Match(ILCode.Call, out opFalse, out opFalseArg))
+				return false;
+			
+			// ignore operators other than op_False and op_True
+			if (opFalse.Name != "op_False" && opFalse.Name != "op_True")
+				return false;
+			
+			if (!opFalseArg.MatchLdloc(leftVar))
+				return false;
+			
+			ILBasicBlock followingBasicBlock = labelToBasicBlock[followingBlock];
+			
+			// FollowingBlock:
+			// stloc(targetVar, call(op_BitwiseAnd, leftVar, rightExpression))
+			// br(exitLabel)
+			ILVariable _targetVar;
+			ILExpression opBitwiseCallExpr;
+			ILLabel _exitLabel;
+			if (!followingBasicBlock.MatchSingleAndBr(ILCode.Stloc, out _targetVar, out opBitwiseCallExpr, out _exitLabel))
+				return false;
+			
+			if (_targetVar != targetVar || exitLabel != _exitLabel)
+				return false;
+			
+			MethodReference opBitwise;
+			ILExpression leftVarExpression;
+			ILExpression rightExpression;
+			if (!opBitwiseCallExpr.Match(ILCode.Call, out opBitwise, out leftVarExpression, out rightExpression))
+				return false;
+			
+			if (!leftVarExpression.MatchLdloc(leftVar))
+				return false;
+			
+			// ignore operators other than op_BitwiseAnd and op_BitwiseOr
+			if (opBitwise.Name != "op_BitwiseAnd" && opBitwise.Name != "op_BitwiseOr")
+				return false;
+			
+			// insert:
+			// stloc(targetVar, LogicAnd(C::op_BitwiseAnd, leftVar, rightExpression)
+			// br(exitLabel)
+			ILCode op = opBitwise.Name == "op_BitwiseAnd" ? ILCode.LogicAnd : ILCode.LogicOr;
+			
+			if (op == ILCode.LogicAnd && opFalse.Name != "op_False")
+				return false;
+			
+			if (op == ILCode.LogicOr && opFalse.Name != "op_True")
+				return false;
+			
+			ILExpression shortCircuitExpr = MakeLeftAssociativeShortCircuit(op, opFalseArg, rightExpression);
+			shortCircuitExpr.Operand = opBitwise;
+			
+			head.Body.RemoveTail(ILCode.Stloc, ILCode.Brtrue, ILCode.Br);
+			head.Body.Add(new ILExpression(ILCode.Stloc, targetVar, shortCircuitExpr));
+			head.Body.Add(new ILExpression(ILCode.Br, exitLabel));
+			body.Remove(followingBasicBlock);
+			
+			return true;
+		}
+		
 		ILExpression MakeLeftAssociativeShortCircuit(ILCode code, ILExpression left, ILExpression right)
 		{
 			// Assuming that the inputs are already left associative

src/Libraries/ICSharpCode.Decompiler/ILAst/TypeAnalysis.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -252,6 +267,10 @@ namespace ICSharpCode.Decompiler.ILAst
 					return typeSystem.Boolean;
 				case ILCode.LogicAnd:
 				case ILCode.LogicOr:
+					// if Operand is set the logic and/or expression is a custom operator
+					// we can deal with it the same as a normal invocation.
+					if (expr.Operand != null)
+						goto case ILCode.Call;
 					if (forceInferChildren) {
 						InferTypeForExpression(expr.Arguments[0], typeSystem.Boolean);
 						InferTypeForExpression(expr.Arguments[1], typeSystem.Boolean);
@@ -304,13 +323,7 @@ namespace ICSharpCode.Decompiler.ILAst
 						if (forceInferChildren) {
 							for (int i = 0; i < expr.Arguments.Count; i++) {
 								if (i == 0 && method.HasThis) {
-									ILExpressionPrefix constraint = expr.GetPrefix(ILCode.Constrained);
-									if (constraint != null)
-										InferTypeForExpression(expr.Arguments[i], new ByReferenceType((TypeReference)constraint.Operand));
-									else if (method.DeclaringType.IsValueType)
-										InferTypeForExpression(expr.Arguments[i], new ByReferenceType(method.DeclaringType));
-									else
-										InferTypeForExpression(expr.Arguments[i], method.DeclaringType);
+									InferTypeForExpression(expr.Arguments[0], MakeRefIfValueType(method.DeclaringType, expr.GetPrefix(ILCode.Constrained)));
 								} else {
 									InferTypeForExpression(expr.Arguments[i], SubstituteTypeArgs(method.Parameters[method.HasThis ? i - 1 : i].ParameterType, method));
 								}
@@ -319,10 +332,7 @@ namespace ICSharpCode.Decompiler.ILAst
 						if (expr.Code == ILCode.CallSetter || expr.Code == ILCode.CallvirtSetter) {
 							return SubstituteTypeArgs(method.Parameters.Last().ParameterType, method);
 						} else {
-							TypeReference type = SubstituteTypeArgs(method.ReturnType, method);
-							if (expr.GetPrefix(ILCode.PropertyAddress) != null && !(type is ByReferenceType))
-								type = new ByReferenceType(type);
-							return type;
+							return SubstituteTypeArgs(method.ReturnType, method);
 						}
 					}
 				case ILCode.Newobj:
@@ -335,32 +345,32 @@ namespace ICSharpCode.Decompiler.ILAst
 						}
 						return ctor.DeclaringType;
 					}
+				case ILCode.InitObject:
 				case ILCode.InitCollection:
 					return InferTypeForExpression(expr.Arguments[0], expectedType);
-				case ILCode.InitCollectionAddMethod:
-					{
-						MethodReference addMethod = (MethodReference)expr.Operand;
-						if (forceInferChildren) {
-							for (int i = 0; i < addMethod.Parameters.Count; i++) {
-								InferTypeForExpression(expr.Arguments[i], SubstituteTypeArgs(addMethod.Parameters[i].ParameterType, addMethod));
-							}
-						}
-						return addMethod.DeclaringType;
-					}
+				case ILCode.InitializedObject:
+					// expectedType should always be known due to the parent method call / property setter
+					Debug.Assert(expectedType != null);
+					return expectedType;
 					#endregion
 					#region Load/Store Fields
 				case ILCode.Ldfld:
-					if (forceInferChildren)
-						InferTypeForExpression(expr.Arguments[0], ((FieldReference)expr.Operand).DeclaringType);
+					if (forceInferChildren) {
+						InferTypeForExpression(expr.Arguments[0], MakeRefIfValueType(((FieldReference)expr.Operand).DeclaringType, expr.GetPrefix(ILCode.Constrained)));
+					}
 					return GetFieldType((FieldReference)expr.Operand);
 				case ILCode.Ldsfld:
 					return GetFieldType((FieldReference)expr.Operand);
 				case ILCode.Ldflda:
+					if (forceInferChildren) {
+						InferTypeForExpression(expr.Arguments[0], MakeRefIfValueType(((FieldReference)expr.Operand).DeclaringType, expr.GetPrefix(ILCode.Constrained)));
+					}
+					return new ByReferenceType(GetFieldType((FieldReference)expr.Operand));
 				case ILCode.Ldsflda:
 					return new ByReferenceType(GetFieldType((FieldReference)expr.Operand));
 				case ILCode.Stfld:
 					if (forceInferChildren) {
-						InferTypeForExpression(expr.Arguments[0], ((FieldReference)expr.Operand).DeclaringType);
+						InferTypeForExpression(expr.Arguments[0], MakeRefIfValueType(((FieldReference)expr.Operand).DeclaringType, expr.GetPrefix(ILCode.Constrained)));
 						InferTypeForExpression(expr.Arguments[1], GetFieldType((FieldReference)expr.Operand));
 					}
 					return GetFieldType((FieldReference)expr.Operand);
@@ -458,6 +468,21 @@ namespace ICSharpCode.Decompiler.ILAst
 						InferTypeForExpression(expr.Arguments[0], (TypeReference)expr.Operand);
 					}
 					return typeSystem.TypedReference;
+				case ILCode.Refanytype:
+					if (forceInferChildren) {
+						InferTypeForExpression(expr.Arguments[0], typeSystem.TypedReference);
+					}
+					return new TypeReference("System", "RuntimeTypeHandle", module, module, true);
+				case ILCode.Refanyval:
+					if (forceInferChildren) {
+						InferTypeForExpression(expr.Arguments[0], typeSystem.TypedReference);
+					}
+					return new ByReferenceType((TypeReference)expr.Operand);
+				case ILCode.AddressOf:
+					{
+						TypeReference t = InferTypeForExpression(expr.Arguments[0], UnpackPointer(expectedType));
+						return t != null ? new ByReferenceType(t) : null;
+					}
 					#endregion
 					#region Arithmetic instructions
 				case ILCode.Not: // bitwise complement
@@ -489,14 +514,47 @@ namespace ICSharpCode.Decompiler.ILAst
 				case ILCode.Rem_Un:
 					return InferArgumentsInBinaryOperator(expr, false, expectedType);
 				case ILCode.Shl:
-				case ILCode.Shr:
 					if (forceInferChildren)
 						InferTypeForExpression(expr.Arguments[1], typeSystem.Int32);
-					return InferTypeForExpression(expr.Arguments[0], typeSystem.Int32);
+					if (expectedType != null && (
+						expectedType.MetadataType == MetadataType.Int32 || expectedType.MetadataType == MetadataType.UInt32 ||
+						expectedType.MetadataType == MetadataType.Int64 || expectedType.MetadataType == MetadataType.UInt64)
+					   )
+						return NumericPromotion(InferTypeForExpression(expr.Arguments[0], expectedType));
+					else
+						return NumericPromotion(InferTypeForExpression(expr.Arguments[0], null));
+				case ILCode.Shr:
 				case ILCode.Shr_Un:
+					{
 						if (forceInferChildren)
 							InferTypeForExpression(expr.Arguments[1], typeSystem.Int32);
-					return InferTypeForExpression(expr.Arguments[0], typeSystem.UInt32);
+						TypeReference type = NumericPromotion(InferTypeForExpression(expr.Arguments[0], null));
+						TypeReference expectedInputType = null;
+						switch (type.MetadataType) {
+							case MetadataType.Int32:
+								if (expr.Code == ILCode.Shr_Un)
+									expectedInputType = typeSystem.UInt32;
+								break;
+							case MetadataType.UInt32:
+								if (expr.Code == ILCode.Shr)
+									expectedInputType = typeSystem.Int32;
+								break;
+							case MetadataType.Int64:
+								if (expr.Code == ILCode.Shr_Un)
+									expectedInputType = typeSystem.UInt64;
+								break;
+							case MetadataType.UInt64:
+								if (expr.Code == ILCode.Shr)
+									expectedInputType = typeSystem.UInt64;
+								break;
+						}
+						if (expectedInputType != null) {
+							InferTypeForExpression(expr.Arguments[0], expectedInputType);
+							return expectedInputType;
+						} else {
+							return type;
+						}
+					}
 				case ILCode.CompoundAssignment:
 					{
 						TypeReference varType = InferTypeForExpression(expr.Arguments[0].Arguments[0], null);
@@ -517,9 +575,19 @@ namespace ICSharpCode.Decompiler.ILAst
 				case ILCode.Ldc_I4:
 					if (IsBoolean(expectedType) && ((int)expr.Operand == 0 || (int)expr.Operand == 1))
 						return typeSystem.Boolean;
-					return (IsIntegerOrEnum(expectedType) || expectedType is PointerType) ? expectedType : typeSystem.Int32;
+					if (expectedType is PointerType && (int)expr.Operand == 0)
+						return expectedType;
+					if (IsIntegerOrEnum(expectedType) && OperandFitsInType(expectedType, (int)expr.Operand))
+						return expectedType;
+					else
+						return typeSystem.Int32;
 				case ILCode.Ldc_I8:
-					return (IsIntegerOrEnum(expectedType) || expectedType is PointerType) ? expectedType : typeSystem.Int64;
+					if (expectedType is PointerType && (long)expr.Operand == 0)
+						return expectedType;
+					if (IsIntegerOrEnum(expectedType) && GetInformationAmount(expectedType) >= NativeInt)
+						return expectedType;
+					else
+						return typeSystem.Int64;
 				case ILCode.Ldc_R4:
 					return typeSystem.Single;
 				case ILCode.Ldc_R8:
@@ -542,11 +610,13 @@ namespace ICSharpCode.Decompiler.ILAst
 						InferTypeForExpression(expr.Arguments.Single(), typeSystem.Int32);
 					return new ArrayType((TypeReference)expr.Operand);
 				case ILCode.InitArray:
-					if (forceInferChildren) {
+					var operandAsArrayType = (ArrayType)expr.Operand;
+					if (forceInferChildren)
+					{
 						foreach (ILExpression arg in expr.Arguments)
-							InferTypeForExpression(arg, (TypeReference)expr.Operand);
+							InferTypeForExpression(arg, operandAsArrayType.ElementType);
 					}
-					return new ArrayType((TypeReference)expr.Operand);
+					return operandAsArrayType;
 				case ILCode.Ldlen:
 					return typeSystem.Int32;
 				case ILCode.Ldelem_U1:
@@ -655,6 +725,8 @@ namespace ICSharpCode.Decompiler.ILAst
 				case ILCode.Castclass:
 				case ILCode.Unbox_Any:
 					return (TypeReference)expr.Operand;
+				case ILCode.Unbox:
+					return new ByReferenceType((TypeReference)expr.Operand);
 				case ILCode.Isinst:
 					{
 						// isinst performs the equivalent of a cast only for reference types;
@@ -723,6 +795,41 @@ namespace ICSharpCode.Decompiler.ILAst
 			}
 		}
 		
