Fix #849 - Notify user that referenced assemblies could not be found

ILSpy/ILSpy.csproj

@@ -204,6 +204,7 @@
     <Compile Include="TreeNodes\Analyzer\AnalyzedPropertyOverridesTreeNode.cs" />
     <Compile Include="TreeNodes\Analyzer\AnalyzedPropertyTreeNode.cs" />
     <Compile Include="TreeNodes\SearchMsdnContextMenuEntry.cs" />
+    <Compile Include="TreeNodes\UIHelper.cs" />
     <Compile Include="XmlDoc\AddXmlDocTransform.cs" />
     <Compile Include="XmlDoc\XmlDocKeyProvider.cs" />
     <Compile Include="XmlDoc\XmlDocLoader.cs" />
@@ -278,7 +279,7 @@
     <Compile Include="TreeNodes\ResourceNodes\ResourceTreeNode.cs" />
     <Compile Include="TreeNodes\ThreadingSupport.cs" />
     <Compile Include="TreeNodes\TypeTreeNode.cs" />
-    <EmbeddedResource Include="TextView\ILAsm-Mode.xshd" />
+	<EmbeddedResource Include="TextView\ILAsm-Mode.xshd" />
   </ItemGroup>
 
   <ItemGroup>
@@ -342,6 +343,7 @@
     <Resource Include="Images\OverlayStatic.png" />
     <Resource Include="Images\VirtualMethod.png" />
     <Resource Include="Images\PInvokeMethod.png" />
+	<Resource Include="Images\Warning.png" />
   </ItemGroup>
 
   <ItemGroup>

ILSpy/Images/ILSpyNewIconList.txt

@@ -58,3 +58,4 @@ SubTypes.png					new (Fugue: arrow-turn-270.png)
 SuperTypes.png					new (Fugue: arrow-turn-090-left.png)
 ViewCode.png					BitmapResources-data\Icons.16x16.FormsDesigner.ViewCode.png
 VirtualMethod.png				new (SharpDevelop-Team)
+Warning.png					new (Fugue: exclamation.png (32x32))

ILSpy/Languages/Language.cs

@@ -18,7 +18,6 @@
 
 using System;
 using System.Collections.Generic;
-
 using ICSharpCode.Decompiler;
 using Mono.Cecil;
 

ILSpy/TreeNodes/AssemblyTreeNode.cs

@@ -260,6 +260,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 					throw;
 				}
 			}
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileAssembly(assembly, output, options);
 		}
 

ILSpy/TreeNodes/EventTreeNode.cs

@@ -108,6 +108,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 		
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileEvent(ev, output, options);
 		}
 		

ILSpy/TreeNodes/FieldTreeNode.cs

@@ -120,6 +120,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileField(field, output, options);
 		}
 		

ILSpy/TreeNodes/MethodTreeNode.cs

@@ -17,7 +17,9 @@
 // DEALINGS IN THE SOFTWARE.
 
 using System;
+using System.Linq;
 using System.Text;
+using System.Windows.Controls;
 using System.Windows.Media;
 
 using ICSharpCode.Decompiler;
@@ -130,6 +132,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileMethod(method, output, options);
 		}
 

ILSpy/TreeNodes/NamespaceTreeNode.cs

@@ -58,6 +58,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 		
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileNamespace(name, this.Children.OfType<TypeTreeNode>().Select(t => t.TypeDefinition), output, options);
 		}
 	}

ILSpy/TreeNodes/PropertyTreeNode.cs

@@ -177,6 +177,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileProperty(property, output, options);
 		}
 		

ILSpy/TreeNodes/TypeTreeNode.cs

@@ -123,6 +123,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 		
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
+			UIHelper.AddReferenceWarningMessage(this, output, language);
 			language.DecompileType(type, output, options);
 		}
 

ILSpy/TreeNodes/UIHelper.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using ICSharpCode.Decompiler;
+
+namespace ICSharpCode.ILSpy.TreeNodes
+{
+    public static class UIHelper
+    {
+		public static void AddReferenceWarningMessage(ILSpyTreeNode node, ITextOutput output, Language language)
+		{
+			var assemblyNode = node.AncestorsAndSelf().OfType<AssemblyTreeNode>().First();
+			if (!assemblyNode.LoadedAssembly.LoadedAssemblyReferencesInfo.Any(i => i.Value.HasErrors))
+				return;
+			const string line1 = "Warning: Some assembly references could not be loaded. This might lead to incorrect decompilation of some parts,";
+			const string line2 = "for ex. property getter/setter access. To get optimal decompilation results, please manually add the references to the list of loaded assemblies.";
+			if (output is ISmartTextOutput fancyOutput) {
+				fancyOutput.AddUIElement(() => new StackPanel {
+					Margin = new Thickness(5),
+					Orientation = Orientation.Horizontal,
+					Children = {
+						new Image {
+							Width = 32,
+							Height = 32,
+							Source = Images.LoadImage(language, "Images/Warning.png")
+						},
+						new TextBlock {
+							Margin = new Thickness(5, 0, 0, 0),
+							Text = line1 + Environment.NewLine + line2
+						}
+					}
+				});
+				fancyOutput.WriteLine();
+				fancyOutput.AddButton(Images.ViewCode, "Show assembly load log", delegate {
+					MainWindow.Instance.SelectNode(assemblyNode.Children.OfType<ReferenceFolderTreeNode>().First());
+				});
+				fancyOutput.WriteLine();
+			} else {
+				language.WriteCommentLine(output, line1);
+				language.WriteCommentLine(output, line2);
+			}
+		}
+    }
+}