From 7843a5b95f9f27ff8d4e6f65d276d190f9f54e69 Mon Sep 17 00:00:00 2001
From: Siegfried Pammer <siegfriedpammer@gmail.com>
Date: Mon, 23 May 2011 20:54:42 +0200
Subject: [PATCH] implement ITypeResolver based on Cecil to avoid loading of
 assemblies using reflection

---
 ILSpy.BamlDecompiler/BamlResourceEntryNode.cs |  2 +-
 .../CecilDependencyPropertyDescriptor.cs      | 34 +++++++++
 ILSpy.BamlDecompiler/CecilType.cs             | 71 +++++++++++++++++++
 ILSpy.BamlDecompiler/CecilTypeResolver.cs     | 51 +++++++++++++
 .../ILSpy.BamlDecompiler.csproj               |  3 +
 5 files changed, 160 insertions(+), 1 deletion(-)
 create mode 100644 ILSpy.BamlDecompiler/CecilDependencyPropertyDescriptor.cs
 create mode 100644 ILSpy.BamlDecompiler/CecilType.cs
 create mode 100644 ILSpy.BamlDecompiler/CecilTypeResolver.cs

diff --git a/ILSpy.BamlDecompiler/BamlResourceEntryNode.cs b/ILSpy.BamlDecompiler/BamlResourceEntryNode.cs
index 40d850c4a..cce7182f9 100644
--- a/ILSpy.BamlDecompiler/BamlResourceEntryNode.cs
+++ b/ILSpy.BamlDecompiler/BamlResourceEntryNode.cs
@@ -51,7 +51,7 @@ namespace ILSpy.BamlDecompiler
 			bamlStream.Position = 0;
 			
 			XDocument xamlDocument;
-			using (XmlBamlReader reader = new XmlBamlReader(bamlStream))
+			using (XmlBamlReader reader = new XmlBamlReader(bamlStream, new CecilTypeResolver(asm)))
 				xamlDocument = XDocument.Load(reader);
 			