+		/// <summary>
+		/// Wraps 'type' in a ByReferenceType if it is a value type. If a constrained prefix is specified,
+		/// returns the constrained type wrapped in a ByReferenceType.
+		/// </summary>
+		TypeReference MakeRefIfValueType(TypeReference type, ILExpressionPrefix constrainedPrefix)
+		{
+			if (constrainedPrefix != null)
+				return new ByReferenceType((TypeReference)constrainedPrefix.Operand);
+			if (type.IsValueType)
+				return new ByReferenceType(type);
+			else
+				return type;
+		}
+		
+		/// <summary>
+		/// Promotes primitive types smaller than int32 to int32.
+		/// </summary>
+		/// <remarks>
+		/// Always promotes to signed int32.
+		/// </remarks>
+		TypeReference NumericPromotion(TypeReference type)
+		{
+			if (type == null)
+				return null;
+			switch (type.MetadataType) {
+				case MetadataType.SByte:
+				case MetadataType.Int16:
+				case MetadataType.Byte:
+				case MetadataType.UInt16:
+					return typeSystem.Int32;
+				default:
+					return type;
+			}
+		}
+		
 		TypeReference HandleConversion(int targetBitSize, bool targetSigned, ILExpression arg, TypeReference expectedType, TypeReference targetType)
 		{
 			if (targetBitSize >= NativeInt && expectedType is PointerType) {
@@ -743,12 +850,12 @@ namespace ICSharpCode.Decompiler.ILAst
 			return resultType;
 		}
 		
-		static TypeReference GetFieldType(FieldReference fieldReference)
+		public static TypeReference GetFieldType(FieldReference fieldReference)
 		{
 			return SubstituteTypeArgs(UnpackModifiers(fieldReference.FieldType), fieldReference);
 		}
 		
-		static TypeReference SubstituteTypeArgs(TypeReference type, MemberReference member)
+		public static TypeReference SubstituteTypeArgs(TypeReference type, MemberReference member)
 		{
 			if (type is TypeSpecification) {
 				ArrayType arrayType = type as ArrayType;
@@ -821,7 +928,7 @@ namespace ICSharpCode.Decompiler.ILAst
 			return null;
 		}
 		
-		static TypeReference UnpackModifiers(TypeReference type)
+		internal static TypeReference UnpackModifiers(TypeReference type)
 		{
 			while (type is OptionalModifierType || type is RequiredModifierType)
 				type = ((TypeSpecification)type).ElementType;
@@ -927,7 +1034,7 @@ namespace ICSharpCode.Decompiler.ILAst
 		{
 			if (type == null)
 				return 0;
-			if (type.IsValueType) {
+			if (type.IsValueType && !IsArrayPointerOrReference(type)) {
 				// value type might be an enum
 				TypeDefinition typeDef = type.Resolve() as TypeDefinition;
 				if (typeDef != null && typeDef.IsEnum) {
@@ -975,7 +1082,9 @@ namespace ICSharpCode.Decompiler.ILAst
 
 		public static bool IsEnum(TypeReference type)
 		{
-			if (type == null)
+			// Arrays/Pointers/ByReference resolve to their element type, but we don't want to consider those to be enums
+			// However, GenericInstanceTypes, ModOpts etc. should be considered enums.
+			if (type == null || IsArrayPointerOrReference(type))
 				return false;
 			// unfortunately we cannot rely on type.IsValueType here - it's not set when the instruction operand is a typeref (as opposed to a typespec)
 			TypeDefinition typeDef = type.Resolve() as TypeDefinition;
@@ -984,7 +1093,7 @@ namespace ICSharpCode.Decompiler.ILAst
 		
 		static bool? IsSigned(TypeReference type)
 		{
-			if (type == null)
+			if (type == null || IsArrayPointerOrReference(type))
 				return null;
 			// unfortunately we cannot rely on type.IsValueType here - it's not set when the instruction operand is a typeref (as opposed to a typespec)
 			TypeDefinition typeDef = type.Resolve() as TypeDefinition;
@@ -1011,6 +1120,39 @@ namespace ICSharpCode.Decompiler.ILAst
 			}
 		}
 		
+		static bool OperandFitsInType(TypeReference type, int num)
+		{
+			TypeDefinition typeDef = type.Resolve() as TypeDefinition;
+			if (typeDef != null && typeDef.IsEnum) {
+				type = typeDef.Fields.Single(f => f.IsRuntimeSpecialName && !f.IsStatic).FieldType;
+			}
+			switch (type.MetadataType) {
+				case MetadataType.SByte:
+					return sbyte.MinValue <= num && num <= sbyte.MaxValue;
+				case MetadataType.Int16:
+					return short.MinValue <= num && num <= short.MaxValue;
+				case MetadataType.Byte:
+					return byte.MinValue <= num && num <= byte.MaxValue;
+				case MetadataType.Char:
+					return char.MinValue <= num && num <= char.MaxValue;
+				case MetadataType.UInt16:
+					return ushort.MinValue <= num && num <= ushort.MaxValue;
+				default:
+					return true;
+			}
+		}
+		
+		static bool IsArrayPointerOrReference(TypeReference type)
+		{
+			TypeSpecification typeSpec = type as TypeSpecification;
+			while (typeSpec != null) {
+				if (typeSpec is ArrayType || typeSpec is PointerType || typeSpec is ByReferenceType)
+					return true;
+				typeSpec = typeSpec.ElementType as TypeSpecification;
+			}
+			return false;
+		}
+		
 		public static TypeCode GetTypeCode(TypeReference type)
 		{
 			if (type == null)

src/Libraries/ICSharpCode.Decompiler/ILAst/YieldReturnDecompiler.cs

@@ -1,5 +1,20 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
 using System.Collections.Generic;
@@ -164,7 +179,7 @@ namespace ICSharpCode.Decompiler.ILAst
 		
 		public static bool IsCompilerGeneratorEnumerator(TypeDefinition type)
 		{
-			if (!(type.Name.StartsWith("<", StringComparison.Ordinal) && type.IsCompilerGenerated()))
+			if (!(type.DeclaringType != null && type.IsCompilerGenerated()))
 				return false;
 			foreach (TypeReference i in type.Interfaces) {
 				if (i.Namespace == "System.Collections" && i.Name == "IEnumerator")

src/Libraries/ICSharpCode.Decompiler/ITextOutput.cs

@@ -23,6 +23,9 @@ namespace ICSharpCode.Decompiler
 {
 	public interface ITextOutput
 	{
+		int CurrentLine { get; }
+		int CurrentColumn { get; }
+		
 		void Indent();
 		void Unindent();
 		void Write(char ch);

src/Libraries/ICSharpCode.Decompiler/PlainTextOutput.cs

@@ -23,9 +23,13 @@ namespace ICSharpCode.Decompiler
 {
 	public sealed class PlainTextOutput : ITextOutput
 	{
+		const int TAB_SIZE = 4;
+		
 		readonly TextWriter writer;
 		int indent;
 		bool needsIndent;
+		int lineNumber = 1;
+		int columnNumber = 1;
 		
 		public PlainTextOutput(TextWriter writer)
 		{
@@ -39,6 +43,14 @@ namespace ICSharpCode.Decompiler
 			this.writer = new StringWriter();
 		}
 		
+		public int CurrentLine {
+			get { return lineNumber; }
+		}
+		
+		public int CurrentColumn { 
+			get { return columnNumber; }
+		}
+		
 		public override string ToString()
 		{
 			return writer.ToString();
@@ -60,6 +72,7 @@ namespace ICSharpCode.Decompiler
 				needsIndent = false;
 				for (int i = 0; i < indent; i++) {
 					writer.Write('\t');
+					columnNumber += TAB_SIZE - 1;
 				}
 			}
 		}
@@ -68,18 +81,22 @@ namespace ICSharpCode.Decompiler
 		{
 			WriteIndent();
 			writer.Write(ch);
+			columnNumber++;
 		}
 		
 		public void Write(string text)
 		{
 			WriteIndent();
 			writer.Write(text);
+			columnNumber += text.Length;
 		}
 		
 		public void WriteLine()
 		{
+			lineNumber++;
 			writer.WriteLine();
 			needsIndent = true;
+			columnNumber = TAB_SIZE * indent;
 		}
 		
 		public void WriteDefinition(string text, object definition)

src/Libraries/ICSharpCode.Decompiler/Properties/AssemblyInfo.cs

@@ -19,6 +19,8 @@ using System.Runtime.InteropServices;
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.
 [assembly: ComVisible(false)]
 
+[assembly: AssemblyVersion("2.0.0.1221")]
+[assembly: AssemblyInformationalVersion("2.0.0.1221-26633dc2")]
 [assembly: NeutralResourcesLanguage("en-US")]
 
 [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2243:AttributeStringLiteralsShouldParseCorrectly",

src/Libraries/ICSharpCode.Decompiler/Properties/AssemblyInfo.template.cs

@@ -0,0 +1,27 @@
+#region Using directives
+
+using System;
+using System.Resources;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+#endregion
+
+[assembly: AssemblyTitle("ICSharpCode.Decompiler")]
+[assembly: AssemblyDescription("IL decompiler engine")]
+[assembly: AssemblyCompany("ic#code")]
+[assembly: AssemblyProduct("ILSpy")]
+[assembly: AssemblyCopyright("Copyright 2011 AlphaSierraPapa for the SharpDevelop Team")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// This sets the default COM visibility of types in the assembly to invisible.
+// If you need to expose a type to COM, use [ComVisible(true)] on that type.
+[assembly: ComVisible(false)]
+
+[assembly: AssemblyVersion("$INSERTVERSION$")]
+[assembly: AssemblyInformationalVersion("$INSERTVERSION$$INSERTBRANCHPOSTFIX$$INSERTVERSIONNAMEPOSTFIX$-$INSERTSHORTCOMMITHASH$")]
+[assembly: NeutralResourcesLanguage("en-US")]
+
+[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2243:AttributeStringLiteralsShouldParseCorrectly",
+	Justification = "AssemblyInformationalVersion does not need to be a parsable version")]

src/Libraries/ICSharpCode.Decompiler/ReferenceResolvingException.cs

@@ -0,0 +1,68 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace ICSharpCode.Decompiler
+{
+	/// <summary>
+	/// Represents an error while resolving a reference to a type or a member.
+	/// </summary>
+	[Serializable]
+	public class ReferenceResolvingException : Exception
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="T:ResolveException"/> class
+		/// </summary>
+		public ReferenceResolvingException()
+		{
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="T:ResolveException"/> class
+		/// </summary>
+		/// <param name="message">A <see cref="T:System.String"/> that describes the error. The content of message is intended to be understood by humans. The caller of this constructor is required to ensure that this string has been localized for the current system culture.</param>
+		public ReferenceResolvingException(string message)
+			: base(message)
+		{
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="T:ResolveException"/> class
+		/// </summary>
+		/// <param name="message">A <see cref="T:System.String"/> that describes the error. The content of message is intended to be understood by humans. The caller of this constructor is required to ensure that this string has been localized for the current system culture.</param>
+		/// <param name="inner">The exception that is the cause of the current exception. If the innerException parameter is not a null reference, the current exception is raised in a catch block that handles the inner exception.</param>
+		public ReferenceResolvingException(string message, Exception inner)
+			: base(message, inner)
+		{
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="T:ResolveException"/> class
+		/// </summary>
+		/// <param name="info">The object that holds the serialized object data.</param>
+		/// <param name="context">The contextual information about the source or destination.</param>
+		protected ReferenceResolvingException(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context)
+			: base(info, context)
+		{
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/BooleanConsumedAsInteger.il

@@ -0,0 +1,59 @@
+.assembly extern mscorlib
+{
+  .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )
+  .ver 4:0:0:0
+}
+.assembly BooleanConsumedAsInteger
+{
+  .hash algorithm 0x00008004
+  .ver 1:0:0:0
+}
+.module BooleanConsumedAsInteger.exe
+.imagebase 0x00400000
+.file alignment 0x00000200
+.stackreserve 0x00100000
+.subsystem 0x0003       // WINDOWS_CUI
+.corflags 0x00000003    //  ILONLY 32BITREQUIRED
+
+.class private auto ansi beforefieldinit BooleanConsumedAsInteger.Program extends [mscorlib]System.Object
+{
+  .method public hidebysig static void  Main(string[] args) cil managed
+  {
+    .entrypoint
+    .maxstack  8
+	
+	ret
+  }
+
+  .method public hidebysig static int32 ReturnBoolAsInt() cil managed
+  {
+	ldnull
+	ldnull
+	call bool [mscorlib] System.Object::Equals(object, object)
+	ret
+  }
+
+  .method public hidebysig static int32 BitwiseOperationOnBool() cil managed
+  {
+	ldnull
+	ldnull
+	call bool [mscorlib] System.Object::Equals(object, object)
+	ldc.i4 255
+	and
+	ret
+  }
+
+  .method public hidebysig specialname rtspecialname 
+          instance void  .ctor() cil managed
+  {
+    // Code size       7 (0x7)
+    .maxstack  8
+    IL_0000:  ldarg.0
+    IL_0001:  call       instance void [mscorlib]System.Object::.ctor()
+    IL_0006:  ret
+  } // end of method Program::.ctor
+
+} // end of class StackTests.Program
+
+
+// =============================================================

src/Libraries/ICSharpCode.Decompiler/Tests/CallOverloadedMethod.cs

@@ -0,0 +1,52 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+
+public class CallOverloadedMethod
+{
+	public void OverloadedMethod(object a)
+	{
+	}
+	
+	public void OverloadedMethod(int? a)
+	{
+	}
+	
+	public void OverloadedMethod(string a)
+	{
+	}
+	
+	public void Call()
+	{
+		this.OverloadedMethod("(string)");
+		this.OverloadedMethod((object)"(object)");
+		this.OverloadedMethod(5);
+		this.OverloadedMethod((object)5);
+		this.OverloadedMethod(5L);
+		this.OverloadedMethod((object)null);
+		this.OverloadedMethod((string)null);
+		this.OverloadedMethod((int?)null);
+	}
+	
+	public void CallMethodUsingInterface(List<int> list)
+	{
+		((ICollection<int>)list).Clear();
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs

@@ -0,0 +1,66 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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.
+
+public class CheckedUnchecked
+{
+	public int Operators(int a, int b)
+	{
+		int num = checked(a + b);
+		int num2 = a + b;
+		int num3 = checked(a - b);
+		int num4 = a - b;
+		int num5 = checked(a * b);
+		int num6 = a * b;
+		int num7 = a / b;
+		int num8 = a % b;
+		// The division operators / and % only exist in one form (checked vs. unchecked doesn't matter for them)
+		return num * num2 * num3 * num4 * num5 * num6 * num7 * num8;
+	}
+	
+	public int Cast(int a)
+	{
+		short num = checked((short)a);
+		short num2 = (short)a;
+		byte b = checked((byte)a);
+		byte b2 = (byte)a;
+		return num * num2 * b * b2;
+	}
+	
+	public void ForWithCheckedIteratorAndUncheckedBody(int n)
+	{
+		checked
+		{
+			for (int i = n + 1; i < n + 1; i++)
+			{
+				n = unchecked(i * i);
+			}
+		}
+	}
+	
+	public void ForWithCheckedInitializerAndUncheckedIterator(int n)
+	{
+		checked
+		{
+			int i = n;
+			for (i -= 10; i < n; i = unchecked(i + 1))
+			{
+				n--;
+			}
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CodeSampleFileParser.cs

@@ -0,0 +1,132 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.IO;
+
+namespace ICSharpCode.Decompiler.Tests
+{
+	static class CodeSampleFileParser
+	{
+		public static IEnumerable<string> ListSections(string s)
+		{
+			var query = from line in ToLines(s)
+						let sectionName = ReadSectionName(line)
+						where sectionName != null
+						select sectionName;
+			return query;
+		}
+
+		public static string GetSection(string sectionName, string s)
+		{
+			var lines = ToLines(s);
+
+			bool sectionFound = false;
+			var sectionText = new StringBuilder();
+
+			Action<string> parser = null;
+
+			Action<string> commonSectionReader = line =>
+				{
+					if (IsCommonSectionEnd(line))
+						parser = null;
+					else
+						sectionText.AppendLine(line);
+				};
+
+			Action<string> namedSectionReader = line =>
+				{
+					string name = ReadSectionName(line);
+					if (name == null)
+						sectionText.AppendLine(line);
+					else if (name != sectionName)
+						parser = null;
+				};
+
+			Action<string> defaultReader = line =>
+				{
+					if (IsCommonSectionStart(line))
+						parser = commonSectionReader;
+					else if (ReadSectionName(line) == sectionName)
+					{
+						parser = namedSectionReader;
+						sectionFound = true;
+					}
+				};
+
+			foreach(var line in lines)
+			{
+				(parser ?? defaultReader)(line);
+			}
+
+			if (sectionFound)
+				return sectionText.ToString();
+			else
+				return "";
+		}
+
+		public static bool IsCommentOrBlank(string s)
+		{
+			if(String.IsNullOrWhiteSpace(s))
+				return true;
+			return s.Trim().StartsWith("//");
+		}
+
+		public static string ConcatLines(IEnumerable<string> lines)
+		{
+			var buffer = new StringBuilder();
+			foreach (var line in lines)
+			{
+				buffer.AppendLine(line);
+			}
+			return buffer.ToString();
+		}
+
+		static string ReadSectionName(string line)
+		{
+			line = line.TrimStart();
+			if (line.StartsWith("//$$"))
+				return line.Substring(4).Trim();
+			else
+				return null;
+		}
+
+		static bool IsCommonSectionStart(string line)
+		{
+			return line.Trim() == "//$CS";
+		}
+
+		static bool IsCommonSectionEnd(string line)
+		{
+			return line.Trim() == "//$CE";
+		}
+
+		static IEnumerable<string> ToLines(string s)
+		{
+			var reader = new StringReader(s);
+			string line;
+			while ((line = reader.ReadLine()) != null)
+			{
+				yield return line;
+			}
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CustomAttributes.code.cs

@@ -0,0 +1,41 @@
+using System;
+namespace aa
+{
+	public static class CustomAtributes
+	{
+		[Flags]
+		public enum EnumWithFlag
+		{
+			All = 15,
+			None = 0,
+			Item1 = 1,
+			Item2 = 2,
+			Item3 = 4,
+			Item4 = 8
+		}
+		[AttributeUsage(AttributeTargets.All)]
+		public class MyAttribute : Attribute
+		{
+			public MyAttribute(CustomAtributes.EnumWithFlag en)
+			{
+			}
+		}
+		[CustomAtributes.MyAttribute(CustomAtributes.EnumWithFlag.Item1 | CustomAtributes.EnumWithFlag.Item2)]
+		private static int field;
+		[CustomAtributes.MyAttribute(CustomAtributes.EnumWithFlag.All)]
+		public static string Property
+		{
+			get
+			{
+				return "aa";
+			}
+		}
+		[Obsolete("some message")]
+		public static void ObsoletedMethod()
+		{
+			Console.WriteLine("{0} $$$ {1}", AttributeTargets.Interface, AttributeTargets.Property | AttributeTargets.Field);
+			AttributeTargets attributeTargets = AttributeTargets.Property | AttributeTargets.Field;
+			Console.WriteLine("{0} $$$ {1}", AttributeTargets.Interface, attributeTargets);
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CustomAttributes/CustomAttributeTests.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using NUnit.Framework;
+
+namespace ICSharpCode.Decompiler.Tests.CustomAttributes
+{
+	[TestFixture]
+	public class CustomAttributeTests : DecompilerTestBase
+	{
+		[Test]
+		public void CustomAttributeSamples()
+		{
+			ValidateFileRoundtrip(@"CustomAttributes\S_CustomAttributeSamples.cs");
+		}
+
+		[Test]
+		public void CustomAttributesMultiTest()
+		{
+			ValidateFileRoundtrip(@"CustomAttributes\S_CustomAttributes.cs");
+		}
+
+		[Test]
+		public void AssemblyCustomAttributesMultiTest()
+		{
+			ValidateFileRoundtrip(@"CustomAttributes\S_AssemblyCustomAttribute.cs");
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CustomAttributes/S_AssemblyCustomAttribute.cs

@@ -0,0 +1,6 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+
+[assembly: CLSCompliant(false)]

src/Libraries/ICSharpCode.Decompiler/Tests/CustomAttributes/S_CustomAttributeSamples.cs