 			output.Write(xamlDocument.ToString());
diff --git a/ILSpy.BamlDecompiler/CecilDependencyPropertyDescriptor.cs b/ILSpy.BamlDecompiler/CecilDependencyPropertyDescriptor.cs
new file mode 100644
index 000000000..9a0e1e559
--- /dev/null
+++ b/ILSpy.BamlDecompiler/CecilDependencyPropertyDescriptor.cs
@@ -0,0 +1,34 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// This code is distributed under the MS-PL (for details please see \doc\MS-PL.txt)
+
+using System;
+using System.Linq;
+using ICSharpCode.ILSpy;
+using Mono.Cecil;
+using Ricciolo.StylesExplorer.MarkupReflection;
+
+namespace ILSpy.BamlDecompiler
+{
+	public class CecilDependencyPropertyDescriptor : IDependencyPropertyDescriptor
+	{
+		string member;
+		TypeDefinition type;
+		
+		public CecilDependencyPropertyDescriptor(string member, TypeDefinition type)
+		{
+			this.member = member;
+			this.type = type;
+		}
+		
+		public bool IsAttached {
+			get {
+				return type.Methods.Any(m  => m.Name == "Get" + member);
+			}
+		}
+		
+		public override string ToString()
+		{
+			return string.Format("[CecilDependencyPropertyDescriptor Member={0}, Type={1}]", member, type);
+		}
+	}
+}
diff --git a/ILSpy.BamlDecompiler/CecilType.cs b/ILSpy.BamlDecompiler/CecilType.cs
new file mode 100644
index 000000000..41a0fc203
--- /dev/null
+++ b/ILSpy.BamlDecompiler/CecilType.cs
@@ -0,0 +1,71 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// This code is distributed under the MS-PL (for details please see \doc\MS-PL.txt)
+
+using System;
+using System.Linq;
+using ICSharpCode.ILSpy;
+using Mono.Cecil;
+using Ricciolo.StylesExplorer.MarkupReflection;
+
+namespace ILSpy.BamlDecompiler
+{
+	public class CecilType : IType
+	{
+		internal readonly TypeDefinition type;
+		
+		public CecilType(TypeDefinition type)
+		{
+			this.type = type;
+		}
+		
+		public string AssemblyQualifiedName {
+			get {
+				return type.FullName +
+					", " + type.Module.Assembly.FullName;
+			}
+		}
+		
+		public bool IsSubclassOf(IType type)
+		{
+			if (type == null)
+				throw new ArgumentNullException("type");
+			if (!(type is CecilType))
+				throw new ArgumentException("type has to be a CecilType");
+			
+			CecilType ct = (CecilType)type;
+			
+			var t = ct.type;
+			
+			while (t != null) {
+				if (t == ct.type)
+					return true;
+				foreach (var @interface in t.Interfaces) {
+					var resolved = @interface.Resolve();
+					if (resolved == ct.type)
+						return true;
+				}
+				if (t.BaseType == null)
+					break;
+				
+				t = t.BaseType.Resolve();
+			}
+			
+			return false;
+		}
+		
+		public bool Equals(IType type)
+		{
+			if (type == null)
+				throw new ArgumentNullException("type");
+			if (!(type is CecilType))
+				throw new ArgumentException("type has to be a CecilType");
+			
+			return this.type == ((CecilType)type).type;
+		}
+		
+		public override string ToString()
+		{
+			return string.Format("[CecilType Type={0}]", type);
+		}
+	}
+}
diff --git a/ILSpy.BamlDecompiler/CecilTypeResolver.cs b/ILSpy.BamlDecompiler/CecilTypeResolver.cs
new file mode 100644
index 000000000..35d17c9d2
--- /dev/null
+++ b/ILSpy.BamlDecompiler/CecilTypeResolver.cs
@@ -0,0 +1,51 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
+// This code is distributed under the MS-PL (for details please see \doc\MS-PL.txt)
+
+using System;
+using System.Linq;
+using ICSharpCode.ILSpy;
+using Mono.Cecil;
+using Ricciolo.StylesExplorer.MarkupReflection;
+
+namespace ILSpy.BamlDecompiler
+{
+	/// <summary>
+	/// Description of CecilTypeResolver.
+	/// </summary>
+	public class CecilTypeResolver : ITypeResolver
+	{
+		LoadedAssembly assembly;
+		
+		public CecilTypeResolver(LoadedAssembly assembly)
+		{
+			this.assembly = assembly;
+		}
+		
+		public IType GetTypeByAssemblyQualifiedName(string name)
+		{
+			int comma = name.IndexOf(',');
+			
+			if (comma == -1)
+				throw new ArgumentException("invalid name");
+			
+			string fullName = name.Substring(0, comma);
+			string assemblyName = name.Substring(comma + 1).Trim();
+			
+			var type = assembly.AssemblyDefinition.MainModule.GetType(fullName);
+			if (type == null) {
+				var otherAssembly = assembly.LookupReferencedAssembly(assemblyName);
+				type = otherAssembly.AssemblyDefinition.MainModule.GetType(fullName);
+			}
+			
+			return new CecilType(type);
+		}
+		
+		public IDependencyPropertyDescriptor GetDependencyPropertyDescriptor(string name, IType ownerType, IType targetType)
+		{
+			if (!(ownerType is CecilType))
+				throw new ArgumentException();
+			
+			return new CecilDependencyPropertyDescriptor(name, ((CecilType)ownerType).type);
+		}
+	}
+}
diff --git a/ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj b/ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj
index 587959be6..2dffb28a5 100644
--- a/ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj
+++ b/ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj
@@ -66,6 +66,9 @@
   <ItemGroup>
     <Compile Include="BamlResourceNodeFactory.cs" />
     <Compile Include="BamlResourceEntryNode.cs" />
+    <Compile Include="CecilDependencyPropertyDescriptor.cs" />
+    <Compile Include="CecilType.cs" />
+    <Compile Include="CecilTypeResolver.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Ricciolo.StylesExplorer.MarkupReflection\AppDomainTypeResolver.cs" />
     <Compile Include="Ricciolo.StylesExplorer.MarkupReflection\BamlAssembly.cs" />