@@ -0,0 +1,480 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+//$CS
+using System;
+//$CE
+
+//$$ TargetModule (ignored)
+//[module: CLSCompliantAttribute(false)]
+//$$ ParameterlessAttributeUsage
+namespace ParameterLessAttributeUsage
+{
+	[Flags]
+	public enum EnumWithFlagsAttribute
+	{
+		None = 0
+	}
+}
+//$$ AttributeWithEnumArgument
+namespace AttributeWithEnumArgument
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+}
+//$$ AttributeWithEnumExpressionArgument
+namespace AttributeWithEnumExpressionArgument
+{
+	[AttributeUsage(AttributeTargets.Method | AttributeTargets.Interface)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+}
+//$$ AttributeWithStringExpressionArgument
+namespace AttributeWithStringExpressionArgument
+{
+	[Obsolete("message")]
+	public class ObsoletedClass
+	{
+	}
+}
+//$$ AttributeWithTypeArgument
+namespace AttributeWithTypeArgument
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyTypeAttribute : Attribute
+	{
+		public MyTypeAttribute(Type t)
+		{
+		}
+	}
+
+	[MyType(typeof(Attribute))]
+	public class SomeClass
+	{
+	}
+}
+//$$ AppliedToEvent
+namespace AppliedToEvent
+{
+	[AttributeUsage(AttributeTargets.Event)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class TestClass
+	{
+		[MyAttribute]
+		public event EventHandler MyEvent;
+	}
+}
+//$$ AppliedToField
+namespace AppliedToField
+{
+	[AttributeUsage(AttributeTargets.Field)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class TestClass
+	{
+		[MyAttribute]
+		public int Field;
+	}
+}
+//$$ AppliedToProperty
+namespace AppliedToProperty
+{
+	public class TestClass
+	{
+		[Obsolete("reason")]
+		public int Property
+		{
+			get
+			{
+				return 0;
+			}
+		}
+	}
+}
+//$$ AppliedToPropertyGet
+namespace AppliedToPropertyGet
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class TestClass
+	{
+		public int Property
+		{
+			[MyAttribute]
+			get
+			{
+				return 0;
+			}
+		}
+	}
+}
+//$$ AppliedToPropertySet
+namespace AppliedToPropertySet
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class TestClass
+	{
+		public int Property
+		{
+			get
+			{
+				return 3;
+			}
+			[MyAttribute]
+			set
+			{
+			}
+		}
+	}
+}
+//$$ AppliedToIndexer
+namespace AppliedToIndexer
+{
+	public class TestClass
+	{
+		[Obsolete("reason")]
+		public int this[int i]
+		{
+			get
+			{
+				return 0;
+			}
+		}
+	}
+}
+//$$ AppliedToDelegate
+[Obsolete("reason")]
+public delegate int AppliedToDelegate();
+//$$ AppliedToMethod
+namespace AppliedToMethod
+{
+	[AttributeUsage(AttributeTargets.Method)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class TestClass
+	{
+		[MyAttribute]
+		public void Method()
+		{
+		}
+	}
+}
+//$$ AppliedToInterface
+[Obsolete("reason")]
+public interface AppliedToInterface
+{
+}
+//$$ AppliedToStruct
+[Obsolete("reason")]
+public struct AppliedToStruct
+{
+	public int Field;
+}
+//$$ AppliedToParameter
+namespace AppliedToParameter
+{
+	[AttributeUsage(AttributeTargets.Parameter)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public void Method([MyAttribute] int val)
+		{
+		}
+	}
+}
+//$$ NamedInitializerProperty
+namespace NamedInitializerProperty
+{
+	[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+}
+//$$ NamedInitializerPropertyString
+namespace NamedInitializerPropertyString
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+		public string Prop
+		{
+			get
+			{
+				return "";
+			}
+			set
+			{
+			}
+		}
+	}
+	[MyAttribute(Prop = "value")]
+	public class MyClass
+	{
+	}
+}
+//$$ NamedInitializerPropertyType
+namespace NamedInitializerPropertyType
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+		public Type Prop
+		{
+			get
+			{
+				return null;
+			}
+			set
+			{
+			}
+		}
+	}
+	[MyAttribute(Prop = typeof(Enum))]
+	public class MyClass
+	{
+	}
+}
+//$$ NamedInitializerPropertyEnum
+namespace NamedInitializerPropertyEnum
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+		public AttributeTargets Prop
+		{
+			get
+			{
+				return AttributeTargets.All;
+			}
+			set
+			{
+			}
+		}
+	}
+	[MyAttribute(Prop = (AttributeTargets.Class | AttributeTargets.Method))]
+	public class MyClass
+	{
+	}
+}
+//$$ NamedInitializerFieldEnum
+namespace NamedInitializerFieldEnum
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+		public AttributeTargets Field;
+	}
+	[MyAttribute(Field = (AttributeTargets.Class | AttributeTargets.Method))]
+	public class MyClass
+	{
+	}
+}
+//$$ TargetReturn
+namespace TargetReturn
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		[return: MyAttribute]
+		public int MyMethod()
+		{
+			return 5;
+		}
+	}
+}
+//$$ TargetPropertyGetReturn
+namespace TargetPropertyGetReturn
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int Prop
+		{
+			[return: MyAttribute]
+			get
+			{
+				return 3;
+			}
+		}
+	}
+}
+//$$ TargetPropertySetParam
+namespace TargetPropertySetParam
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int Prop
+		{
+			[param: MyAttribute]
+			set
+			{
+			}
+		}
+	}
+}
+//$$ TargetPropertySetReturn
+namespace TargetPropertySetReturn
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int Prop
+		{
+			get
+			{
+				return 3;
+			}
+			[return: MyAttribute]
+			set
+			{
+			}
+		}
+	}
+}
+//$$ TargetPropertyIndexGetReturn
+namespace TargetPropertyIndexGetReturn
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int this[string s]
+		{
+			[return: MyAttribute]
+			get
+			{
+				return 3;
+			}
+		}
+	}
+}
+//$$ TargetPropertyIndexParamOnlySet
+namespace TargetPropertyIndexParamOnlySet
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int this[[MyAttribute] string s]
+		{
+			set
+			{
+			}
+		}
+	}
+}
+//$$ TargetPropertyIndexParamOnlyGet
+namespace TargetPropertyIndexParamOnlyGet
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public int this[[MyAttribute] string s]
+		{
+			get
+			{
+				return 3;
+			}
+		}
+	}
+}
+//$$ TargetPropertyIndexSetReturn
+namespace TargetPropertyIndexSetReturn
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass
+	{
+		public string this[int index]
+		{
+			get
+			{
+				return "";
+			}
+			[return: MyAttribute]
+			set
+			{
+			}
+		}
+	}
+}
+//$$ TargetPropertyIndexSetMultiParam
+namespace TargetPropertyIndexSetMultiParam
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+		public int Field;
+	}
+	public class MyClass
+	{
+		public string this[[MyAttribute(Field = 2)] int index1, [MyAttribute(Field = 3)] int index2]
+		{
+			get
+			{
+				return "";
+			}
+			[param: MyAttribute]
+			set
+			{
+			}
+		}
+	}
+}
+//$$ ClassAttributeOnTypeParameter
+namespace ClassAttributeOnTypeParameter
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	public class MyClass<[MyAttribute] T>
+	{
+	}
+}
+//$$ AttributeOnReturnTypeOfDelegate
+namespace AttributeOnReturnTypeOfDelegate
+{
+	[AttributeUsage(AttributeTargets.All)]
+	public class MyAttributeAttribute : Attribute
+	{
+	}
+	[return: MyAttribute]
+	public delegate void Test();
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CustomAttributes/S_CustomAttributes.cs

@@ -0,0 +1,64 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+
+namespace aa
+{
+	public static class CustomAttributes
+	{
+		[Flags]
+		public enum EnumWithFlag
+		{
+			All = 15,
+			None = 0,
+			Item1 = 1,
+			Item2 = 2,
+			Item3 = 4,
+			Item4 = 8
+		}
+		[AttributeUsage(AttributeTargets.All)]
+		public class MyAttribute : Attribute
+		{
+			public MyAttribute(object val)
+			{
+			}
+		}
+		[CustomAttributes.MyAttribute(CustomAttributes.EnumWithFlag.Item1 | CustomAttributes.EnumWithFlag.Item2)]
+		private static int field;
+		[CustomAttributes.MyAttribute(CustomAttributes.EnumWithFlag.All)]
+		public static string Property
+		{
+			get
+			{
+				return "aa";
+			}
+		}
+		[Obsolete("some message")]
+		public static void ObsoletedMethod()
+		{
+			//Console.WriteLine("{0} $$$ {1}", AttributeTargets.Interface, (AttributeTargets)(AttributeTargets.Property | AttributeTargets.Field));
+			Console.WriteLine("{0} $$$ {1}", AttributeTargets.Interface, AttributeTargets.Property | AttributeTargets.Field);
+			AttributeTargets attributeTargets = AttributeTargets.Property | AttributeTargets.Field;
+			Console.WriteLine("{0} $$$ {1}", AttributeTargets.Interface, attributeTargets);
+		}
+		// No Boxing
+		[CustomAttributes.MyAttribute(new StringComparison[]
+		{
+			StringComparison.Ordinal, 
+			StringComparison.CurrentCulture
+		})]
+		public static void ArrayAsAttribute1()
+		{
+		}
+		// Boxing of each array element
+		[CustomAttributes.MyAttribute(new object[]
+		{
+			StringComparison.Ordinal, 
+			StringComparison.CurrentCulture
+		})]
+		public static void ArrayAsAttribute2()
+		{
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/CustomShortCircuitOperators.cs

@@ -0,0 +1,90 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+
+public static class CustomShortCircuitOperators
+{
+	private class B
+	{
+		public static bool operator true(CustomShortCircuitOperators.B x)
+		{
+			return true;
+		}
+
+		public static bool operator false(CustomShortCircuitOperators.B x)
+		{
+			return false;
+		}
+	}
+
+	private class C : CustomShortCircuitOperators.B
+	{
+		public static CustomShortCircuitOperators.C operator &(CustomShortCircuitOperators.C x, CustomShortCircuitOperators.C y)
+		{
+			return null;
+		}
+		
+		public static CustomShortCircuitOperators.C operator |(CustomShortCircuitOperators.C x, CustomShortCircuitOperators.C y)
+		{
+			return null;
+		}
+		
+		public static bool operator !(CustomShortCircuitOperators.C x)
+		{
+			return false;
+		}
+
+		private static void Main()
+		{
+			CustomShortCircuitOperators.C c = new CustomShortCircuitOperators.C();
+			CustomShortCircuitOperators.C c2 = new CustomShortCircuitOperators.C();
+			CustomShortCircuitOperators.C c3 = c && c2;
+			CustomShortCircuitOperators.C c4 = c || c2;
+			Console.WriteLine(c3.ToString());
+			Console.WriteLine(c4.ToString());
+		}
+		
+		private static void Test2()
+		{
+			CustomShortCircuitOperators.C c = new CustomShortCircuitOperators.C();
+			if (c && c)
+			{
+				Console.WriteLine(c.ToString());
+			}
+			
+			if (!(c && c))
+			{
+				Console.WriteLine(c.ToString());
+			}
+		}
+		
+		private static void Test3()
+		{
+			CustomShortCircuitOperators.C c = new CustomShortCircuitOperators.C();
+			if (c)
+			{
+				Console.WriteLine(c.ToString());
+			}
+			if (!c)
+			{
+				Console.WriteLine(c.ToString());
+			}
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/DecompilerTestBase.cs

@@ -0,0 +1,93 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.CodeDom.Compiler;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+using ICSharpCode.Decompiler.Ast;
+using ICSharpCode.Decompiler.Tests.Helpers;
+using Microsoft.CSharp;
+using Mono.Cecil;
+using NUnit.Framework;
+
+namespace ICSharpCode.Decompiler.Tests
+{
+	public abstract class DecompilerTestBase
+	{
+		protected static void ValidateFileRoundtrip(string samplesFileName)
+		{
+			var lines = File.ReadAllLines(Path.Combine(@"..\..\Tests", samplesFileName));
+			var testCode = RemoveIgnorableLines(lines);
+			var decompiledTestCode = RoundtripCode(testCode);
+			CodeAssert.AreEqual(testCode, decompiledTestCode);
+		}
+
+		static string RemoveIgnorableLines(IEnumerable<string> lines)
+		{
+			return CodeSampleFileParser.ConcatLines(lines.Where(l => !CodeSampleFileParser.IsCommentOrBlank(l)));
+		}
+
+		/// <summary>
+		/// Compiles and decompiles a source code.
+		/// </summary>
+		/// <param name="code">The source code to copile.</param>
+		/// <returns>The decompilation result of compiled source code.</returns>
+		static string RoundtripCode(string code)
+		{
+			DecompilerSettings settings = new DecompilerSettings();
+			settings.FullyQualifyAmbiguousTypeNames = false;
+			AssemblyDefinition assembly = Compile(code);
+			AstBuilder decompiler = new AstBuilder(new DecompilerContext(assembly.MainModule) { Settings = settings });
+			decompiler.AddAssembly(assembly);
+			new Helpers.RemoveCompilerAttribute().Run(decompiler.CompilationUnit);
+			StringWriter output = new StringWriter();
+			decompiler.GenerateCode(new PlainTextOutput(output));
+			return output.ToString();
+		}
+
+		static AssemblyDefinition Compile(string code)
+		{
+			CSharpCodeProvider provider = new CSharpCodeProvider(new Dictionary<string, string> { { "CompilerVersion", "v4.0" } });
+			CompilerParameters options = new CompilerParameters();
+			options.ReferencedAssemblies.Add("System.Core.dll");
+			CompilerResults results = provider.CompileAssemblyFromSource(options, code);
+			try
+			{
+				if (results.Errors.Count > 0)
+				{
+					StringBuilder b = new StringBuilder("Compiler error:");
+					foreach (var error in results.Errors)
+					{
+						b.AppendLine(error.ToString());
+					}
+					throw new Exception(b.ToString());
+				}
+				return AssemblyDefinition.ReadAssembly(results.PathToAssembly);
+			}
+			finally
+			{
+				File.Delete(results.PathToAssembly);
+				results.TempFiles.Delete();
+			}
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/DelegateConstruction.cs

@@ -0,0 +1,189 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+
+public static class DelegateConstruction
+{
+	class InstanceTests
+	{
+		public Action CaptureOfThis()
+		{
+			return delegate {
+				CaptureOfThis();
+			};
+		}
+		
+		public Action CaptureOfThisAndParameter(int a)
+		{
+			return delegate {
+				CaptureOfThisAndParameter(a);
+			};
+		}
+		
+		public Action CaptureOfThisAndParameterInForEach(int a)
+		{
+			foreach (int item in Enumerable.Empty<int>()) {
+				if (item > 0) {
+					return delegate {
+						CaptureOfThisAndParameter(item + a);
+					};
+				}
+			}
+			return null;
+		}
+		
+		public Action CaptureOfThisAndParameterInForEachWithItemCopy(int a)
+		{
+			foreach (int item in Enumerable.Empty<int>()) {
+				int copyOfItem = item;
+				if (item > 0) {
+					return delegate {
+						CaptureOfThisAndParameter(item + a + copyOfItem);
+					};
+				}
+			}
+			return null;
+		}
+	}
+
+	public static void Test(this string a)
+	{
+	}
+
+	public static Action<string> ExtensionMethodUnbound()
+	{
+		return new Action<string>(DelegateConstruction.Test);
+	}
+
+	public static Action ExtensionMethodBound()
+	{
+		return new Action("abc".Test);
+	}
+
+	public static Action ExtensionMethodBoundOnNull()
+	{
+		return new Action(((string)null).Test);
+	}
+
+	public static object StaticMethod()
+	{
+		return new Func<Action>(DelegateConstruction.ExtensionMethodBound);
+	}
+
+	public static object InstanceMethod()
+	{
+		return new Func<string>("hello".ToUpper);
+	}
+
+	public static object InstanceMethodOnNull()
+	{
+		return new Func<string>(((string)null).ToUpper);
+	}
+
+	public static List<Action<int>> AnonymousMethodStoreWithinLoop()
+	{
+		List<Action<int>> list = new List<Action<int>>();
+		for (int i = 0; i < 10; i++)
+		{
+			int counter;
+			list.Add(delegate(int x)
+			         {
+			         	counter = x;
+			         }
+			        );
+		}
+		return list;
+	}
+
+	public static List<Action<int>> AnonymousMethodStoreOutsideLoop()
+	{
+		List<Action<int>> list = new List<Action<int>>();
+		int counter;
+		for (int i = 0; i < 10; i++)
+		{
+			list.Add(delegate(int x)
+			         {
+			         	counter = x;
+			         }
+			        );
+		}
+		return list;
+	}
+
+	public static Action StaticAnonymousMethodNoClosure()
+	{
+		return delegate
+		{
+			Console.WriteLine();
+		};
+	}
+
+	public static void NameConflict()
+	{
+		// i is captured variable,
+		// j is parameter in anonymous method
+		// k is local in anonymous method,
+		// l is local in main method
+		// Ensure that the decompiler doesn't introduce name conflicts
+		List<Action<int>> list = new List<Action<int>>();
+		for (int l = 0; l < 10; l++) {
+			int i;
+			for (i = 0; i < 10; i++) {
+				list.Add(
+					delegate (int j) {
+						for (int k = 0; k < i; k += j) {
+							Console.WriteLine();
+						}
+					});
+			}
+		}
+	}
+
+	public static void NameConflict2(int j)
+	{
+		List<Action<int>> list = new List<Action<int>>();
+		for (int k = 0; k < 10; k++) {
+			list.Add(
+				delegate(int i) {
+					Console.WriteLine(i);
+				});
+		}
+	}
+
+	public static Action<int> NameConflict3(int i)
+	{
+		return delegate(int j) {
+			for (int k = 0; k < j; k++) {
+				Console.WriteLine(k);
+			}
+		};
+	}
+	
+	public static Func<int, Func<int, int>> CurriedAddition(int a)
+	{
+		return b => c => a + b + c;
+	}
+	
+	public static Func<int, Func<int, Func<int, int>>> CurriedAddition2(int a)
+	{
+		return b => c => d => a + b + c + d;
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/ExceptionHandling.cs

@@ -0,0 +1,128 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Threading;
+
+public class ExceptionHandling
+{
+	public void MethodEndingWithEndFinally()
+	{
+		try
+		{
+			throw null;
+		}
+		finally
+		{
+			Console.WriteLine();
+		}
+	}
+	
+	public void MethodEndingWithRethrow()
+	{
+		try
+		{
+			throw null;
+		}
+		catch
+		{
+			throw;
+		}
+	}
+	
+	public void TryCatchFinally()
+	{
+		try
+		{
+			Console.WriteLine("Try");
+		}
+		catch (Exception ex)
+		{
+			Console.WriteLine(ex.Message);
+		}
+		finally
+		{
+			Console.WriteLine("Finally");
+		}
+	}
+	
+	public void TryCatchMultipleHandlers()
+	{
+		try
+		{
+			Console.WriteLine("Try");
+		}
+		catch (InvalidOperationException ex)
+		{
+			Console.WriteLine(ex.Message);
+		}
+		catch (Exception ex2)
+		{
+			Console.WriteLine(ex2.Message);
+		}
+		catch
+		{
+			Console.WriteLine("other");
+		}
+	}
+	
+	public void NoUsingStatementBecauseTheVariableIsAssignedTo()
+	{
+		CancellationTokenSource cancellationTokenSource = null;
+		try
+		{
+			cancellationTokenSource = new CancellationTokenSource();
+		}
+		finally
+		{
+			if (cancellationTokenSource != null)
+			{
+				cancellationTokenSource.Dispose();
+			}
+		}
+	}
+	
+	public void UsingStatementThatChangesTheVariable()
+	{
+		CancellationTokenSource cancellationTokenSource = null;
+		using (cancellationTokenSource)
+		{
+			cancellationTokenSource = new CancellationTokenSource();
+		}
+	}
+	
+	public void TwoCatchBlocksWithSameVariable()
+	{
+		try
+		{
+			Console.WriteLine("Try1");
+		}
+		catch (Exception ex)
+		{
+			Console.WriteLine(ex.Message);
+		}
+		try
+		{
+			Console.WriteLine("Try2");
+		}
+		catch (Exception ex)
+		{
+			Console.WriteLine(ex.Message);
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/Generics.cs

@@ -0,0 +1,105 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+
+public static class Generics
+{
+	public class MyArray<T>
+	{
+		public class NestedClass<Y>
+		{
+			public T Item1;
+			public Y Item2;
+		}
+		
+		public enum NestedEnum
+		{
+			A,
+			B
+		}
+		
+		private T[] arr;
+		
+		public MyArray(int capacity)
+		{
+			this.arr = new T[capacity];
+		}
+		
+		public void Size(int capacity)
+		{
+			Array.Resize<T>(ref this.arr, capacity);
+		}
+		
+		public void Grow(int capacity)
+		{
+			if (capacity >= this.arr.Length)
+			{
+				this.Size(capacity);
+			}
+		}
+	}
+	
+	public interface IInterface
+	{
+		void Method1<T>() where T : class;
+		void Method2<T>() where T : class;
+	}
+	
+	public abstract class Base : Generics.IInterface
+	{
+		// constraints must be repeated on implicit interface implementation
+		public abstract void Method1<T>() where T : class;
+		
+		// constraints must not be specified on explicit interface implementation
+		void Generics.IInterface.Method2<T>()
+		{
+		}
+	}
+	
+	public class Derived : Generics.Base
+	{
+		// constraints are inherited automatically and must not be specified
+		public override void Method1<T>()
+		{
+		}
+	}
+	
+	private const Generics.MyArray<string>.NestedEnum enumVal = Generics.MyArray<string>.NestedEnum.A;
+	private static Type type1 = typeof(List<>);
+	private static Type type2 = typeof(Generics.MyArray<>);
+	private static Type type3 = typeof(List<>.Enumerator);
+	private static Type type4 = typeof(Generics.MyArray<>.NestedClass<>);
+	private static Type type5 = typeof(List<int>[]);
+	private static Type type6 = typeof(Generics.MyArray<>.NestedEnum);
+	
+	public static void MethodWithConstraint<T, S>() where T : class, S where S : ICloneable, new()
+	{
+	}
+	
+	public static void MethodWithStructConstraint<T>() where T : struct
+	{
+	}
+	
+	public static Dictionary<string, string>.KeyCollection.Enumerator GetEnumerator(Dictionary<string, string> d, Generics.MyArray<string>.NestedClass<int> nc)
+	{
+		// Tests references to inner classes in generic classes
+		return d.Keys.GetEnumerator();
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/Helpers/CodeAssert.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using DiffLib;
+using NUnit.Framework;
+
+namespace ICSharpCode.Decompiler.Tests.Helpers
+{
+	public class CodeAssert
+	{
+		public static void AreEqual(string input1, string input2)
+		{
+			var diff = new StringWriter();
+			if (!Compare(input1, input2, diff)) {
+				Assert.Fail(diff.ToString());
+			}
+		}
+
+		static bool Compare(string input1, string input2, StringWriter diff)
+		{
+			var differ = new AlignedDiff<string>(
+				NormalizeAndSplitCode(input1),
+				NormalizeAndSplitCode(input2),
+				new CodeLineEqualityComparer(),
+				new StringSimilarityComparer(),
+				new StringAlignmentFilter());
+
+			bool result = true, ignoreChange;
+
+			int line1 = 0, line2 = 0;
+
+			foreach (var change in differ.Generate()) {
+				switch (change.Change) {
+					case ChangeType.Same:
+						diff.Write("{0,4} {1,4} ", ++line1, ++line2);
+						diff.Write("  ");
+						diff.WriteLine(change.Element1);
+						break;
+					case ChangeType.Added:
+						diff.Write("     {1,4} ", line1, ++line2);
+						result &= ignoreChange = ShouldIgnoreChange(change.Element2);
+						diff.Write(ignoreChange ? "    " : " +  ");
+						diff.WriteLine(change.Element2);
+						break;
+					case ChangeType.Deleted:
+						diff.Write("{0,4}      ", ++line1, line2);
+						result &= ignoreChange = ShouldIgnoreChange(change.Element1);
+						diff.Write(ignoreChange ? "    " : " -  ");
+						diff.WriteLine(change.Element1);
+						break;
+					case ChangeType.Changed:
+						diff.Write("{0,4}      ", ++line1, line2);
+						result = false;
+						diff.Write("(-) ");
+						diff.WriteLine(change.Element1);
+						diff.Write("     {1,4} ", line1, ++line2);
+						diff.Write("(+) ");
+						diff.WriteLine(change.Element2);
+						break;
+				}
+			}
+
+			return result;
+		}
+
+		class CodeLineEqualityComparer : IEqualityComparer<string>
+		{
+			private IEqualityComparer<string> baseComparer = EqualityComparer<string>.Default;
+
+			public bool Equals(string x, string y)
+			{
+				return baseComparer.Equals(
+					NormalizeLine(x),
+					NormalizeLine(y)
+				);
+			}
+
+			public int GetHashCode(string obj)
+			{
+				return baseComparer.GetHashCode(NormalizeLine(obj));
+			}
+		}
+
+		private static string NormalizeLine(string line)
+		{
+			line = line.Trim();
+			var index = line.IndexOf("//");
+			if (index >= 0) {
+				return line.Substring(0, index);
+			} else if (line.StartsWith("#")) {
+				return string.Empty;
+			} else {
+				return line;
+			}
+		}
+
+		private static bool ShouldIgnoreChange(string line)
+		{
+			// for the result, we should ignore blank lines and added comments
+			return NormalizeLine(line) == string.Empty;
+		}
+
+		private static IEnumerable<string> NormalizeAndSplitCode(string input)
+		{
+			return input.Split(new[] { "\r\n", "\n\r", "\n", "\r" }, StringSplitOptions.None);
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/Helpers/RemoveCompilerAttribute.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+using ICSharpCode.Decompiler.Ast.Transforms;
+using ICSharpCode.NRefactory.CSharp;
+
+namespace ICSharpCode.Decompiler.Tests.Helpers
+{
+	class RemoveCompilerAttribute : DepthFirstAstVisitor<object, object>, IAstTransform
+	{
+		public override object VisitAttribute(NRefactory.CSharp.Attribute attribute, object data)
+		{
+			var section = (AttributeSection)attribute.Parent;
+			SimpleType type = attribute.Type as SimpleType;
+			if (section.AttributeTarget == "assembly" &&
+				(type.Identifier == "CompilationRelaxations" || type.Identifier == "RuntimeCompatibility" || type.Identifier == "SecurityPermission" || type.Identifier == "AssemblyVersion"))
+			{
+				attribute.Remove();
+				if (section.Attributes.Count == 0)
+					section.Remove();
+			}
+			if (section.AttributeTarget == "module" && type.Identifier == "UnverifiableCode")
+			{
+				attribute.Remove();
+				if (section.Attributes.Count == 0)
+					section.Remove();
+			}
+			return null;
+		}
+
+		public void Run(AstNode node)
+		{
+			node.AcceptVisitor(this, null);
+		}
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/ICSharpCode.Decompiler.Tests.csproj

@@ -0,0 +1,113 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+  <PropertyGroup>
+    <ProjectGuid>{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}</ProjectGuid>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <OutputType>Library</OutputType>
+    <RootNamespace>ICSharpCode.Decompiler.Tests</RootNamespace>
+    <AssemblyName>ICSharpCode.Decompiler.Tests</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+    <NoStdLib>False</NoStdLib>
+    <WarningLevel>4</WarningLevel>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <CheckForOverflowUnderflow>False</CheckForOverflowUnderflow>
+    <NoWarn>67,169,1058,728</NoWarn>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Platform)' == 'x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <RegisterForComInterop>False</RegisterForComInterop>
+    <GenerateSerializationAssemblies>Auto</GenerateSerializationAssemblies>
+    <BaseAddress>4194304</BaseAddress>
+    <FileAlignment>4096</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <OutputPath>..\bin\Debug\</OutputPath>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>Full</DebugType>
+    <Optimize>False</Optimize>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <OutputPath>..\bin\Release\</OutputPath>
+    <DebugSymbols>false</DebugSymbols>
+    <DebugType>None</DebugType>
+    <Optimize>True</Optimize>
+    <DefineConstants>TRACE</DefineConstants>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="DiffLib">
+      <HintPath>..\..\packages\DiffLib.1.0.0.55\lib\net35-Client\DiffLib.dll</HintPath>
+    </Reference>
+    <Reference Include="nunit.framework">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>.\nunit.framework.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="CallOverloadedMethod.cs" />
+    <Compile Include="CheckedUnchecked.cs" />
+    <Compile Include="CustomShortCircuitOperators.cs" />
+    <Compile Include="Helpers\CodeAssert.cs" />
+    <Compile Include="IncrementDecrement.cs" />
+    <Compile Include="PInvoke.cs" />
+    <Compile Include="QueryExpressions.cs" />
+    <Compile Include="Switch.cs" />
+    <Compile Include="TypeAnalysisTests.cs" />
+    <Compile Include="UndocumentedExpressions.cs" />
+    <Compile Include="UnsafeCode.cs" />
+    <Compile Include="Types\S_TypeDeclarations.cs" />
+    <Compile Include="YieldReturn.cs" />
+    <None Include="packages.config" />
+    <None Include="Types\S_EnumSamples.cs" />
+    <None Include="CustomAttributes\S_AssemblyCustomAttribute.cs" />
+    <Compile Include="Helpers\RemoveCompilerAttribute.cs" />
+    <Compile Include="Types\S_TypeMemberDeclarations.cs" />
+    <Compile Include="Types\EnumTests.cs" />
+    <Compile Include="Types\TypeTests.cs" />
+    <Compile Include="DelegateConstruction.cs" />
+    <None Include="CustomAttributes\S_CustomAttributes.cs" />
+    <Compile Include="Loops.cs" />
+    <Compile Include="PropertiesAndEvents.cs" />
+    <None Include="CustomAttributes\S_CustomAttributeSamples.cs" />
+    <Compile Include="CodeSampleFileParser.cs" />
+    <Compile Include="CustomAttributes\CustomAttributeTests.cs" />
+    <Compile Include="DecompilerTestBase.cs" />
+    <Compile Include="InitializerTests.cs" />
+    <Compile Include="ExceptionHandling.cs" />
+    <Compile Include="Generics.cs" />
+    <Compile Include="MultidimensionalArray.cs" />
+    <Compile Include="TestRunner.cs" />
+    <Compile Include="ValueTypes.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\Mono.Cecil\Mono.Cecil.csproj">
+      <Project>{D68133BD-1E63-496E-9EDE-4FBDBF77B486}</Project>
+      <Name>Mono.Cecil</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\NRefactory\ICSharpCode.NRefactory\ICSharpCode.NRefactory.csproj">
+      <Project>{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}</Project>
+      <Name>ICSharpCode.NRefactory</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\ICSharpCode.Decompiler.csproj">
+      <Project>{984CC812-9470-4A13-AFF9-CC44068D666C}</Project>
+      <Name>ICSharpCode.Decompiler</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup />
+  <ItemGroup>
+    <None Include="BooleanConsumedAsInteger.il" />
+    <None Include="StackTests\StackTests.il" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
+</Project>

src/Libraries/ICSharpCode.Decompiler/Tests/IncrementDecrement.cs

@@ -0,0 +1,254 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+
+public class IncrementDecrement
+{
+	[Flags]
+	private enum MyEnum
+	{
+		None = 0,
+		One = 1,
+		Two = 2,
+		Four = 4
+	}
+	
+	public class MutableClass
+	{
+		public int Field;
+		
+		public int Property
+		{
+			get;
+			set;
+		}
+		
+		public uint this[string name]
+		{
+			get
+			{
+				return 0u;
+			}
+			set
+			{
+			}
+		}
+	}
+	
+	private IncrementDecrement.MyEnum enumField;
+	public static int StaticField;
+	
+	public static int StaticProperty
+	{
+		get;
+		set;
+	}
+	
+	private IncrementDecrement.MutableClass M()
+	{
+		return new IncrementDecrement.MutableClass();
+	}
+	
+	private int[,] Array()
+	{
+		return null;
+	}
+	
+	private unsafe int* GetPointer()
+	{
+		return null;
+	}
+	
+	public int PreIncrementInAddition(int i, int j)
+	{
+		return i + ++j;
+	}
+	
+	public int PreIncrementArrayElement(int[] array, int pos)
+	{
+		return --array[pos];
+	}
+	
+	public int PreIncrementInstanceField()
+	{
+		return ++this.M().Field;
+	}
+	
+	public int PreIncrementInstanceField2(IncrementDecrement.MutableClass m)
+	{
+		return ++m.Field;
+	}
+	
+	public int PreIncrementInstanceProperty()
+	{
+		return ++this.M().Property;
+	}
+	
+	public int PreIncrementStaticField()
+	{
+		return ++IncrementDecrement.StaticField;
+	}
+	
+	public int PreIncrementStaticProperty()
+	{
+		return ++IncrementDecrement.StaticProperty;
+	}
+	
+//	public uint PreIncrementIndexer(string name)
+//	{
+//		return ++this.M()[name];
+//	}
+	
+	public int PreIncrementByRef(ref int i)
+	{
+		return ++i;
+	}
+	
+	public unsafe int PreIncrementByPointer()
+	{
+		return ++(*this.GetPointer());
+	}
+	
+	public int PreIncrement2DArray()
+	{
+		return ++this.Array()[1, 2];
+	}
+	
+	public int CompoundAssignInstanceField()
+	{
+		return this.M().Field *= 10;
+	}
+	
+	public int CompoundAssignInstanceProperty()
+	{
+		return this.M().Property *= 10;
+	}
+	
+	public int CompoundAssignStaticField()
+	{
+		return IncrementDecrement.StaticField ^= 100;
+	}
+	
+	public int CompoundAssignStaticProperty()
+	{
+		return IncrementDecrement.StaticProperty &= 10;
+	}
+	
+	public int CompoundAssignArrayElement1(int[] array, int pos)
+	{
+		return array[pos] *= 10;
+	}
+	
+	public int CompoundAssignArrayElement2(int[] array)
+	{
+		return array[Environment.TickCount] *= 10;
+	}
+	
+//	public uint CompoundAssignIndexer(string name)
+//	{
+//		return this.M()[name] -= 2;
+//	}
+	
+	public int CompoundAssignIncrement2DArray()
+	{
+		return this.Array()[1, 2] %= 10;
+	}
+	
+	public int CompoundAssignByRef(ref int i)
+	{
+		return i <<= 2;
+	}
+	
+	public unsafe double CompoundAssignByPointer(double* ptr)
+	{
+		return *ptr /= 1.5;
+	}
+	
+	public void CompoundAssignEnum()
+	{
+		this.enumField |= IncrementDecrement.MyEnum.Two;
+		this.enumField &= ~IncrementDecrement.MyEnum.Four;
+	}
+	
+	public int PostIncrementInAddition(int i, int j)
+	{
+		return i++ + j;
+	}
+	
+	public void PostIncrementInlineLocalVariable(Func<int, int> f)
+	{
+		int num = 0;
+		f(num++);
+	}
+	
+	public int PostIncrementArrayElement(int[] array, int pos)
+	{
+		return array[pos]--;
+	}
+	
+	public int PostIncrementStaticField()
+	{
+		return IncrementDecrement.StaticField++;
+	}
+	
+	public int PostIncrementStaticProperty()
+	{
+		return IncrementDecrement.StaticProperty++;
+	}
+	
+	public int PostIncrementInstanceField(IncrementDecrement.MutableClass m)
+	{
+		return m.Field++;
+	}
+	
+//	public uint PostIncrementIndexer(string name)
+//	{
+//		return this.M()[name]++;
+//	}
+
+//	public unsafe int PostIncrementOfPointer(int* ptr)
+//	{
+//		return *(ptr++);
+//	}
+
+	public int PostIncrementInstanceField()
+	{
+		return this.M().Field--;
+	}
+	
+	public int PostIncrementInstanceProperty()
+	{
+		return this.M().Property--;
+	}
+	
+	public int PostIncrement2DArray()
+	{
+		return this.Array()[IncrementDecrement.StaticField, IncrementDecrement.StaticProperty]++;
+	}
+	
+	public int PostIncrementByRef(ref int i)
+	{
+		return i++;
+	}
+	
+	public unsafe int PostIncrementByPointer()
+	{
+		return (*this.GetPointer())++;
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/InitializerTests.cs

@@ -0,0 +1,869 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+
+public class InitializerTests
+{
+	private enum MyEnum
+	{
+		a,
+		b
+	}
+
+	private enum MyEnum2
+	{
+		c,
+		d
+	}
+
+	private class Data
+	{
+		public List<InitializerTests.MyEnum2> FieldList = new List<InitializerTests.MyEnum2>();
+		public InitializerTests.MyEnum a
+		{
+			get;
+			set;
+		}
+		public List<InitializerTests.MyEnum2> PropertyList
+		{
+			get;
+			set;
+		}
+
+		public InitializerTests.Data MoreData
+		{
+			get;
+			set;
+		}
+		
+		public InitializerTests.StructData NestedStruct
+		{
+			get;
+			set;
+		}
+	}
+	
+	private struct StructData
+	{
+		public int Field;
+		public int Property 
+		{
+			get;
+			set; 
+		}
+		
+		public InitializerTests.Data MoreData
+		{
+			get;
+			set;
+		}
+		
+		public StructData(int initialValue)
+		{
+			this = default(InitializerTests.StructData);
+			this.Field = initialValue;
+			this.Property = initialValue;
+		}
+	}
+	
+	// Helper methods used to ensure initializers used within expressions work correctly
+	private static void X(object a, object b)
+	{
+	}
+
+	private static object Y()
+	{
+		return null;
+	}
+
+	#region Array Initializers
+	public static void Array1()
+	{
+		InitializerTests.X(InitializerTests.Y(), new int[]
+				{
+					1,
+					2,
+					3,
+					4, 
+					5,
+					6,
+					7,
+					8,
+					9,
+					10
+				});
+	}
+
+	public static void Array2(int a, int b, int c)
+	{
+		InitializerTests.X(InitializerTests.Y(), new int[]
+				{
+					a,
+					0,
+					b, 
+					0, 
+					c
+				});
+	}
+
+	public static void NestedArray(int a, int b, int c)
+	{
+		InitializerTests.X(InitializerTests.Y(), new int[][]
+		{
+				new int[]
+					{
+						1, 
+					2,
+					3, 
+					4,
+					5, 
+					6, 
+					7, 
+					8,
+					9, 
+					10
+					},
+				new int[]
+					{
+						a, 
+					b,
+					c
+					},
+				new int[]
+					{
+						1,
+					2, 
+					3,
+					4, 
+					5, 
+					6
+					}
+		  });
+	}
+
+	public static void ArrayBoolean()
+	{
+		InitializerTests.X(InitializerTests.Y(), new bool[]
+				{
+					true,
+					false, 
+					true, 
+					false, 
+					false, 
+					false, 
+					true, 
+					true
+				});
+	}
+
+	public static void ArrayByte()
+	{
+		InitializerTests.X(InitializerTests.Y(), new byte[]
+				{
+					1,
+					2,
+					3, 
+					4, 
+					5, 
+					6,
+					7,
+					8,
+					254,
+					255
+				});
+	}
+
+	public static void ArraySByte()
+	{
+		InitializerTests.X(InitializerTests.Y(), new sbyte[]
+				{
+					-128,
+					-127,
+					0,
+					1,
+					2,
+					3,
+					4,
+					127
+				});
+	}
+
+	public static void ArrayShort()
+	{
+		InitializerTests.X(InitializerTests.Y(), new short[]
+				{
+					-32768,
+					-1,
+					0,
+					1,
+					32767
+				});
+	}
+
+	public static void ArrayUShort()
+	{
+		InitializerTests.X(InitializerTests.Y(), new ushort[]
+				{
+					0,
+					1,
+					32767,
+					32768, 
+					65534,
+					65535
+				});
+	}
+
+	public static void ArrayInt()
+	{
+		InitializerTests.X(InitializerTests.Y(), new int[]
+				{
+					1,
+					-2,
+					2000000000,
+					4, 
+					5,
+					-6,
+					7,
+					8,
+					9, 
+					10
+				});
+	}
+
+	public static void ArrayUInt()
+	{
+		InitializerTests.X(InitializerTests.Y(), new uint[]
+				{
+					1u,
+					2000000000u,
+					3000000000u,
+					4u,
+					5u,
+					6u,
+					7u,
+					8u,
+					9u,
+					10u
+				});
+	}
+
+	public static void ArrayLong()
+	{
+		InitializerTests.X(InitializerTests.Y(), new long[]
+				{
+					-4999999999999999999L,
+					-1L,
+					0L,
+					1L,
+					4999999999999999999L
+				});
+	}
+
+	public static void ArrayULong()
+	{
+		InitializerTests.X(InitializerTests.Y(), new ulong[]
+				{
+					1uL,
+					2000000000uL,
+					3000000000uL,
+					4uL,
+					5uL,
+					6uL,
+					7uL,
+					8uL,
+					4999999999999999999uL,
+					9999999999999999999uL
+				});
+	}
+
+	public static void ArrayFloat()
+	{
+		InitializerTests.X(InitializerTests.Y(), new float[]
+				{
+					-1.5f,
+					0f,
+					1.5f,
+					float.NegativeInfinity,
+					float.PositiveInfinity,
+					float.NaN
+				});
+	}
+
+	public static void ArrayDouble()
+	{
+		InitializerTests.X(InitializerTests.Y(), new double[]
+				{
+					-1.5,
+					0.0,
+					1.5,
+					double.NegativeInfinity,
+					double.PositiveInfinity,
+					double.NaN
+				});
+	}
+
+	public static void ArrayDecimal()
+	{
+		InitializerTests.X(InitializerTests.Y(), new decimal[]
+				{
+					-100m,
+					0m,
+					100m,
+					-79228162514264337593543950335m, 
+					79228162514264337593543950335m, 
+					0.0000001m
+				});
+	}
+
+	public static void ArrayString()
+	{
+		InitializerTests.X(InitializerTests.Y(), new string[]
+				{
+					"",
+					null,
+					"Hello",
+					"World"
+				});
+	}
+
+	public static void ArrayEnum()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.MyEnum[]
+				{
+					InitializerTests.MyEnum.a,
+					InitializerTests.MyEnum.b,
+					InitializerTests.MyEnum.a,
+					InitializerTests.MyEnum.b
+				});
+	}
+	#endregion
+
+	public static void CollectionInitializerList()
+	{
+		InitializerTests.X(InitializerTests.Y(), new List<int>
+				{
+					1,
+					2,
+					3
+				});
+	}
+
+	public static void CollectionInitializerDictionary()
+	{
+		InitializerTests.X(InitializerTests.Y(), new Dictionary<string, int>
+		{
+			{
+				"First",
+				1
+			},
+			{
+				"Second",
+				2
+			},
+			{
+				"Third",
+				3
+			}
+		  });
+	}
+
+	public static void CollectionInitializerDictionaryWithEnumTypes()
+	{
+		InitializerTests.X(InitializerTests.Y(), new Dictionary<InitializerTests.MyEnum, InitializerTests.MyEnum2>
+		{
+			{
+				InitializerTests.MyEnum.a,
+				InitializerTests.MyEnum2.c
+			},
+			{
+				InitializerTests.MyEnum.b,
+				InitializerTests.MyEnum2.d
+			}
+		  });
+	}
+
+	public static void NotACollectionInitializer()
+	{
+		List<int> list = new List<int>();
+		list.Add(1);
+		list.Add(2);
+		list.Add(3);
+		InitializerTests.X(InitializerTests.Y(), list);
+	}
+
+	public static void ObjectInitializer()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  a = InitializerTests.MyEnum.a
+		  });
+	}
+
+	public static void NotAObjectInitializer()
+	{
+		InitializerTests.Data data = new InitializerTests.Data();
+		data.a = InitializerTests.MyEnum.a;
+		InitializerTests.X(InitializerTests.Y(), data);
+	}
+
+	public static void ObjectInitializerAssignCollectionToField()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  a = InitializerTests.MyEnum.a,
+			  FieldList = new List<InitializerTests.MyEnum2>
+				{
+					InitializerTests.MyEnum2.c,
+					InitializerTests.MyEnum2.d
+				}
+		  });
+	}
+
+	public static void ObjectInitializerAddToCollectionInField()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  a = InitializerTests.MyEnum.a,
+			  FieldList =
+				{
+					InitializerTests.MyEnum2.c,
+					InitializerTests.MyEnum2.d
+				}
+		  });
+	}
+
+	public static void ObjectInitializerAssignCollectionToProperty()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  a = InitializerTests.MyEnum.a,
+			  PropertyList = new List<InitializerTests.MyEnum2>
+				{
+					InitializerTests.MyEnum2.c,
+					InitializerTests.MyEnum2.d
+				}
+		  });
+	}
+
+	public static void ObjectInitializerAddToCollectionInProperty()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  a = InitializerTests.MyEnum.a,
+			  PropertyList =
+				{
+					InitializerTests.MyEnum2.c,
+					InitializerTests.MyEnum2.d
+				}
+		  });
+	}
+
+	public static void ObjectInitializerWithInitializationOfNestedObjects()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+		  {
+			  MoreData =
+			  {
+				  a = InitializerTests.MyEnum.a
+			  }
+		  });
+	}
+	
+	public static void StructInitializer_DefaultConstructor()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.StructData 
+			{
+				Field = 1,
+				Property = 2
+			});
+	}
+	
+	public static void StructInitializer_ExplicitConstructor()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.StructData(0)
+			{
+				Field = 1,
+				Property = 2
+			});
+	}
+	
+	public static void StructInitializerWithInitializationOfNestedObjects()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.StructData
+		  {
+			MoreData =
+			{
+				a = InitializerTests.MyEnum.a,
+				FieldList =
+				{
+					InitializerTests.MyEnum2.c, 
+					InitializerTests.MyEnum2.d 
+				}
+			}
+		  });
+	}
+	
+	public static void StructInitializerWithinObjectInitializer()
+	{
+		InitializerTests.X(InitializerTests.Y(), new InitializerTests.Data
+			{
+				NestedStruct = new InitializerTests.StructData(2)
+				{
+					Field = 1,
+					Property = 2
+				}
+			});
+	}
+	
+	public void MultidimensionalInit()
+	{
+		int[,] expr_09 = new int[, ]
+		{
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            1,
+	            1,
+	            1,
+	            1
+	        },
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            1,
+	            1,
+	            1,
+	            1
+	        },
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            0,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+	        },
+
+	        {
+	            0,
+	            0,
+	            1,
+	            0
+			}
+	    };
+	}
+
+	public void MultidimensionalInit2()
+	{
+		int[][,] array = new int[][,]
+		{
+	        new int[, ]
+	            {
+
+	                {
+						0,
+						0,
+						0,
+						0
+					},
+
+	                {
+						1,
+						1,
+						1,
+						1
+					},
+
+	                {
+						0,
+						0,
+						0,
+						0
+					},
+
+	                {
+						0,
+						0,
+						0,
+						0
+					}
+
+	            },
+	        new int[, ]
+	            {
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					}
+
+	            },
+	        new int[, ]
+	            {
+
+	                {
+						0,
+						0,
+						0,
+						0
+					},
+
+	                {
+						1,
+						1,
+						1,
+						1
+					},
+
+	                {
+						0,
+						0,
+						0,
+						0
+					},
+
+	                {
+						0,
+						0,
+						0,
+						0
+					}
+	            },
+	        new int[, ]
+	            {
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					},
+
+	                {
+						0,
+						0,
+						1,
+						0
+					}
+
+	            }
+	    };
+	}
+
+	public void ArrayOfArrayOfArrayInit()
+	{
+		int[][,,] array = new int[][,,]
+		{
+			new int[, , ]
+			{
+				{
+					{
+						1,
+						2,
+						3
+					},
+					{ 
+						4,
+						5,
+						6
+					},
+					{
+						7,
+						8,
+						9
+					}
+				},
+				{
+					{
+						11,
+						12,
+						13
+					},
+					{
+						14,
+						15,
+						16
+					},
+					{
+						17,
+						18,
+						19
+					}
+				}
+			},
+
+			new int[, , ]
+			{
+				{
+					{
+						21,
+						22,
+						23
+					},
+					{
+						24,
+						25,
+						26
+					},
+					{
+						27,
+						28,
+						29
+					}
+				},
+				{
+					{
+						31,
+						32,
+						33
+					},
+					{
+						34,
+						35,
+						36
+					},
+					{
+						37,
+						38,
+						39
+					}
+				}
+			}
+	};
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/Loops.cs

@@ -0,0 +1,74 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections;
+using System.Collections.Generic;
+
+public class Loops
+{
+	public void ForEach(IEnumerable<string> enumerable)
+	{
+		foreach (string current in enumerable)
+		{
+			current.ToLower();
+		}
+	}
+	
+	public void ForEachOverList(List<string> list)
+	{
+		// List has a struct as enumerator, so produces quite different IL than foreach over the IEnumerable interface
+		foreach (string current in list)
+		{
+			current.ToLower();
+		}
+	}
+	
+	public void ForEachOverNonGenericEnumerable(IEnumerable enumerable)
+	{
+		foreach (object current in enumerable)
+		{
+			current.ToString();
+		}
+	}
+	
+	public void ForEachOverNonGenericEnumerableWithAutomaticCast(IEnumerable enumerable)
+	{
+		foreach (int num in enumerable)
+		{
+			num.ToString();
+		}
+	}
+	
+//	public void ForEachOverArray(string[] array)
+//	{
+//		foreach (string text in array)
+//		{
+//			text.ToLower();
+//		}
+//	}
+	
+	public void ForOverArray(string[] array)
+	{
+		for (int i = 0; i < array.Length; i++)
+		{
+			array[i].ToLower();
+		}
+	}
+}
+

src/Libraries/ICSharpCode.Decompiler/Tests/MultidimensionalArray.cs

@@ -0,0 +1,58 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+
+public class MultidimensionalArray
+{
+	internal class Generic<T, S> where T : new()
+	{
+		private T[,] a = new T[20, 20];
+		private S[,][] b = new S[20, 20][];
+
+		public T this[int i, int j]
+		{
+			get
+			{
+				return this.a[i, j];
+			}
+			set
+			{
+				this.a[i, j] = value;
+			}
+		}
+		
+		public void TestB(S x, ref S y)
+		{
+			this.b[5, 3] = new S[10];
+			this.b[5, 3][0] = default(S);
+			this.b[5, 3][1] = x;
+			this.b[5, 3][2] = y;
+		}
+		
+		public void PassByReference(ref T arr)
+		{
+			this.PassByReference(ref this.a[10, 10]);
+		}
+	}
+	
+	public int[][,] MakeArray()
+	{
+		return new int[10][,];
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/PInvoke.cs

@@ -0,0 +1,87 @@
+// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Runtime.InteropServices;
+
+// P/Invoke and marshalling attribute tests
+public class PInvoke
+{
+	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
+	public struct MarshalAsTest
+	{
+		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+		public uint[] FixedArray;
+		
+		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4, ArraySubType = UnmanagedType.Bool)]
+		public int[] FixedBoolArray;
+		
+		[MarshalAs(UnmanagedType.SafeArray, SafeArraySubType = VarEnum.VT_BSTR)]
+		public string[] SafeBStrArray;
+		
+		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
+		public string FixedString;
+	}
+	
+	[StructLayout(LayoutKind.Explicit)]
+	public struct Rect
+	{
+		[FieldOffset(0)]
+		public int left;
+		[FieldOffset(4)]
+		public int top;
+		[FieldOffset(8)]
+		public int right;
+		[FieldOffset(12)]
+		public int bottom;
+	}
+	
+	public static decimal MarshalAttributesOnPropertyAccessors
+	{
+		[return: MarshalAs(UnmanagedType.Currency)]
+		get
+		{
+			return 0m;
+		}
+		[param: MarshalAs(UnmanagedType.Currency)]
+		set
+		{
+		}
+	}
+	
+	[DllImport("xyz.dll", CharSet = CharSet.Auto)]
+	[return: MarshalAs(UnmanagedType.Bool)]
+	public static extern bool Method([MarshalAs(UnmanagedType.LPStr)] string input);
+	
+	[DllImport("xyz.dll")]
+	private static extern void New1(int ElemCnt, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] int[] ar);
+	
+	[DllImport("xyz.dll")]
+	private static extern void New2([MarshalAs(UnmanagedType.LPArray, SizeConst = 128)] int[] ar);
+	
+	[DllImport("xyz.dll")]
+	private static extern void New3([MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.Bool, SizeConst = 64, SizeParamIndex = 1)] int[] ar);
+	
+	public void CustomMarshal1([MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "MyCompany.MyMarshaler")] object o)
+	{
+	}
+	
+	public void CustomMarshal2([MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "MyCompany.MyMarshaler", MarshalCookie = "Cookie")] object o)
+	{
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/PropertiesAndEvents.cs

@@ -0,0 +1,81 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Text;
+
+public class PropertiesAndEvents
+{
+	public event EventHandler AutomaticEvent;
+	
+	[field: NonSerialized]
+	public event EventHandler AutomaticEventWithInitializer = delegate
+	{
+	}
+	;
+	
+	public event EventHandler CustomEvent
+	{
+		add
+		{
+			this.AutomaticEvent += value;
+		}
+		remove
+		{
+			this.AutomaticEvent -= value;
+		}
+	}
+	
+	public int AutomaticProperty
+	{
+		get;
+		set;
+	}
+	
+	public int CustomProperty
+	{
+		get
+		{
+			return this.AutomaticProperty;
+		}
+		set
+		{
+			this.AutomaticProperty = value;
+		}
+	}
+	
+	public int Getter(StringBuilder b)
+	{
+		return b.Length;
+	}
+	
+	public void Setter(StringBuilder b)
+	{
+		b.Capacity = 100;
+	}
+	
+	public char IndexerGetter(StringBuilder b)
+	{
+		return b[50];
+	}
+	
+	public void IndexerSetter(StringBuilder b)
+	{
+		b[42] = 'b';
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/QueryExpressions.cs

@@ -0,0 +1,164 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+
+public class QueryExpressions
+{
+	public class Customer
+	{
+		public int CustomerID;
+		public IEnumerable<QueryExpressions.Order> Orders;
+		public string Name;
+		public string Country;
+		public string City;
+	}
+	
+	public class Order
+	{
+		public int OrderID;
+		public DateTime OrderDate;
+		public Customer Customer;
+		public int CustomerID;
+		public decimal Total;
+		public IEnumerable<QueryExpressions.OrderDetail> Details;
+	}
+	
+	public class OrderDetail
+	{
+		public decimal UnitPrice;
+		public int Quantity;
+	}
+	
+	public IEnumerable<QueryExpressions.Customer> customers;
+	public IEnumerable<QueryExpressions.Order> orders;
+	
+	public object MultipleWhere()
+	{
+		return
+			from c in this.customers
+			where c.Orders.Count() > 10
+			where c.Country == "DE"
+			select c;
+	}
+	
+	public object SelectManyFollowedBySelect()
+	{
+		return
+			from c in this.customers
+			from o in c.Orders
+			select new { c.Name, o.OrderID, o.Total };
+	}
+	
+	public object SelectManyFollowedByOrderBy()
+	{
+		return
+			from c in this.customers
+			from o in c.Orders
+			orderby o.Total descending
+			select new { c.Name, o.OrderID, o.Total };
+	}
+	
+	public object MultipleSelectManyFollowedBySelect()
+	{
+		return
+			from c in this.customers
+			from o in c.Orders
+			from d in o.Details
+			select new { c.Name, o.OrderID, d.Quantity };
+	}
+	
+	public object MultipleSelectManyFollowedByLet()
+	{
+		return
+			from c in this.customers
+			from o in c.Orders
+			from d in o.Details
+			let x = d.Quantity * d.UnitPrice
+			select new { c.Name, o.OrderID, x };
+	}
+	
+	public object FromLetWhereSelect()
+	{
+		return
+			from o in this.orders
+			let t = o.Details.Sum(d => d.UnitPrice * d.Quantity)
+			where t >= 1000
+			select new { o.OrderID, Total = t };
+	}
+	
+	public object MultipleLet()
+	{
+		return
+			from a in this.customers
+			let b = a.Country
+			let c = a.Name
+			select b + c;
+	}
+	
+	public object Join()
+	{
+		return
+			from c in customers
+			join o in orders on c.CustomerID equals o.CustomerID
+			select new { c.Name, o.OrderDate, o.Total };
+	}
+	
+	public object JoinInto()
+	{
+		return
+			from c in customers
+			join o in orders on c.CustomerID equals o.CustomerID into co
+			let n = co.Count()
+			where n >= 10
+			select new { c.Name, OrderCount = n };
+	}
+	
+	public object OrderBy()
+	{
+		return
+			from o in orders
+			orderby o.Customer.Name, o.Total descending
+			select o;
+	}
+	
+	public object GroupBy()
+	{
+		return
+			from c in customers
+			group c.Name by c.Country;
+	}
+	
+	public object ExplicitType()
+	{
+		return
+			from Customer c in customers
+			where c.City == "London"
+			select c;
+	}
+	
+	public object QueryContinuation()
+	{
+		return
+			from c in customers
+			group c by c.Country into g
+			select new { Country = g.Key, CustCount = g.Count() };
+	}
+}

src/Libraries/ICSharpCode.Decompiler/Tests/StackTests/StackTests.il

@@ -0,0 +1,132 @@
+.assembly extern mscorlib
+{
+  .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )
+  .ver 4:0:0:0
+}
+.assembly StackTests
+{
+  .hash algorithm 0x00008004
+  .ver 1:0:4059:39717
+}
+.module StackTests.exe
+.imagebase 0x00400000
+.file alignment 0x00000200
+.stackreserve 0x00100000
+.subsystem 0x0003       // WINDOWS_CUI
+.corflags 0x00000003    //  ILONLY 32BITREQUIRED
+
+.class private auto ansi beforefieldinit StackTests.Program extends [mscorlib]System.Object
+{
+  .method public hidebysig static void  Main(string[] args) cil managed
+  {
+    .entrypoint
+    .maxstack  8
+	
+	ldc.i4.0
+	call string StackTests.Program::Test1(bool cond)
+	call void [mscorlib]System.Console::WriteLine(string) // false
+	
+	ldc.i4.1
+	call string StackTests.Program::Test1(bool cond)
+	call void [mscorlib]System.Console::WriteLine(string) // true
+	
+	ldc.i4.0
+	ldc.i4.0
+	ldc.i4.0
+	call int32 StackTests.Program::Test2(int32 switch1, int32 br1, int32 br2)
+	call void [mscorlib]System.Console::WriteLine(int32)  // 11
+	
+	ldc.i4.0
+	ldc.i4.1
+	ldc.i4.0
+	call int32 StackTests.Program::Test2(int32 switch1, int32 br1, int32 br2)
+	call void [mscorlib]System.Console::WriteLine(int32)  // 21
+	
+	ldc.i4.1
+	ldc.i4.1
+	ldc.i4.1
+	call int32 StackTests.Program::Test2(int32 switch1, int32 br1, int32 br2)
+	call void [mscorlib]System.Console::WriteLine(int32)  // 32
+	
+	ldc.i4.2
+	ldc.i4.1
+	ldc.i4.0
+	call int32 StackTests.Program::Test2(int32 switch1, int32 br1, int32 br2)
+	call void [mscorlib]System.Console::WriteLine(int32)  // 23
+	
+	ret
+  }
+
+  .method public hidebysig static string Test1(bool cond) cil managed
+  {
+	ldarg.0
+	brtrue TRUE
+	
+	FALSE:
+	ldstr "false"
+	br EXIT
+		
+	TRUE:
+	ldstr "true"
+		
+	EXIT:
+	ret
+  }
+
+  .method public hidebysig static int32 Test2(int32 switch1, int32 br1, int32 br2) cil managed
+  {
+    ldarg.0
+    switch (ENTRY1, ENTRY2, ENTRY3)
+	ldc.i4.0
+    ret
+
+    ENTRY1:
+	ldc.i4.1
+    br BRANCH1
+
+    ENTRY2:
+	ldc.i4.2
+    br BRANCH1
+
+    ENTRY3:
+	ldc.i4.3
+    br BRANCH2
+	
+	BRANCH1:
+	ldarg.1
+	brtrue BRANCH2
+	
+	EXIT1:
+	ldc.i4 10
+	add
+	ret
+	
+	BRANCH2:
+	ldarg.2
+	brtrue.s EXIT3
+	
+	EXIT2:
+	ldc.i4 20
+	add
+	ret
+	
+	EXIT3:
+	ldc.i4 30
+	add
+	ret
+  }
+
+  .method public hidebysig specialname rtspecialname 
+          instance void  .ctor() cil managed
+  {
+    // Code size       7 (0x7)
+    .maxstack  8
+    IL_0000:  ldarg.0
+    IL_0001:  call       instance void [mscorlib]System.Object::.ctor()
+    IL_0006:  ret
+  } // end of method Program::.ctor
+
+} // end of class StackTests.Program
+
+
+// =============================================================